added testbios for V2

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1624 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

36 files changed, 25688 insertions, 0 deletions

diff --git a/util/vgabios/Makefile b/util/vgabios/Makefile
new file mode 100644
index 0000000000..d1c10f2361
--- /dev/null
+++ b/util/vgabios/Makefile
@@ -0,0 +1,28 @@
+CC       =  gcc
+CFLAGS   =  -Wall -Ix86emu/include -O2 -g
+
+INTOBJS  =  int10.o int15.o int16.o int1a.o inte6.o
+OBJECTS  =  testbios.o helper_exec.o helper_mem.o $(INTOBJS)
+
+LIBS     =  x86emu/src/x86emu/libx86emu.a
+
+# user space pci is the only option right now.
+OBJECTS += pci-userspace.o
+LIBS    +=  /usr/lib/libpci.a
+
+all: testbios
+
+testbios: $(OBJECTS) $(LIBS)
+	$(CC) -o testbios $(OBJECTS) $(LIBS)
+ 
+helper_exec.o: helper_exec.c test.h
+
+x86emu/src/x86emu/libx86emu.a:
+	$(MAKE) -C x86emu/src/x86emu/ -f makefile.linux
+
+clean:
+	$(MAKE) -C x86emu/src/x86emu/ -f makefile.linux clean
+	rm -f *.o *~ testbios
+
+distclean: clean
+	$(MAKE) -C x86emu/src/x86emu/ -f makefile.linux clean
diff --git a/util/vgabios/helper_exec.c b/util/vgabios/helper_exec.c
new file mode 100644
index 0000000000..ee03f4eca3
--- /dev/null
+++ b/util/vgabios/helper_exec.c
@@ -0,0 +1,267 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/int10/helper_exec.c,v 1.16 2001/04/30 14:34:57 tsi Exp $ */
+/*
+ *                   XFree86 int10 module
+ *   execute BIOS int 10h calls in x86 real mode environment
+ *                 Copyright 1999 Egbert Eich
+ *
+ *   Part of this is based on code taken from DOSEMU
+ *   (C) Copyright 1992, ..., 1999 the "DOSEMU-Development-Team"
+ */
+
+/*
+ * To debug port accesses define PRINT_PORT.
+ * Note! You also have to comment out ioperm()
+ * in xf86EnableIO(). Otherwise we won't trap
+ * on PIO.
+ */
+#include <x86emu.h>
+#include "test.h"
+#include <asm/io.h>
+#include <sys/time.h>
+
+int port_rep_inb(u16 port, u32 base, int d_f, u32 count);
+u8 x_inb(u16 port);
+u16 x_inw(u16 port);
+void x_outb(u16 port, u8 val);
+void x_outw(u16 port, u16 val);
+u32 x_inl(u16 port);
+void x_outl(u16 port, u32 val);
+
+/* general software interrupt handler */
+u32 getIntVect(int num)
+{
+	return MEM_RW(num << 2) + (MEM_RW((num << 2) + 2) << 4);
+}
+
+void pushw(u16 val)
+{
+	X86_ESP -= 2;
+	MEM_WW(((u32) X86_SS << 4) + X86_SP, val);
+}
+
+int run_bios_int(int num)
+{
+	u32 eflags;
+
+	eflags = X86_EFLAGS;
+	pushw(eflags);
+	pushw(X86_CS);
+	pushw(X86_IP);
+	X86_CS = MEM_RW((num << 2) + 2);
+	X86_IP = MEM_RW(num << 2);
+
+	//printf("%s: INT %x CS:IP = %x:%x\n", __FUNCTION__,
+	//       num, MEM_RW((num << 2) + 2), MEM_RW(num << 2));
+
+	return 1;
+}
+
+int port_rep_inb(u16 port, u32 base, int d_f, u32 count)
+{
+	register int inc = d_f ? -1 : 1;
+	u32 dst = base;
+	while (count--) {
+		MEM_WB(dst, x_inb(port));
+		dst += inc;
+	}
+	return dst - base;
+}
+
+int port_rep_inw(u16 port, u32 base, int d_f, u32 count)
+{
+	register int inc = d_f ? -2 : 2;
+	u32 dst = base;
+	while (count--) {
+		MEM_WW(dst, x_inw(port));
+		dst += inc;
+	}
+	return dst - base;
+}
+
+int port_rep_inl(u16 port, u32 base, int d_f, u32 count)
+{
+	register int inc = d_f ? -4 : 4;
+	u32 dst = base;
+	while (count--) {
+		MEM_WL(dst, x_inl(port));
+		dst += inc;
+	}
+	return dst - base;
+}
+
+int port_rep_outb(u16 port, u32 base, int d_f, u32 count)
+{
+	register int inc = d_f ? -1 : 1;
+	u32 dst = base;
+	while (count--) {
+		x_outb(port, MEM_RB(dst));
+		dst += inc;
+	}
+	return dst - base;
+}
+
+int port_rep_outw(u16 port, u32 base, int d_f, u32 count)
+{
+	register int inc = d_f ? -2 : 2;
+	u32 dst = base;
+	while (count--) {
+		x_outw(port, MEM_RW(dst));
+		dst += inc;
+	}
+	return dst - base;
+}
+
+int port_rep_outl(u16 port, u32 base, int d_f, u32 count)
+{
+	register int inc = d_f ? -4 : 4;
+	u32 dst = base;
+	while (count--) {
+		x_outl(port, MEM_RL(dst));
+		dst += inc;
+	}
+	return dst - base;
+}
+
+u8 x_inb(u16 port)
+{
+	u8 val;
+
+	val = inb(port);
+
+	//printf("inb(0x%04x) = 0x%02x\n", port, val);
+
+	return val;
+}
+
+u16 x_inw(u16 port)
+{
+	u16 val;
+
+	val = inw(port);
+
+	//printf("inw(0x%04x) = 0x%04x\n", port, val);
+	return val;
+}
+
+u32 x_inl(u16 port)
+{
+	u32 val;
+
+	val = inl(port);
+
+	//printf("inl(0x%04x) = 0x%08x\n", port, val);
+	return val;
+}
+
+void x_outb(u16 port, u8 val)
+{
+	//printf("outb(0x%02x, 0x%04x)\n", val, port);
+	outb(val, port);
+}
+
+void x_outw(u16 port, u16 val)
+{
+	//printf("outw(0x%04x, 0x%04x)\n", val, port);
+	outw(val, port);
+}
+
+void x_outl(u16 port, u32 val)
+{
+	//printf("outl(0x%08x, 0x%04x)\n", val, port);
+	outl(val, port);
+}
+
+u8 Mem_rb(int addr)
+{
+	return (*current->mem->rb) (current, addr);
+}
+
+u16 Mem_rw(int addr)
+{
+	return (*current->mem->rw) (current, addr);
+}
+
+u32 Mem_rl(int addr)
+{
+	return (*current->mem->rl) (current, addr);
+}
+
+void Mem_wb(int addr, u8 val)
+{
+	(*current->mem->wb) (current, addr, val);
+}
+
+void Mem_ww(int addr, u16 val)
+{
+	(*current->mem->ww) (current, addr, val);
+}
+
+void Mem_wl(int addr, u32 val)
+{
+	(*current->mem->wl) (current, addr, val);
+}
+
+void getsecs(unsigned long *sec, unsigned long *usec)
+{
+	struct timeval tv;
+	gettimeofday(&tv, 0);
+	*sec = tv.tv_sec;
+	*usec = tv.tv_usec;
+}
+
+#define TAG(Cfg1Addr) (Cfg1Addr & 0xffff00)
+#define OFFSET(Cfg1Addr) (Cfg1Addr & 0xff)
+
+u8 bios_checksum(u8 * start, int size)
+{
+	u8 sum = 0;
+
+	while (size-- > 0)
+		sum += *start++;
+	return sum;
+}
+
+/*
+ * Lock/Unlock legacy VGA. Some Bioses try to be very clever and make
+ * an attempt to detect a legacy ISA card. If they find one they might
+ * act very strange: for example they might configure the card as a
+ * monochrome card. This might cause some drivers to choke.
+ * To avoid this we attempt legacy VGA by writing to all know VGA
+ * disable registers before we call the BIOS initialization and
+ * restore the original values afterwards. In beween we hold our
+ * breath. To get to a (possibly exising) ISA card need to disable
+ * our current PCI card.
+ */
+/*
+ * This is just for booting: we just want to catch pure
+ * legacy vga therefore we don't worry about mmio etc.
+ * This stuff should really go into vgaHW.c. However then
+ * the driver would have to load the vga-module prior to
+ * doing int10.
+ */
+/*void
+LockLegacyVGA(int screenIndex,legacyVGAPtr vga)
+{
+    xf86SetCurrentAccess(FALSE, xf86Screens[screenIndex]);
+    vga->save_msr = inb(0x3CC);
+    vga->save_vse = inb(0x3C3);
+    vga->save_46e8 = inb(0x46e8);
+    vga->save_pos102 = inb(0x102);
+    outb(0x3C2, ~(u8)0x03 & vga->save_msr);
+    outb(0x3C3, ~(u8)0x01 & vga->save_vse);
+    outb(0x46e8, ~(u8)0x08 & vga->save_46e8);
+    outb(0x102, ~(u8)0x01 & vga->save_pos102);
+    xf86SetCurrentAccess(TRUE, xf86Screens[screenIndex]);
+}
+
+void
+UnlockLegacyVGA(int screenIndex, legacyVGAPtr vga)
+{
+    xf86SetCurrentAccess(FALSE, xf86Screens[screenIndex]);
+    outb(0x102, vga->save_pos102);
+    outb(0x46e8, vga->save_46e8);
+    outb(0x3C3, vga->save_vse);
+    outb(0x3C2, vga->save_msr);
+    xf86SetCurrentAccess(TRUE, xf86Screens[screenIndex]);
+}
+*/
diff --git a/util/vgabios/helper_mem.c b/util/vgabios/helper_mem.c
new file mode 100644
index 0000000000..be53598b03
--- /dev/null
+++ b/util/vgabios/helper_mem.c
@@ -0,0 +1,311 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/int10/helper_mem.c,v 1.21 2001/05/22 16:24:37 tsi Exp $ */
+/*
+ *                   XFree86 int10 module
+ *   execute BIOS int 10h calls in x86 real mode environment
+ *                 Copyright 1999 Egbert Eich
+ */
+#define _INT10_PRIVATE
+
+#define REG pInt
+#if 0
+typedef enum {
+	OPT_NOINT10,
+	OPT_INIT_PRIMARY,
+	OPT_BIOS_LOCATION
+} INT10Opts;
+
+static const OptionInfoRec INT10Options[] = {
+	{OPT_NOINT10, "NoINT10", OPTV_BOOLEAN, {0}, FALSE},
+	{OPT_INIT_PRIMARY, "InitPrimary", OPTV_BOOLEAN, {0}, FALSE},
+	{OPT_BIOS_LOCATION, "BiosLocation", OPTV_STRING, {0}, FALSE},
+	{-1, NULL, OPTV_NONE, {0}, FALSE},
+};
+#endif
+
+#ifdef DEBUG
+void dprint(unsigned long start, unsigned long size)
+{
+	int i, j;
+	char *c = (char *) start;
+
+	for (j = 0; j < (size >> 4); j++) {
+		char *d = c;
+		printf("\n0x%lx:  ", (unsigned long) c);
+		for (i = 0; i < 16; i++)
+			printf("%2.2x ", (unsigned char) (*(c++)));
+		c = d;
+		for (i = 0; i < 16; i++) {
+			printf("%c", ((((u8) (*c)) > 32) && (((u8) (*c)) < 128)) ?
+			       (unsigned char) (*(c)) : '.');
+			c++;
+		}
+	}
+	printf("\n");
+}
+#endif /* DEBUG */
+
+#if 0
+#ifndef _PC
+/*
+ * here we are really paranoid about faking a "real"
+ * BIOS. Most of this information was pulled from
+ * dosemu.
+ */
+void setup_int_vect(void)
+{
+	int i;
+
+	/* let the int vects point to the SYS_BIOS seg */
+	for (i = 0; i < 0x80; i++) {
+		MEM_WW(i << 2, 0);
+		MEM_WW((i << 2) + 2, SYS_BIOS >> 4);
+	}
+
+	reset_int_vect(current);
+	/* font tables default location (int 1F) */
+	MEM_WW(0x1f << 2, 0xfa6e);
+
+	/* int 11 default location (Get Equipment Configuration) */
+	MEM_WW(0x11 << 2, 0xf84d);
+	/* int 12 default location (Get Conventional Memory Size) */
+	MEM_WW(0x12 << 2, 0xf841);
+	/* int 15 default location (I/O System Extensions) */
+	MEM_WW(0x15 << 2, 0xf859);
+	/* int 1A default location (RTC, PCI and others) */
+	MEM_WW(0x1a << 2, 0xff6e);
+	/* int 05 default location (Bound Exceeded) */
+	MEM_WW(0x05 << 2, 0xff54);
+	/* int 08 default location (Double Fault) */
+	MEM_WW(0x08 << 2, 0xfea5);
+	/* int 13 default location (Disk) */
+	MEM_WW(0x13 << 2, 0xec59);
+	/* int 0E default location (Page Fault) */
+	MEM_WW(0x0e << 2, 0xef57);
+	/* int 17 default location (Parallel Port) */
+	MEM_WW(0x17 << 2, 0xefd2);
+	/* fdd table default location (int 1e) */
+	MEM_WW(0x1e << 2, 0xefc7);
+
+	/* Set Equipment flag to VGA */
+	i = MEM_RB(0x0410) & 0xCF;
+	MEM_WB(0x0410, i);
+	/* XXX Perhaps setup more of the BDA here.  See also int42(0x00). */
+}
+#endif
+
+int setup_system_bios(void *base_addr)
+{
+	char *base = (char *) base_addr;
+
+	/*
+	 * we trap the "industry standard entry points" to the BIOS
+	 * and all other locations by filling them with "hlt"
+	 * TODO: implement hlt-handler for these
+	 */
+	memset(base, 0xf4, 0x10000);
+
+	/* set bios date */
+	strcpy(base + 0x0FFF5, "06/11/99");
+	/* set up eisa ident string */
+	strcpy(base + 0x0FFD9, "PCI_ISA");
+	/* write system model id for IBM-AT */
+	*((unsigned char *) (base + 0x0FFFE)) = 0xfc;
+
+	return 1;
+}
+
+void reset_int_vect(void)
+{
+	/*
+	 * This table is normally located at 0xF000:0xF0A4.  However, int 0x42,
+	 * function 0 (Mode Set) expects it (or a copy) somewhere in the bottom
+	 * 64kB.  Note that because this data doesn't survive POST, int 0x42 should
+	 * only be used during EGA/VGA BIOS initialisation.
+	 */
+	static const u8 VideoParms[] = {
+		/* Timing for modes 0x00 & 0x01 */
+		0x38, 0x28, 0x2d, 0x0a, 0x1f, 0x06, 0x19, 0x1c,
+		0x02, 0x07, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
+		/* Timing for modes 0x02 & 0x03 */
+		0x71, 0x50, 0x5a, 0x0a, 0x1f, 0x06, 0x19, 0x1c,
+		0x02, 0x07, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
+		/* Timing for modes 0x04, 0x05 & 0x06 */
+		0x38, 0x28, 0x2d, 0x0a, 0x7f, 0x06, 0x64, 0x70,
+		0x02, 0x01, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
+		/* Timing for mode 0x07 */
+		0x61, 0x50, 0x52, 0x0f, 0x19, 0x06, 0x19, 0x19,
+		0x02, 0x0d, 0x0b, 0x0c, 0x00, 0x00, 0x00, 0x00,
+		/* Display page lengths in little endian order */
+		0x00, 0x08,	/* Modes 0x00 and 0x01 */
+		0x00, 0x10,	/* Modes 0x02 and 0x03 */
+		0x00, 0x40,	/* Modes 0x04 and 0x05 */
+		0x00, 0x40,	/* Modes 0x06 and 0x07 */
+		/* Number of columns for each mode */
+		40, 40, 80, 80, 40, 40, 80, 80,
+		/* CGA Mode register value for each mode */
+		0x2c, 0x28, 0x2d, 0x29, 0x2a, 0x2e, 0x1e, 0x29,
+		/* Padding */
+		0x00, 0x00, 0x00, 0x00
+	};
+	int i;
+
+	for (i = 0; i < sizeof(VideoParms); i++)
+		MEM_WB(i + (0x1000 - sizeof(VideoParms)), VideoParms[i]);
+	MEM_WW(0x1d << 2, 0x1000 - sizeof(VideoParms));
+	MEM_WW((0x1d << 2) + 2, 0);
+
+	printf("SETUP INT\n");
+	MEM_WW(0x10 << 2, 0xf065);
+	MEM_WW((0x10 << 2) + 2, SYS_BIOS >> 4);
+	MEM_WW(0x42 << 2, 0xf065);
+	MEM_WW((0x42 << 2) + 2, SYS_BIOS >> 4);
+	MEM_WW(0x6D << 2, 0xf065);
+	MEM_WW((0x6D << 2) + 2, SYS_BIOS >> 4);
+}
+
+void set_return_trap(void)
+{
+	/*
+	 * Here we set the exit condition:  We return when we encounter
+	 * 'hlt' (=0xf4), which we locate at address 0x600 in x86 memory.
+	 */
+	MEM_WB(0x0600, 0xf4);
+
+	/*
+	 * Allocate a segment for the stack
+	 */
+	xf86Int10AllocPages(1, current->stackseg);
+}
+
+void *xf86HandleInt10Options(ScrnInfoPtr pScrn, int entityIndex)
+{
+	EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
+	OptionInfoPtr options = NULL;
+
+	if (pEnt->device) {
+		pointer configOptions = NULL;
+
+		/* Check if xf86CollectOptions() has already been called */
+		if (((pEnt->index < 0) ||
+		     !xf86Screens[pEnt->index] ||
+		     !(configOptions = xf86Screens[pEnt->index]->options)) &&
+		    pEnt->device)
+			configOptions = pEnt->device->options;
+
+		if (configOptions) {
+			if (!(options = (OptionInfoPtr) xalloc(sizeof(INT10Options))))
+				return NULL;
+
+			(void) memcpy(options, INT10Options, sizeof(INT10Options));
+			xf86ProcessOptions(pScrn->scrnIndex, configOptions, options);
+		}
+	}
+	xfree(pEnt);
+
+	return options;
+}
+
+Bool int10skip(void *options)
+{
+	Bool noint10 = FALSE;
+
+	if (!options)
+		return FALSE;
+
+	xf86GetOptValBool(options, OPT_NOINT10, &noint10);
+	return noint10;
+}
+
+Bool int10_check_bios(int scrnIndex, int codeSeg, unsigned char *vbiosMem)
+{
+	int size;
+
+	if ((codeSeg & 0x1f) ||	/* Not 512-byte aligned otherwise */
+	    ((codeSeg << 4) < V_BIOS) || ((codeSeg << 4) >= SYS_SIZE))
+		return FALSE;
+
+	if (xf86IsPc98())
+		return FALSE;
+
+	if ((*vbiosMem != 0x55) || (*(vbiosMem + 1) != 0xAA) || !*(vbiosMem + 2))
+		return FALSE;
+
+	size = *(vbiosMem + 2) * 512;
+
+	if ((size + (codeSeg << 4)) > SYS_SIZE)
+		return FALSE;
+
+	if (bios_checksum(vbiosMem, size))
+		xf86DrvMsg(scrnIndex, X_WARNING, "Bad V_BIOS checksum\n");
+
+	return TRUE;
+}
+
+Bool initPrimary(void *options)
+{
+	Bool initPrimary = FALSE;
+
+	if (!options)
+		return FALSE;
+
+	xf86GetOptValBool(options, OPT_INIT_PRIMARY, &initPrimary);
+	return initPrimary;
+}
+
+void xf86int10ParseBiosLocation(void *options, xf86int10BiosLocationPtr bios)
+{
+	char *s;
+	char *p;
+	char *str = NULL;
+
+	if (options)
+		str = xf86GetOptValString(options, OPT_BIOS_LOCATION);
+
+	bios->bus = BUS_NONE;
+	if (!str)
+		return;
+
+	s = xstrdup(str);
+	p = strtok(s, ":");
+	if (xf86NameCmp(p, "pci"))
+		bios->bus = BUS_PCI;
+	else if (xf86NameCmp(p, "primary"))
+		bios->bus = BUS_ISA;
+
+	xfree(s);
+
+	if (bios->bus == BUS_NONE)
+		return;
+
+	s = xstrdup(str);
+	p = strchr(s, ':');
+
+	switch (bios->bus) {
+	case BUS_ISA:
+		if (p)
+			bios->location.legacy = atoi(++p);
+		else
+			bios->location.legacy = 0;
+		break;
+	case BUS_PCI:
+		if (p) {
+			bios->location.pci.bus = atoi(++p);
+			if ((p = strchr(p, ':'))) {
+				bios->location.pci.dev = atoi(++p);
+				if ((p = strchr(p, ':'))) {
+					bios->location.pci.func = atoi(++p);
+					break;
+				}
+			}
+		}
+		/* fall through */
+		bios->bus = BUS_NONE;
+		break;
+	default:
+		break;
+	}
+	xfree(s);
+}
+
+
+#endif
diff --git a/util/vgabios/int10.c b/util/vgabios/int10.c
new file mode 100644
index 0000000000..702be4f399
--- /dev/null
+++ b/util/vgabios/int10.c
@@ -0,0 +1,478 @@
+#include <stdio.h>
+#include "test.h"
+#include "pci.h"
+
+void x86emu_dump_xregs(void);
+extern ptr current;
+extern int verbose;
+
+
+#ifndef _PC
+/*
+ * This is derived from a number of PC system BIOS'es.  The intent here is to
+ * provide very primitive video support, before an EGA/VGA BIOS installs its
+ * own interrupt vector.  Here, "Ignored" calls should remain so.  "Not
+ * Implemented" denotes functionality that can be implemented should the need
+ * arise.  What are "Not Implemented" throughout are video memory accesses.
+ * Also, very little input validity checking is done here.
+ */
+int int42_handler()
+{
+
+	if (verbose && X86_AH != 0x0e) {
+		printf("int%x\n", current->num);
+		x86emu_dump_xregs();
+	}
+
+	switch (X86_AH) {
+	case 0x00:
+		/* Set Video Mode                                     */
+		/* Enter:  AL = video mode number                     */
+		/* Leave:  Nothing                                    */
+		/* Implemented (except for clearing the screen)       */
+		{		/* Localise */
+			int i;
+			u16 ioport, int1d, regvals, tmp;
+			u8 mode, cgamode, cgacolour;
+
+			/*
+			 * Ignore all mode numbers but 0x00-0x13.  Some systems also ignore
+			 * 0x0B and 0x0C, but don't do that here.
+			 */
+			if (X86_AL > 0x13)
+				break;
+
+			/*
+			 * You didn't think that was really the mode set, did you?  There
+			 * are only so many slots in the video parameter table...
+			 */
+			mode = X86_AL;
+			ioport = 0x03D4;
+			switch (MEM_RB(0x0410) & 0x30) {
+			case 0x30:	/* MDA */
+				mode = 0x07;	/* Force mode to 0x07 */
+				ioport = 0x03B4;
+				break;
+			case 0x10:	/* CGA 40x25 */
+				if (mode >= 0x07)
+					mode = 0x01;
+				break;
+			case 0x20:	/* CGA 80x25 (MCGA?) */
+				if (mode >= 0x07)
+					mode = 0x03;
+				break;
+			case 0x00:	/* EGA/VGA */
+				if (mode >= 0x07)	/* Don't try MDA timings */
+					mode = 0x01;	/* !?!?! */
+				break;
+			}
+
+			/* Locate data in video parameter table */
+			int1d = MEM_RW(0x1d << 2);
+			regvals = ((mode >> 1) << 4) + int1d;
+			cgacolour = 0x30;
+			if (mode == 0x06) {
+				regvals -= 0x10;
+				cgacolour = 0x3F;
+			}
+
+	    /** Update BIOS Data Area **/
+
+			/* Video mode */
+			MEM_WB(0x0449, mode);
+
+			/* Columns */
+			tmp = MEM_RB(mode + int1d + 0x48);
+			MEM_WW(0x044A, tmp);
+
+			/* Page length */
+			tmp = MEM_RW((mode & 0x06) + int1d + 0x40);
+			MEM_WW(0x044C, tmp);
+
+			/* Start Address */
+			MEM_WW(0x044E, 0);
+
+			/* Cursor positions, one for each display page */
+			for (i = 0x0450; i < 0x0460; i += 2)
+				MEM_WW(i, 0);
+
+			/* Cursor start & end scanlines */
+			tmp = MEM_RB(regvals + 0x0B);
+			MEM_WB(0x0460, tmp);
+			tmp = MEM_RB(regvals + 0x0A);
+			MEM_WB(0x0461, tmp);
+
+			/* Current display page number */
+			MEM_WB(0x0462, 0);
+
+			/* CRTC I/O address */
+			MEM_WW(0x0463, ioport);
+
+			/* CGA Mode register value */
+			cgamode = MEM_RB(mode + int1d + 0x50);
+			MEM_WB(0x0465, cgamode);
+
+			/* CGA Colour register value */
+			MEM_WB(0x0466, cgacolour);
+
+			/* Rows */
+			MEM_WB(0x0484, (25 - 1));
+
+			/* Programme the mode */
+			outb(ioport + 4, cgamode & 0x37);	/* Turn off screen */
+			for (i = 0; i < 0x10; i++) {
+				tmp = MEM_RB(regvals + i);
+				outb(ioport, i);
+				outb(ioport + 1, tmp);
+			}
+			outb(ioport + 5, cgacolour);	/* Select colour mode */
+			outb(ioport + 4, cgamode);	/* Turn on screen */
+		}
+		break;
+
+	case 0x01:
+		/* Set Cursor Type                                    */
+		/* Enter:  CH = starting line for cursor              */
+		/*         CL = ending line for cursor                */
+		/* Leave:  Nothing                                    */
+		/* Implemented                                        */
+		{		/* Localise */
+			u16 ioport = MEM_RW(0x0463);
+
+			MEM_WB(0x0460, X86_CL);
+			MEM_WB(0x0461, X86_CH);
+
+			outb(ioport, 0x0A);
+			outb(ioport + 1, X86_CH);
+			outb(ioport, 0x0B);
+			outb(ioport + 1, X86_CL);
+		}
+		break;
+
+	case 0x02:
+		/* Set Cursor Position                                */
+		/* Enter:  BH = display page number                   */
+		/*         DH = row                                   */
+		/*         DL = column                                */
+		/* Leave:  Nothing                                    */
+		/* Implemented                                        */
+		{		/* Localise */
+			u16 offset, ioport;
+
+			MEM_WB((X86_BH << 1) + 0x0450, X86_DL);
+			MEM_WB((X86_BH << 1) + 0x0451, X86_DH);
+
+			if (X86_BH != MEM_RB(0x0462))
+				break;
+
+			offset = (X86_DH * MEM_RW(0x044A)) + X86_DL;
+			offset += MEM_RW(0x044E) << 1;
+
+			ioport = MEM_RW(0x0463);
+			outb(ioport, 0x0E);
+			outb(ioport + 1, offset >> 8);
+			outb(ioport, 0x0F);
+			outb(ioport + 1, offset & 0xFF);
+		}
+		break;
+
+	case 0x03:
+		/* Get Cursor Position                                */
+		/* Enter:  BH = display page number                   */
+		/* Leave:  CH = starting line for cursor              */
+		/*         CL = ending line for cursor                */
+		/*         DH = row                                   */
+		/*         DL = column                                */
+		/* Implemented                                        */
+		{		/* Localise */
+			X86_CL = MEM_RB(0x0460);
+			X86_CH = MEM_RB(0x0461);
+			X86_DL = MEM_RB((X86_BH << 1) + 0x0450);
+			X86_DH = MEM_RB((X86_BH << 1) + 0x0451);
+		}
+		break;
+
+	case 0x04:
+		/* Get Light Pen Position                             */
+		/* Enter:  Nothing                                    */
+		/* Leave:  AH = 0x01 (down/triggered) or 0x00 (not)   */
+		/*         BX = pixel column                          */
+		/*         CX = pixel row                             */
+		/*         DH = character row                         */
+		/*         DL = character column                      */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf("int%x - Get Light Pen Position. "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+			X86_AH = X86_BX = X86_CX = X86_DX = 0;
+		}
+		break;
+
+	case 0x05:
+		/* Set Display Page                                   */
+		/* Enter:  AL = display page number                   */
+		/* Leave:  Nothing                                    */
+		/* Implemented                                        */
+		{		/* Localise */
+			u16 start, ioport = MEM_RW(0x0463);
+			u8 x, y;
+
+			/* Calculate new start address */
+			MEM_WB(0x0462, X86_AL);
+			start = X86_AL * MEM_RW(0x044C);
+			MEM_WW(0x044E, start);
+			start <<= 1;
+
+			/* Update start address */
+			outb(ioport, 0x0C);
+			outb(ioport + 1, start >> 8);
+			outb(ioport, 0x0D);
+			outb(ioport + 1, start & 0xFF);
+
+			/* Switch cursor position */
+			y = MEM_RB((X86_AL << 1) + 0x0450);
+			x = MEM_RB((X86_AL << 1) + 0x0451);
+			start += (y * MEM_RW(0x044A)) + x;
+
+			/* Update cursor position */
+			outb(ioport, 0x0E);
+			outb(ioport + 1, start >> 8);
+			outb(ioport, 0x0F);
+			outb(ioport + 1, start & 0xFF);
+		}
+		break;
+
+	case 0x06:
+		/* Initialise or Scroll Window Up                     */
+		/* Enter:  AL = lines to scroll up                    */
+		/*         BH = attribute for blank                   */
+		/*         CH = upper y of window                     */
+		/*         CL = left x of window                      */
+		/*         DH = lower y of window                     */
+		/*         DL = right x of window                     */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf("int%x: Initialise or Scroll Window Up - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+		}
+		break;
+
+	case 0x07:
+		/* Initialise or Scroll Window Down                   */
+		/* Enter:  AL = lines to scroll down                  */
+		/*         BH = attribute for blank                   */
+		/*         CH = upper y of window                     */
+		/*         CL = left x of window                      */
+		/*         DH = lower y of window                     */
+		/*         DL = right x of window                     */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf("int%x: Initialise or Scroll Window Down - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+		}
+		break;
+
+	case 0x08:
+		/* Read Character and Attribute at Cursor             */
+		/* Enter:  BH = display page number                   */
+		/* Leave:  AH = attribute                             */
+		/*         AL = character                             */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf
+			    ("int%x: Read Character and Attribute at Cursor - "
+			     "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+			X86_AX = 0;
+		}
+		break;
+
+	case 0x09:
+		/* Write Character and Attribute at Cursor            */
+		/* Enter:  AL = character                             */
+		/*         BH = display page number                   */
+		/*         BL = attribute (text) or colour (graphics) */
+		/*         CX = replication count                     */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf
+			    ("int%x: Write Character and Attribute at Cursor - "
+			     "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+		}
+		break;
+
+	case 0x0a:
+		/* Write Character at Cursor                          */
+		/* Enter:  AL = character                             */
+		/*         BH = display page number                   */
+		/*         BL = colour                                */
+		/*         CX = replication count                     */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf("int%x: Write Character at Cursor - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+		}
+		break;
+
+	case 0x0b:
+		/* Set Palette, Background or Border                  */
+		/* Enter:  BH = 0x00 or 0x01                          */
+		/*         BL = colour or palette (respectively)      */
+		/* Leave:  Nothing                                    */
+		/* Implemented                                        */
+		{		/* Localise */
+			u16 ioport = MEM_RW(0x0463) + 5;
+			u8 cgacolour = MEM_RB(0x0466);
+
+			if (X86_BH) {
+				cgacolour &= 0xDF;
+				cgacolour |= (X86_BL & 0x01) << 5;
+			} else {
+				cgacolour &= 0xE0;
+				cgacolour |= X86_BL & 0x1F;
+			}
+
+			MEM_WB(0x0466, cgacolour);
+			outb(ioport, cgacolour);
+		}
+		break;
+
+	case 0x0c:
+		/* Write Graphics Pixel                               */
+		/* Enter:  AL = pixel value                           */
+		/*         BH = display page number                   */
+		/*         CX = column                                */
+		/*         DX = row                                   */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf("int%x: Write Graphics Pixel - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+		}
+		break;
+
+	case 0x0d:
+		/* Read Graphics Pixel                                */
+		/* Enter:  BH = display page number                   */
+		/*         CX = column                                */
+		/*         DX = row                                   */
+		/* Leave:  AL = pixel value                           */
+		/* Not Implemented                                    */
+		{		/* Localise */
+			printf("int%x: Write Graphics Pixel - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+			X86_AL = 0;
+
+		}
+		break;
+
+	case 0x0e:
+		/* Write Character in Teletype Mode                   */
+		/* Enter:  AL = character                             */
+		/*         BH = display page number                   */
+		/*         BL = foreground colour                     */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		/* WARNING:  Emulation of BEL characters will require */
+		/*           emulation of RTC and PC speaker I/O.     */
+		/*           Also, this recurses through int 0x10     */
+		/*           which might or might not have been       */
+		/*           installed yet.                           */
+		{		/* Localise */
+#ifdef PARANOID
+			printf("int%x: Write Character in Teletype Mode - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+#endif
+			printf("%c", X86_AL);
+		}
+		break;
+
+	case 0x0f:
+		/* Get Video Mode                                     */
+		/* Enter:  Nothing                                    */
+		/* Leave:  AH = number of columns                     */
+		/*         AL = video mode number                     */
+		/*         BH = display page number                   */
+		/* Implemented                                        */
+		{		/* Localise */
+			X86_AH = MEM_RW(0x044A);
+			X86_AL = MEM_RB(0x0449);
+			X86_BH = MEM_RB(0x0462);
+		}
+		break;
+
+	case 0x10:
+		/* Colour Control (subfunction in AL)                 */
+		/* Enter:  Various                                    */
+		/* Leave:  Various                                    */
+		/* Ignored                                            */
+		break;
+
+	case 0x11:
+		/* Font Control (subfunction in AL)                   */
+		/* Enter:  Various                                    */
+		/* Leave:  Various                                    */
+		/* Ignored                                            */
+		break;
+
+	case 0x12:
+		/* Miscellaneous (subfunction in BL)                  */
+		/* Enter:  Various                                    */
+		/* Leave:  Various                                    */
+		/* Ignored.  Previous code here optionally allowed    */
+		/* the enabling and disabling of VGA, but no system   */
+		/* BIOS I've come across actually implements it.      */
+		break;
+
+	case 0x13:
+		/* Write String in Teletype Mode                      */
+		/* Enter:  AL = write mode                            */
+		/*         BL = attribute (if (AL & 0x02) == 0)       */
+		/*         CX = string length                         */
+		/*         DH = row                                   */
+		/*         DL = column                                */
+		/*         ES:BP = string segment:offset              */
+		/* Leave:  Nothing                                    */
+		/* Not Implemented                                    */
+		/* WARNING:  Emulation of BEL characters will require */
+		/*           emulation of RTC and PC speaker I/O.     */
+		/*           Also, this recurses through int 0x10     */
+		/*           which might or might not have been       */
+		/*           installed yet.                           */
+		{		/* Localise */
+			printf("int%x: Write String in Teletype Mode - "
+			       "Function not implemented.\n", current->num);
+			x86emu_dump_xregs();
+
+		}
+		break;
+
+	default:
+		/* Various extensions                                 */
+		/* Enter:  Various                                    */
+		/* Leave:  Various                                    */
+		/* Ignored                                            */
+		break;
+	}
+
+	return 1;
+}
+#endif
diff --git a/util/vgabios/int15.c b/util/vgabios/int15.c
new file mode 100644
index 0000000000..59af923ad1
--- /dev/null
+++ b/util/vgabios/int15.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include "test.h"
+
+void x86emu_dump_xregs();
+
+int int15_handler(void)
+{
+	printf("\nint15 encountered.\n");
+	x86emu_dump_xregs();
+	X86_EAX = 0;
+	return 1;
+}
diff --git a/util/vgabios/int16.c b/util/vgabios/int16.c
new file mode 100644
index 0000000000..f3a9719008
--- /dev/null
+++ b/util/vgabios/int16.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int int16_handler(void)
+{
+	printf("\nint16: keyboard not supported right now.\n");
+	return 1;
+}
diff --git a/util/vgabios/int1a.c b/util/vgabios/int1a.c
new file mode 100644
index 0000000000..48aa13e9a1
--- /dev/null
+++ b/util/vgabios/int1a.c
@@ -0,0 +1,172 @@
+#include <stdio.h>
+#include "test.h"
+#include "pci-userspace.h"
+
+#define DEBUG_INT1A
+
+#define SUCCESSFUL              0x00
+#define DEVICE_NOT_FOUND        0x86
+#define BAD_REGISTER_NUMBER     0x87
+
+void x86emu_dump_xregs(void);
+extern int verbose;
+
+
+int int1A_handler()
+{
+	PCITAG tag;
+	pciVideoPtr pvp = NULL;
+
+	if (verbose) {
+		printf("\nint1a encountered.\n");
+		x86emu_dump_xregs();
+	}
+
+	switch (X86_AX) {
+	case 0xb101:
+		X86_EAX = 0x00;	/* no config space/special cycle support */
+		X86_AL = 0x01;	/* config mechanism 1 */
+		X86_EDX = 0x20494350;	/* " ICP" */
+		X86_EBX = 0x0210;	/* Version 2.10 */
+		X86_ECX &= 0xFF00;
+		X86_ECX |= (pciNumBuses & 0xFF);	/* Max bus number in system */
+		X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+#ifdef DEBUG_INT1A
+		if (verbose)
+			printf("PCI bios present.\n");
+#endif
+		return 1;
+	case 0xb102:
+		if (X86_DX == pvp->vendor_id && X86_CX == pvp->device_id && X86_ESI == 0) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+			X86_EBX = pciSlotBX(pvp);
+		}
+#ifdef SHOW_ALL_DEVICES
+		else if ((pvp = xf86FindPciDeviceVendor(X86_EDX, X86_ECX, X86_ESI, pvp))) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+			X86_EBX = pciSlotBX(pvp);
+		}
+#endif
+		else {
+			X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ebx=0x%x eflags=0x%x\n", X86_EAX, X86_EBX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb103:
+#if 0
+		if (X86_CL == pvp->interface &&
+		    X86_CH == pvp->subclass &&
+		    ((X86_ECX & 0xFFFF0000) >> 16) == pvp->class) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EBX = pciSlotBX(pvp);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		}
+#else
+		/* FIXME: dirty hack */
+		if (0);
+#endif
+#ifdef SHOW_ALL_DEVICES
+		else if ((pvp = FindPciClass(X86_CL, X86_CH,
+					     (X86_ECX & 0xffff0000) >> 16,
+					     X86_ESI, pvp))) {
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+			X86_EBX = pciSlotBX(pvp);
+		}
+#endif
+		else {
+			X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb108:
+		if ((tag = findPci(X86_EBX))) {
+			X86_CL = pciReadByte(tag, X86_EDI);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb109:
+		if ((tag = findPci(X86_EBX))) {
+			X86_CX = pciReadWord(tag, X86_EDI);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10a:
+		if ((tag = findPci(X86_EBX))) {
+			X86_ECX = pciReadLong(tag, X86_EDI);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10b:
+		if ((tag = findPci(X86_EBX))) {
+			pciWriteByte(tag, X86_EDI, X86_CL);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10c:
+		if ((tag = findPci(X86_EBX))) {
+			pciWriteWord(tag, X86_EDI, X86_CX);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	case 0xb10d:
+		if ((tag = findPci(X86_EBX))) {
+			pciWriteLong(tag, X86_EDI, X86_ECX);
+			X86_EAX = X86_AL | (SUCCESSFUL << 8);
+			X86_EFLAGS &= ~((unsigned long) 0x01);	/* clear carry flag */
+		} else {
+			X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8);
+			X86_EFLAGS |= ((unsigned long) 0x01);	/* set carry flag */
+		}
+#ifdef DEBUG_INT1A
+		printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS);
+#endif
+		return 1;
+	default:
+		printf("int1a: subfunction not implemented.\n");
+		return 0;
+	}
+}
diff --git a/util/vgabios/inte6.c b/util/vgabios/inte6.c
new file mode 100644
index 0000000000..0f6a578ac0
--- /dev/null
+++ b/util/vgabios/inte6.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int intE6_handler()
+{
+#if 0
+	pciVideoPtr pvp;
+
+	if ((pvp = xf86GetPciInfoForEntity(pInt->entityIndex)))
+		X86_AX = (pvp->bus << 8) | (pvp->device << 3) | (pvp->func & 0x7);
+	pushw(X86_CS);
+	pushw(X86_IP);
+	X86_CS = pInt->BIOSseg;
+	X86_EIP = 0x0003;
+	X86_ES = 0;		/* standard pc es */
+#endif
+	printf("intE6 not supported right now.\n");
+	return 1;
+}
diff --git a/util/vgabios/pci-userspace.c b/util/vgabios/pci-userspace.c
new file mode 100644
index 0000000000..aea3f6983d
--- /dev/null
+++ b/util/vgabios/pci-userspace.c
@@ -0,0 +1,130 @@
+#include <stdio.h>
+#include <pci/pci.h>
+#include "pci.h"
+
+#define PCITAG struct pci_filter *
+
+#define DEBUG_PCI 1
+
+struct pci_access *pacc;
+struct pci_dev *dev;
+
+struct pci_filter ltag;
+
+
+int pciNumBuses = 0;
+
+int pciInit(void)
+{
+	pacc = pci_alloc();
+
+	pci_init(pacc);
+	pci_scan_bus(pacc);
+	for (dev = pacc->devices; dev; dev = dev->next) {
+		pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES);
+	}
+	return 0;
+}
+
+int pciExit(void)
+{
+	pci_cleanup(pacc);
+	return 0;
+}
+
+PCITAG findPci(unsigned short bx)
+{
+	PCITAG tag = &ltag;
+
+	int bus = (bx >> 8) & 0xFF;
+	int slot = (bx >> 3) & 0x1F;
+	int func = bx & 0x7;
+
+	tag->bus = bus;
+	tag->slot = slot;
+	tag->func = func;
+
+	if (pci_get_dev(pacc, bus, slot, func))
+		return tag;
+
+	return NULL;
+}
+
+u32 pciSlotBX(PCITAG tag)
+{
+	return (tag->bus << 8) | (tag->slot << 3) | (tag->func);
+}
+
+u8 pciReadByte(PCITAG tag, u32 idx)
+{
+	struct pci_dev *d;
+	if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
+		return pci_read_byte(d, idx);
+#ifdef DEBUG_PCI
+	printf("PCI: device not found while read byte (%x:%x.%x)\n",
+	       tag->bus, tag->slot, tag->func);
+#endif
+	return 0;
+}
+
+u16 pciReadWord(PCITAG tag, u32 idx)
+{
+	struct pci_dev *d;
+	if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
+		return pci_read_word(d, idx);
+#ifdef DEBUG_PCI
+	printf("PCI: device not found while read word (%x:%x.%x)\n",
+	       tag->bus, tag->slot, tag->func);
+#endif
+	return 0;
+}
+
+u32 pciReadLong(PCITAG tag, u32 idx)
+{
+	struct pci_dev *d;
+	if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
+		return pci_read_long(d, idx);
+#ifdef DEBUG_PCI
+	printf("PCI: device not found while read long (%x:%x.%x)\n",
+	       tag->bus, tag->slot, tag->func);
+#endif
+	return 0;
+}
+
+
+void pciWriteLong(PCITAG tag, u32 idx, u32 data)
+{
+	struct pci_dev *d;
+	if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
+		pci_write_long(d, idx, data);
+#ifdef DEBUG_PCI
+	else
+		printf("PCI: device not found while write long (%x:%x.%x)\n",
+		       tag->bus, tag->slot, tag->func);
+#endif
+}
+
+void pciWriteWord(PCITAG tag, u32 idx, u16 data)
+{
+	struct pci_dev *d;
+	if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
+		pci_write_word(d, idx, data);
+#ifdef DEBUG_PCI
+	else
+		printf("PCI: device not found while write word (%x:%x.%x)\n",
+		       tag->bus, tag->slot, tag->func);
+#endif
+
+}
+
+void pciWriteByte(PCITAG tag, u32 idx, u8 data)
+{
+	struct pci_dev *d;
+	if ((d = pci_get_dev(pacc, tag->bus, tag->slot, tag->func)))
+		pci_write_long(d, idx, data);
+#ifdef DEBUG_PCI
+	else
+		printf("PCI: device not found while write long (%x:%x.%x)\n",
+		       tag->bus, tag->slot, tag->func);
+#endif
+}
diff --git a/util/vgabios/pci-userspace.h b/util/vgabios/pci-userspace.h
new file mode 100644
index 0000000000..094433070f
--- /dev/null
+++ b/util/vgabios/pci-userspace.h
@@ -0,0 +1,55 @@
+#include "pci.h"
+
+typedef unsigned long pciaddr_t;
+typedef u8 byte;
+typedef u16 word;
+
+struct pci_dev {
+	struct pci_dev *next;	/* Next device in the chain */
+	word bus;		/* Higher byte can select host bridges */
+	byte dev, func;		/* Device and function */
+
+	/* These fields are set by pci_fill_info() */
+	int known_fields;	/* Set of info fields already known */
+	word vendor_id, device_id;	/* Identity of the device */
+	int irq;		/* IRQ number */
+	pciaddr_t base_addr[6];	/* Base addresses */
+	pciaddr_t size[6];	/* Region sizes */
+	pciaddr_t rom_base_addr;	/* Expansion ROM base address */
+	pciaddr_t rom_size;	/* Expansion ROM size */
+
+	/* Fields used internally: */
+	void *access;
+	void *methods;
+	byte *cache;		/* Cached information */
+	int cache_len;
+	int hdrtype;		/* Direct methods: header type */
+	void *aux;		/* Auxillary data */
+};
+
+
+struct pci_filter {
+	int bus, slot, func;	/* -1 = ANY */
+	int vendor, device;
+};
+
+
+#define PCITAG struct pci_filter *
+#define pciVideoPtr struct pci_dev *
+
+extern int pciNumBuses;
+
+int pciInit(void);
+int pciExit(void);
+
+
+PCITAG findPci(unsigned short bx);
+u32 pciSlotBX(pciVideoPtr pvp);
+
+void pciWriteLong(PCITAG tag, u32 idx, u32 data);
+void pciWriteWord(PCITAG tag, u32 idx, u16 data);
+void pciWriteByte(PCITAG tag, u32 idx, u8 data);
+
+u32 pciReadLong(PCITAG tag, u32 idx);
+u16 pciReadWord(PCITAG tag, u32 idx);
+u8 pciReadByte(PCITAG tag, u32 idx);
diff --git a/util/vgabios/pci.h b/util/vgabios/pci.h
new file mode 100644
index 0000000000..e51ebe471d
--- /dev/null
+++ b/util/vgabios/pci.h
@@ -0,0 +1,2 @@
+void x_outb(u16 port, u8 val);
+#define outb x_outb
diff --git a/util/vgabios/test.h b/util/vgabios/test.h
new file mode 100644
index 0000000000..d7daac82d9
--- /dev/null
+++ b/util/vgabios/test.h
@@ -0,0 +1,89 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/int10/xf86x86emu.h,v 1.2 2001/01/06 20:19:13 tsi Exp $ */
+/*
+ *                   XFree86 int10 module
+ *   execute BIOS int 10h calls in x86 real mode environment
+ *                 Copyright 1999 Egbert Eich
+ */
+#ifndef XF86X86EMU_H_
+#define XF86X86EMU_H_
+#include <x86emu.h>
+
+#define M _X86EMU_env
+
+#define X86_EAX M.x86.R_EAX
+#define X86_EBX M.x86.R_EBX
+#define X86_ECX M.x86.R_ECX
+#define X86_EDX M.x86.R_EDX
+#define X86_ESI M.x86.R_ESI
+#define X86_EDI M.x86.R_EDI
+#define X86_EBP M.x86.R_EBP
+#define X86_EIP M.x86.R_EIP
+#define X86_ESP M.x86.R_ESP
+#define X86_EFLAGS M.x86.R_EFLG
+
+#define X86_FLAGS M.x86.R_FLG
+#define X86_AX M.x86.R_AX
+#define X86_BX M.x86.R_BX
+#define X86_CX M.x86.R_CX
+#define X86_DX M.x86.R_DX
+#define X86_SI M.x86.R_SI
+#define X86_DI M.x86.R_DI
+#define X86_BP M.x86.R_BP
+#define X86_IP M.x86.R_IP
+#define X86_SP M.x86.R_SP
+#define X86_CS M.x86.R_CS
+#define X86_DS M.x86.R_DS
+#define X86_ES M.x86.R_ES
+#define X86_SS M.x86.R_SS
+#define X86_FS M.x86.R_FS
+#define X86_GS M.x86.R_GS
+
+#define X86_AL M.x86.R_AL
+#define X86_BL M.x86.R_BL
+#define X86_CL M.x86.R_CL
+#define X86_DL M.x86.R_DL
+
+#define X86_AH M.x86.R_AH
+#define X86_BH M.x86.R_BH
+#define X86_CH M.x86.R_CH
+#define X86_DH M.x86.R_DH
+
+
+/* int10 info structure */
+typedef struct {
+	u16 BIOSseg;
+	u16 inb40time;
+	struct _mem *mem;
+	int num;
+	int ax;
+	int bx;
+	int cx;
+	int dx;
+	int si;
+	int di;
+	int es;
+	int bp;
+	int flags;
+	int stackseg;
+} _ptr, *ptr;
+
+typedef struct _mem {
+	u8(*rb) (ptr, int);
+	u16(*rw) (ptr, int);
+	u32(*rl) (ptr, int);
+	void (*wb) (ptr, int, u8);
+	void (*ww) (ptr, int, u16);
+	void (*wl) (ptr, int, u32);
+} mem;
+
+#define MEM_WB(where, what) wrb(where,what)
+#define MEM_WW(where, what) wrw(where, what)
+#define MEM_WL(where, what) wrl(where, what)
+
+#define MEM_RB(where) rdb(where)
+#define MEM_RW(where) rdw(where)
+#define MEM_RL(where) rdl(where)
+
+extern ptr current;
+
+#endif
diff --git a/util/vgabios/testbios.c b/util/vgabios/testbios.c
new file mode 100644
index 0000000000..891e5d2ad7
--- /dev/null
+++ b/util/vgabios/testbios.c
@@ -0,0 +1,328 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/io.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <getopt.h>
+
+#define die(x) { perror(x); exit(1); }
+
+#include <x86emu.h>
+#include "test.h"
+#include "pci-userspace.h"
+
+void x86emu_dump_xregs(void);
+int int15_handler(void);
+int int16_handler(void);
+int int1A_handler(void);
+#ifndef _PC
+int int42_handler(void);
+#endif
+int intE6_handler(void);
+
+void pushw(u16 val);
+
+extern int teststart, testend;
+
+_ptr p;
+ptr current = 0;
+unsigned char biosmem[1024 * 1024];
+
+int verbose = 0;
+
+
+/* Interrupt multiplexer */
+
+void do_int(int num)
+{
+	int ret = 0;
+
+	printf("int%x vector at %x\n", num, getIntVect(num));
+
+	/* This is a pInt leftover */
+	current->num = num;
+
+	switch (num) {
+#ifndef _PC
+	case 0x10:
+	case 0x42:
+	case 0x6D:
+
+		if (getIntVect(num) == 0xFF065) {
+			ret = int42_handler();
+		}
+		break;
+#endif
+	case 0x15:
+		ret = int15_handler();
+		break;
+	case 0x16:
+		ret = int16_handler();
+		break;
+	case 0x1A:
+		ret = int1A_handler();
+		break;
+	case 0xe6:
+		ret = intE6_handler();
+		break;
+	default:
+		break;
+	}
+
+	if (!ret)
+		ret = run_bios_int(num);
+
+	if (!ret) {
+		printf("\nint%x: not implemented\n", num);
+		x86emu_dump_xregs();
+	}
+}
+
+unsigned char *mapitin(char *file, off_t where, size_t size)
+{
+	void *z;
+
+	int fd = open(file, O_RDWR, 0);
+
+	if (fd < 0)
+		die(file);
+	z = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, where);
+	if (z == (void *) -1)
+		die("mmap");
+	close(fd);
+
+	return z;
+
+}
+
+u8 x_inb(u16 port);
+u16 x_inw(u16 port);
+void x_outb(u16 port, u8 val);
+void x_outw(u16 port, u16 val);
+u32 x_inl(u16 port);
+void x_outl(u16 port, u32 val);
+
+
+X86EMU_pioFuncs myfuncs = {
+	x_inb, x_inw, x_inl,
+	x_outb, x_outw, x_outl
+};
+
+
+void usage(char *name)
+{
+	printf
+	    ("Usage: %s [-c codesegment] [-s size] [-b base] [-i ip] [-t] <filename> ... \n",
+	     name);
+}
+
+int main(int argc, char **argv)
+{
+	char *absegname = 0;
+	void *abseg = 0;
+	int i, c, trace = 0;
+	unsigned char *cp;
+	char *filename;
+	size_t size = 0;
+	int base = 0;
+	int have_size = 0, have_base = 0, have_ip = 0, have_cs = 0;
+	int parse_rom = 0;
+	char *fsegname = 0;
+	unsigned char *fsegptr;
+	unsigned short initialip = 0, initialcs = 0, devfn = 0;
+	X86EMU_intrFuncs intFuncs[256];
+	void X86EMU_setMemBase(void *base, size_t size);
+	void X86EMU_setabseg(void *abseg);
+	void x86emu_dump_xregs(void);
+	int X86EMU_set_debug(int debug);
+	int debugflag = 0;
+
+	const char *optstring = "vh?b:i:c:s:tpd:";
+	while (1) {
+		int option_index = 0;
+		static struct option long_options[] = {
+			{"verbose", 0, 0, 'v'},
+			{"help", 0, 0, 'h'},
+			{"trace", 0, 0, 't'},
+			{"base", 1, 0, 'b'},
+			{"fseg", 1, 0, 'f'},
+			{"instructionpointer", 1, 0, 'i'},
+			{"codesegment", 1, 0, 'c'},
+			{"absegment", 1, 0, 'a'},
+			{"size", 1, 0, 's'},
+			{"parserom", 0, 0, 'p'},
+			{"device", 1, 0, 'd'},
+			{"debug", 1, 0, 'D'},
+			{0, 0, 0, 0}
+		};
+		c = getopt_long(argc, argv, optstring, long_options, &option_index);
+		if (c == -1)
+			break;
+		switch (c) {
+		case 'v':
+			verbose = 1;
+			break;
+		case 'h':
+		case '?':
+			usage(argv[0]);
+			return 0;
+		case 't':
+			trace = 1;
+			break;
+		case 'b':
+			base = strtol(optarg, 0, 0);
+			have_base = 1;
+			break;
+		case 'i':
+			initialip = strtol(optarg, 0, 0);
+			have_ip = 1;
+			break;
+		case 'c':
+			initialcs = strtol(optarg, 0, 0);
+			have_cs = 1;
+			break;
+		case 's':
+			size = strtol(optarg, 0, 0);
+			have_size = 1;
+			break;
+		case 'p':
+			printf("Parsing rom images not implemented.\n");
+			parse_rom = 1;
+			break;
+		case 'f':
+			fsegname = optarg;
+			break;
+		case 'a':
+			absegname = optarg;
+			break;
+		case 'd':
+			devfn = strtol(optarg, 0, 0);
+			break;
+		case 'D':
+			debugflag = strtol(optarg, 0, 0);
+			break;
+		default:
+			printf("Unknown option \n");
+			usage(argv[0]);
+			return 1;
+		}
+	}
+
+	if (optind >= argc) {
+		printf("Filename missing.\n");
+		usage(argv[0]);
+		return 1;
+	}
+
+	while (optind < argc) {
+		printf("running file %s\n", argv[optind]);
+		filename = argv[optind];
+		optind++;
+		/* normally we would do continue, but for
+		 * now only one filename is supported.
+		 */
+		/* continue; */
+		break;
+	}
+
+	if (!have_size) {
+		printf("No size specified. defaulting to 32k\n");
+		size = 32 * 1024;
+	}
+	if (!have_base) {
+		printf("No base specified. defaulting to 0xc0000\n");
+		base = 0xc0000;
+	}
+	if (!have_cs) {
+		printf("No initial code segment specified. defaulting to 0xc000\n");
+		initialcs = 0xc000;
+	}
+	if (!have_ip) {
+		printf
+		    ("No initial instruction pointer specified. defaulting to 0x0003\n");
+		initialip = 0x0003;
+	}
+
+	//printf("Point 1 int%x vector at %x\n", 0x42, getIntVect(0x42));
+
+	if (absegname) {
+		abseg = mapitin(absegname, (off_t) 0xa0000, 0x20000);
+		if (!abseg)
+			die(absegname);
+	}
+
+	current = &p;
+	X86EMU_setMemBase(biosmem, sizeof(biosmem));
+	X86EMU_setabseg(abseg);
+	X86EMU_setupPioFuncs(&myfuncs);
+	ioperm(0, 0x400, 1);
+
+	if (iopl(3) < 0)
+		die("iopl");
+
+	/* Emergency sync ;-) */
+	sync();
+	sync();
+
+	/* Setting up interrupt environment.
+	 * basically this means initializing PCI and
+	 * intXX handlers.
+	 */
+	pciInit();
+
+	for (i = 0; i < 256; i++)
+		intFuncs[i] = do_int;
+	X86EMU_setupIntrFuncs(intFuncs);
+	cp = mapitin(filename, (off_t) 0, size);
+
+	current->ax = devfn   ? devfn : 0xff;
+	current->dx = 0x80;
+	//      current->ip = 0;
+	for (i = 0; i < size; i++)
+		wrb(base + i, cp[i]);
+
+	if (fsegname) {
+		fsegptr = mapitin(fsegname, (off_t) 0, 0x10000);
+		for (i = 0; i < 0x10000; i++)
+			wrb(0xf0000 + i, fsegptr[i]);
+	} else {
+		char *date = "01/01/99";
+		for (i = i; date[i]; i++)
+			wrb(0xffff5 + i, date[i]);
+		wrb(0xffff7, '/');
+		wrb(0xffffa, '/');
+	}
+	/* cpu setup */
+	X86_AX = devfn ? devfn : 0xff;
+	X86_DX = 0x80;
+	X86_EIP = initialip;
+	X86_CS = initialcs;
+
+	/* Initialize stack and data segment */
+	X86_SS = 0x0030;
+	X86_DS = 0x0040;
+	X86_SP = 0xfffe;
+	/* We need a sane way to return from bios
+	 * execution. A hlt instruction and a pointer
+	 * to it, both kept on the stack, will do.
+	 */
+	pushw(0xf4f4);		/* hlt; hlt */
+	pushw(X86_SS);
+	pushw(X86_SP + 2);
+
+	X86_ES = 0x0000;
+
+	if (trace) {
+		printf("Switching to single step mode.\n");
+		X86EMU_trace_on();
+	}
+	if (debugflag) {
+		X86EMU_set_debug(debugflag);
+	}
+	X86EMU_exec();
+	/* Cleaning up */
+	pciExit();
+
+	return 0;
+}
diff --git a/util/vgabios/x86emu/include/msr.h b/util/vgabios/x86emu/include/msr.h
new file mode 100755
index 0000000000..4977b0201d
--- /dev/null
+++ b/util/vgabios/x86emu/include/msr.h
@@ -0,0 +1,33 @@
+#ifndef CPU_P6_MSR_H
+#define CPU_P6_MSR_H
+
+/*
+ * Access to machine-specific registers (available on 586 and better only)
+ * Note: the rd* operations modify the parameters directly (without using
+ * pointer indirection), this allows gcc to optimize better
+ */
+
+#define rdmsr(msr,val1,val2) \
+       __asm__ __volatile__("rdmsr" \
+			    : "=a" (val1), "=d" (val2) \
+			    : "c" (msr))
+
+#define wrmsr(msr,val1,val2) \
+     __asm__ __volatile__("wrmsr" \
+			  : /* no outputs */ \
+			  : "c" (msr), "a" (val1), "d" (val2))
+
+#define rdtsc(low,high) \
+     __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
+
+#define rdtscl(low) \
+     __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
+
+#define rdtscll(val) \
+     __asm__ __volatile__ ("rdtsc" : "=A" (val))
+
+#define rdpmc(counter,low,high) \
+     __asm__ __volatile__("rdpmc" \
+			  : "=a" (low), "=d" (high) \
+			  : "c" (counter))
+#endif /* CPU_P6_MSR_H */
diff --git a/util/vgabios/x86emu/include/x86emu.h b/util/vgabios/x86emu/include/x86emu.h
new file mode 100755
index 0000000000..24d958899f
--- /dev/null
+++ b/util/vgabios/x86emu/include/x86emu.h
@@ -0,0 +1,196 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for public specific functions.
+*               Any application linking against us should only
+*               include this header
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/include/x86emu.h,v 1.2 2000/11/21 23:10:25 tsi Exp $ */
+
+#ifndef __X86EMU_X86EMU_H
+#define __X86EMU_X86EMU_H
+
+#define printk printf
+
+#ifdef SCITECH
+#include "scitech.h"
+#define	X86API	_ASMAPI
+#define	X86APIP	_ASMAPIP
+typedef int X86EMU_pioAddr;
+#else
+#include "x86emu/types.h"
+#define	X86API
+#define	X86APIP	*
+#endif
+#include "x86emu/regs.h"
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+#pragma	pack(1)
+
+/****************************************************************************
+REMARKS:
+Data structure containing ponters to programmed I/O functions used by the
+emulator. This is used so that the user program can hook all programmed
+I/O for the emulator to handled as necessary by the user program. By
+default the emulator contains simple functions that do not do access the
+hardware in any way. To allow the emualtor access the hardware, you will
+need to override the programmed I/O functions using the X86EMU_setupPioFuncs
+function.
+
+HEADER:
+x86emu.h
+
+MEMBERS:
+inb		- Function to read a byte from an I/O port
+inw		- Function to read a word from an I/O port
+inl     - Function to read a dword from an I/O port
+outb	- Function to write a byte to an I/O port
+outw    - Function to write a word to an I/O port
+outl    - Function to write a dword to an I/O port
+****************************************************************************/
+typedef struct {
+	u8  	(X86APIP inb)(X86EMU_pioAddr addr);
+	u16 	(X86APIP inw)(X86EMU_pioAddr addr);
+	u32 	(X86APIP inl)(X86EMU_pioAddr addr);
+	void 	(X86APIP outb)(X86EMU_pioAddr addr, u8 val);
+	void 	(X86APIP outw)(X86EMU_pioAddr addr, u16 val);
+	void 	(X86APIP outl)(X86EMU_pioAddr addr, u32 val);
+	} X86EMU_pioFuncs;
+
+/****************************************************************************
+REMARKS:
+Data structure containing ponters to memory access functions used by the
+emulator. This is used so that the user program can hook all memory
+access functions as necessary for the emulator. By default the emulator
+contains simple functions that only access the internal memory of the
+emulator. If you need specialised functions to handle access to different
+types of memory (ie: hardware framebuffer accesses and BIOS memory access
+etc), you will need to override this using the X86EMU_setupMemFuncs
+function.
+
+HEADER:
+x86emu.h
+
+MEMBERS:
+rdb		- Function to read a byte from an address
+rdw		- Function to read a word from an address
+rdl     - Function to read a dword from an address
+wrb		- Function to write a byte to an address
+wrw    	- Function to write a word to an address
+wrl    	- Function to write a dword to an address
+****************************************************************************/
+typedef struct {
+	u8  	(X86APIP rdb)(u32 addr);
+	u16 	(X86APIP rdw)(u32 addr);
+	u32 	(X86APIP rdl)(u32 addr);
+	void 	(X86APIP wrb)(u32 addr, u8 val);
+	void 	(X86APIP wrw)(u32 addr, u16 val);
+	void	(X86APIP wrl)(u32 addr, u32 val);
+	} X86EMU_memFuncs;
+
+/****************************************************************************
+  Here are the default memory read and write
+  function in case they are needed as fallbacks.
+***************************************************************************/
+extern u8 X86API rdb(u32 addr);
+extern u16 X86API rdw(u32 addr);
+extern u32 X86API rdl(u32 addr);
+extern void X86API wrb(u32 addr, u8 val);
+extern void X86API wrw(u32 addr, u16 val);
+extern void X86API wrl(u32 addr, u32 val);
+ 
+#pragma	pack()
+
+/*--------------------- type definitions -----------------------------------*/
+
+typedef void (X86APIP X86EMU_intrFuncs)(int num);
+extern X86EMU_intrFuncs _X86EMU_intrTab[256];
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+void 	X86EMU_setupMemFuncs(X86EMU_memFuncs *funcs);
+void 	X86EMU_setupPioFuncs(X86EMU_pioFuncs *funcs);
+void 	X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]);
+void 	X86EMU_prepareForInt(int num);
+
+/* decode.c */
+
+void 	X86EMU_exec(void);
+void 	X86EMU_halt_sys(void);
+
+#ifdef	DEBUG
+#define	HALT_SYS()	\
+	printk("halt_sys: file %s, line %d\n", __FILE__, __LINE__), \
+	X86EMU_halt_sys()
+#else
+#define	HALT_SYS()	X86EMU_halt_sys()
+#endif
+
+/* Debug options */
+
+#define DEBUG_DECODE_F          0x000001 /* print decoded instruction  */
+#define DEBUG_TRACE_F           0x000002 /* dump regs before/after execution */
+#define DEBUG_STEP_F            0x000004
+#define DEBUG_DISASSEMBLE_F     0x000008
+#define DEBUG_BREAK_F           0x000010
+#define DEBUG_SVC_F             0x000020
+#define DEBUG_FS_F              0x000080
+#define DEBUG_PROC_F            0x000100
+#define DEBUG_SYSINT_F          0x000200 /* bios system interrupts. */
+#define DEBUG_TRACECALL_F       0x000400
+#define DEBUG_INSTRUMENT_F      0x000800
+#define DEBUG_MEM_TRACE_F       0x001000 
+#define DEBUG_IO_TRACE_F        0x002000 
+#define DEBUG_TRACECALL_REGS_F  0x004000
+#define DEBUG_DECODE_NOPRINT_F  0x008000 
+#define DEBUG_SAVE_IP_CS_F      0x010000
+#define DEBUG_SYS_F             (DEBUG_SVC_F|DEBUG_FS_F|DEBUG_PROC_F)
+
+void 	X86EMU_trace_regs(void);
+void 	X86EMU_trace_xregs(void);
+void 	X86EMU_dump_memory(u16 seg, u16 off, u32 amt);
+int 	X86EMU_trace_on(void);
+int 	X86EMU_trace_off(void);
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_X86EMU_H */
diff --git a/util/vgabios/x86emu/include/x86emu/fpu_regs.h b/util/vgabios/x86emu/include/x86emu/fpu_regs.h
new file mode 100755
index 0000000000..56e9a04d75
--- /dev/null
+++ b/util/vgabios/x86emu/include/x86emu/fpu_regs.h
@@ -0,0 +1,115 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for FPU register definitions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_FPU_REGS_H
+#define __X86EMU_FPU_REGS_H
+
+#ifdef X86_FPU_SUPPORT
+
+#pragma	pack(1)
+
+/* Basic 8087 register can hold any of the following values: */
+
+union x86_fpu_reg_u {
+    s8                  tenbytes[10];
+    double              dval;
+    float               fval;
+    s16                 sval;
+    s32                 lval;
+	};
+
+struct x86_fpu_reg {
+	union x86_fpu_reg_u reg;
+	char                tag;
+	};
+
+/*
+ * Since we are not going to worry about the problems of aliasing
+ * registers, every time a register is modified, its result type is
+ * set in the tag fields for that register.  If some operation
+ * attempts to access the type in a way inconsistent with its current
+ * storage format, then we flag the operation.  If common, we'll
+ * attempt the conversion.
+ */
+
+#define  X86_FPU_VALID          0x80
+#define  X86_FPU_REGTYP(r)      ((r) & 0x7F)
+
+#define  X86_FPU_WORD           0x0
+#define  X86_FPU_SHORT          0x1
+#define  X86_FPU_LONG           0x2
+#define  X86_FPU_FLOAT          0x3
+#define  X86_FPU_DOUBLE         0x4
+#define  X86_FPU_LDBL           0x5
+#define  X86_FPU_BSD            0x6
+
+#define  X86_FPU_STKTOP  0
+
+struct x86_fpu_registers {
+    struct x86_fpu_reg  x86_fpu_stack[8];
+    int                 x86_fpu_flags;
+    int                 x86_fpu_config;         /* rounding modes, etc. */
+    short               x86_fpu_tos, x86_fpu_bos;
+	};
+
+#pragma	pack()
+
+/*
+ * There are two versions of the following macro.
+ *
+ * One version is for opcode D9, for which there are more than 32
+ * instructions encoded in the second byte of the opcode.
+ *
+ * The other version, deals with all the other 7 i87 opcodes, for
+ * which there are only 32 strings needed to describe the
+ * instructions.
+ */
+
+#endif /* X86_FPU_SUPPORT */
+
+#ifdef DEBUG
+# define DECODE_PRINTINSTR32(t,mod,rh,rl)     	\
+	DECODE_PRINTF(t[(mod<<3)+(rh)]);
+# define DECODE_PRINTINSTR256(t,mod,rh,rl)    	\
+	DECODE_PRINTF(t[(mod<<6)+(rh<<3)+(rl)]);
+#else
+# define DECODE_PRINTINSTR32(t,mod,rh,rl)
+# define DECODE_PRINTINSTR256(t,mod,rh,rl)
+#endif
+
+#endif /* __X86EMU_FPU_REGS_H */
diff --git a/util/vgabios/x86emu/include/x86emu/regs.h b/util/vgabios/x86emu/include/x86emu/regs.h
new file mode 100755
index 0000000000..726b7ac6f0
--- /dev/null
+++ b/util/vgabios/x86emu/include/x86emu/regs.h
@@ -0,0 +1,336 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for x86 register definitions.
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/include/x86emu/regs.h,v 1.3 2001/10/28 03:32:25 tsi Exp $ */
+
+#ifndef __X86EMU_REGS_H
+#define __X86EMU_REGS_H
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+#pragma pack(1)
+
+/*
+ * General EAX, EBX, ECX, EDX type registers.  Note that for
+ * portability, and speed, the issue of byte swapping is not addressed
+ * in the registers.  All registers are stored in the default format
+ * available on the host machine.  The only critical issue is that the
+ * registers should line up EXACTLY in the same manner as they do in
+ * the 386.  That is:
+ *
+ * EAX & 0xff  === AL
+ * EAX & 0xffff == AX
+ *
+ * etc.  The result is that alot of the calculations can then be
+ * done using the native instruction set fully.
+ */
+
+#ifdef	__BIG_ENDIAN__
+
+typedef struct {
+    u32 e_reg;
+	} I32_reg_t;
+
+typedef struct {
+	u16 filler0, x_reg;
+	} I16_reg_t;
+
+typedef struct {
+	u8 filler0, filler1, h_reg, l_reg;
+	} I8_reg_t;
+
+#else /* !__BIG_ENDIAN__ */
+
+typedef struct {
+    u32 e_reg;
+	} I32_reg_t;
+
+typedef struct {
+	u16 x_reg;
+	} I16_reg_t;
+
+typedef struct {
+	u8 l_reg, h_reg;
+	} I8_reg_t;
+
+#endif /* BIG_ENDIAN */
+
+typedef union {
+	I32_reg_t   I32_reg;
+	I16_reg_t   I16_reg;
+	I8_reg_t    I8_reg;
+	} i386_general_register;
+
+struct i386_general_regs {
+	i386_general_register A, B, C, D;
+	};
+
+typedef struct i386_general_regs Gen_reg_t;
+
+struct i386_special_regs {
+	i386_general_register SP, BP, SI, DI, IP;
+	u32 FLAGS;
+	};
+
+/*  
+ * Segment registers here represent the 16 bit quantities
+ * CS, DS, ES, SS.
+ */
+
+struct i386_segment_regs {
+    u16 CS, DS, SS, ES, FS, GS;
+	};
+
+/* 8 bit registers */
+#define R_AH  gen.A.I8_reg.h_reg
+#define R_AL  gen.A.I8_reg.l_reg
+#define R_BH  gen.B.I8_reg.h_reg
+#define R_BL  gen.B.I8_reg.l_reg
+#define R_CH  gen.C.I8_reg.h_reg
+#define R_CL  gen.C.I8_reg.l_reg
+#define R_DH  gen.D.I8_reg.h_reg
+#define R_DL  gen.D.I8_reg.l_reg
+
+/* 16 bit registers */
+#define R_AX  gen.A.I16_reg.x_reg
+#define R_BX  gen.B.I16_reg.x_reg
+#define R_CX  gen.C.I16_reg.x_reg
+#define R_DX  gen.D.I16_reg.x_reg
+
+/* 32 bit extended registers */
+#define R_EAX  gen.A.I32_reg.e_reg
+#define R_EBX  gen.B.I32_reg.e_reg
+#define R_ECX  gen.C.I32_reg.e_reg
+#define R_EDX  gen.D.I32_reg.e_reg
+
+/* special registers */
+#define R_SP  spc.SP.I16_reg.x_reg
+#define R_BP  spc.BP.I16_reg.x_reg
+#define R_SI  spc.SI.I16_reg.x_reg
+#define R_DI  spc.DI.I16_reg.x_reg
+#define R_IP  spc.IP.I16_reg.x_reg
+#define R_FLG spc.FLAGS
+
+/* special registers */
+#define R_SP  spc.SP.I16_reg.x_reg
+#define R_BP  spc.BP.I16_reg.x_reg
+#define R_SI  spc.SI.I16_reg.x_reg
+#define R_DI  spc.DI.I16_reg.x_reg
+#define R_IP  spc.IP.I16_reg.x_reg
+#define R_FLG spc.FLAGS
+
+/* special registers */
+#define R_ESP  spc.SP.I32_reg.e_reg
+#define R_EBP  spc.BP.I32_reg.e_reg
+#define R_ESI  spc.SI.I32_reg.e_reg
+#define R_EDI  spc.DI.I32_reg.e_reg
+#define R_EIP  spc.IP.I32_reg.e_reg
+#define R_EFLG spc.FLAGS
+
+/* segment registers */
+#define R_CS  seg.CS
+#define R_DS  seg.DS
+#define R_SS  seg.SS
+#define R_ES  seg.ES
+#define R_FS  seg.FS
+#define R_GS  seg.GS
+
+/* flag conditions   */
+#define FB_CF 0x0001            /* CARRY flag  */
+#define FB_PF 0x0004            /* PARITY flag */
+#define FB_AF 0x0010            /* AUX  flag   */
+#define FB_ZF 0x0040            /* ZERO flag   */
+#define FB_SF 0x0080            /* SIGN flag   */
+#define FB_TF 0x0100            /* TRAP flag   */
+#define FB_IF 0x0200            /* INTERRUPT ENABLE flag */
+#define FB_DF 0x0400            /* DIR flag    */
+#define FB_OF 0x0800            /* OVERFLOW flag */
+
+/* 80286 and above always have bit#1 set */
+#define F_ALWAYS_ON  (0x0002)   /* flag bits always on */
+
+/*
+ * Define a mask for only those flag bits we will ever pass back 
+ * (via PUSHF) 
+ */
+#define F_MSK (FB_CF|FB_PF|FB_AF|FB_ZF|FB_SF|FB_TF|FB_IF|FB_DF|FB_OF)
+
+/* following bits masked in to a 16bit quantity */
+
+#define F_CF 0x0001             /* CARRY flag  */
+#define F_PF 0x0004             /* PARITY flag */
+#define F_AF 0x0010             /* AUX  flag   */
+#define F_ZF 0x0040             /* ZERO flag   */
+#define F_SF 0x0080             /* SIGN flag   */
+#define F_TF 0x0100             /* TRAP flag   */
+#define F_IF 0x0200             /* INTERRUPT ENABLE flag */
+#define F_DF 0x0400             /* DIR flag    */
+#define F_OF 0x0800             /* OVERFLOW flag */
+
+#define TOGGLE_FLAG(flag)     	(M.x86.R_FLG ^= (flag))
+#define SET_FLAG(flag)        	(M.x86.R_FLG |= (flag))
+#define CLEAR_FLAG(flag)      	(M.x86.R_FLG &= ~(flag))
+#define ACCESS_FLAG(flag)     	(M.x86.R_FLG & (flag))
+#define CLEARALL_FLAG(m)    	(M.x86.R_FLG = 0)
+
+#define CONDITIONAL_SET_FLAG(COND,FLAG) \
+  if (COND) SET_FLAG(FLAG); else CLEAR_FLAG(FLAG)
+
+#define F_PF_CALC 0x010000      /* PARITY flag has been calced    */
+#define F_ZF_CALC 0x020000      /* ZERO flag has been calced      */
+#define F_SF_CALC 0x040000      /* SIGN flag has been calced      */
+
+#define F_ALL_CALC      0xff0000        /* All have been calced   */
+
+/*
+ * Emulator machine state.
+ * Segment usage control.
+ */
+#define SYSMODE_SEG_DS_SS       0x00000001
+#define SYSMODE_SEGOVR_CS       0x00000002
+#define SYSMODE_SEGOVR_DS       0x00000004
+#define SYSMODE_SEGOVR_ES       0x00000008
+#define SYSMODE_SEGOVR_FS       0x00000010
+#define SYSMODE_SEGOVR_GS       0x00000020
+#define SYSMODE_SEGOVR_SS       0x00000040
+#define SYSMODE_PREFIX_REPE     0x00000080
+#define SYSMODE_PREFIX_REPNE    0x00000100
+#define SYSMODE_PREFIX_DATA     0x00000200
+#define SYSMODE_PREFIX_ADDR     0x00000400
+#define SYSMODE_INTR_PENDING    0x10000000
+#define SYSMODE_EXTRN_INTR      0x20000000
+#define SYSMODE_HALTED          0x40000000
+
+#define SYSMODE_SEGMASK (SYSMODE_SEG_DS_SS      | \
+						 SYSMODE_SEGOVR_CS      | \
+						 SYSMODE_SEGOVR_DS      | \
+						 SYSMODE_SEGOVR_ES      | \
+						 SYSMODE_SEGOVR_FS      | \
+						 SYSMODE_SEGOVR_GS      | \
+						 SYSMODE_SEGOVR_SS)
+#define SYSMODE_CLRMASK (SYSMODE_SEG_DS_SS      | \
+						 SYSMODE_SEGOVR_CS      | \
+						 SYSMODE_SEGOVR_DS      | \
+						 SYSMODE_SEGOVR_ES      | \
+						 SYSMODE_SEGOVR_FS      | \
+						 SYSMODE_SEGOVR_GS      | \
+						 SYSMODE_SEGOVR_SS      | \
+						 SYSMODE_PREFIX_DATA    | \
+						 SYSMODE_PREFIX_ADDR)
+
+#define  INTR_SYNCH           0x1
+#define  INTR_ASYNCH          0x2
+#define  INTR_HALTED          0x4
+
+typedef struct {
+    struct i386_general_regs    gen;
+    struct i386_special_regs    spc;
+    struct i386_segment_regs    seg;
+    /*
+     * MODE contains information on:
+     *  REPE prefix             2 bits  repe,repne
+     *  SEGMENT overrides       5 bits  normal,DS,SS,CS,ES
+     *  Delayed flag set        3 bits  (zero, signed, parity)
+     *  reserved                6 bits
+     *  interrupt #             8 bits  instruction raised interrupt
+     *  BIOS video segregs      4 bits  
+     *  Interrupt Pending       1 bits  
+     *  Extern interrupt        1 bits
+     *  Halted                  1 bits
+     */
+    u32                         mode;
+    volatile int                intr;   /* mask of pending interrupts */
+	int                         debug;
+#ifdef DEBUG
+	int                         check;
+    u16                         saved_ip;
+    u16                         saved_cs;
+    int                         enc_pos;
+    int                         enc_str_pos;
+    char                        decode_buf[32]; /* encoded byte stream  */
+    char                        decoded_buf[256]; /* disassembled strings */
+#endif
+    u8                          intno;
+    u8                          __pad[3];
+	} X86EMU_regs;
+
+/****************************************************************************
+REMARKS:
+Structure maintaining the emulator machine state.
+
+MEMBERS:
+mem_base		- Base real mode memory for the emulator
+abseg			- Base for the absegment
+mem_size		- Size of the real mode memory block for the emulator
+private			- private data pointer
+x86			- X86 registers
+****************************************************************************/
+typedef struct {
+	unsigned long	mem_base;
+	unsigned long	mem_size;
+	unsigned long	abseg;
+	void*        	private;
+	X86EMU_regs		x86;
+	} X86EMU_sysEnv;
+
+#pragma pack()
+
+/*----------------------------- Global Variables --------------------------*/
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+/* Global emulator machine state.
+ *
+ * We keep it global to avoid pointer dereferences in the code for speed.
+ */
+
+extern    X86EMU_sysEnv	_X86EMU_env;
+#define   M             _X86EMU_env
+		
+/*-------------------------- Function Prototypes --------------------------*/
+
+/* Function to log information at runtime */
+
+//void	printk(const char *fmt, ...);
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_REGS_H */
diff --git a/util/vgabios/x86emu/include/x86emu/types.h b/util/vgabios/x86emu/include/x86emu/types.h
new file mode 100755
index 0000000000..7cc97bb7c1
--- /dev/null
+++ b/util/vgabios/x86emu/include/x86emu/types.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for x86 emulator type definitions.
+*
+****************************************************************************/
+
+/* $XFree86: xc/extras/x86emu/include/x86emu/types.h,v 1.4 2000/09/26 15:56:44 tsi Exp $ */
+
+#ifndef __X86EMU_TYPES_H
+#define __X86EMU_TYPES_H
+
+#ifndef IN_MODULE
+#include <sys/types.h>
+#endif
+
+/*
+ * The following kludge is an attempt to work around typedef conflicts with
+ * <sys/types.h>.
+ */
+#define u8   x86emuu8
+#define u16  x86emuu16
+#define u32  x86emuu32
+#define u64  x86emuu64
+#define s8   x86emus8
+#define s16  x86emus16
+#define s32  x86emus32
+#define s64  x86emus64
+#define uint x86emuuint
+#define sint x86emusint
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+/* Currently only for Linux/32bit */
+#if defined(__GNUC__) && !defined(NO_LONG_LONG)
+#define __HAS_LONG_LONG__
+#endif
+
+typedef unsigned char 		u8;
+typedef unsigned short 		u16;
+typedef unsigned int 		u32;
+#ifdef __HAS_LONG_LONG__
+typedef unsigned long long 	u64;
+#endif
+
+typedef char 				s8;
+typedef short 				s16;
+typedef int 				s32;
+#ifdef __HAS_LONG_LONG__
+typedef long long 			s64;
+#endif
+
+typedef unsigned int			uint;
+typedef int 				sint;
+
+typedef u16 X86EMU_pioAddr;
+
+#endif	/* __X86EMU_TYPES_H */
diff --git a/util/vgabios/x86emu/src/x86emu/LICENSE b/util/vgabios/x86emu/src/x86emu/LICENSE
new file mode 100644
index 0000000000..a3ede4a87d
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/LICENSE
@@ -0,0 +1,17 @@
+                         License information
+                         -------------------
+
+The x86emu library is under a BSD style license, comaptible
+with the XFree86 and X licenses used by XFree86. The
+original x86emu libraries were under the GNU General Public
+License. Due to license incompatibilities between the GPL
+and the XFree86 license, the original authors of the code
+decided to allow a license change. If you have submitted
+code to the original x86emu project, and you don't agree
+with the license change, please contact us and let you
+know. Your code will be removed to comply with your wishes.
+
+If you have any questions about this, please send email to
+x86emu@linuxlabs.com or KendallB@scitechsoft.com for
+clarification.
+
diff --git a/util/vgabios/x86emu/src/x86emu/debug.c b/util/vgabios/x86emu/src/x86emu/debug.c
new file mode 100644
index 0000000000..af2b77a822
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/debug.c
@@ -0,0 +1,471 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file contains the code to handle debugging of the
+*				emulator.
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/src/x86emu/debug.c,v 1.4 2000/04/17 16:29:45 eich Exp $ */
+
+#include "x86emu/x86emui.h"
+#ifdef IN_MODULE
+#include "xf86_ansic.h"
+#else
+#include <stdarg.h>
+#include <stdlib.h>
+#endif
+
+/*----------------------------- Implementation ----------------------------*/
+
+#ifdef DEBUG
+
+static void print_encoded_bytes(u16 s, u16 o);
+static void print_decoded_instruction(void);
+static int parse_line(char *s, int *ps, int *n);
+
+/* should look something like debug's output. */
+void X86EMU_trace_regs(void)
+{
+	if (DEBUG_TRACE()) {
+		x86emu_dump_regs();
+	}
+	if (DEBUG_DECODE() && !DEBUG_DECODE_NOPRINT()) {
+		printk("%04x:%04x ", M.x86.saved_cs, M.x86.saved_ip);
+		print_encoded_bytes(M.x86.saved_cs, M.x86.saved_ip);
+		print_decoded_instruction();
+	}
+}
+
+void X86EMU_trace_xregs(void)
+{
+	if (DEBUG_TRACE()) {
+		x86emu_dump_xregs();
+	}
+}
+
+void x86emu_just_disassemble(void)
+{
+	/*
+	 * This routine called if the flag DEBUG_DISASSEMBLE is set kind
+	 * of a hack!
+	 */
+	printk("%04x:%04x ", M.x86.saved_cs, M.x86.saved_ip);
+	print_encoded_bytes(M.x86.saved_cs, M.x86.saved_ip);
+	print_decoded_instruction();
+}
+
+static void disassemble_forward(u16 seg, u16 off, int n)
+{
+	X86EMU_sysEnv tregs;
+	int i;
+	u8 op1;
+	/*
+	 * hack, hack, hack.  What we do is use the exact machinery set up
+	 * for execution, except that now there is an additional state
+	 * flag associated with the "execution", and we are using a copy
+	 * of the register struct.  All the major opcodes, once fully
+	 * decoded, have the following two steps: TRACE_REGS(r,m);
+	 * SINGLE_STEP(r,m); which disappear if DEBUG is not defined to
+	 * the preprocessor.  The TRACE_REGS macro expands to:
+	 *
+	 * if (debug&DEBUG_DISASSEMBLE) 
+	 *     {just_disassemble(); goto EndOfInstruction;}
+	 *     if (debug&DEBUG_TRACE) trace_regs(r,m);
+	 *
+	 * ......  and at the last line of the routine. 
+	 *
+	 * EndOfInstruction: end_instr();
+	 *
+	 * Up to the point where TRACE_REG is expanded, NO modifications
+	 * are done to any register EXCEPT the IP register, for fetch and
+	 * decoding purposes.
+	 *
+	 * This was done for an entirely different reason, but makes a
+	 * nice way to get the system to help debug codes.
+	 */
+	tregs = M;
+	tregs.x86.R_IP = off;
+	tregs.x86.R_CS = seg;
+
+	/* reset the decoding buffers */
+	tregs.x86.enc_str_pos = 0;
+	tregs.x86.enc_pos = 0;
+
+	/* turn on the "disassemble only, no execute" flag */
+	tregs.x86.debug |= DEBUG_DISASSEMBLE_F;
+
+	/* DUMP NEXT n instructions to screen in straight_line fashion */
+	/*
+	 * This looks like the regular instruction fetch stream, except
+	 * that when this occurs, each fetched opcode, upon seeing the
+	 * DEBUG_DISASSEMBLE flag set, exits immediately after decoding
+	 * the instruction.  XXX --- CHECK THAT MEM IS NOT AFFECTED!!!
+	 * Note the use of a copy of the register structure...
+	 */
+	for (i = 0; i < n; i++) {
+		op1 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+		(x86emu_optab[op1]) (op1);
+	}
+	/* end major hack mode. */
+}
+
+void x86emu_check_ip_access(void)
+{
+	/* NULL as of now */
+}
+
+void x86emu_check_sp_access(void)
+{
+}
+
+void x86emu_check_mem_access(u32 dummy)
+{
+	/*  check bounds, etc */
+}
+
+void x86emu_check_data_access(uint dummy1, uint dummy2)
+{
+	/*  check bounds, etc */
+}
+
+void x86emu_inc_decoded_inst_len(int x)
+{
+	M.x86.enc_pos += x;
+}
+
+void x86emu_decode_printf(char *x)
+{
+	sprintf(M.x86.decoded_buf + M.x86.enc_str_pos, "%s", x);
+	M.x86.enc_str_pos += strlen(x);
+}
+
+void x86emu_decode_printf2(char *x, int y)
+{
+	char temp[100];
+	sprintf(temp, x, y);
+	sprintf(M.x86.decoded_buf + M.x86.enc_str_pos, "%s", temp);
+	M.x86.enc_str_pos += strlen(temp);
+}
+
+void x86emu_end_instr(void)
+{
+	M.x86.enc_str_pos = 0;
+	M.x86.enc_pos = 0;
+}
+
+static void print_encoded_bytes(u16 s, u16 o)
+{
+	int i;
+	char buf1[64];
+	for (i = 0; i < M.x86.enc_pos; i++) {
+		sprintf(buf1 + 2 * i, "%02x", fetch_data_byte_abs(s, o + i));
+	}
+	printk("%-20s", buf1);
+}
+
+static void print_decoded_instruction(void)
+{
+	printk("%s", M.x86.decoded_buf);
+}
+
+void x86emu_print_int_vect(u16 iv)
+{
+	u16 seg, off;
+
+	if (iv > 256)
+		return;
+	seg = fetch_data_word_abs(0, iv * 4);
+	off = fetch_data_word_abs(0, iv * 4 + 2);
+	printk("%04x:%04x ", seg, off);
+}
+
+void X86EMU_dump_memory(u16 seg, u16 off, u32 amt)
+{
+	u32 start = off & 0xfffffff0;
+	u32 end = (off + 16) & 0xfffffff0;
+	u32 i;
+	u32 current;
+
+	current = start;
+	while (end <= off + amt) {
+		printk("%04x:%04x ", seg, start);
+		for (i = start; i < off; i++)
+			printk("   ");
+		for (; i < end; i++)
+			printk("%02x ", fetch_data_byte_abs(seg, i));
+		printk("\n");
+		start = end;
+		end = start + 16;
+	}
+}
+
+void x86emu_single_step(void)
+{
+	char s[1024];
+	int ps[10];
+	int ntok;
+	int cmd;
+	int done;
+	int segment;
+	int offset;
+	static int breakpoint;
+	static int noDecode = 1;
+
+	char *p;
+
+	if (DEBUG_BREAK()) {
+		if (M.x86.saved_ip != breakpoint) {
+			return;
+		} else {
+			M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
+			M.x86.debug |= DEBUG_TRACE_F;
+			M.x86.debug &= ~DEBUG_BREAK_F;
+			print_decoded_instruction();
+			X86EMU_trace_regs();
+		}
+	}
+	done = 0;
+	offset = M.x86.saved_ip;
+	while (!done) {
+		printk("%x:%x -", M.x86.saved_cs, offset);
+		p = fgets(s, 1023, stdin);
+		cmd = parse_line(s, ps, &ntok);
+		switch (cmd) {
+		case 'u':
+			disassemble_forward(M.x86.saved_cs, (u16) offset, 10);
+			break;
+		case 'd':
+			if (ntok == 2) {
+				segment = M.x86.saved_cs;
+				offset = ps[1];
+				X86EMU_dump_memory(segment, (u16) offset, 16);
+				offset += 16;
+			} else if (ntok == 3) {
+				segment = ps[1];
+				offset = ps[2];
+				X86EMU_dump_memory(segment, (u16) offset, 16);
+				offset += 16;
+			} else {
+				segment = M.x86.saved_cs;
+				X86EMU_dump_memory(segment, (u16) offset, 16);
+				offset += 16;
+			}
+			break;
+		case 'c':
+			M.x86.debug ^= DEBUG_TRACECALL_F;
+			break;
+		case 's':
+			M.x86.debug ^= DEBUG_SVC_F | DEBUG_SYS_F | DEBUG_SYSINT_F;
+			break;
+		case 'r':
+			X86EMU_trace_regs();
+			break;
+		case 'x':
+			X86EMU_trace_xregs();
+			break;
+		case 'g':
+			if (ntok == 2) {
+				breakpoint = ps[1];
+				if (noDecode) {
+					M.x86.debug |= DEBUG_DECODE_NOPRINT_F;
+				} else {
+					M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
+				}
+				M.x86.debug &= ~DEBUG_TRACE_F;
+				M.x86.debug |= DEBUG_BREAK_F;
+				done = 1;
+			}
+			break;
+		case 'q':
+			exit(1);
+		case 'P':
+			noDecode = (noDecode) ? 0 : 1;
+			printk("Toggled decoding to %s\n", (noDecode) ? "FALSE" : "TRUE");
+			break;
+		case 't':
+		case 0:
+			done = 1;
+			break;
+		}
+	}
+}
+
+int X86EMU_trace_on(void)
+{
+	return M.x86.debug |= /*DEBUG_STEP_F | */ DEBUG_DECODE_F | DEBUG_TRACE_F;
+}
+
+int X86EMU_trace_off(void)
+{
+	return M.x86.debug &= ~(DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F);
+}
+
+int X86EMU_set_debug(int debug)
+{
+	return M.x86.debug = debug;
+}
+
+static int parse_line(char *s, int *ps, int *n)
+{
+	int cmd;
+
+	*n = 0;
+	while (*s == ' ' || *s == '\t')
+		s++;
+	ps[*n] = *s;
+	switch (*s) {
+	case '\n':
+		*n += 1;
+		return 0;
+	default:
+		cmd = *s;
+		*n += 1;
+	}
+
+	while (1) {
+		while (*s != ' ' && *s != '\t' && *s != '\n')
+			s++;
+
+		if (*s == '\n')
+			return cmd;
+
+		while (*s == ' ' || *s == '\t')
+			s++;
+
+		sscanf(s, "%x", &ps[*n]);
+		*n += 1;
+	}
+}
+
+#endif				/* DEBUG */
+
+void x86emu_dump_regs(void)
+{
+	printk("\tAX=%04x  ", M.x86.R_AX);
+	printk("BX=%04x  ", M.x86.R_BX);
+	printk("CX=%04x  ", M.x86.R_CX);
+	printk("DX=%04x  ", M.x86.R_DX);
+	printk("SP=%04x  ", M.x86.R_SP);
+	printk("BP=%04x  ", M.x86.R_BP);
+	printk("SI=%04x  ", M.x86.R_SI);
+	printk("DI=%04x\n", M.x86.R_DI);
+	printk("\tDS=%04x  ", M.x86.R_DS);
+	printk("ES=%04x  ", M.x86.R_ES);
+	printk("SS=%04x  ", M.x86.R_SS);
+	printk("CS=%04x  ", M.x86.R_CS);
+	printk("IP=%04x   ", M.x86.R_IP);
+	if (ACCESS_FLAG(F_OF))
+		printk("OV ");	/* CHECKED... */
+	else
+		printk("NV ");
+	if (ACCESS_FLAG(F_DF))
+		printk("DN ");
+	else
+		printk("UP ");
+	if (ACCESS_FLAG(F_IF))
+		printk("EI ");
+	else
+		printk("DI ");
+	if (ACCESS_FLAG(F_SF))
+		printk("NG ");
+	else
+		printk("PL ");
+	if (ACCESS_FLAG(F_ZF))
+		printk("ZR ");
+	else
+		printk("NZ ");
+	if (ACCESS_FLAG(F_AF))
+		printk("AC ");
+	else
+		printk("NA ");
+	if (ACCESS_FLAG(F_PF))
+		printk("PE ");
+	else
+		printk("PO ");
+	if (ACCESS_FLAG(F_CF))
+		printk("CY ");
+	else
+		printk("NC ");
+	printk("\n");
+}
+
+void x86emu_dump_xregs(void)
+{
+	printk("\tEAX=%08x  ", M.x86.R_EAX);
+	printk("EBX=%08x  ", M.x86.R_EBX);
+	printk("ECX=%08x  ", M.x86.R_ECX);
+	printk("EDX=%08x  \n", M.x86.R_EDX);
+	printk("\tESP=%08x  ", M.x86.R_ESP);
+	printk("EBP=%08x  ", M.x86.R_EBP);
+	printk("ESI=%08x  ", M.x86.R_ESI);
+	printk("EDI=%08x\n", M.x86.R_EDI);
+	printk("\tDS=%04x  ", M.x86.R_DS);
+	printk("ES=%04x  ", M.x86.R_ES);
+	printk("SS=%04x  ", M.x86.R_SS);
+	printk("CS=%04x  ", M.x86.R_CS);
+	printk("EIP=%08x\n\t", M.x86.R_EIP);
+	if (ACCESS_FLAG(F_OF))
+		printk("OV ");	/* CHECKED... */
+	else
+		printk("NV ");
+	if (ACCESS_FLAG(F_DF))
+		printk("DN ");
+	else
+		printk("UP ");
+	if (ACCESS_FLAG(F_IF))
+		printk("EI ");
+	else
+		printk("DI ");
+	if (ACCESS_FLAG(F_SF))
+		printk("NG ");
+	else
+		printk("PL ");
+	if (ACCESS_FLAG(F_ZF))
+		printk("ZR ");
+	else
+		printk("NZ ");
+	if (ACCESS_FLAG(F_AF))
+		printk("AC ");
+	else
+		printk("NA ");
+	if (ACCESS_FLAG(F_PF))
+		printk("PE ");
+	else
+		printk("PO ");
+	if (ACCESS_FLAG(F_CF))
+		printk("CY ");
+	else
+		printk("NC ");
+	printk("\n");
+}
diff --git a/util/vgabios/x86emu/src/x86emu/decode.c b/util/vgabios/x86emu/src/x86emu/decode.c
new file mode 100644
index 0000000000..3844d985f9
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/decode.c
@@ -0,0 +1,832 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file includes subroutines which are related to
+*				instruction decoding and accessess of immediate data via IP.  etc.
+*
+****************************************************************************/
+
+/* $XFree86: xc/extras/x86emu/src/x86emu/decode.c,v 1.9 2001/01/06 20:19:03 tsi Exp $ */
+
+#include "x86emu/x86emui.h"
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+REMARKS:
+Handles any pending asychronous interrupts.
+****************************************************************************/
+static void x86emu_intr_handle(void)
+{
+	u8 intno;
+
+	if (M.x86.intr & INTR_SYNCH) {
+		intno = M.x86.intno;
+		if (_X86EMU_intrTab[intno]) {
+			(*_X86EMU_intrTab[intno]) (intno);
+		} else {
+			push_word((u16) M.x86.R_FLG);
+			CLEAR_FLAG(F_IF);
+			CLEAR_FLAG(F_TF);
+			push_word(M.x86.R_CS);
+			M.x86.R_CS = mem_access_word(intno * 4 + 2);
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = mem_access_word(intno * 4);
+			M.x86.intr = 0;
+		}
+	}
+}
+
+/****************************************************************************
+PARAMETERS:
+intrnum - Interrupt number to raise
+
+REMARKS:
+Raise the specified interrupt to be handled before the execution of the
+next instruction.
+****************************************************************************/
+void x86emu_intr_raise(u8 intrnum)
+{
+	M.x86.intno = intrnum;
+	M.x86.intr |= INTR_SYNCH;
+}
+
+/****************************************************************************
+REMARKS:
+Main execution loop for the emulator. We return from here when the system
+halts, which is normally caused by a stack fault when we return from the
+original real mode call.
+****************************************************************************/
+void X86EMU_exec(void)
+{
+	u8 op1;
+
+	M.x86.intr = 0;
+	DB(x86emu_end_instr();
+	    )
+
+	    for (;;) {
+		DB(if (CHECK_IP_FETCH())
+		   x86emu_check_ip_access();)
+			/* If debugging, save the IP and CS values. */
+			SAVE_IP_CS(M.x86.R_CS, M.x86.R_IP);
+		INC_DECODED_INST_LEN(1);
+		if (M.x86.intr) {
+			if (M.x86.intr & INTR_HALTED) {
+				DB(printk("halted\n"); X86EMU_trace_regs();
+				    )
+				    return;
+			}
+			if (((M.x86.intr & INTR_SYNCH)
+			     && (M.x86.intno == 0 || M.x86.intno == 2))
+			    || !ACCESS_FLAG(F_IF)) {
+				x86emu_intr_handle();
+			}
+		}
+		op1 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+		(*x86emu_optab[op1]) (op1);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Halts the system by setting the halted system flag.
+****************************************************************************/
+void X86EMU_halt_sys(void)
+{
+	M.x86.intr |= INTR_HALTED;
+}
+
+/****************************************************************************
+PARAMETERS:
+mod		- Mod value from decoded byte
+regh	- Reg h value from decoded byte
+regl	- Reg l value from decoded byte
+
+REMARKS:
+Raise the specified interrupt to be handled before the execution of the
+next instruction.
+
+NOTE: Do not inline this function, as (*sys_rdb) is already inline!
+****************************************************************************/
+void fetch_decode_modrm(int *mod, int *regh, int *regl)
+{
+	int fetched;
+
+	DB(if (CHECK_IP_FETCH())
+	   x86emu_check_ip_access();)
+		fetched = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+	INC_DECODED_INST_LEN(1);
+	*mod = (fetched >> 6) & 0x03;
+	*regh = (fetched >> 3) & 0x07;
+	*regl = (fetched >> 0) & 0x07;
+}
+
+/****************************************************************************
+RETURNS:
+Immediate byte value read from instruction queue
+
+REMARKS:
+This function returns the immediate byte from the instruction queue, and
+moves the instruction pointer to the next value.
+
+NOTE: Do not inline this function, as (*sys_rdb) is already inline!
+****************************************************************************/
+u8 fetch_byte_imm(void)
+{
+	u8 fetched;
+
+	DB(if (CHECK_IP_FETCH())
+	   x86emu_check_ip_access();)
+		fetched = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+	INC_DECODED_INST_LEN(1);
+	return fetched;
+}
+
+/****************************************************************************
+RETURNS:
+Immediate word value read from instruction queue
+
+REMARKS:
+This function returns the immediate byte from the instruction queue, and
+moves the instruction pointer to the next value.
+
+NOTE: Do not inline this function, as (*sys_rdw) is already inline!
+****************************************************************************/
+u16 fetch_word_imm(void)
+{
+	u16 fetched;
+
+	DB(if (CHECK_IP_FETCH())
+	   x86emu_check_ip_access();)
+		fetched = (*sys_rdw) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP));
+	M.x86.R_IP += 2;
+	INC_DECODED_INST_LEN(2);
+	return fetched;
+}
+
+/****************************************************************************
+RETURNS:
+Immediate lone value read from instruction queue
+
+REMARKS:
+This function returns the immediate byte from the instruction queue, and
+moves the instruction pointer to the next value.
+
+NOTE: Do not inline this function, as (*sys_rdw) is already inline!
+****************************************************************************/
+u32 fetch_long_imm(void)
+{
+	u32 fetched;
+
+	DB(if (CHECK_IP_FETCH())
+	   x86emu_check_ip_access();)
+		fetched = (*sys_rdl) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP));
+	M.x86.R_IP += 4;
+	INC_DECODED_INST_LEN(4);
+	return fetched;
+}
+
+/****************************************************************************
+RETURNS:
+Value of the default data segment
+
+REMARKS:
+Inline function that returns the default data segment for the current
+instruction.
+
+On the x86 processor, the default segment is not always DS if there is
+no segment override. Address modes such as -3[BP] or 10[BP+SI] all refer to
+addresses relative to SS (ie: on the stack). So, at the minimum, all
+decodings of addressing modes would have to set/clear a bit describing
+whether the access is relative to DS or SS.  That is the function of the
+cpu-state-varible M.x86.mode. There are several potential states:
+
+	repe prefix seen  (handled elsewhere)
+	repne prefix seen  (ditto)
+
+	cs segment override
+	ds segment override
+	es segment override
+	fs segment override
+	gs segment override
+	ss segment override
+
+	ds/ss select (in absense of override)
+
+Each of the above 7 items are handled with a bit in the mode field.
+****************************************************************************/
+_INLINE u32 get_data_segment(void)
+{
+#define	GET_SEGMENT(segment)
+	switch (M.x86.mode & SYSMODE_SEGMASK) {
+	case 0:		/* default case: use ds register */
+	case SYSMODE_SEGOVR_DS:
+	case SYSMODE_SEGOVR_DS | SYSMODE_SEG_DS_SS:
+		return M.x86.R_DS;
+	case SYSMODE_SEG_DS_SS:	/* non-overridden, use ss register */
+		return M.x86.R_SS;
+	case SYSMODE_SEGOVR_CS:
+	case SYSMODE_SEGOVR_CS | SYSMODE_SEG_DS_SS:
+		return M.x86.R_CS;
+	case SYSMODE_SEGOVR_ES:
+	case SYSMODE_SEGOVR_ES | SYSMODE_SEG_DS_SS:
+		return M.x86.R_ES;
+	case SYSMODE_SEGOVR_FS:
+	case SYSMODE_SEGOVR_FS | SYSMODE_SEG_DS_SS:
+		return M.x86.R_FS;
+	case SYSMODE_SEGOVR_GS:
+	case SYSMODE_SEGOVR_GS | SYSMODE_SEG_DS_SS:
+		return M.x86.R_GS;
+	case SYSMODE_SEGOVR_SS:
+	case SYSMODE_SEGOVR_SS | SYSMODE_SEG_DS_SS:
+		return M.x86.R_SS;
+	default:
+#ifdef	DEBUG
+		printk("error: should not happen:  multiple overrides.\n");
+#endif
+		HALT_SYS();
+		return 0;
+	}
+}
+
+/****************************************************************************
+PARAMETERS:
+offset	- Offset to load data from
+
+RETURNS:
+Byte value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u8 fetch_data_byte(uint offset)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+	return (*sys_rdb) ((get_data_segment() << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset	- Offset to load data from
+
+RETURNS:
+Word value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u16 fetch_data_word(uint offset)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+	return (*sys_rdw) ((get_data_segment() << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset	- Offset to load data from
+
+RETURNS:
+Long value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u32 fetch_data_long(uint offset)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+	return (*sys_rdl) ((get_data_segment() << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment	- Segment to load data from
+offset	- Offset to load data from
+
+RETURNS:
+Byte value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u8 fetch_data_byte_abs(uint segment, uint offset)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access(segment, offset);
+#endif
+	return (*sys_rdb) (((u32) segment << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment	- Segment to load data from
+offset	- Offset to load data from
+
+RETURNS:
+Word value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u16 fetch_data_word_abs(uint segment, uint offset)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access(segment, offset);
+#endif
+	return (*sys_rdw) (((u32) segment << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment	- Segment to load data from
+offset	- Offset to load data from
+
+RETURNS:
+Long value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u32 fetch_data_long_abs(uint segment, uint offset)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access(segment, offset);
+#endif
+	return (*sys_rdl) (((u32) segment << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset	- Offset to store data at
+val		- Value to store
+
+REMARKS:
+Writes a word value to an segmented memory location. The segment used is
+the current 'default' segment, which may have been overridden.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void store_data_byte(uint offset, u8 val)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+	(*sys_wrb) ((get_data_segment() << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset	- Offset to store data at
+val		- Value to store
+
+REMARKS:
+Writes a word value to an segmented memory location. The segment used is
+the current 'default' segment, which may have been overridden.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void store_data_word(uint offset, u16 val)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+	(*sys_wrw) ((get_data_segment() << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset	- Offset to store data at
+val		- Value to store
+
+REMARKS:
+Writes a long value to an segmented memory location. The segment used is
+the current 'default' segment, which may have been overridden.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void store_data_long(uint offset, u32 val)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+	(*sys_wrl) ((get_data_segment() << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment	- Segment to store data at
+offset	- Offset to store data at
+val		- Value to store
+
+REMARKS:
+Writes a byte value to an absolute memory location.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void store_data_byte_abs(uint segment, uint offset, u8 val)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access(segment, offset);
+#endif
+	(*sys_wrb) (((u32) segment << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment	- Segment to store data at
+offset	- Offset to store data at
+val		- Value to store
+
+REMARKS:
+Writes a word value to an absolute memory location.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void store_data_word_abs(uint segment, uint offset, u16 val)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access(segment, offset);
+#endif
+	(*sys_wrw) (((u32) segment << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment	- Segment to store data at
+offset	- Offset to store data at
+val		- Value to store
+
+REMARKS:
+Writes a long value to an absolute memory location.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void store_data_long_abs(uint segment, uint offset, u32 val)
+{
+#ifdef DEBUG
+	if (CHECK_DATA_ACCESS())
+		x86emu_check_data_access(segment, offset);
+#endif
+	(*sys_wrl) (((u32) segment << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+reg	- Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for byte operands. Also enables the decoding of instructions.
+****************************************************************************/
+u8 *decode_rm_byte_register(int reg)
+{
+	switch (reg) {
+	case 0:
+		DECODE_PRINTF("AL");
+		return &M.x86.R_AL;
+	case 1:
+		DECODE_PRINTF("CL");
+		return &M.x86.R_CL;
+	case 2:
+		DECODE_PRINTF("DL");
+		return &M.x86.R_DL;
+	case 3:
+		DECODE_PRINTF("BL");
+		return &M.x86.R_BL;
+	case 4:
+		DECODE_PRINTF("AH");
+		return &M.x86.R_AH;
+	case 5:
+		DECODE_PRINTF("CH");
+		return &M.x86.R_CH;
+	case 6:
+		DECODE_PRINTF("DH");
+		return &M.x86.R_DH;
+	case 7:
+		DECODE_PRINTF("BH");
+		return &M.x86.R_BH;
+	}
+	HALT_SYS();
+	return NULL;		/* NOT REACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+reg	- Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for word operands.  Also enables the decoding of instructions.
+****************************************************************************/
+u16 *decode_rm_word_register(int reg)
+{
+	switch (reg) {
+	case 0:
+		DECODE_PRINTF("AX");
+		return &M.x86.R_AX;
+	case 1:
+		DECODE_PRINTF("CX");
+		return &M.x86.R_CX;
+	case 2:
+		DECODE_PRINTF("DX");
+		return &M.x86.R_DX;
+	case 3:
+		DECODE_PRINTF("BX");
+		return &M.x86.R_BX;
+	case 4:
+		DECODE_PRINTF("SP");
+		return &M.x86.R_SP;
+	case 5:
+		DECODE_PRINTF("BP");
+		return &M.x86.R_BP;
+	case 6:
+		DECODE_PRINTF("SI");
+		return &M.x86.R_SI;
+	case 7:
+		DECODE_PRINTF("DI");
+		return &M.x86.R_DI;
+	}
+	HALT_SYS();
+	return NULL;		/* NOTREACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+reg	- Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for dword operands.  Also enables the decoding of instructions.
+****************************************************************************/
+u32 *decode_rm_long_register(int reg)
+{
+	switch (reg) {
+	case 0:
+		DECODE_PRINTF("EAX");
+		return &M.x86.R_EAX;
+	case 1:
+		DECODE_PRINTF("ECX");
+		return &M.x86.R_ECX;
+	case 2:
+		DECODE_PRINTF("EDX");
+		return &M.x86.R_EDX;
+	case 3:
+		DECODE_PRINTF("EBX");
+		return &M.x86.R_EBX;
+	case 4:
+		DECODE_PRINTF("ESP");
+		return &M.x86.R_ESP;
+	case 5:
+		DECODE_PRINTF("EBP");
+		return &M.x86.R_EBP;
+	case 6:
+		DECODE_PRINTF("ESI");
+		return &M.x86.R_ESI;
+	case 7:
+		DECODE_PRINTF("EDI");
+		return &M.x86.R_EDI;
+	}
+	HALT_SYS();
+	return NULL;		/* NOTREACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+reg	- Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for word operands, modified from above for the weirdo
+special case of segreg operands.  Also enables the decoding of instructions.
+****************************************************************************/
+u16 *decode_rm_seg_register(int reg)
+{
+	switch (reg) {
+	case 0:
+		DECODE_PRINTF("ES");
+		return &M.x86.R_ES;
+	case 1:
+		DECODE_PRINTF("CS");
+		return &M.x86.R_CS;
+	case 2:
+		DECODE_PRINTF("SS");
+		return &M.x86.R_SS;
+	case 3:
+		DECODE_PRINTF("DS");
+		return &M.x86.R_DS;
+	case 4:
+	case 5:
+	case 6:
+	case 7:
+		DECODE_PRINTF("ILLEGAL SEGREG");
+		break;
+	}
+	HALT_SYS();
+	return NULL;		/* NOT REACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+rm	- RM value to decode
+
+RETURNS:
+Offset in memory for the address decoding
+
+REMARKS:
+Return the offset given by mod=00 addressing.  Also enables the
+decoding of instructions.
+
+NOTE: 	The code which specifies the corresponding segment (ds vs ss)
+		below in the case of [BP+..].  The assumption here is that at the
+		point that this subroutine is called, the bit corresponding to
+		SYSMODE_SEG_DS_SS will be zero.  After every instruction
+		except the segment override instructions, this bit (as well
+		as any bits indicating segment overrides) will be clear.  So
+		if a SS access is needed, set this bit.  Otherwise, DS access
+		occurs (unless any of the segment override bits are set).
+****************************************************************************/
+unsigned decode_rm00_address(int rm)
+{
+	unsigned offset;
+
+	switch (rm) {
+	case 0:
+		DECODE_PRINTF("[BX+SI]");
+		return M.x86.R_BX + M.x86.R_SI;
+	case 1:
+		DECODE_PRINTF("[BX+DI]");
+		return M.x86.R_BX + M.x86.R_DI;
+	case 2:
+		DECODE_PRINTF("[BP+SI]");
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + M.x86.R_SI;
+	case 3:
+		DECODE_PRINTF("[BP+DI]");
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + M.x86.R_DI;
+	case 4:
+		DECODE_PRINTF("[SI]");
+		return M.x86.R_SI;
+	case 5:
+		DECODE_PRINTF("[DI]");
+		return M.x86.R_DI;
+	case 6:
+		offset = fetch_word_imm();
+		DECODE_PRINTF2("[%04x]", offset);
+		return offset;
+	case 7:
+		DECODE_PRINTF("[BX]");
+		return M.x86.R_BX;
+	}
+	HALT_SYS();
+	return 0;
+}
+
+/****************************************************************************
+PARAMETERS:
+rm	- RM value to decode
+
+RETURNS:
+Offset in memory for the address decoding
+
+REMARKS:
+Return the offset given by mod=01 addressing.  Also enables the
+decoding of instructions.
+****************************************************************************/
+unsigned decode_rm01_address(int rm)
+{
+	int displacement = (s8) fetch_byte_imm();
+	switch (rm) {
+	case 0:
+		DECODE_PRINTF2("%d[BX+SI]", displacement);
+		return M.x86.R_BX + M.x86.R_SI + displacement;
+	case 1:
+		DECODE_PRINTF2("%d[BX+DI]", displacement);
+		return M.x86.R_BX + M.x86.R_DI + displacement;
+	case 2:
+		DECODE_PRINTF2("%d[BP+SI]", displacement);
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + M.x86.R_SI + displacement;
+	case 3:
+		DECODE_PRINTF2("%d[BP+DI]", displacement);
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + M.x86.R_DI + displacement;
+	case 4:
+		DECODE_PRINTF2("%d[SI]", displacement);
+		return M.x86.R_SI + displacement;
+	case 5:
+		DECODE_PRINTF2("%d[DI]", displacement);
+		return M.x86.R_DI + displacement;
+	case 6:
+		DECODE_PRINTF2("%d[BP]", displacement);
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + displacement;
+	case 7:
+		DECODE_PRINTF2("%d[BX]", displacement);
+		return M.x86.R_BX + displacement;
+	}
+	HALT_SYS();
+	return 0;		/* SHOULD NOT HAPPEN */
+}
+
+/****************************************************************************
+PARAMETERS:
+rm	- RM value to decode
+
+RETURNS:
+Offset in memory for the address decoding
+
+REMARKS:
+Return the offset given by mod=10 addressing.  Also enables the
+decoding of instructions.
+****************************************************************************/
+unsigned decode_rm10_address(int rm)
+{
+	unsigned displacement = (u16) fetch_word_imm();
+	switch (rm) {
+	case 0:
+		DECODE_PRINTF2("%04x[BX+SI]", displacement);
+		return M.x86.R_BX + M.x86.R_SI + displacement;
+	case 1:
+		DECODE_PRINTF2("%04x[BX+DI]", displacement);
+		return M.x86.R_BX + M.x86.R_DI + displacement;
+	case 2:
+		DECODE_PRINTF2("%04x[BP+SI]", displacement);
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + M.x86.R_SI + displacement;
+	case 3:
+		DECODE_PRINTF2("%04x[BP+DI]", displacement);
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + M.x86.R_DI + displacement;
+	case 4:
+		DECODE_PRINTF2("%04x[SI]", displacement);
+		return M.x86.R_SI + displacement;
+	case 5:
+		DECODE_PRINTF2("%04x[DI]", displacement);
+		return M.x86.R_DI + displacement;
+	case 6:
+		DECODE_PRINTF2("%04x[BP]", displacement);
+		M.x86.mode |= SYSMODE_SEG_DS_SS;
+		return M.x86.R_BP + displacement;
+	case 7:
+		DECODE_PRINTF2("%04x[BX]", displacement);
+		return M.x86.R_BX + displacement;
+	}
+	HALT_SYS();
+	return 0;
+	/*NOTREACHED */
+}
diff --git a/util/vgabios/x86emu/src/x86emu/fpu.c b/util/vgabios/x86emu/src/x86emu/fpu.c
new file mode 100644
index 0000000000..40e47aaed2
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/fpu.c
@@ -0,0 +1,944 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file contains the code to implement the decoding and
+*               emulation of the FPU instructions.
+*
+****************************************************************************/
+
+#include "x86emu/x86emui.h"
+
+/*----------------------------- Implementation ----------------------------*/
+
+/* opcode=0xd8 */
+void x86emuOp_esc_coprocess_d8(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("ESC D8\n");
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static char *x86emu_fpu_op_d9_tab[] = {
+	"FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ",
+	"FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t",
+
+	"FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ",
+	"FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t",
+
+	"FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ",
+	"FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t",
+};
+
+static char *x86emu_fpu_op_d9_tab1[] = {
+	"FLD\t", "FLD\t", "FLD\t", "FLD\t",
+	"FLD\t", "FLD\t", "FLD\t", "FLD\t",
+
+	"FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t",
+	"FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t",
+
+	"FNOP", "ESC_D9", "ESC_D9", "ESC_D9",
+	"ESC_D9", "ESC_D9", "ESC_D9", "ESC_D9",
+
+	"FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t",
+	"FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t",
+
+	"FCHS", "FABS", "ESC_D9", "ESC_D9",
+	"FTST", "FXAM", "ESC_D9", "ESC_D9",
+
+	"FLD1", "FLDL2T", "FLDL2E", "FLDPI",
+	"FLDLG2", "FLDLN2", "FLDZ", "ESC_D9",
+
+	"F2XM1", "FYL2X", "FPTAN", "FPATAN",
+	"FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP",
+
+	"FPREM", "FYL2XP1", "FSQRT", "ESC_D9",
+	"FRNDINT", "FSCALE", "ESC_D9", "ESC_D9",
+};
+
+#endif				/* DEBUG */
+
+/* opcode=0xd9 */
+void x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 stkelem;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (mod != 3) {
+		DECODE_PRINTINSTR32(x86emu_fpu_op_d9_tab, mod, rh, rl);
+	} else {
+		DECODE_PRINTF(x86emu_fpu_op_d9_tab1[(rh << 3) + rl]);
+	}
+#endif
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 3:		/* register to register */
+		stkelem = (u8) rl;
+		if (rh < 4) {
+			DECODE_PRINTF2("ST(%d)\n", stkelem);
+		} else {
+			DECODE_PRINTF("\n");
+		}
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	/* execute */
+	switch (mod) {
+	case 3:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_R_fld(X86EMU_FPU_STKTOP, stkelem);
+			break;
+		case 1:
+			x86emu_fpu_R_fxch(X86EMU_FPU_STKTOP, stkelem);
+			break;
+		case 2:
+			switch (rl) {
+			case 0:
+				x86emu_fpu_R_nop();
+				break;
+			default:
+				x86emu_fpu_illegal();
+				break;
+			}
+		case 3:
+			x86emu_fpu_R_fstp(X86EMU_FPU_STKTOP, stkelem);
+			break;
+		case 4:
+			switch (rl) {
+			case 0:
+				x86emu_fpu_R_fchs(X86EMU_FPU_STKTOP);
+				break;
+			case 1:
+				x86emu_fpu_R_fabs(X86EMU_FPU_STKTOP);
+				break;
+			case 4:
+				x86emu_fpu_R_ftst(X86EMU_FPU_STKTOP);
+				break;
+			case 5:
+				x86emu_fpu_R_fxam(X86EMU_FPU_STKTOP);
+				break;
+			default:
+				/* 2,3,6,7 */
+				x86emu_fpu_illegal();
+				break;
+			}
+			break;
+
+		case 5:
+			switch (rl) {
+			case 0:
+				x86emu_fpu_R_fld1(X86EMU_FPU_STKTOP);
+				break;
+			case 1:
+				x86emu_fpu_R_fldl2t(X86EMU_FPU_STKTOP);
+				break;
+			case 2:
+				x86emu_fpu_R_fldl2e(X86EMU_FPU_STKTOP);
+				break;
+			case 3:
+				x86emu_fpu_R_fldpi(X86EMU_FPU_STKTOP);
+				break;
+			case 4:
+				x86emu_fpu_R_fldlg2(X86EMU_FPU_STKTOP);
+				break;
+			case 5:
+				x86emu_fpu_R_fldln2(X86EMU_FPU_STKTOP);
+				break;
+			case 6:
+				x86emu_fpu_R_fldz(X86EMU_FPU_STKTOP);
+				break;
+			default:
+				/* 7 */
+				x86emu_fpu_illegal();
+				break;
+			}
+			break;
+
+		case 6:
+			switch (rl) {
+			case 0:
+				x86emu_fpu_R_f2xm1(X86EMU_FPU_STKTOP);
+				break;
+			case 1:
+				x86emu_fpu_R_fyl2x(X86EMU_FPU_STKTOP);
+				break;
+			case 2:
+				x86emu_fpu_R_fptan(X86EMU_FPU_STKTOP);
+				break;
+			case 3:
+				x86emu_fpu_R_fpatan(X86EMU_FPU_STKTOP);
+				break;
+			case 4:
+				x86emu_fpu_R_fxtract(X86EMU_FPU_STKTOP);
+				break;
+			case 5:
+				x86emu_fpu_illegal();
+				break;
+			case 6:
+				x86emu_fpu_R_decstp();
+				break;
+			case 7:
+				x86emu_fpu_R_incstp();
+				break;
+			}
+			break;
+
+		case 7:
+			switch (rl) {
+			case 0:
+				x86emu_fpu_R_fprem(X86EMU_FPU_STKTOP);
+				break;
+			case 1:
+				x86emu_fpu_R_fyl2xp1(X86EMU_FPU_STKTOP);
+				break;
+			case 2:
+				x86emu_fpu_R_fsqrt(X86EMU_FPU_STKTOP);
+				break;
+			case 3:
+				x86emu_fpu_illegal();
+				break;
+			case 4:
+				x86emu_fpu_R_frndint(X86EMU_FPU_STKTOP);
+				break;
+			case 5:
+				x86emu_fpu_R_fscale(X86EMU_FPU_STKTOP);
+				break;
+			case 6:
+			case 7:
+			default:
+				x86emu_fpu_illegal();
+				break;
+			}
+			break;
+
+		default:
+			switch (rh) {
+			case 0:
+				x86emu_fpu_M_fld(X86EMU_FPU_FLOAT, destoffset);
+				break;
+			case 1:
+				x86emu_fpu_illegal();
+				break;
+			case 2:
+				x86emu_fpu_M_fst(X86EMU_FPU_FLOAT, destoffset);
+				break;
+			case 3:
+				x86emu_fpu_M_fstp(X86EMU_FPU_FLOAT, destoffset);
+				break;
+			case 4:
+				x86emu_fpu_M_fldenv(X86EMU_FPU_WORD, destoffset);
+				break;
+			case 5:
+				x86emu_fpu_M_fldcw(X86EMU_FPU_WORD, destoffset);
+				break;
+			case 6:
+				x86emu_fpu_M_fstenv(X86EMU_FPU_WORD, destoffset);
+				break;
+			case 7:
+				x86emu_fpu_M_fstcw(X86EMU_FPU_WORD, destoffset);
+				break;
+			}
+		}
+	}
+#endif				/* X86EMU_FPU_PRESENT */
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+char *x86emu_fpu_op_da_tab[] = {
+	"FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ",
+	"FICOMP\tDWORD PTR ",
+	"FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ",
+	"FIDIVR\tDWORD PTR ",
+
+	"FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ",
+	"FICOMP\tDWORD PTR ",
+	"FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ",
+	"FIDIVR\tDWORD PTR ",
+
+	"FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ",
+	"FICOMP\tDWORD PTR ",
+	"FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ",
+	"FIDIVR\tDWORD PTR ",
+
+	"ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ",
+	"ESC_DA     ", "ESC_DA ", "ESC_DA   ", "ESC_DA ",
+};
+
+#endif				/* DEBUG */
+
+/* opcode=0xda */
+void x86emuOp_esc_coprocess_da(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 stkelem;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	DECODE_PRINTINSTR32(x86emu_fpu_op_da_tab, mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 3:		/* register to register */
+		stkelem = (u8) rl;
+		DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	switch (mod) {
+	case 3:
+		x86emu_fpu_illegal();
+		break;
+	default:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_M_iadd(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 1:
+			x86emu_fpu_M_imul(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 2:
+			x86emu_fpu_M_icom(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 3:
+			x86emu_fpu_M_icomp(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 4:
+			x86emu_fpu_M_isub(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 5:
+			x86emu_fpu_M_isubr(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 6:
+			x86emu_fpu_M_idiv(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 7:
+			x86emu_fpu_M_idivr(X86EMU_FPU_SHORT, destoffset);
+			break;
+		}
+	}
+#endif
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+char *x86emu_fpu_op_db_tab[] = {
+	"FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ",
+	"ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ",
+
+	"FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ",
+	"ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ",
+
+	"FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ",
+	"ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ",
+};
+
+#endif				/* DEBUG */
+
+/* opcode=0xdb */
+void x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (mod != 3) {
+		DECODE_PRINTINSTR32(x86emu_fpu_op_db_tab, mod, rh, rl);
+	} else if (rh == 4) {	/* === 11 10 0 nnn */
+		switch (rl) {
+		case 0:
+			DECODE_PRINTF("FENI\n");
+			break;
+		case 1:
+			DECODE_PRINTF("FDISI\n");
+			break;
+		case 2:
+			DECODE_PRINTF("FCLEX\n");
+			break;
+		case 3:
+			DECODE_PRINTF("FINIT\n");
+			break;
+		}
+	} else {
+		DECODE_PRINTF2("ESC_DB %0x\n", (mod << 6) + (rh << 3) + (rl));
+	}
+#endif				/* DEBUG */
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		break;
+	case 3:		/* register to register */
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	/* execute */
+	switch (mod) {
+	case 3:
+		switch (rh) {
+		case 4:
+			switch (rl) {
+			case 0:
+				x86emu_fpu_R_feni();
+				break;
+			case 1:
+				x86emu_fpu_R_fdisi();
+				break;
+			case 2:
+				x86emu_fpu_R_fclex();
+				break;
+			case 3:
+				x86emu_fpu_R_finit();
+				break;
+			default:
+				x86emu_fpu_illegal();
+				break;
+			}
+			break;
+		default:
+			x86emu_fpu_illegal();
+			break;
+		}
+		break;
+	default:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_M_fild(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 1:
+			x86emu_fpu_illegal();
+			break;
+		case 2:
+			x86emu_fpu_M_fist(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 3:
+			x86emu_fpu_M_fistp(X86EMU_FPU_SHORT, destoffset);
+			break;
+		case 4:
+			x86emu_fpu_illegal();
+			break;
+		case 5:
+			x86emu_fpu_M_fld(X86EMU_FPU_LDBL, destoffset);
+			break;
+		case 6:
+			x86emu_fpu_illegal();
+			break;
+		case 7:
+			x86emu_fpu_M_fstp(X86EMU_FPU_LDBL, destoffset);
+			break;
+		}
+	}
+#endif
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+char *x86emu_fpu_op_dc_tab[] = {
+	"FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ",
+	"FCOMP\tQWORD PTR ",
+	"FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ",
+	"FDIVR\tQWORD PTR ",
+
+	"FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ",
+	"FCOMP\tQWORD PTR ",
+	"FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ",
+	"FDIVR\tQWORD PTR ",
+
+	"FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ",
+	"FCOMP\tQWORD PTR ",
+	"FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ",
+	"FDIVR\tQWORD PTR ",
+
+	"FADD\t", "FMUL\t", "FCOM\t", "FCOMP\t",
+	"FSUBR\t", "FSUB\t", "FDIVR\t", "FDIV\t",
+};
+#endif				/* DEBUG */
+
+/* opcode=0xdc */
+void x86emuOp_esc_coprocess_dc(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 stkelem;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	DECODE_PRINTINSTR32(x86emu_fpu_op_dc_tab, mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 3:		/* register to register */
+		stkelem = (u8) rl;
+		DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	/* execute */
+	switch (mod) {
+	case 3:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_R_fadd(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 1:
+			x86emu_fpu_R_fmul(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 2:
+			x86emu_fpu_R_fcom(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 3:
+			x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 4:
+			x86emu_fpu_R_fsubr(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 5:
+			x86emu_fpu_R_fsub(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 6:
+			x86emu_fpu_R_fdivr(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 7:
+			x86emu_fpu_R_fdiv(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		}
+		break;
+	default:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_M_fadd(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 1:
+			x86emu_fpu_M_fmul(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 2:
+			x86emu_fpu_M_fcom(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 3:
+			x86emu_fpu_M_fcomp(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 4:
+			x86emu_fpu_M_fsub(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 5:
+			x86emu_fpu_M_fsubr(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 6:
+			x86emu_fpu_M_fdiv(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 7:
+			x86emu_fpu_M_fdivr(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		}
+	}
+#endif
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static char *x86emu_fpu_op_dd_tab[] = {
+	"FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ",
+	"FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t",
+
+	"FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ",
+	"FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t",
+
+	"FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ",
+	"FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t",
+
+	"FFREE\t", "FXCH\t", "FST\t", "FSTP\t",
+	"ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,",
+};
+
+#endif				/* DEBUG */
+
+/* opcode=0xdd */
+void x86emuOp_esc_coprocess_dd(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 stkelem;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	DECODE_PRINTINSTR32(x86emu_fpu_op_dd_tab, mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 3:		/* register to register */
+		stkelem = (u8) rl;
+		DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	switch (mod) {
+	case 3:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_R_ffree(stkelem);
+			break;
+		case 1:
+			x86emu_fpu_R_fxch(stkelem);
+			break;
+		case 2:
+			x86emu_fpu_R_fst(stkelem);	/* register version */
+			break;
+		case 3:
+			x86emu_fpu_R_fstp(stkelem);	/* register version */
+			break;
+		default:
+			x86emu_fpu_illegal();
+			break;
+		}
+		break;
+	default:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_M_fld(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 1:
+			x86emu_fpu_illegal();
+			break;
+		case 2:
+			x86emu_fpu_M_fst(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 3:
+			x86emu_fpu_M_fstp(X86EMU_FPU_DOUBLE, destoffset);
+			break;
+		case 4:
+			x86emu_fpu_M_frstor(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 5:
+			x86emu_fpu_illegal();
+			break;
+		case 6:
+			x86emu_fpu_M_fsave(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 7:
+			x86emu_fpu_M_fstsw(X86EMU_FPU_WORD, destoffset);
+			break;
+		}
+	}
+#endif
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static char *x86emu_fpu_op_de_tab[] = {
+	"FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ",
+	"FICOMP\tWORD PTR ",
+	"FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ",
+	"FIDIVR\tWORD PTR ",
+
+	"FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ",
+	"FICOMP\tWORD PTR ",
+	"FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ",
+	"FIDIVR\tWORD PTR ",
+
+	"FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ",
+	"FICOMP\tWORD PTR ",
+	"FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ",
+	"FIDIVR\tWORD PTR ",
+
+	"FADDP\t", "FMULP\t", "FCOMP\t", "FCOMPP\t",
+	"FSUBRP\t", "FSUBP\t", "FDIVRP\t", "FDIVP\t",
+};
+
+#endif				/* DEBUG */
+
+/* opcode=0xde */
+void x86emuOp_esc_coprocess_de(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 stkelem;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	DECODE_PRINTINSTR32(x86emu_fpu_op_de_tab, mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 3:		/* register to register */
+		stkelem = (u8) rl;
+		DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	switch (mod) {
+	case 3:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_R_faddp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 1:
+			x86emu_fpu_R_fmulp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 2:
+			x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 3:
+			if (stkelem == 1)
+				x86emu_fpu_R_fcompp(stkelem, X86EMU_FPU_STKTOP);
+			else
+				x86emu_fpu_illegal();
+			break;
+		case 4:
+			x86emu_fpu_R_fsubrp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 5:
+			x86emu_fpu_R_fsubp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 6:
+			x86emu_fpu_R_fdivrp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		case 7:
+			x86emu_fpu_R_fdivp(stkelem, X86EMU_FPU_STKTOP);
+			break;
+		}
+		break;
+	default:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_M_fiadd(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 1:
+			x86emu_fpu_M_fimul(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 2:
+			x86emu_fpu_M_ficom(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 3:
+			x86emu_fpu_M_ficomp(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 4:
+			x86emu_fpu_M_fisub(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 5:
+			x86emu_fpu_M_fisubr(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 6:
+			x86emu_fpu_M_fidiv(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 7:
+			x86emu_fpu_M_fidivr(X86EMU_FPU_WORD, destoffset);
+			break;
+		}
+	}
+#endif
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static char *x86emu_fpu_op_df_tab[] = {
+	/* mod == 00 */
+	"FILD\tWORD PTR ", "ESC_DF\t39\n", "FIST\tWORD PTR ", "FISTP\tWORD PTR ",
+	"FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ",
+	"FISTP\tQWORD PTR ",
+
+	/* mod == 01 */
+	"FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ",
+	"FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ",
+	"FISTP\tQWORD PTR ",
+
+	/* mod == 10 */
+	"FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ",
+	"FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ",
+	"FISTP\tQWORD PTR ",
+
+	/* mod == 11 */
+	"FFREE\t", "FXCH\t", "FST\t", "FSTP\t",
+	"ESC_DF\t3C,", "ESC_DF\t3D,", "ESC_DF\t3E,", "ESC_DF\t3F,"
+};
+
+#endif				/* DEBUG */
+
+/* opcode=0xdf */
+void x86emuOp_esc_coprocess_df(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 stkelem;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	DECODE_PRINTINSTR32(x86emu_fpu_op_df_tab, mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		break;
+	case 3:		/* register to register */
+		stkelem = (u8) rl;
+		DECODE_PRINTF2("\tST(%d)\n", stkelem);
+		break;
+	}
+#ifdef X86EMU_FPU_PRESENT
+	switch (mod) {
+	case 3:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_R_ffree(stkelem);
+			break;
+		case 1:
+			x86emu_fpu_R_fxch(stkelem);
+			break;
+		case 2:
+			x86emu_fpu_R_fst(stkelem);	/* register version */
+			break;
+		case 3:
+			x86emu_fpu_R_fstp(stkelem);	/* register version */
+			break;
+		default:
+			x86emu_fpu_illegal();
+			break;
+		}
+		break;
+	default:
+		switch (rh) {
+		case 0:
+			x86emu_fpu_M_fild(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 1:
+			x86emu_fpu_illegal();
+			break;
+		case 2:
+			x86emu_fpu_M_fist(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 3:
+			x86emu_fpu_M_fistp(X86EMU_FPU_WORD, destoffset);
+			break;
+		case 4:
+			x86emu_fpu_M_fbld(X86EMU_FPU_BSD, destoffset);
+			break;
+		case 5:
+			x86emu_fpu_M_fild(X86EMU_FPU_LONG, destoffset);
+			break;
+		case 6:
+			x86emu_fpu_M_fbstp(X86EMU_FPU_BSD, destoffset);
+			break;
+		case 7:
+			x86emu_fpu_M_fistp(X86EMU_FPU_LONG, destoffset);
+			break;
+		}
+	}
+#endif
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR_NO_TRACE();
+}
diff --git a/util/vgabios/x86emu/src/x86emu/makefile b/util/vgabios/x86emu/src/x86emu/makefile
new file mode 100644
index 0000000000..8ce2e9e848
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/makefile
@@ -0,0 +1,63 @@
+#############################################################################
+#
+#						Realmode X86 Emulator Library
+#
+#            	Copyright (C) 1996-1999 SciTech Software, Inc.
+#
+#  ========================================================================
+#
+#  Permission to use, copy, modify, distribute, and sell this software and
+#  its documentation for any purpose is hereby granted without fee,
+#  provided that the above copyright notice appear in all copies and that
+#  both that copyright notice and this permission notice appear in
+#  supporting documentation, and that the name of the authors not be used
+#  in advertising or publicity pertaining to distribution of the software
+#  without specific, written prior permission.  The authors makes no
+#  representations about the suitability of this software for any purpose.
+#  It is provided "as is" without express or implied warranty.
+#
+#  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+#  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+#  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+#  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+#  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+#  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+#  PERFORMANCE OF THIS SOFTWARE.
+#
+#  ========================================================================
+#
+# Descripton:   Generic makefile for the x86emu library. Requires
+#               the SciTech Software makefile definitions package to be
+#               installed, which uses the DMAKE make program.
+#
+#############################################################################
+
+.IMPORT .IGNORE: DEBUG
+
+#----------------------------------------------------------------------------
+# Define the lists of object files
+#----------------------------------------------------------------------------
+
+OBJECTS			= sys$O decode$O ops$O ops2$O prim_ops$O fpu$O debug$O
+CFLAGS      	+= -DSCITECH
+.IF $(DEBUG)
+CFLAGS			+= -DDEBUG
+.ENDIF
+LIBCLEAN  		= *.dll *.lib *.a
+LIBFILE 		= $(LP)x86emu$L
+
+#----------------------------------------------------------------------------
+# Sample test programs
+#----------------------------------------------------------------------------
+
+all: $(LIBFILE)
+
+validate$E: validate$O $(LIBFILE)
+
+#----------------------------------------------------------------------------
+# Define the list of object files to create dependency information for
+#----------------------------------------------------------------------------
+
+DEPEND_OBJ      =  validate$O $(OBJECTS)
+
+.INCLUDE: "$(SCITECH)/makedefs/common.mk"
diff --git a/util/vgabios/x86emu/src/x86emu/makefile.linux b/util/vgabios/x86emu/src/x86emu/makefile.linux
new file mode 100644
index 0000000000..313526a5dc
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/makefile.linux
@@ -0,0 +1,60 @@
+#############################################################################
+#
+#						Realmode X86 Emulator Library
+#
+#            	Copyright (C) 1996-1999 SciTech Software, Inc.
+#
+#  ========================================================================
+#
+#  Permission to use, copy, modify, distribute, and sell this software and
+#  its documentation for any purpose is hereby granted without fee,
+#  provided that the above copyright notice appear in all copies and that
+#  both that copyright notice and this permission notice appear in
+#  supporting documentation, and that the name of the authors not be used
+#  in advertising or publicity pertaining to distribution of the software
+#  without specific, written prior permission.  The authors makes no
+#  representations about the suitability of this software for any purpose.
+#  It is provided "as is" without express or implied warranty.
+#
+#  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+#  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+#  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+#  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+#  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+#  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+#  PERFORMANCE OF THIS SOFTWARE.
+#
+#  ========================================================================
+#
+# Descripton:   Linux specific makefile for the x86emu library.
+#
+#############################################################################
+
+TARGETLIB = libx86emu.a
+
+OBJS=\
+debug.o \
+decode.o \
+fpu.o \
+ops.o \
+ops2.o \
+prim_ops.o \
+sys.o
+
+$(TARGETLIB): $(OBJS)
+	ar rv $(TARGETLIB) $(OBJS)
+
+INCS   = -I. -Ix86emu -I../../include
+CFLAGS = -D__DRIVER__ -DFORCE_POST -D_CEXPORT= -DNO_LONG_LONG -DDEBUG
+
+.c.o:
+	gcc -g -O -Wall -c $(CFLAGS) $(INCS) $*.c
+
+.cpp.o:
+	gcc -c $(CFLAGS) $(INCS) $*.cpp
+
+clean:
+	rm -f *.a *.o
+
+validate:	validate.o libx86emu.a
+	gcc -o validate validate.o -lx86emu -L.
diff --git a/util/vgabios/x86emu/src/x86emu/ops.c b/util/vgabios/x86emu/src/x86emu/ops.c
new file mode 100644
index 0000000000..92dbd66833
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/ops.c
@@ -0,0 +1,11622 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file includes subroutines to implement the decoding
+*               and emulation of all the x86 processor instructions.
+*
+* There are approximately 250 subroutines in here, which correspond
+* to the 256 byte-"opcodes" found on the 8086.  The table which
+* dispatches this is found in the files optab.[ch].
+*
+* Each opcode proc has a comment preceeding it which gives it's table
+* address.  Several opcodes are missing (undefined) in the table.
+*
+* Each proc includes information for decoding (DECODE_PRINTF and
+* DECODE_PRINTF2), debugging (TRACE_REGS, SINGLE_STEP), and misc
+* functions (START_OF_INSTR, END_OF_INSTR).
+*
+* Many of the procedures are *VERY* similar in coding.  This has
+* allowed for a very large amount of code to be generated in a fairly
+* short amount of time (i.e. cut, paste, and modify).  The result is
+* that much of the code below could have been folded into subroutines
+* for a large reduction in size of this file.  The downside would be
+* that there would be a penalty in execution speed.  The file could
+* also have been *MUCH* larger by inlining certain functions which
+* were called.  This could have resulted even faster execution.  The
+* prime directive I used to decide whether to inline the code or to
+* modularize it, was basically: 1) no unnecessary subroutine calls,
+* 2) no routines more than about 200 lines in size, and 3) modularize
+* any code that I might not get right the first time.  The fetch_*
+* subroutines fall into the latter category.  The The decode_* fall
+* into the second category.  The coding of the "switch(mod){ .... }"
+* in many of the subroutines below falls into the first category.
+* Especially, the coding of {add,and,or,sub,...}_{byte,word}
+* subroutines are an especially glaring case of the third guideline.
+* Since so much of the code is cloned from other modules (compare
+* opcode #00 to opcode #01), making the basic operations subroutine
+* calls is especially important; otherwise mistakes in coding an
+* "add" would represent a nightmare in maintenance.
+*
+****************************************************************************/
+
+/* $XFree86: xc/extras/x86emu/src/x86emu/ops.c,v 1.6 2001/01/06 20:19:03 tsi Exp $ */
+
+#include "x86emu/x86emui.h"
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+op1 - Instruction op code
+
+REMARKS:
+Handles illegal opcodes.
+****************************************************************************/
+void x86emuOp_illegal_op(u8 op1)
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("ILLEGAL X86 OPCODE\n");
+	TRACE_REGS();
+	printk("%04x:%04x: %02X ILLEGAL X86 OPCODE!\n", M.x86.R_CS, M.x86.R_IP - 1, op1);
+	HALT_SYS();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x00
+****************************************************************************/
+void x86emuOp_add_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 *destreg, *srcreg;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = add_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = add_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = add_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = add_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x01
+****************************************************************************/
+void x86emuOp_add_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = add_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = add_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = add_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = add_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = add_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = add_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x02
+****************************************************************************/
+void x86emuOp_add_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = add_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = add_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = add_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = add_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x03
+****************************************************************************/
+void x86emuOp_add_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = add_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x04
+****************************************************************************/
+void x86emuOp_add_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADD\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = add_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x05
+****************************************************************************/
+void x86emuOp_add_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("ADD\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("ADD\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = add_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = add_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x06
+****************************************************************************/
+void x86emuOp_push_ES(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("PUSH\tES\n");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_ES);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x07
+****************************************************************************/
+void x86emuOp_pop_ES(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("POP\tES\n");
+	TRACE_AND_STEP();
+	M.x86.R_ES = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x08
+****************************************************************************/
+void x86emuOp_or_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = or_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = or_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = or_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = or_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x09
+****************************************************************************/
+void x86emuOp_or_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = or_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = or_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = or_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = or_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = or_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = or_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0a
+****************************************************************************/
+void x86emuOp_or_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = or_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = or_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = or_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = or_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0b
+****************************************************************************/
+void x86emuOp_or_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = or_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0c
+****************************************************************************/
+void x86emuOp_or_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OR\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = or_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0d
+****************************************************************************/
+void x86emuOp_or_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("OR\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("OR\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = or_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = or_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0e
+****************************************************************************/
+void x86emuOp_push_CS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("PUSH\tCS\n");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_CS);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f. Escape for two-byte opcode (286 or better)
+****************************************************************************/
+void x86emuOp_two_byte(u8 X86EMU_UNUSED(op1))
+{
+	u8 op2 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+	INC_DECODED_INST_LEN(1);
+	(*x86emu_optab2[op2]) (op2);
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x10
+****************************************************************************/
+void x86emuOp_adc_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADC\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = adc_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = adc_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = adc_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = adc_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x11
+****************************************************************************/
+void x86emuOp_adc_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADC\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = adc_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = adc_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = adc_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = adc_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = adc_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = adc_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x12
+****************************************************************************/
+void x86emuOp_adc_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADC\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = adc_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = adc_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = adc_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = adc_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x13
+****************************************************************************/
+void x86emuOp_adc_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADC\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = adc_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x14
+****************************************************************************/
+void x86emuOp_adc_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("ADC\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = adc_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x15
+****************************************************************************/
+void x86emuOp_adc_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("ADC\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("ADC\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = adc_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = adc_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x16
+****************************************************************************/
+void x86emuOp_push_SS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("PUSH\tSS\n");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_SS);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x17
+****************************************************************************/
+void x86emuOp_pop_SS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("POP\tSS\n");
+	TRACE_AND_STEP();
+	M.x86.R_SS = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x18
+****************************************************************************/
+void x86emuOp_sbb_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SBB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = sbb_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = sbb_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = sbb_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sbb_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x19
+****************************************************************************/
+void x86emuOp_sbb_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SBB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sbb_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sbb_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sbb_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sbb_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sbb_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sbb_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1a
+****************************************************************************/
+void x86emuOp_sbb_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SBB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sbb_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sbb_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sbb_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sbb_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1b
+****************************************************************************/
+void x86emuOp_sbb_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SBB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sbb_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1c
+****************************************************************************/
+void x86emuOp_sbb_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SBB\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = sbb_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1d
+****************************************************************************/
+void x86emuOp_sbb_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("SBB\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("SBB\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = sbb_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = sbb_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1e
+****************************************************************************/
+void x86emuOp_push_DS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("PUSH\tDS\n");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_DS);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1f
+****************************************************************************/
+void x86emuOp_pop_DS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("POP\tDS\n");
+	TRACE_AND_STEP();
+	M.x86.R_DS = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x20
+****************************************************************************/
+void x86emuOp_and_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AND\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = and_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = and_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = and_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = and_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x21
+****************************************************************************/
+void x86emuOp_and_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AND\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = and_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = and_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = and_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = and_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = and_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = and_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x22
+****************************************************************************/
+void x86emuOp_and_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AND\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = and_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = and_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = and_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = and_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x23
+****************************************************************************/
+void x86emuOp_and_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AND\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_long(*destreg, srcval);
+			break;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_word(*destreg, srcval);
+			break;
+		}
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = and_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x24
+****************************************************************************/
+void x86emuOp_and_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AND\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = and_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x25
+****************************************************************************/
+void x86emuOp_and_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("AND\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("AND\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = and_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = and_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x26
+****************************************************************************/
+void x86emuOp_segovr_ES(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("ES:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_SEGOVR_ES;
+	/*
+	 * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+	 * opcode subroutines we do not want to do this.
+	 */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x27
+****************************************************************************/
+void x86emuOp_daa(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("DAA\n");
+	TRACE_AND_STEP();
+	M.x86.R_AL = daa_byte(M.x86.R_AL);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x28
+****************************************************************************/
+void x86emuOp_sub_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SUB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = sub_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = sub_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = sub_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sub_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x29
+****************************************************************************/
+void x86emuOp_sub_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SUB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sub_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sub_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sub_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sub_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sub_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = sub_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2a
+****************************************************************************/
+void x86emuOp_sub_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SUB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sub_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sub_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sub_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = sub_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2b
+****************************************************************************/
+void x86emuOp_sub_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SUB\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = sub_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2c
+****************************************************************************/
+void x86emuOp_sub_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SUB\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = sub_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2d
+****************************************************************************/
+void x86emuOp_sub_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("SUB\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("SUB\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = sub_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = sub_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2e
+****************************************************************************/
+void x86emuOp_segovr_CS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("CS:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_SEGOVR_CS;
+	/* note no DECODE_CLEAR_SEGOVR here. */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2f
+****************************************************************************/
+void x86emuOp_das(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("DAS\n");
+	TRACE_AND_STEP();
+	M.x86.R_AL = das_byte(M.x86.R_AL);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x30
+****************************************************************************/
+void x86emuOp_xor_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XOR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = xor_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = xor_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = xor_byte(destval, *srcreg);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = xor_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x31
+****************************************************************************/
+void x86emuOp_xor_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XOR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = xor_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = xor_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = xor_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = xor_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = xor_long(destval, *srcreg);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = xor_word(destval, *srcreg);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x32
+****************************************************************************/
+void x86emuOp_xor_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XOR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = xor_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = xor_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = xor_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = xor_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x33
+****************************************************************************/
+void x86emuOp_xor_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XOR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = xor_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x34
+****************************************************************************/
+void x86emuOp_xor_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XOR\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	M.x86.R_AL = xor_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x35
+****************************************************************************/
+void x86emuOp_xor_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XOR\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("XOR\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = xor_long(M.x86.R_EAX, srcval);
+	} else {
+		M.x86.R_AX = xor_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x36
+****************************************************************************/
+void x86emuOp_segovr_SS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("SS:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_SEGOVR_SS;
+	/* no DECODE_CLEAR_SEGOVR ! */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x37
+****************************************************************************/
+void x86emuOp_aaa(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("AAA\n");
+	TRACE_AND_STEP();
+	M.x86.R_AX = aaa_word(M.x86.R_AX);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x38
+****************************************************************************/
+void x86emuOp_cmp_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 *destreg, *srcreg;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CMP\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(destval, *srcreg);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(destval, *srcreg);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(destval, *srcreg);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x39
+****************************************************************************/
+void x86emuOp_cmp_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CMP\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(destval, *srcreg);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(destval, *srcreg);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(destval, *srcreg);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(destval, *srcreg);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(destval, *srcreg);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(destval, *srcreg);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3a
+****************************************************************************/
+void x86emuOp_cmp_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CMP\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(*destreg, srcval);
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(*destreg, srcval);
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(*destreg, srcval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		cmp_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3b
+****************************************************************************/
+void x86emuOp_cmp_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CMP\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(*destreg, srcval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(*destreg, srcval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(*destreg, srcval);
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(*destreg, srcval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			cmp_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3c
+****************************************************************************/
+void x86emuOp_cmp_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CMP\tAL,");
+	srcval = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	cmp_byte(M.x86.R_AL, srcval);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3d
+****************************************************************************/
+void x86emuOp_cmp_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("CMP\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("CMP\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		cmp_long(M.x86.R_EAX, srcval);
+	} else {
+		cmp_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3e
+****************************************************************************/
+void x86emuOp_segovr_DS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("DS:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_SEGOVR_DS;
+	/* NO DECODE_CLEAR_SEGOVR! */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3f
+****************************************************************************/
+void x86emuOp_aas(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("AAS\n");
+	TRACE_AND_STEP();
+	M.x86.R_AX = aas_word(M.x86.R_AX);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x40
+****************************************************************************/
+void x86emuOp_inc_AX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tEAX\n");
+	} else {
+		DECODE_PRINTF("INC\tAX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = inc_long(M.x86.R_EAX);
+	} else {
+		M.x86.R_AX = inc_word(M.x86.R_AX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x41
+****************************************************************************/
+void x86emuOp_inc_CX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tECX\n");
+	} else {
+		DECODE_PRINTF("INC\tCX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ECX = inc_long(M.x86.R_ECX);
+	} else {
+		M.x86.R_CX = inc_word(M.x86.R_CX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x42
+****************************************************************************/
+void x86emuOp_inc_DX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tEDX\n");
+	} else {
+		DECODE_PRINTF("INC\tDX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDX = inc_long(M.x86.R_EDX);
+	} else {
+		M.x86.R_DX = inc_word(M.x86.R_DX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x43
+****************************************************************************/
+void x86emuOp_inc_BX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tEBX\n");
+	} else {
+		DECODE_PRINTF("INC\tBX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBX = inc_long(M.x86.R_EBX);
+	} else {
+		M.x86.R_BX = inc_word(M.x86.R_BX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x44
+****************************************************************************/
+void x86emuOp_inc_SP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tESP\n");
+	} else {
+		DECODE_PRINTF("INC\tSP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESP = inc_long(M.x86.R_ESP);
+	} else {
+		M.x86.R_SP = inc_word(M.x86.R_SP);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x45
+****************************************************************************/
+void x86emuOp_inc_BP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tEBP\n");
+	} else {
+		DECODE_PRINTF("INC\tBP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBP = inc_long(M.x86.R_EBP);
+	} else {
+		M.x86.R_BP = inc_word(M.x86.R_BP);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x46
+****************************************************************************/
+void x86emuOp_inc_SI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tESI\n");
+	} else {
+		DECODE_PRINTF("INC\tSI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESI = inc_long(M.x86.R_ESI);
+	} else {
+		M.x86.R_SI = inc_word(M.x86.R_SI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x47
+****************************************************************************/
+void x86emuOp_inc_DI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tEDI\n");
+	} else {
+		DECODE_PRINTF("INC\tDI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDI = inc_long(M.x86.R_EDI);
+	} else {
+		M.x86.R_DI = inc_word(M.x86.R_DI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x48
+****************************************************************************/
+void x86emuOp_dec_AX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tEAX\n");
+	} else {
+		DECODE_PRINTF("DEC\tAX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = dec_long(M.x86.R_EAX);
+	} else {
+		M.x86.R_AX = dec_word(M.x86.R_AX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x49
+****************************************************************************/
+void x86emuOp_dec_CX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tECX\n");
+	} else {
+		DECODE_PRINTF("DEC\tCX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ECX = dec_long(M.x86.R_ECX);
+	} else {
+		M.x86.R_CX = dec_word(M.x86.R_CX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4a
+****************************************************************************/
+void x86emuOp_dec_DX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tEDX\n");
+	} else {
+		DECODE_PRINTF("DEC\tDX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDX = dec_long(M.x86.R_EDX);
+	} else {
+		M.x86.R_DX = dec_word(M.x86.R_DX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4b
+****************************************************************************/
+void x86emuOp_dec_BX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tEBX\n");
+	} else {
+		DECODE_PRINTF("DEC\tBX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBX = dec_long(M.x86.R_EBX);
+	} else {
+		M.x86.R_BX = dec_word(M.x86.R_BX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4c
+****************************************************************************/
+void x86emuOp_dec_SP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tESP\n");
+	} else {
+		DECODE_PRINTF("DEC\tSP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESP = dec_long(M.x86.R_ESP);
+	} else {
+		M.x86.R_SP = dec_word(M.x86.R_SP);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4d
+****************************************************************************/
+void x86emuOp_dec_BP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tEBP\n");
+	} else {
+		DECODE_PRINTF("DEC\tBP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBP = dec_long(M.x86.R_EBP);
+	} else {
+		M.x86.R_BP = dec_word(M.x86.R_BP);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4e
+****************************************************************************/
+void x86emuOp_dec_SI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tESI\n");
+	} else {
+		DECODE_PRINTF("DEC\tSI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESI = dec_long(M.x86.R_ESI);
+	} else {
+		M.x86.R_SI = dec_word(M.x86.R_SI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4f
+****************************************************************************/
+void x86emuOp_dec_DI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tEDI\n");
+	} else {
+		DECODE_PRINTF("DEC\tDI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDI = dec_long(M.x86.R_EDI);
+	} else {
+		M.x86.R_DI = dec_word(M.x86.R_DI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x50
+****************************************************************************/
+void x86emuOp_push_AX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tEAX\n");
+	} else {
+		DECODE_PRINTF("PUSH\tAX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_EAX);
+	} else {
+		push_word(M.x86.R_AX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x51
+****************************************************************************/
+void x86emuOp_push_CX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tECX\n");
+	} else {
+		DECODE_PRINTF("PUSH\tCX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_ECX);
+	} else {
+		push_word(M.x86.R_CX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x52
+****************************************************************************/
+void x86emuOp_push_DX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tEDX\n");
+	} else {
+		DECODE_PRINTF("PUSH\tDX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_EDX);
+	} else {
+		push_word(M.x86.R_DX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x53
+****************************************************************************/
+void x86emuOp_push_BX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tEBX\n");
+	} else {
+		DECODE_PRINTF("PUSH\tBX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_EBX);
+	} else {
+		push_word(M.x86.R_BX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x54
+****************************************************************************/
+void x86emuOp_push_SP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tESP\n");
+	} else {
+		DECODE_PRINTF("PUSH\tSP\n");
+	}
+	TRACE_AND_STEP();
+	/* Always push (E)SP, since we are emulating an i386 and above
+	 * processor. This is necessary as some BIOS'es use this to check
+	 * what type of processor is in the system.
+	 */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_ESP);
+	} else {
+		push_word((u16) (M.x86.R_SP));
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x55
+****************************************************************************/
+void x86emuOp_push_BP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tEBP\n");
+	} else {
+		DECODE_PRINTF("PUSH\tBP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_EBP);
+	} else {
+		push_word(M.x86.R_BP);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x56
+****************************************************************************/
+void x86emuOp_push_SI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tESI\n");
+	} else {
+		DECODE_PRINTF("PUSH\tSI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_ESI);
+	} else {
+		push_word(M.x86.R_SI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x57
+****************************************************************************/
+void x86emuOp_push_DI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSH\tEDI\n");
+	} else {
+		DECODE_PRINTF("PUSH\tDI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(M.x86.R_EDI);
+	} else {
+		push_word(M.x86.R_DI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x58
+****************************************************************************/
+void x86emuOp_pop_AX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tEAX\n");
+	} else {
+		DECODE_PRINTF("POP\tAX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = pop_long();
+	} else {
+		M.x86.R_AX = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x59
+****************************************************************************/
+void x86emuOp_pop_CX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tECX\n");
+	} else {
+		DECODE_PRINTF("POP\tCX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ECX = pop_long();
+	} else {
+		M.x86.R_CX = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5a
+****************************************************************************/
+void x86emuOp_pop_DX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tEDX\n");
+	} else {
+		DECODE_PRINTF("POP\tDX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDX = pop_long();
+	} else {
+		M.x86.R_DX = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5b
+****************************************************************************/
+void x86emuOp_pop_BX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tEBX\n");
+	} else {
+		DECODE_PRINTF("POP\tBX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBX = pop_long();
+	} else {
+		M.x86.R_BX = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5c
+****************************************************************************/
+void x86emuOp_pop_SP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tESP\n");
+	} else {
+		DECODE_PRINTF("POP\tSP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESP = pop_long();
+	} else {
+		M.x86.R_SP = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5d
+****************************************************************************/
+void x86emuOp_pop_BP(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tEBP\n");
+	} else {
+		DECODE_PRINTF("POP\tBP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBP = pop_long();
+	} else {
+		M.x86.R_BP = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5e
+****************************************************************************/
+void x86emuOp_pop_SI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tESI\n");
+	} else {
+		DECODE_PRINTF("POP\tSI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESI = pop_long();
+	} else {
+		M.x86.R_SI = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5f
+****************************************************************************/
+void x86emuOp_pop_DI(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POP\tEDI\n");
+	} else {
+		DECODE_PRINTF("POP\tDI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDI = pop_long();
+	} else {
+		M.x86.R_DI = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x60
+****************************************************************************/
+void x86emuOp_push_all(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSHAD\n");
+	} else {
+		DECODE_PRINTF("PUSHA\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 old_sp = M.x86.R_ESP;
+
+		push_long(M.x86.R_EAX);
+		push_long(M.x86.R_ECX);
+		push_long(M.x86.R_EDX);
+		push_long(M.x86.R_EBX);
+		push_long(old_sp);
+		push_long(M.x86.R_EBP);
+		push_long(M.x86.R_ESI);
+		push_long(M.x86.R_EDI);
+	} else {
+		u16 old_sp = M.x86.R_SP;
+
+		push_word(M.x86.R_AX);
+		push_word(M.x86.R_CX);
+		push_word(M.x86.R_DX);
+		push_word(M.x86.R_BX);
+		push_word(old_sp);
+		push_word(M.x86.R_BP);
+		push_word(M.x86.R_SI);
+		push_word(M.x86.R_DI);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x61
+****************************************************************************/
+void x86emuOp_pop_all(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POPAD\n");
+	} else {
+		DECODE_PRINTF("POPA\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDI = pop_long();
+		M.x86.R_ESI = pop_long();
+		M.x86.R_EBP = pop_long();
+		M.x86.R_ESP += 4;	/* skip ESP */
+		M.x86.R_EBX = pop_long();
+		M.x86.R_EDX = pop_long();
+		M.x86.R_ECX = pop_long();
+		M.x86.R_EAX = pop_long();
+	} else {
+		M.x86.R_DI = pop_word();
+		M.x86.R_SI = pop_word();
+		M.x86.R_BP = pop_word();
+		M.x86.R_SP += 2;	/* skip SP */
+		M.x86.R_BX = pop_word();
+		M.x86.R_DX = pop_word();
+		M.x86.R_CX = pop_word();
+		M.x86.R_AX = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/*opcode 0x62   ILLEGAL OP, calls x86emuOp_illegal_op() */
+/*opcode 0x63   ILLEGAL OP, calls x86emuOp_illegal_op() */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x64
+****************************************************************************/
+void x86emuOp_segovr_FS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("FS:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_SEGOVR_FS;
+	/*
+	 * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+	 * opcode subroutines we do not want to do this.
+	 */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x65
+****************************************************************************/
+void x86emuOp_segovr_GS(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("GS:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_SEGOVR_GS;
+	/*
+	 * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+	 * opcode subroutines we do not want to do this.
+	 */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x66 - prefix for 32-bit register
+****************************************************************************/
+void x86emuOp_prefix_data(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("DATA:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_PREFIX_DATA;
+	/* note no DECODE_CLEAR_SEGOVR here. */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x67 - prefix for 32-bit address
+****************************************************************************/
+void x86emuOp_prefix_addr(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("ADDR:\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_PREFIX_ADDR;
+	/* note no DECODE_CLEAR_SEGOVR here. */
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x68
+****************************************************************************/
+void x86emuOp_push_word_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 imm;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		imm = fetch_long_imm();
+	} else {
+		imm = fetch_word_imm();
+	}
+	DECODE_PRINTF2("PUSH\t%x\n", imm);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(imm);
+	} else {
+		push_word((u16) imm);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x69
+****************************************************************************/
+void x86emuOp_imul_word_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("IMUL\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+			s32 imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+			s16 imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			res = (s16) srcval *(s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+			s32 imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+			s16 imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			res = (s16) srcval *(s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+			s32 imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+			s16 imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			res = (s16) srcval *(s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+			u32 res_lo, res_hi;
+			s32 imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) * srcreg, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg, *srcreg;
+			u32 res;
+			s16 imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			res = (s16) * srcreg * (s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6a
+****************************************************************************/
+void x86emuOp_push_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+	s16 imm;
+
+	START_OF_INSTR();
+	imm = (s8) fetch_byte_imm();
+	DECODE_PRINTF2("PUSH\t%d\n", imm);
+	TRACE_AND_STEP();
+	push_word(imm);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6b
+****************************************************************************/
+void x86emuOp_imul_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	s8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("IMUL\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			res = (s16) srcval *(s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			res = (s16) srcval *(s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			res = (s16) srcval *(s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) * srcreg, (s32) imm);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg, *srcreg;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			imm = fetch_byte_imm();
+			DECODE_PRINTF2(",%d\n", (s32) imm);
+			res = (s16) * srcreg * (s16) imm;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6c
+****************************************************************************/
+void x86emuOp_ins_byte(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("INSB\n");
+	ins(1);
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6d
+****************************************************************************/
+void x86emuOp_ins_word(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INSD\n");
+		ins(4);
+	} else {
+		DECODE_PRINTF("INSW\n");
+		ins(2);
+	}
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6e
+****************************************************************************/
+void x86emuOp_outs_byte(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("OUTSB\n");
+	outs(1);
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6f
+****************************************************************************/
+void x86emuOp_outs_word(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("OUTSD\n");
+		outs(4);
+	} else {
+		DECODE_PRINTF("OUTSW\n");
+		outs(2);
+	}
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x70
+****************************************************************************/
+void x86emuOp_jump_near_O(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if overflow flag is set */
+	START_OF_INSTR();
+	DECODE_PRINTF("JO\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_OF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x71
+****************************************************************************/
+void x86emuOp_jump_near_NO(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if overflow is not set */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNO\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (!ACCESS_FLAG(F_OF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x72
+****************************************************************************/
+void x86emuOp_jump_near_B(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if carry flag is set. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JB\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_CF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x73
+****************************************************************************/
+void x86emuOp_jump_near_NB(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if carry flag is clear. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNB\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (!ACCESS_FLAG(F_CF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x74
+****************************************************************************/
+void x86emuOp_jump_near_Z(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if zero flag is set. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JZ\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_ZF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x75
+****************************************************************************/
+void x86emuOp_jump_near_NZ(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if zero flag is clear. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNZ\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (!ACCESS_FLAG(F_ZF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x76
+****************************************************************************/
+void x86emuOp_jump_near_BE(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if carry flag is set or if the zero
+	   flag is set. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JBE\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x77
+****************************************************************************/
+void x86emuOp_jump_near_NBE(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if carry flag is clear and if the zero
+	   flag is clear */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNBE\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (!(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x78
+****************************************************************************/
+void x86emuOp_jump_near_S(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if sign flag is set */
+	START_OF_INSTR();
+	DECODE_PRINTF("JS\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_SF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x79
+****************************************************************************/
+void x86emuOp_jump_near_NS(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if sign flag is clear */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNS\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (!ACCESS_FLAG(F_SF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7a
+****************************************************************************/
+void x86emuOp_jump_near_P(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if parity flag is set (even parity) */
+	START_OF_INSTR();
+	DECODE_PRINTF("JP\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_PF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7b
+****************************************************************************/
+void x86emuOp_jump_near_NP(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+
+	/* jump to byte offset if parity flag is clear (odd parity) */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNP\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (!ACCESS_FLAG(F_PF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7c
+****************************************************************************/
+void x86emuOp_jump_near_L(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+	int sf, of;
+
+	/* jump to byte offset if sign flag not equal to overflow flag. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JL\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	sf = ACCESS_FLAG(F_SF) != 0;
+	of = ACCESS_FLAG(F_OF) != 0;
+	if (sf ^ of)
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7d
+****************************************************************************/
+void x86emuOp_jump_near_NL(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+	int sf, of;
+
+	/* jump to byte offset if sign flag not equal to overflow flag. */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNL\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	sf = ACCESS_FLAG(F_SF) != 0;
+	of = ACCESS_FLAG(F_OF) != 0;
+	/* note: inverse of above, but using == instead of xor. */
+	if (sf == of)
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7e
+****************************************************************************/
+void x86emuOp_jump_near_LE(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+	int sf, of;
+
+	/* jump to byte offset if sign flag not equal to overflow flag
+	   or the zero flag is set */
+	START_OF_INSTR();
+	DECODE_PRINTF("JLE\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	sf = ACCESS_FLAG(F_SF) != 0;
+	of = ACCESS_FLAG(F_OF) != 0;
+	if ((sf ^ of) || ACCESS_FLAG(F_ZF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7f
+****************************************************************************/
+void x86emuOp_jump_near_NLE(u8 X86EMU_UNUSED(op1))
+{
+	s8 offset;
+	u16 target;
+	int sf, of;
+
+	/* jump to byte offset if sign flag equal to overflow flag.
+	   and the zero flag is clear */
+	START_OF_INSTR();
+	DECODE_PRINTF("JNLE\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + (s16) offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	sf = ACCESS_FLAG(F_SF) != 0;
+	of = ACCESS_FLAG(F_OF) != 0;
+	if ((sf == of) && !ACCESS_FLAG(F_ZF))
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+static u8(*opc80_byte_operation[]) (u8 d, u8 s) = {
+	add_byte,		/* 00 */
+	    or_byte,		/* 01 */
+	    adc_byte,		/* 02 */
+	    sbb_byte,		/* 03 */
+	    and_byte,		/* 04 */
+	    sub_byte,		/* 05 */
+	    xor_byte,		/* 06 */
+	    cmp_byte,		/* 07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x80
+****************************************************************************/
+void x86emuOp_opc80_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 imm;
+	u8 destval;
+
+	/*
+	 * Weirdo special case instruction format.  Part of the opcode
+	 * held below in "RH".  Doubly nested case would result, except
+	 * that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ADD\t");
+			break;
+		case 1:
+			DECODE_PRINTF("OR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("ADC\t");
+			break;
+		case 3:
+			DECODE_PRINTF("SBB\t");
+			break;
+		case 4:
+			DECODE_PRINTF("AND\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SUB\t");
+			break;
+		case 6:
+			DECODE_PRINTF("XOR\t");
+			break;
+		case 7:
+			DECODE_PRINTF("CMP\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2("%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc80_byte_operation[rh]) (destval, imm);
+		if (rh != 7)
+			store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2("%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc80_byte_operation[rh]) (destval, imm);
+		if (rh != 7)
+			store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2("%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc80_byte_operation[rh]) (destval, imm);
+		if (rh != 7)
+			store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2("%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc80_byte_operation[rh]) (*destreg, imm);
+		if (rh != 7)
+			*destreg = destval;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+static u16(*opc81_word_operation[]) (u16 d, u16 s) = {
+	add_word,		/*00 */
+	    or_word,		/*01 */
+	    adc_word,		/*02 */
+	    sbb_word,		/*03 */
+	    and_word,		/*04 */
+	    sub_word,		/*05 */
+	    xor_word,		/*06 */
+	    cmp_word,		/*07 */
+};
+
+static u32(*opc81_long_operation[]) (u32 d, u32 s) = {
+	add_long,		/*00 */
+	    or_long,		/*01 */
+	    adc_long,		/*02 */
+	    sbb_long,		/*03 */
+	    and_long,		/*04 */
+	    sub_long,		/*05 */
+	    xor_long,		/*06 */
+	    cmp_long,		/*07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x81
+****************************************************************************/
+void x86emuOp_opc81_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	/*
+	 * Weirdo special case instruction format.  Part of the opcode
+	 * held below in "RH".  Doubly nested case would result, except
+	 * that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ADD\t");
+			break;
+		case 1:
+			DECODE_PRINTF("OR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("ADC\t");
+			break;
+		case 3:
+			DECODE_PRINTF("SBB\t");
+			break;
+		case 4:
+			DECODE_PRINTF("AND\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SUB\t");
+			break;
+		case 6:
+			DECODE_PRINTF("XOR\t");
+			break;
+		case 7:
+			DECODE_PRINTF("CMP\t");
+			break;
+		}
+	}
+#endif
+	/*
+	 * Know operation, decode the mod byte to find the addressing 
+	 * mode.
+	 */
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval, imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_long_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_long(destoffset, destval);
+		} else {
+			u16 destval, imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_word_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval, imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_long_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_long(destoffset, destval);
+		} else {
+			u16 destval, imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_word_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval, imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_long_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_long(destoffset, destval);
+		} else {
+			u16 destval, imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_word_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 destval, imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			imm = fetch_long_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_long_operation[rh]) (*destreg, imm);
+			if (rh != 7)
+				*destreg = destval;
+		} else {
+			u16 *destreg;
+			u16 destval, imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			imm = fetch_word_imm();
+			DECODE_PRINTF2("%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc81_word_operation[rh]) (*destreg, imm);
+			if (rh != 7)
+				*destreg = destval;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+static u8(*opc82_byte_operation[]) (u8 s, u8 d) = {
+	add_byte,		/*00 */
+	    or_byte,		/*01 *//*YYY UNUSED ???? */
+	    adc_byte,		/*02 */
+	    sbb_byte,		/*03 */
+	    and_byte,		/*04 *//*YYY UNUSED ???? */
+	    sub_byte,		/*05 */
+	    xor_byte,		/*06 *//*YYY UNUSED ???? */
+	    cmp_byte,		/*07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x82
+****************************************************************************/
+void x86emuOp_opc82_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 imm;
+	u8 destval;
+
+	/*
+	 * Weirdo special case instruction format.  Part of the opcode
+	 * held below in "RH".  Doubly nested case would result, except
+	 * that the decoded instruction Similar to opcode 81, except that
+	 * the immediate byte is sign extended to a word length.
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ADD\t");
+			break;
+		case 1:
+			DECODE_PRINTF("OR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("ADC\t");
+			break;
+		case 3:
+			DECODE_PRINTF("SBB\t");
+			break;
+		case 4:
+			DECODE_PRINTF("AND\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SUB\t");
+			break;
+		case 6:
+			DECODE_PRINTF("XOR\t");
+			break;
+		case 7:
+			DECODE_PRINTF("CMP\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		destval = fetch_data_byte(destoffset);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc82_byte_operation[rh]) (destval, imm);
+		if (rh != 7)
+			store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		destval = fetch_data_byte(destoffset);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc82_byte_operation[rh]) (destval, imm);
+		if (rh != 7)
+			store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		destval = fetch_data_byte(destoffset);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc82_byte_operation[rh]) (destval, imm);
+		if (rh != 7)
+			store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", imm);
+		TRACE_AND_STEP();
+		destval = (*opc82_byte_operation[rh]) (*destreg, imm);
+		if (rh != 7)
+			*destreg = destval;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+static u16(*opc83_word_operation[]) (u16 s, u16 d) = {
+	add_word,		/*00 */
+	    or_word,		/*01 *//*YYY UNUSED ???? */
+	    adc_word,		/*02 */
+	    sbb_word,		/*03 */
+	    and_word,		/*04 *//*YYY UNUSED ???? */
+	    sub_word,		/*05 */
+	    xor_word,		/*06 *//*YYY UNUSED ???? */
+	    cmp_word,		/*07 */
+};
+
+static u32(*opc83_long_operation[]) (u32 s, u32 d) = {
+	add_long,		/*00 */
+	    or_long,		/*01 *//*YYY UNUSED ???? */
+	    adc_long,		/*02 */
+	    sbb_long,		/*03 */
+	    and_long,		/*04 *//*YYY UNUSED ???? */
+	    sub_long,		/*05 */
+	    xor_long,		/*06 *//*YYY UNUSED ???? */
+	    cmp_long,		/*07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x83
+****************************************************************************/
+void x86emuOp_opc83_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	/*
+	 * Weirdo special case instruction format.  Part of the opcode
+	 * held below in "RH".  Doubly nested case would result, except
+	 * that the decoded instruction Similar to opcode 81, except that
+	 * the immediate byte is sign extended to a word length.
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ADD\t");
+			break;
+		case 1:
+			DECODE_PRINTF("OR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("ADC\t");
+			break;
+		case 3:
+			DECODE_PRINTF("SBB\t");
+			break;
+		case 4:
+			DECODE_PRINTF("AND\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SUB\t");
+			break;
+		case 6:
+			DECODE_PRINTF("XOR\t");
+			break;
+		case 7:
+			DECODE_PRINTF("CMP\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval, imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			destval = fetch_data_long(destoffset);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_long_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_long(destoffset, destval);
+		} else {
+			u16 destval, imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			destval = fetch_data_word(destoffset);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_word_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval, imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			destval = fetch_data_long(destoffset);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_long_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_long(destoffset, destval);
+		} else {
+			u16 destval, imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			destval = fetch_data_word(destoffset);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_word_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval, imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			destval = fetch_data_long(destoffset);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_long_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_long(destoffset, destval);
+		} else {
+			u16 destval, imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			destval = fetch_data_word(destoffset);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_word_operation[rh]) (destval, imm);
+			if (rh != 7)
+				store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 destval, imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_long_operation[rh]) (*destreg, imm);
+			if (rh != 7)
+				*destreg = destval;
+		} else {
+			u16 *destreg;
+			u16 destval, imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			imm = (s8) fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			destval = (*opc83_word_operation[rh]) (*destreg, imm);
+			if (rh != 7)
+				*destreg = destval;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x84
+****************************************************************************/
+void x86emuOp_test_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("TEST\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		test_byte(destval, *srcreg);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		test_byte(destval, *srcreg);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		test_byte(destval, *srcreg);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		test_byte(*destreg, *srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x85
+****************************************************************************/
+void x86emuOp_test_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("TEST\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_long(destval, *srcreg);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_word(destval, *srcreg);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_long(destval, *srcreg);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_word(destval, *srcreg);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_long(destval, *srcreg);
+		} else {
+			u16 destval;
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_word(destval, *srcreg);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_long(*destreg, *srcreg);
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			test_word(*destreg, *srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x86
+****************************************************************************/
+void x86emuOp_xchg_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+	u8 destval;
+	u8 tmp;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XCHG\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		tmp = *srcreg;
+		*srcreg = destval;
+		destval = tmp;
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		tmp = *srcreg;
+		*srcreg = destval;
+		destval = tmp;
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		destval = fetch_data_byte(destoffset);
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		tmp = *srcreg;
+		*srcreg = destval;
+		destval = tmp;
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		tmp = *srcreg;
+		*srcreg = *destreg;
+		*destreg = tmp;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x87
+****************************************************************************/
+void x86emuOp_xchg_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XCHG\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+			u32 destval, tmp;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = destval;
+			destval = tmp;
+			store_data_long(destoffset, destval);
+		} else {
+			u16 *srcreg;
+			u16 destval, tmp;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = destval;
+			destval = tmp;
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+			u32 destval, tmp;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = destval;
+			destval = tmp;
+			store_data_long(destoffset, destval);
+		} else {
+			u16 *srcreg;
+			u16 destval, tmp;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = destval;
+			destval = tmp;
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+			u32 destval, tmp;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_long(destoffset);
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = destval;
+			destval = tmp;
+			store_data_long(destoffset, destval);
+		} else {
+			u16 *srcreg;
+			u16 destval, tmp;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			destval = fetch_data_word(destoffset);
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = destval;
+			destval = tmp;
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+			u32 tmp;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = *destreg;
+			*destreg = tmp;
+		} else {
+			u16 *destreg, *srcreg;
+			u16 tmp;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			tmp = *srcreg;
+			*srcreg = *destreg;
+			*destreg = tmp;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x88
+****************************************************************************/
+void x86emuOp_mov_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, *srcreg);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, *srcreg);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, *srcreg);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = *srcreg;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x89
+****************************************************************************/
+void x86emuOp_mov_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			store_data_long(destoffset, *srcreg);
+		} else {
+			u16 *srcreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			store_data_word(destoffset, *srcreg);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			store_data_long(destoffset, *srcreg);
+		} else {
+			u16 *srcreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			store_data_word(destoffset, *srcreg);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			store_data_long(destoffset, *srcreg);
+		} else {
+			u16 *srcreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			store_data_word(destoffset, *srcreg);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = *srcreg;
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = *srcreg;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8a
+****************************************************************************/
+void x86emuOp_mov_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg, *srcreg;
+	uint srcoffset;
+	u8 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 1:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 2:
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_byte(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = *srcreg;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8b
+****************************************************************************/
+void x86emuOp_mov_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = *srcreg;
+		} else {
+			u16 *destreg, *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = *srcreg;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8c
+****************************************************************************/
+void x86emuOp_mov_word_RM_SR(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u16 *destreg, *srcreg;
+	uint destoffset;
+	u16 destval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",");
+		srcreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = *srcreg;
+		store_data_word(destoffset, destval);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",");
+		srcreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = *srcreg;
+		store_data_word(destoffset, destval);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",");
+		srcreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = *srcreg;
+		store_data_word(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF(",");
+		srcreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = *srcreg;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8d
+****************************************************************************/
+void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u16 *srcreg;
+	uint destoffset;
+
+/*
+ * TODO: Need to handle address size prefix!
+ *
+ * lea  eax,[eax+ebx*2] ??
+ */
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LEA\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		srcreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*srcreg = (u16) destoffset;
+		break;
+	case 1:
+		srcreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*srcreg = (u16) destoffset;
+		break;
+	case 2:
+		srcreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*srcreg = (u16) destoffset;
+		break;
+	case 3:		/* register to register */
+		/* undefined.  Do nothing. */
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8e
+****************************************************************************/
+void x86emuOp_mov_word_SR_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u16 *destreg, *srcreg;
+	uint srcoffset;
+	u16 srcval;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_word(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 1:
+		destreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_word(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 2:
+		destreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_word(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 3:		/* register to register */
+		destreg = decode_rm_seg_register(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = *srcreg;
+		break;
+	}
+	/*
+	 * Clean up, and reset all the R_xSP pointers to the correct
+	 * locations.  This is about 3x too much overhead (doing all the
+	 * segreg ptrs when only one is needed, but this instruction
+	 * *cannot* be that common, and this isn't too much work anyway.
+	 */
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8f
+****************************************************************************/
+void x86emuOp_pop_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("POP\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	if (rh != 0) {
+		DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n");
+		HALT_SYS();
+	}
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = pop_long();
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = pop_word();
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = pop_long();
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = pop_word();
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = pop_long();
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			destval = pop_word();
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = pop_long();
+		} else {
+			u16 *destreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = pop_word();
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x90
+****************************************************************************/
+void x86emuOp_nop(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("NOP\n");
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x91
+****************************************************************************/
+void x86emuOp_xchg_word_AX_CX(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,ECX\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,CX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_ECX;
+		M.x86.R_ECX = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_CX;
+		M.x86.R_CX = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x92
+****************************************************************************/
+void x86emuOp_xchg_word_AX_DX(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,EDX\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,DX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_EDX;
+		M.x86.R_EDX = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_DX;
+		M.x86.R_DX = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x93
+****************************************************************************/
+void x86emuOp_xchg_word_AX_BX(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,EBX\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,BX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_EBX;
+		M.x86.R_EBX = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_BX;
+		M.x86.R_BX = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x94
+****************************************************************************/
+void x86emuOp_xchg_word_AX_SP(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,ESP\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,SP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_ESP;
+		M.x86.R_ESP = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_SP;
+		M.x86.R_SP = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x95
+****************************************************************************/
+void x86emuOp_xchg_word_AX_BP(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,EBP\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,BP\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_EBP;
+		M.x86.R_EBP = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_BP;
+		M.x86.R_BP = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x96
+****************************************************************************/
+void x86emuOp_xchg_word_AX_SI(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,ESI\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,SI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_ESI;
+		M.x86.R_ESI = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_SI;
+		M.x86.R_SI = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x97
+****************************************************************************/
+void x86emuOp_xchg_word_AX_DI(u8 X86EMU_UNUSED(op1))
+{
+	u32 tmp;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("XCHG\tEAX,EDI\n");
+	} else {
+		DECODE_PRINTF("XCHG\tAX,DI\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		tmp = M.x86.R_EAX;
+		M.x86.R_EAX = M.x86.R_EDI;
+		M.x86.R_EDI = tmp;
+	} else {
+		tmp = M.x86.R_AX;
+		M.x86.R_AX = M.x86.R_DI;
+		M.x86.R_DI = (u16) tmp;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x98
+****************************************************************************/
+void x86emuOp_cbw(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("CWDE\n");
+	} else {
+		DECODE_PRINTF("CBW\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		if (M.x86.R_AX & 0x8000) {
+			M.x86.R_EAX |= 0xffff0000;
+		} else {
+			M.x86.R_EAX &= 0x0000ffff;
+		}
+	} else {
+		if (M.x86.R_AL & 0x80) {
+			M.x86.R_AH = 0xff;
+		} else {
+			M.x86.R_AH = 0x0;
+		}
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x99
+****************************************************************************/
+void x86emuOp_cwd(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("CDQ\n");
+	} else {
+		DECODE_PRINTF("CWD\n");
+	}
+	DECODE_PRINTF("CWD\n");
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		if (M.x86.R_EAX & 0x80000000) {
+			M.x86.R_EDX = 0xffffffff;
+		} else {
+			M.x86.R_EDX = 0x0;
+		}
+	} else {
+		if (M.x86.R_AX & 0x8000) {
+			M.x86.R_DX = 0xffff;
+		} else {
+			M.x86.R_DX = 0x0;
+		}
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9a
+****************************************************************************/
+void x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 farseg, faroff;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CALL\t");
+	faroff = fetch_word_imm();
+	farseg = fetch_word_imm();
+	DECODE_PRINTF2("%04x:", farseg);
+	DECODE_PRINTF2("%04x\n", faroff);
+	CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, farseg, faroff, "FAR ");
+
+	/* XXX
+	 * 
+	 * Hooked interrupt vectors calling into our "BIOS" will cause
+	 * problems unless all intersegment stuff is checked for BIOS
+	 * access.  Check needed here.  For moment, let it alone.
+	 */
+	TRACE_AND_STEP();
+	push_word(M.x86.R_CS);
+	M.x86.R_CS = farseg;
+	push_word(M.x86.R_IP);
+	M.x86.R_IP = faroff;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9b
+****************************************************************************/
+void x86emuOp_wait(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("WAIT");
+	TRACE_AND_STEP();
+	/* NADA.  */
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9c
+****************************************************************************/
+void x86emuOp_pushf_word(u8 X86EMU_UNUSED(op1))
+{
+	u32 flags;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("PUSHFD\n");
+	} else {
+		DECODE_PRINTF("PUSHF\n");
+	}
+	TRACE_AND_STEP();
+
+	/* clear out *all* bits not representing flags, and turn on real bits */
+	flags = (M.x86.R_EFLG & F_MSK) | F_ALWAYS_ON;
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		push_long(flags);
+	} else {
+		push_word((u16) flags);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9d
+****************************************************************************/
+void x86emuOp_popf_word(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("POPFD\n");
+	} else {
+		DECODE_PRINTF("POPF\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EFLG = pop_long();
+	} else {
+		M.x86.R_FLG = pop_word();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9e
+****************************************************************************/
+void x86emuOp_sahf(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("SAHF\n");
+	TRACE_AND_STEP();
+	/* clear the lower bits of the flag register */
+	M.x86.R_FLG &= 0xffffff00;
+	/* or in the AH register into the flags register */
+	M.x86.R_FLG |= M.x86.R_AH;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9f
+****************************************************************************/
+void x86emuOp_lahf(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("LAHF\n");
+	TRACE_AND_STEP();
+	M.x86.R_AH = (u8) (M.x86.R_FLG & 0xff);
+	/*undocumented TC++ behavior??? Nope.  It's documented, but
+	   you have too look real hard to notice it. */
+	M.x86.R_AH |= 0x2;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa0
+****************************************************************************/
+void x86emuOp_mov_AL_M_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 offset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tAL,");
+	offset = fetch_word_imm();
+	DECODE_PRINTF2("[%04x]\n", offset);
+	TRACE_AND_STEP();
+	M.x86.R_AL = fetch_data_byte(offset);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa1
+****************************************************************************/
+void x86emuOp_mov_AX_M_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 offset;
+
+	START_OF_INSTR();
+	offset = fetch_word_imm();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF2("MOV\tEAX,[%04x]\n", offset);
+	} else {
+		DECODE_PRINTF2("MOV\tAX,[%04x]\n", offset);
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = fetch_data_long(offset);
+	} else {
+		M.x86.R_AX = fetch_data_word(offset);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa2
+****************************************************************************/
+void x86emuOp_mov_M_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 offset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	offset = fetch_word_imm();
+	DECODE_PRINTF2("[%04x],AL\n", offset);
+	TRACE_AND_STEP();
+	store_data_byte(offset, M.x86.R_AL);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa3
+****************************************************************************/
+void x86emuOp_mov_M_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 offset;
+
+	START_OF_INSTR();
+	offset = fetch_word_imm();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF2("MOV\t[%04x],EAX\n", offset);
+	} else {
+		DECODE_PRINTF2("MOV\t[%04x],AX\n", offset);
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		store_data_long(offset, M.x86.R_EAX);
+	} else {
+		store_data_word(offset, M.x86.R_AX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa4
+****************************************************************************/
+void x86emuOp_movs_byte(u8 X86EMU_UNUSED(op1))
+{
+	u8 val;
+	u32 count;
+	int inc;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOVS\tBYTE\n");
+	if (ACCESS_FLAG(F_DF))	/* down */
+		inc = -1;
+	else
+		inc = 1;
+	TRACE_AND_STEP();
+	count = 1;
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* move them until CX is ZERO. */
+		count = M.x86.R_CX;
+		M.x86.R_CX = 0;
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	}
+	while (count--) {
+		val = fetch_data_byte(M.x86.R_SI);
+		store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, val);
+		M.x86.R_SI += inc;
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa5
+****************************************************************************/
+void x86emuOp_movs_word(u8 X86EMU_UNUSED(op1))
+{
+	u32 val;
+	int inc;
+	u32 count;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOVS\tDWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -4;
+		else
+			inc = 4;
+	} else {
+		DECODE_PRINTF("MOVS\tWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -2;
+		else
+			inc = 2;
+	}
+	TRACE_AND_STEP();
+	count = 1;
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* move them until CX is ZERO. */
+		count = M.x86.R_CX;
+		M.x86.R_CX = 0;
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	}
+	while (count--) {
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			val = fetch_data_long(M.x86.R_SI);
+			store_data_long_abs(M.x86.R_ES, M.x86.R_DI, val);
+		} else {
+			val = fetch_data_word(M.x86.R_SI);
+			store_data_word_abs(M.x86.R_ES, M.x86.R_DI, (u16) val);
+		}
+		M.x86.R_SI += inc;
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa6
+****************************************************************************/
+void x86emuOp_cmps_byte(u8 X86EMU_UNUSED(op1))
+{
+	s8 val1, val2;
+	int inc;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CMPS\tBYTE\n");
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_DF))	/* down */
+		inc = -1;
+	else
+		inc = 1;
+
+	if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+		/* REPE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			val1 = fetch_data_byte(M.x86.R_SI);
+			val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_byte(val1, val2);
+			M.x86.R_CX -= 1;
+			M.x86.R_SI += inc;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF) == 0)
+				break;
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+	} else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+		/* REPNE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			val1 = fetch_data_byte(M.x86.R_SI);
+			val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_byte(val1, val2);
+			M.x86.R_CX -= 1;
+			M.x86.R_SI += inc;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF))
+				break;	/* zero flag set means equal */
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+	} else {
+		val1 = fetch_data_byte(M.x86.R_SI);
+		val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_byte(val1, val2);
+		M.x86.R_SI += inc;
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa7
+****************************************************************************/
+void x86emuOp_cmps_word(u8 X86EMU_UNUSED(op1))
+{
+	u32 val1, val2;
+	int inc;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("CMPS\tDWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -4;
+		else
+			inc = 4;
+	} else {
+		DECODE_PRINTF("CMPS\tWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -2;
+		else
+			inc = 2;
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+		/* REPE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				val1 = fetch_data_long(M.x86.R_SI);
+				val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_long(val1, val2);
+			} else {
+				val1 = fetch_data_word(M.x86.R_SI);
+				val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_word((u16) val1, (u16) val2);
+			}
+			M.x86.R_CX -= 1;
+			M.x86.R_SI += inc;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF) == 0)
+				break;
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+	} else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+		/* REPNE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				val1 = fetch_data_long(M.x86.R_SI);
+				val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_long(val1, val2);
+			} else {
+				val1 = fetch_data_word(M.x86.R_SI);
+				val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_word((u16) val1, (u16) val2);
+			}
+			M.x86.R_CX -= 1;
+			M.x86.R_SI += inc;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF))
+				break;	/* zero flag set means equal */
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+	} else {
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			val1 = fetch_data_long(M.x86.R_SI);
+			val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_long(val1, val2);
+		} else {
+			val1 = fetch_data_word(M.x86.R_SI);
+			val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_word((u16) val1, (u16) val2);
+		}
+		M.x86.R_SI += inc;
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa8
+****************************************************************************/
+void x86emuOp_test_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("TEST\tAL,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%04x\n", imm);
+	TRACE_AND_STEP();
+	test_byte(M.x86.R_AL, (u8) imm);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa9
+****************************************************************************/
+void x86emuOp_test_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("TEST\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("TEST\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		test_long(M.x86.R_EAX, srcval);
+	} else {
+		test_word(M.x86.R_AX, (u16) srcval);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xaa
+****************************************************************************/
+void x86emuOp_stos_byte(u8 X86EMU_UNUSED(op1))
+{
+	int inc;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("STOS\tBYTE\n");
+	if (ACCESS_FLAG(F_DF))	/* down */
+		inc = -1;
+	else
+		inc = 1;
+	TRACE_AND_STEP();
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL);
+			M.x86.R_CX -= 1;
+			M.x86.R_DI += inc;
+		}
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	} else {
+		store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL);
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xab
+****************************************************************************/
+void x86emuOp_stos_word(u8 X86EMU_UNUSED(op1))
+{
+	int inc;
+	u32 count;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("STOS\tDWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -4;
+		else
+			inc = 4;
+	} else {
+		DECODE_PRINTF("STOS\tWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -2;
+		else
+			inc = 2;
+	}
+	TRACE_AND_STEP();
+	count = 1;
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* move them until CX is ZERO. */
+		count = M.x86.R_CX;
+		M.x86.R_CX = 0;
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	}
+	while (count--) {
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			store_data_long_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_EAX);
+		} else {
+			store_data_word_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AX);
+		}
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xac
+****************************************************************************/
+void x86emuOp_lods_byte(u8 X86EMU_UNUSED(op1))
+{
+	int inc;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LODS\tBYTE\n");
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_DF))	/* down */
+		inc = -1;
+	else
+		inc = 1;
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			M.x86.R_AL = fetch_data_byte(M.x86.R_SI);
+			M.x86.R_CX -= 1;
+			M.x86.R_SI += inc;
+		}
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	} else {
+		M.x86.R_AL = fetch_data_byte(M.x86.R_SI);
+		M.x86.R_SI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xad
+****************************************************************************/
+void x86emuOp_lods_word(u8 X86EMU_UNUSED(op1))
+{
+	int inc;
+	u32 count;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("LODS\tDWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -4;
+		else
+			inc = 4;
+	} else {
+		DECODE_PRINTF("LODS\tWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -2;
+		else
+			inc = 2;
+	}
+	TRACE_AND_STEP();
+	count = 1;
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* move them until CX is ZERO. */
+		count = M.x86.R_CX;
+		M.x86.R_CX = 0;
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	}
+	while (count--) {
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			M.x86.R_EAX = fetch_data_long(M.x86.R_SI);
+		} else {
+			M.x86.R_AX = fetch_data_word(M.x86.R_SI);
+		}
+		M.x86.R_SI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xae
+****************************************************************************/
+void x86emuOp_scas_byte(u8 X86EMU_UNUSED(op1))
+{
+	s8 val2;
+	int inc;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SCAS\tBYTE\n");
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_DF))	/* down */
+		inc = -1;
+	else
+		inc = 1;
+	if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+		/* REPE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_byte(M.x86.R_AL, val2);
+			M.x86.R_CX -= 1;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF) == 0)
+				break;
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+	} else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+		/* REPNE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_byte(M.x86.R_AL, val2);
+			M.x86.R_CX -= 1;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF))
+				break;	/* zero flag set means equal */
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+	} else {
+		val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_byte(M.x86.R_AL, val2);
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xaf
+****************************************************************************/
+void x86emuOp_scas_word(u8 X86EMU_UNUSED(op1))
+{
+	int inc;
+	u32 val;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("SCAS\tDWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -4;
+		else
+			inc = 4;
+	} else {
+		DECODE_PRINTF("SCAS\tWORD\n");
+		if (ACCESS_FLAG(F_DF))	/* down */
+			inc = -2;
+		else
+			inc = 2;
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+		/* REPE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_long(M.x86.R_EAX, val);
+			} else {
+				val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_word(M.x86.R_AX, (u16) val);
+			}
+			M.x86.R_CX -= 1;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF) == 0)
+				break;
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+	} else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+		/* REPNE  */
+		/* move them until CX is ZERO. */
+		while (M.x86.R_CX != 0) {
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_long(M.x86.R_EAX, val);
+			} else {
+				val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+				cmp_word(M.x86.R_AX, (u16) val);
+			}
+			M.x86.R_CX -= 1;
+			M.x86.R_DI += inc;
+			if (ACCESS_FLAG(F_ZF))
+				break;	/* zero flag set means equal */
+		}
+		M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+	} else {
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_long(M.x86.R_EAX, val);
+		} else {
+			val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+			cmp_word(M.x86.R_AX, (u16) val);
+		}
+		M.x86.R_DI += inc;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb0
+****************************************************************************/
+void x86emuOp_mov_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tAL,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_AL = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb1
+****************************************************************************/
+void x86emuOp_mov_byte_CL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tCL,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_CL = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb2
+****************************************************************************/
+void x86emuOp_mov_byte_DL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tDL,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_DL = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb3
+****************************************************************************/
+void x86emuOp_mov_byte_BL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tBL,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_BL = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb4
+****************************************************************************/
+void x86emuOp_mov_byte_AH_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tAH,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_AH = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb5
+****************************************************************************/
+void x86emuOp_mov_byte_CH_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tCH,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_CH = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb6
+****************************************************************************/
+void x86emuOp_mov_byte_DH_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tDH,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_DH = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb7
+****************************************************************************/
+void x86emuOp_mov_byte_BH_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\tBH,");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	M.x86.R_BH = imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb8
+****************************************************************************/
+void x86emuOp_mov_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tEAX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tAX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = srcval;
+	} else {
+		M.x86.R_AX = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb9
+****************************************************************************/
+void x86emuOp_mov_word_CX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tECX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tCX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ECX = srcval;
+	} else {
+		M.x86.R_CX = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xba
+****************************************************************************/
+void x86emuOp_mov_word_DX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tEDX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tDX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDX = srcval;
+	} else {
+		M.x86.R_DX = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbb
+****************************************************************************/
+void x86emuOp_mov_word_BX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tEBX,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tBX,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBX = srcval;
+	} else {
+		M.x86.R_BX = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbc
+****************************************************************************/
+void x86emuOp_mov_word_SP_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tESP,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tSP,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESP = srcval;
+	} else {
+		M.x86.R_SP = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbd
+****************************************************************************/
+void x86emuOp_mov_word_BP_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tEBP,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tBP,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EBP = srcval;
+	} else {
+		M.x86.R_BP = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbe
+****************************************************************************/
+void x86emuOp_mov_word_SI_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tESI,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tSI,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_ESI = srcval;
+	} else {
+		M.x86.R_SI = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbf
+****************************************************************************/
+void x86emuOp_mov_word_DI_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u32 srcval;
+
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("MOV\tEDI,");
+		srcval = fetch_long_imm();
+	} else {
+		DECODE_PRINTF("MOV\tDI,");
+		srcval = fetch_word_imm();
+	}
+	DECODE_PRINTF2("%x\n", srcval);
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EDI = srcval;
+	} else {
+		M.x86.R_DI = (u16) srcval;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/* used by opcodes c0, d0, and d2. */
+static u8(*opcD0_byte_operation[]) (u8 d, u8 s) = {
+	rol_byte, ror_byte, rcl_byte, rcr_byte, shl_byte, shr_byte, shl_byte,	/* sal_byte === shl_byte  by definition */
+sar_byte,};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc0
+****************************************************************************/
+void x86emuOp_opcC0_byte_RM_MEM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 destval;
+	u8 amt;
+
+	/*
+	 * Yet another weirdo special case instruction format.  Part of
+	 * the opcode held below in "RH".  Doubly nested case would
+	 * result, except that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ROL\t");
+			break;
+		case 1:
+			DECODE_PRINTF("ROR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("RCL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("RCR\t");
+			break;
+		case 4:
+			DECODE_PRINTF("SHL\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SHR\t");
+			break;
+		case 6:
+			DECODE_PRINTF("SAL\t");
+			break;
+		case 7:
+			DECODE_PRINTF("SAR\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		amt = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", amt);
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, amt);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		amt = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", amt);
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, amt);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		amt = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", amt);
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, amt);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		amt = fetch_byte_imm();
+		DECODE_PRINTF2(",%x\n", amt);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (*destreg, amt);
+		*destreg = destval;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/* used by opcodes c1, d1, and d3. */
+static u16(*opcD1_word_operation[]) (u16 s, u8 d) = {
+	rol_word, ror_word, rcl_word, rcr_word, shl_word, shr_word, shl_word,	/* sal_byte === shl_byte  by definition */
+sar_word,};
+
+/* used by opcodes c1, d1, and d3. */
+static u32(*opcD1_long_operation[]) (u32 s, u8 d) = {
+	rol_long, ror_long, rcl_long, rcr_long, shl_long, shr_long, shl_long,	/* sal_byte === shl_byte  by definition */
+sar_long,};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc1
+****************************************************************************/
+void x86emuOp_opcC1_word_RM_MEM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 amt;
+
+	/*
+	 * Yet another weirdo special case instruction format.  Part of
+	 * the opcode held below in "RH".  Doubly nested case would
+	 * result, except that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ROL\t");
+			break;
+		case 1:
+			DECODE_PRINTF("ROR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("RCL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("RCR\t");
+			break;
+		case 4:
+			DECODE_PRINTF("SHL\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SHR\t");
+			break;
+		case 6:
+			DECODE_PRINTF("SAL\t");
+			break;
+		case 7:
+			DECODE_PRINTF("SAR\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, amt);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, amt);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, amt);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, amt);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, amt);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, amt);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			TRACE_AND_STEP();
+			*destreg = (*opcD1_long_operation[rh]) (*destreg, amt);
+		} else {
+			u16 *destreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			amt = fetch_byte_imm();
+			DECODE_PRINTF2(",%x\n", amt);
+			TRACE_AND_STEP();
+			*destreg = (*opcD1_word_operation[rh]) (*destreg, amt);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc2
+****************************************************************************/
+void x86emuOp_ret_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("RET\t");
+	imm = fetch_word_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	RETURN_TRACE("RET", M.x86.saved_cs, M.x86.saved_ip);
+	TRACE_AND_STEP();
+	M.x86.R_IP = pop_word();
+	M.x86.R_SP += imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc3
+****************************************************************************/
+void x86emuOp_ret_near(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("RET\n");
+	RETURN_TRACE("RET", M.x86.saved_cs, M.x86.saved_ip);
+	TRACE_AND_STEP();
+	M.x86.R_IP = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc4
+****************************************************************************/
+void x86emuOp_les_R_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rh, rl;
+	u16 *dstreg;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LES\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_ES = fetch_data_word(srcoffset + 2);
+		break;
+	case 1:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_ES = fetch_data_word(srcoffset + 2);
+		break;
+	case 2:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_ES = fetch_data_word(srcoffset + 2);
+		break;
+	case 3:		/* register to register */
+		/* UNDEFINED! */
+		TRACE_AND_STEP();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc5
+****************************************************************************/
+void x86emuOp_lds_R_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rh, rl;
+	u16 *dstreg;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LDS\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_DS = fetch_data_word(srcoffset + 2);
+		break;
+	case 1:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_DS = fetch_data_word(srcoffset + 2);
+		break;
+	case 2:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_DS = fetch_data_word(srcoffset + 2);
+		break;
+	case 3:		/* register to register */
+		/* UNDEFINED! */
+		TRACE_AND_STEP();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc6
+****************************************************************************/
+void x86emuOp_mov_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	if (rh != 0) {
+		DECODE_PRINTF("ILLEGAL DECODE OF OPCODE c6\n");
+		HALT_SYS();
+	}
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%2x\n", imm);
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, imm);
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%2x\n", imm);
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, imm);
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%2x\n", imm);
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, imm);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		imm = fetch_byte_imm();
+		DECODE_PRINTF2(",%2x\n", imm);
+		TRACE_AND_STEP();
+		*destreg = imm;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc7
+****************************************************************************/
+void x86emuOp_mov_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOV\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	if (rh != 0) {
+		DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n");
+		HALT_SYS();
+	}
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			store_data_long(destoffset, imm);
+		} else {
+			u16 imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			store_data_word(destoffset, imm);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			store_data_long(destoffset, imm);
+		} else {
+			u16 imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			store_data_word(destoffset, imm);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 imm;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			store_data_long(destoffset, imm);
+		} else {
+			u16 imm;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			store_data_word(destoffset, imm);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 imm;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			imm = fetch_long_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			*destreg = imm;
+		} else {
+			u16 *destreg;
+			u16 imm;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			imm = fetch_word_imm();
+			DECODE_PRINTF2(",%x\n", imm);
+			TRACE_AND_STEP();
+			*destreg = imm;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc8
+****************************************************************************/
+void x86emuOp_enter(u8 X86EMU_UNUSED(op1))
+{
+	u16 local, frame_pointer;
+	u8 nesting;
+	int i;
+
+	START_OF_INSTR();
+	local = fetch_word_imm();
+	nesting = fetch_byte_imm();
+	DECODE_PRINTF2("ENTER %x\n", local);
+	DECODE_PRINTF2(",%x\n", nesting);
+	TRACE_AND_STEP();
+	push_word(M.x86.R_BP);
+	frame_pointer = M.x86.R_SP;
+	if (nesting > 0) {
+		for (i = 1; i < nesting; i++) {
+			M.x86.R_BP -= 2;
+			push_word(fetch_data_word_abs(M.x86.R_SS, M.x86.R_BP));
+		}
+		push_word(frame_pointer);
+	}
+	M.x86.R_BP = frame_pointer;
+	M.x86.R_SP = (u16) (M.x86.R_SP - local);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc9
+****************************************************************************/
+void x86emuOp_leave(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("LEAVE\n");
+	TRACE_AND_STEP();
+	M.x86.R_SP = M.x86.R_BP;
+	M.x86.R_BP = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xca
+****************************************************************************/
+void x86emuOp_ret_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 imm;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("RETF\t");
+	imm = fetch_word_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	RETURN_TRACE("RETF", M.x86.saved_cs, M.x86.saved_ip);
+	TRACE_AND_STEP();
+	M.x86.R_IP = pop_word();
+	M.x86.R_CS = pop_word();
+	M.x86.R_SP += imm;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcb
+****************************************************************************/
+void x86emuOp_ret_far(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("RETF\n");
+	RETURN_TRACE("RETF", M.x86.saved_cs, M.x86.saved_ip);
+	TRACE_AND_STEP();
+	M.x86.R_IP = pop_word();
+	M.x86.R_CS = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcc
+****************************************************************************/
+void x86emuOp_int3(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("INT 3\n");
+	TRACE_AND_STEP();
+	if (_X86EMU_intrTab[3]) {
+		(*_X86EMU_intrTab[3]) (3);
+	} else {
+		push_word((u16) M.x86.R_FLG);
+		CLEAR_FLAG(F_IF);
+		CLEAR_FLAG(F_TF);
+		push_word(M.x86.R_CS);
+		M.x86.R_CS = mem_access_word(3 * 4 + 2);
+		push_word(M.x86.R_IP);
+		M.x86.R_IP = mem_access_word(3 * 4);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcd
+****************************************************************************/
+void x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 intnum;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("INT\t");
+	intnum = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", intnum);
+	TRACE_AND_STEP();
+	if (_X86EMU_intrTab[intnum]) {
+		(*_X86EMU_intrTab[intnum]) (intnum);
+	} else {
+		push_word((u16) M.x86.R_FLG);
+		CLEAR_FLAG(F_IF);
+		CLEAR_FLAG(F_TF);
+		push_word(M.x86.R_CS);
+		M.x86.R_CS = mem_access_word(intnum * 4 + 2);
+		push_word(M.x86.R_IP);
+		M.x86.R_IP = mem_access_word(intnum * 4);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xce
+****************************************************************************/
+void x86emuOp_into(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("INTO\n");
+	TRACE_AND_STEP();
+	if (ACCESS_FLAG(F_OF)) {
+		if (_X86EMU_intrTab[4]) {
+			(*_X86EMU_intrTab[4]) (4);
+		} else {
+			push_word((u16) M.x86.R_FLG);
+			CLEAR_FLAG(F_IF);
+			CLEAR_FLAG(F_TF);
+			push_word(M.x86.R_CS);
+			M.x86.R_CS = mem_access_word(4 * 4 + 2);
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = mem_access_word(4 * 4);
+		}
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcf
+****************************************************************************/
+void x86emuOp_iret(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("IRET\n");
+
+	TRACE_AND_STEP();
+
+	M.x86.R_IP = pop_word();
+	M.x86.R_CS = pop_word();
+	M.x86.R_FLG = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd0
+****************************************************************************/
+void x86emuOp_opcD0_byte_RM_1(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 destval;
+
+	/*
+	 * Yet another weirdo special case instruction format.  Part of
+	 * the opcode held below in "RH".  Doubly nested case would
+	 * result, except that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the
+		   above test is done twice. */
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ROL\t");
+			break;
+		case 1:
+			DECODE_PRINTF("ROR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("RCL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("RCR\t");
+			break;
+		case 4:
+			DECODE_PRINTF("SHL\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SHR\t");
+			break;
+		case 6:
+			DECODE_PRINTF("SAL\t");
+			break;
+		case 7:
+			DECODE_PRINTF("SAR\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",1\n");
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, 1);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",1\n");
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, 1);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",1\n");
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, 1);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",1\n");
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (*destreg, 1);
+		*destreg = destval;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd1
+****************************************************************************/
+void x86emuOp_opcD1_word_RM_1(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	/*
+	 * Yet another weirdo special case instruction format.  Part of
+	 * the opcode held below in "RH".  Doubly nested case would
+	 * result, except that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the
+		   above test is done twice. */
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ROL\t");
+			break;
+		case 1:
+			DECODE_PRINTF("ROR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("RCL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("RCR\t");
+			break;
+		case 4:
+			DECODE_PRINTF("SHL\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SHR\t");
+			break;
+		case 6:
+			DECODE_PRINTF("SAL\t");
+			break;
+		case 7:
+			DECODE_PRINTF("SAR\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",1\n");
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, 1);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",1\n");
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, 1);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",1\n");
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, 1);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",1\n");
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, 1);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",1\n");
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, 1);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("BYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",1\n");
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, 1);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *destreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",1\n");
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (*destreg, 1);
+			*destreg = destval;
+		} else {
+			u16 destval;
+			u16 *destreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",1\n");
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (*destreg, 1);
+			*destreg = destval;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd2
+****************************************************************************/
+void x86emuOp_opcD2_byte_RM_CL(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 destval;
+	u8 amt;
+
+	/*
+	 * Yet another weirdo special case instruction format.  Part of
+	 * the opcode held below in "RH".  Doubly nested case would
+	 * result, except that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ROL\t");
+			break;
+		case 1:
+			DECODE_PRINTF("ROR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("RCL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("RCR\t");
+			break;
+		case 4:
+			DECODE_PRINTF("SHL\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SHR\t");
+			break;
+		case 6:
+			DECODE_PRINTF("SAL\t");
+			break;
+		case 7:
+			DECODE_PRINTF("SAR\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	amt = M.x86.R_CL;
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF(",CL\n");
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, amt);
+		store_data_byte(destoffset, destval);
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF(",CL\n");
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, amt);
+		store_data_byte(destoffset, destval);
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF(",CL\n");
+		destval = fetch_data_byte(destoffset);
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (destval, amt);
+		store_data_byte(destoffset, destval);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF(",CL\n");
+		TRACE_AND_STEP();
+		destval = (*opcD0_byte_operation[rh]) (*destreg, amt);
+		*destreg = destval;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd3
+****************************************************************************/
+void x86emuOp_opcD3_word_RM_CL(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 amt;
+
+	/*
+	 * Yet another weirdo special case instruction format.  Part of
+	 * the opcode held below in "RH".  Doubly nested case would
+	 * result, except that the decoded instruction
+	 */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("ROL\t");
+			break;
+		case 1:
+			DECODE_PRINTF("ROR\t");
+			break;
+		case 2:
+			DECODE_PRINTF("RCL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("RCR\t");
+			break;
+		case 4:
+			DECODE_PRINTF("SHL\t");
+			break;
+		case 5:
+			DECODE_PRINTF("SHR\t");
+			break;
+		case 6:
+			DECODE_PRINTF("SAL\t");
+			break;
+		case 7:
+			DECODE_PRINTF("SAR\t");
+			break;
+		}
+	}
+#endif
+	/* know operation, decode the mod byte to find the addressing
+	   mode. */
+	amt = M.x86.R_CL;
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",CL\n");
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, amt);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",CL\n");
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, amt);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",CL\n");
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, amt);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",CL\n");
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, amt);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+
+			DECODE_PRINTF("DWORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",CL\n");
+			destval = fetch_data_long(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_long_operation[rh]) (destval, amt);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+
+			DECODE_PRINTF("WORD PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",CL\n");
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			destval = (*opcD1_word_operation[rh]) (destval, amt);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			*destreg = (*opcD1_long_operation[rh]) (*destreg, amt);
+		} else {
+			u16 *destreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			*destreg = (*opcD1_word_operation[rh]) (*destreg, amt);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd4
+****************************************************************************/
+void x86emuOp_aam(u8 X86EMU_UNUSED(op1))
+{
+	u8 a;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AAM\n");
+	a = fetch_byte_imm();	/* this is a stupid encoding. */
+	if (a != 10) {
+		DECODE_PRINTF("ERROR DECODING AAM\n");
+		TRACE_REGS();
+		HALT_SYS();
+	}
+	TRACE_AND_STEP();
+	/* note the type change here --- returning AL and AH in AX. */
+	M.x86.R_AX = aam_word(M.x86.R_AL);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd5
+****************************************************************************/
+void x86emuOp_aad(u8 X86EMU_UNUSED(op1))
+{
+	u8 a;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("AAD\n");
+	a = fetch_byte_imm();
+	TRACE_AND_STEP();
+	M.x86.R_AX = aad_word(M.x86.R_AX);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/* opcode 0xd6 ILLEGAL OPCODE */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd7
+****************************************************************************/
+void x86emuOp_xlat(u8 X86EMU_UNUSED(op1))
+{
+	u16 addr;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("XLAT\n");
+	TRACE_AND_STEP();
+	addr = (u16) (M.x86.R_BX + (u8) M.x86.R_AL);
+	M.x86.R_AL = fetch_data_byte(addr);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/* instuctions  D8 .. DF are in i87_ops.c */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe0
+****************************************************************************/
+void x86emuOp_loopne(u8 X86EMU_UNUSED(op1))
+{
+	s16 ip;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LOOPNE\t");
+	ip = (s8) fetch_byte_imm();
+	ip += (s16) M.x86.R_IP;
+	DECODE_PRINTF2("%04x\n", ip);
+	TRACE_AND_STEP();
+	M.x86.R_CX -= 1;
+	if (M.x86.R_CX != 0 && !ACCESS_FLAG(F_ZF))	/* CX != 0 and !ZF */
+		M.x86.R_IP = ip;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe1
+****************************************************************************/
+void x86emuOp_loope(u8 X86EMU_UNUSED(op1))
+{
+	s16 ip;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LOOPE\t");
+	ip = (s8) fetch_byte_imm();
+	ip += (s16) M.x86.R_IP;
+	DECODE_PRINTF2("%04x\n", ip);
+	TRACE_AND_STEP();
+	M.x86.R_CX -= 1;
+	if (M.x86.R_CX != 0 && ACCESS_FLAG(F_ZF))	/* CX != 0 and ZF */
+		M.x86.R_IP = ip;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe2
+****************************************************************************/
+void x86emuOp_loop(u8 X86EMU_UNUSED(op1))
+{
+	s16 ip;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LOOP\t");
+	ip = (s8) fetch_byte_imm();
+	ip += (s16) M.x86.R_IP;
+	DECODE_PRINTF2("%04x\n", ip);
+	TRACE_AND_STEP();
+	M.x86.R_CX -= 1;
+	if (M.x86.R_CX != 0)
+		M.x86.R_IP = ip;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe3
+****************************************************************************/
+void x86emuOp_jcxz(u8 X86EMU_UNUSED(op1))
+{
+	u16 target;
+	s8 offset;
+
+	/* jump to byte offset if overflow flag is set */
+	START_OF_INSTR();
+	DECODE_PRINTF("JCXZ\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	if (M.x86.R_CX == 0)
+		M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe4
+****************************************************************************/
+void x86emuOp_in_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 port;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("IN\t");
+	port = (u8) fetch_byte_imm();
+	DECODE_PRINTF2("%x,AL\n", port);
+	TRACE_AND_STEP();
+	M.x86.R_AL = (*sys_inb) (port);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe5
+****************************************************************************/
+void x86emuOp_in_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u8 port;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("IN\t");
+	port = (u8) fetch_byte_imm();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF2("EAX,%x\n", port);
+	} else {
+		DECODE_PRINTF2("AX,%x\n", port);
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = (*sys_inl) (port);
+	} else {
+		M.x86.R_AX = (*sys_inw) (port);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe6
+****************************************************************************/
+void x86emuOp_out_byte_IMM_AL(u8 X86EMU_UNUSED(op1))
+{
+	u8 port;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OUT\t");
+	port = (u8) fetch_byte_imm();
+	DECODE_PRINTF2("%x,AL\n", port);
+	TRACE_AND_STEP();
+	(*sys_outb) (port, M.x86.R_AL);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe7
+****************************************************************************/
+void x86emuOp_out_word_IMM_AX(u8 X86EMU_UNUSED(op1))
+{
+	u8 port;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("OUT\t");
+	port = (u8) fetch_byte_imm();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF2("%x,EAX\n", port);
+	} else {
+		DECODE_PRINTF2("%x,AX\n", port);
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		(*sys_outl) (port, M.x86.R_EAX);
+	} else {
+		(*sys_outw) (port, M.x86.R_AX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe8
+****************************************************************************/
+void x86emuOp_call_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+	s16 ip;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("CALL\t");
+	ip = (s16) fetch_word_imm();
+	ip += (s16) M.x86.R_IP;	/* CHECK SIGN */
+	DECODE_PRINTF2("%04x\n", (u16) ip);
+	CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip, "");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_IP);
+	M.x86.R_IP = ip;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe9
+****************************************************************************/
+void x86emuOp_jump_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+	int ip;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("JMP\t");
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		ip = (s32) fetch_long_imm();
+		ip += (s16) M.x86.R_IP;
+		DECODE_PRINTF2("%04x\n", (u16) ip);
+	} else {
+		ip = (s16) fetch_word_imm();
+		ip += (s16) M.x86.R_IP;
+		DECODE_PRINTF2("%04x\n", (u16) ip);
+	}
+	TRACE_AND_STEP();
+	M.x86.R_IP = (u16) ip;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xea
+****************************************************************************/
+void x86emuOp_jump_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 cs, ip;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("JMP\tFAR ");
+	ip = fetch_word_imm();
+	cs = fetch_word_imm();
+	DECODE_PRINTF2("%04x:", cs);
+	DECODE_PRINTF2("%04x\n", ip);
+	TRACE_AND_STEP();
+	M.x86.R_IP = ip;
+	M.x86.R_CS = cs;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xeb
+****************************************************************************/
+void x86emuOp_jump_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+	u16 target;
+	s8 offset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("JMP\t");
+	offset = (s8) fetch_byte_imm();
+	target = (u16) (M.x86.R_IP + offset);
+	DECODE_PRINTF2("%x\n", target);
+	TRACE_AND_STEP();
+	M.x86.R_IP = target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xec
+****************************************************************************/
+void x86emuOp_in_byte_AL_DX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("IN\tAL,DX\n");
+	TRACE_AND_STEP();
+	M.x86.R_AL = (*sys_inb) (M.x86.R_DX);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xed
+****************************************************************************/
+void x86emuOp_in_word_AX_DX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("IN\tEAX,DX\n");
+	} else {
+		DECODE_PRINTF("IN\tAX,DX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		M.x86.R_EAX = (*sys_inl) (M.x86.R_DX);
+	} else {
+		M.x86.R_AX = (*sys_inw) (M.x86.R_DX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xee
+****************************************************************************/
+void x86emuOp_out_byte_DX_AL(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("OUT\tDX,AL\n");
+	TRACE_AND_STEP();
+	(*sys_outb) (M.x86.R_DX, M.x86.R_AL);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xef
+****************************************************************************/
+void x86emuOp_out_word_DX_AX(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("OUT\tDX,EAX\n");
+	} else {
+		DECODE_PRINTF("OUT\tDX,AX\n");
+	}
+	TRACE_AND_STEP();
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		(*sys_outl) (M.x86.R_DX, M.x86.R_EAX);
+	} else {
+		(*sys_outw) (M.x86.R_DX, M.x86.R_AX);
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf0
+****************************************************************************/
+void x86emuOp_lock(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("LOCK:\n");
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/*opcode 0xf1 ILLEGAL OPERATION */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf2
+****************************************************************************/
+void x86emuOp_repne(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("REPNE\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_PREFIX_REPNE;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf3
+****************************************************************************/
+void x86emuOp_repe(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("REPE\n");
+	TRACE_AND_STEP();
+	M.x86.mode |= SYSMODE_PREFIX_REPE;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf4
+****************************************************************************/
+void x86emuOp_halt(u8 X86EMU_UNUSED(op1))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("HALT\n");
+	TRACE_AND_STEP();
+	HALT_SYS();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf5
+****************************************************************************/
+void x86emuOp_cmc(u8 X86EMU_UNUSED(op1))
+{
+	/* complement the carry flag. */
+	START_OF_INSTR();
+	DECODE_PRINTF("CMC\n");
+	TRACE_AND_STEP();
+	TOGGLE_FLAG(F_CF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf6
+****************************************************************************/
+void x86emuOp_opcF6_byte_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	u8 *destreg;
+	uint destoffset;
+	u8 destval, srcval;
+
+	/* long, drawn out code follows.  Double switch for a total
+	   of 32 cases.  */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:		/* mod=00 */
+		switch (rh) {
+		case 0:	/* test byte imm */
+			DECODE_PRINTF("TEST\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			srcval = fetch_byte_imm();
+			DECODE_PRINTF2("%02x\n", srcval);
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			test_byte(destval, srcval);
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			DECODE_PRINTF("NOT\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = not_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 3:
+			DECODE_PRINTF("NEG\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = neg_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 4:
+			DECODE_PRINTF("MUL\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			mul_byte(destval);
+			break;
+		case 5:
+			DECODE_PRINTF("IMUL\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			imul_byte(destval);
+			break;
+		case 6:
+			DECODE_PRINTF("DIV\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			div_byte(destval);
+			break;
+		case 7:
+			DECODE_PRINTF("IDIV\tBYTE PTR ");
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			idiv_byte(destval);
+			break;
+		}
+		break;		/* end mod==00 */
+	case 1:		/* mod=01 */
+		switch (rh) {
+		case 0:	/* test byte imm */
+			DECODE_PRINTF("TEST\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			srcval = fetch_byte_imm();
+			DECODE_PRINTF2("%02x\n", srcval);
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			test_byte(destval, srcval);
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			DECODE_PRINTF("NOT\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = not_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 3:
+			DECODE_PRINTF("NEG\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = neg_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 4:
+			DECODE_PRINTF("MUL\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			mul_byte(destval);
+			break;
+		case 5:
+			DECODE_PRINTF("IMUL\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			imul_byte(destval);
+			break;
+		case 6:
+			DECODE_PRINTF("DIV\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			div_byte(destval);
+			break;
+		case 7:
+			DECODE_PRINTF("IDIV\tBYTE PTR ");
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			idiv_byte(destval);
+			break;
+		}
+		break;		/* end mod==01 */
+	case 2:		/* mod=10 */
+		switch (rh) {
+		case 0:	/* test byte imm */
+			DECODE_PRINTF("TEST\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			srcval = fetch_byte_imm();
+			DECODE_PRINTF2("%02x\n", srcval);
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			test_byte(destval, srcval);
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			DECODE_PRINTF("NOT\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = not_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 3:
+			DECODE_PRINTF("NEG\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = neg_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 4:
+			DECODE_PRINTF("MUL\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			mul_byte(destval);
+			break;
+		case 5:
+			DECODE_PRINTF("IMUL\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			imul_byte(destval);
+			break;
+		case 6:
+			DECODE_PRINTF("DIV\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			div_byte(destval);
+			break;
+		case 7:
+			DECODE_PRINTF("IDIV\tBYTE PTR ");
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF("\n");
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			idiv_byte(destval);
+			break;
+		}
+		break;		/* end mod==10 */
+	case 3:		/* mod=11 */
+		switch (rh) {
+		case 0:	/* test byte imm */
+			DECODE_PRINTF("TEST\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF(",");
+			srcval = fetch_byte_imm();
+			DECODE_PRINTF2("%02x\n", srcval);
+			TRACE_AND_STEP();
+			test_byte(*destreg, srcval);
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			DECODE_PRINTF("NOT\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = not_byte(*destreg);
+			break;
+		case 3:
+			DECODE_PRINTF("NEG\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = neg_byte(*destreg);
+			break;
+		case 4:
+			DECODE_PRINTF("MUL\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			mul_byte(*destreg);	/*!!!  */
+			break;
+		case 5:
+			DECODE_PRINTF("IMUL\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			imul_byte(*destreg);
+			break;
+		case 6:
+			DECODE_PRINTF("DIV\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			div_byte(*destreg);
+			break;
+		case 7:
+			DECODE_PRINTF("IDIV\t");
+			destreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			idiv_byte(*destreg);
+			break;
+		}
+		break;		/* end mod==11 */
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf7
+****************************************************************************/
+void x86emuOp_opcF7_word_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	/* long, drawn out code follows.  Double switch for a total
+	   of 32 cases.  */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:		/* mod=00 */
+		switch (rh) {
+		case 0:	/* test word imm */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval, srcval;
+
+				DECODE_PRINTF("TEST\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_long_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				test_long(destval, srcval);
+			} else {
+				u16 destval, srcval;
+
+				DECODE_PRINTF("TEST\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_word_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				test_word(destval, srcval);
+			}
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n");
+			HALT_SYS();
+			break;
+		case 2:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("NOT\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = not_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("NOT\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = not_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 3:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("NEG\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = neg_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("NEG\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = neg_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 4:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("MUL\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				mul_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("MUL\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				mul_word(destval);
+			}
+			break;
+		case 5:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("IMUL\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				imul_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("IMUL\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				imul_word(destval);
+			}
+			break;
+		case 6:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("DIV\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				div_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("DIV\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				div_word(destval);
+			}
+			break;
+		case 7:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("IDIV\tDWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				idiv_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("IDIV\tWORD PTR ");
+				destoffset = decode_rm00_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				idiv_word(destval);
+			}
+			break;
+		}
+		break;		/* end mod==00 */
+	case 1:		/* mod=01 */
+		switch (rh) {
+		case 0:	/* test word imm */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval, srcval;
+
+				DECODE_PRINTF("TEST\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_long_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				test_long(destval, srcval);
+			} else {
+				u16 destval, srcval;
+
+				DECODE_PRINTF("TEST\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_word_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				test_word(destval, srcval);
+			}
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("NOT\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = not_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("NOT\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = not_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 3:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("NEG\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = neg_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("NEG\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = neg_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 4:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("MUL\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				mul_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("MUL\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				mul_word(destval);
+			}
+			break;
+		case 5:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("IMUL\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				imul_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("IMUL\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				imul_word(destval);
+			}
+			break;
+		case 6:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("DIV\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				div_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("DIV\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				div_word(destval);
+			}
+			break;
+		case 7:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("IDIV\tDWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				idiv_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("IDIV\tWORD PTR ");
+				destoffset = decode_rm01_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				idiv_word(destval);
+			}
+			break;
+		}
+		break;		/* end mod==01 */
+	case 2:		/* mod=10 */
+		switch (rh) {
+		case 0:	/* test word imm */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval, srcval;
+
+				DECODE_PRINTF("TEST\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_long_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				test_long(destval, srcval);
+			} else {
+				u16 destval, srcval;
+
+				DECODE_PRINTF("TEST\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_word_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				test_word(destval, srcval);
+			}
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("NOT\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = not_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("NOT\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = not_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 3:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("NEG\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = neg_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("NEG\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = neg_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 4:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("MUL\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				mul_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("MUL\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				mul_word(destval);
+			}
+			break;
+		case 5:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("IMUL\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				imul_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("IMUL\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				imul_word(destval);
+			}
+			break;
+		case 6:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("DIV\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				div_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("DIV\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				div_word(destval);
+			}
+			break;
+		case 7:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				DECODE_PRINTF("IDIV\tDWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				idiv_long(destval);
+			} else {
+				u16 destval;
+
+				DECODE_PRINTF("IDIV\tWORD PTR ");
+				destoffset = decode_rm10_address(rl);
+				DECODE_PRINTF("\n");
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				idiv_word(destval);
+			}
+			break;
+		}
+		break;		/* end mod==10 */
+	case 3:		/* mod=11 */
+		switch (rh) {
+		case 0:	/* test word imm */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+				u32 srcval;
+
+				DECODE_PRINTF("TEST\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_long_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				TRACE_AND_STEP();
+				test_long(*destreg, srcval);
+			} else {
+				u16 *destreg;
+				u16 srcval;
+
+				DECODE_PRINTF("TEST\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF(",");
+				srcval = fetch_word_imm();
+				DECODE_PRINTF2("%x\n", srcval);
+				TRACE_AND_STEP();
+				test_word(*destreg, srcval);
+			}
+			break;
+		case 1:
+			DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+			HALT_SYS();
+			break;
+		case 2:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				DECODE_PRINTF("NOT\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = not_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				DECODE_PRINTF("NOT\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = not_word(*destreg);
+			}
+			break;
+		case 3:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				DECODE_PRINTF("NEG\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = neg_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				DECODE_PRINTF("NEG\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = neg_word(*destreg);
+			}
+			break;
+		case 4:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				DECODE_PRINTF("MUL\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				mul_long(*destreg);	/*!!!  */
+			} else {
+				u16 *destreg;
+
+				DECODE_PRINTF("MUL\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				mul_word(*destreg);	/*!!!  */
+			}
+			break;
+		case 5:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				DECODE_PRINTF("IMUL\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				imul_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				DECODE_PRINTF("IMUL\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				imul_word(*destreg);
+			}
+			break;
+		case 6:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				DECODE_PRINTF("DIV\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				div_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				DECODE_PRINTF("DIV\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				div_word(*destreg);
+			}
+			break;
+		case 7:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				DECODE_PRINTF("IDIV\t");
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				idiv_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				DECODE_PRINTF("IDIV\t");
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				idiv_word(*destreg);
+			}
+			break;
+		}
+		break;		/* end mod==11 */
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf8
+****************************************************************************/
+void x86emuOp_clc(u8 X86EMU_UNUSED(op1))
+{
+	/* clear the carry flag. */
+	START_OF_INSTR();
+	DECODE_PRINTF("CLC\n");
+	TRACE_AND_STEP();
+	CLEAR_FLAG(F_CF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf9
+****************************************************************************/
+void x86emuOp_stc(u8 X86EMU_UNUSED(op1))
+{
+	/* set the carry flag. */
+	START_OF_INSTR();
+	DECODE_PRINTF("STC\n");
+	TRACE_AND_STEP();
+	SET_FLAG(F_CF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfa
+****************************************************************************/
+void x86emuOp_cli(u8 X86EMU_UNUSED(op1))
+{
+	/* clear interrupts. */
+	START_OF_INSTR();
+	DECODE_PRINTF("CLI\n");
+	TRACE_AND_STEP();
+	CLEAR_FLAG(F_IF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfb
+****************************************************************************/
+void x86emuOp_sti(u8 X86EMU_UNUSED(op1))
+{
+	/* enable  interrupts. */
+	START_OF_INSTR();
+	DECODE_PRINTF("STI\n");
+	TRACE_AND_STEP();
+	SET_FLAG(F_IF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfc
+****************************************************************************/
+void x86emuOp_cld(u8 X86EMU_UNUSED(op1))
+{
+	/* clear interrupts. */
+	START_OF_INSTR();
+	DECODE_PRINTF("CLD\n");
+	TRACE_AND_STEP();
+	CLEAR_FLAG(F_DF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfd
+****************************************************************************/
+void x86emuOp_std(u8 X86EMU_UNUSED(op1))
+{
+	/* clear interrupts. */
+	START_OF_INSTR();
+	DECODE_PRINTF("STD\n");
+	TRACE_AND_STEP();
+	SET_FLAG(F_DF);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfe
+****************************************************************************/
+void x86emuOp_opcFE_byte_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rh, rl;
+	u8 destval;
+	uint destoffset;
+	u8 *destreg;
+
+	/* Yet another special case instruction. */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the 
+		   above test is done twice. */
+
+		switch (rh) {
+		case 0:
+			DECODE_PRINTF("INC\t");
+			break;
+		case 1:
+			DECODE_PRINTF("DEC\t");
+			break;
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+		case 6:
+		case 7:
+			DECODE_PRINTF2("ILLEGAL OP MAJOR OP 0xFE MINOR OP %x \n", mod);
+			HALT_SYS();
+			break;
+		}
+	}
+#endif
+	switch (mod) {
+	case 0:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:	/* inc word ptr ... */
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = inc_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 1:	/* dec word ptr ... */
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = dec_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		}
+		break;
+	case 1:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = inc_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 1:
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = dec_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		}
+		break;
+	case 2:
+		DECODE_PRINTF("BYTE PTR ");
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = inc_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		case 1:
+			destval = fetch_data_byte(destoffset);
+			TRACE_AND_STEP();
+			destval = dec_byte(destval);
+			store_data_byte(destoffset, destval);
+			break;
+		}
+		break;
+	case 3:
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:
+			TRACE_AND_STEP();
+			*destreg = inc_byte(*destreg);
+			break;
+		case 1:
+			TRACE_AND_STEP();
+			*destreg = dec_byte(*destreg);
+			break;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xff
+****************************************************************************/
+void x86emuOp_opcFF_word_RM(u8 X86EMU_UNUSED(op1))
+{
+	int mod, rh, rl;
+	uint destoffset = 0;
+	u16 *destreg;
+	u16 destval, destval2;
+
+	/* Yet another special case instruction. */
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+	if (DEBUG_DECODE()) {
+		/* XXX DECODE_PRINTF may be changed to something more
+		   general, so that it is important to leave the strings
+		   in the same format, even though the result is that the
+		   above test is done twice. */
+
+		switch (rh) {
+		case 0:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				DECODE_PRINTF("INC\tDWORD PTR ");
+			} else {
+				DECODE_PRINTF("INC\tWORD PTR ");
+			}
+			break;
+		case 1:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				DECODE_PRINTF("DEC\tDWORD PTR ");
+			} else {
+				DECODE_PRINTF("DEC\tWORD PTR ");
+			}
+			break;
+		case 2:
+			DECODE_PRINTF("CALL\t");
+			break;
+		case 3:
+			DECODE_PRINTF("CALL\tFAR ");
+			break;
+		case 4:
+			DECODE_PRINTF("JMP\t");
+			break;
+		case 5:
+			DECODE_PRINTF("JMP\tFAR ");
+			break;
+		case 6:
+			DECODE_PRINTF("PUSH\t");
+			break;
+		case 7:
+			DECODE_PRINTF("ILLEGAL DECODING OF OPCODE FF\t");
+			HALT_SYS();
+			break;
+		}
+	}
+#endif
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:	/* inc word ptr ... */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = inc_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = inc_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 1:	/* dec word ptr ... */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = dec_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = dec_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 2:	/* call word ptr ... */
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = destval;
+			break;
+		case 3:	/* call far ptr ... */
+			destval = fetch_data_word(destoffset);
+			destval2 = fetch_data_word(destoffset + 2);
+			TRACE_AND_STEP();
+			push_word(M.x86.R_CS);
+			M.x86.R_CS = destval2;
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = destval;
+			break;
+		case 4:	/* jmp word ptr ... */
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			M.x86.R_IP = destval;
+			break;
+		case 5:	/* jmp far ptr ... */
+			destval = fetch_data_word(destoffset);
+			destval2 = fetch_data_word(destoffset + 2);
+			TRACE_AND_STEP();
+			M.x86.R_IP = destval;
+			M.x86.R_CS = destval2;
+			break;
+		case 6:	/*  push word ptr ... */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				push_long(destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				push_word(destval);
+			}
+			break;
+		}
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = inc_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = inc_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 1:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = dec_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = dec_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 2:	/* call word ptr ... */
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = destval;
+			break;
+		case 3:	/* call far ptr ... */
+			destval = fetch_data_word(destoffset);
+			destval2 = fetch_data_word(destoffset + 2);
+			TRACE_AND_STEP();
+			push_word(M.x86.R_CS);
+			M.x86.R_CS = destval2;
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = destval;
+			break;
+		case 4:	/* jmp word ptr ... */
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			M.x86.R_IP = destval;
+			break;
+		case 5:	/* jmp far ptr ... */
+			destval = fetch_data_word(destoffset);
+			destval2 = fetch_data_word(destoffset + 2);
+			TRACE_AND_STEP();
+			M.x86.R_IP = destval;
+			M.x86.R_CS = destval2;
+			break;
+		case 6:	/*  push word ptr ... */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				push_long(destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				push_word(destval);
+			}
+			break;
+		}
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		switch (rh) {
+		case 0:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = inc_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = inc_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 1:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				destval = dec_long(destval);
+				store_data_long(destoffset, destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				destval = dec_word(destval);
+				store_data_word(destoffset, destval);
+			}
+			break;
+		case 2:	/* call word ptr ... */
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = destval;
+			break;
+		case 3:	/* call far ptr ... */
+			destval = fetch_data_word(destoffset);
+			destval2 = fetch_data_word(destoffset + 2);
+			TRACE_AND_STEP();
+			push_word(M.x86.R_CS);
+			M.x86.R_CS = destval2;
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = destval;
+			break;
+		case 4:	/* jmp word ptr ... */
+			destval = fetch_data_word(destoffset);
+			TRACE_AND_STEP();
+			M.x86.R_IP = destval;
+			break;
+		case 5:	/* jmp far ptr ... */
+			destval = fetch_data_word(destoffset);
+			destval2 = fetch_data_word(destoffset + 2);
+			TRACE_AND_STEP();
+			M.x86.R_IP = destval;
+			M.x86.R_CS = destval2;
+			break;
+		case 6:	/*  push word ptr ... */
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 destval;
+
+				destval = fetch_data_long(destoffset);
+				TRACE_AND_STEP();
+				push_long(destval);
+			} else {
+				u16 destval;
+
+				destval = fetch_data_word(destoffset);
+				TRACE_AND_STEP();
+				push_word(destval);
+			}
+			break;
+		}
+		break;
+	case 3:
+		switch (rh) {
+		case 0:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = inc_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = inc_word(*destreg);
+			}
+			break;
+		case 1:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = dec_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				*destreg = dec_word(*destreg);
+			}
+			break;
+		case 2:	/* call word ptr ... */
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			push_word(M.x86.R_IP);
+			M.x86.R_IP = *destreg;
+			break;
+		case 3:	/* jmp far ptr ... */
+			DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n");
+			TRACE_AND_STEP();
+			HALT_SYS();
+			break;
+
+		case 4:	/* jmp  ... */
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			M.x86.R_IP = (u16) (*destreg);
+			break;
+		case 5:	/* jmp far ptr ... */
+			DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n");
+			TRACE_AND_STEP();
+			HALT_SYS();
+			break;
+		case 6:
+			if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+				u32 *destreg;
+
+				destreg = DECODE_RM_LONG_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				push_long(*destreg);
+			} else {
+				u16 *destreg;
+
+				destreg = DECODE_RM_WORD_REGISTER(rl);
+				DECODE_PRINTF("\n");
+				TRACE_AND_STEP();
+				push_word(*destreg);
+			}
+			break;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/***************************************************************************
+ * Single byte operation code table:
+ **************************************************************************/
+void (*x86emu_optab[256]) (u8) = {
+/*  0x00 */ x86emuOp_add_byte_RM_R,
+/*  0x01 */ x86emuOp_add_word_RM_R,
+/*  0x02 */ x86emuOp_add_byte_R_RM,
+/*  0x03 */ x86emuOp_add_word_R_RM,
+/*  0x04 */ x86emuOp_add_byte_AL_IMM,
+/*  0x05 */ x86emuOp_add_word_AX_IMM,
+/*  0x06 */ x86emuOp_push_ES,
+/*  0x07 */ x86emuOp_pop_ES,
+/*  0x08 */ x86emuOp_or_byte_RM_R,
+/*  0x09 */ x86emuOp_or_word_RM_R,
+/*  0x0a */ x86emuOp_or_byte_R_RM,
+/*  0x0b */ x86emuOp_or_word_R_RM,
+/*  0x0c */ x86emuOp_or_byte_AL_IMM,
+/*  0x0d */ x86emuOp_or_word_AX_IMM,
+/*  0x0e */ x86emuOp_push_CS,
+/*  0x0f */ x86emuOp_two_byte,
+/*  0x10 */ x86emuOp_adc_byte_RM_R,
+/*  0x11 */ x86emuOp_adc_word_RM_R,
+/*  0x12 */ x86emuOp_adc_byte_R_RM,
+/*  0x13 */ x86emuOp_adc_word_R_RM,
+/*  0x14 */ x86emuOp_adc_byte_AL_IMM,
+/*  0x15 */ x86emuOp_adc_word_AX_IMM,
+/*  0x16 */ x86emuOp_push_SS,
+/*  0x17 */ x86emuOp_pop_SS,
+/*  0x18 */ x86emuOp_sbb_byte_RM_R,
+/*  0x19 */ x86emuOp_sbb_word_RM_R,
+/*  0x1a */ x86emuOp_sbb_byte_R_RM,
+/*  0x1b */ x86emuOp_sbb_word_R_RM,
+/*  0x1c */ x86emuOp_sbb_byte_AL_IMM,
+/*  0x1d */ x86emuOp_sbb_word_AX_IMM,
+/*  0x1e */ x86emuOp_push_DS,
+/*  0x1f */ x86emuOp_pop_DS,
+/*  0x20 */ x86emuOp_and_byte_RM_R,
+/*  0x21 */ x86emuOp_and_word_RM_R,
+/*  0x22 */ x86emuOp_and_byte_R_RM,
+/*  0x23 */ x86emuOp_and_word_R_RM,
+/*  0x24 */ x86emuOp_and_byte_AL_IMM,
+/*  0x25 */ x86emuOp_and_word_AX_IMM,
+/*  0x26 */ x86emuOp_segovr_ES,
+/*  0x27 */ x86emuOp_daa,
+/*  0x28 */ x86emuOp_sub_byte_RM_R,
+/*  0x29 */ x86emuOp_sub_word_RM_R,
+/*  0x2a */ x86emuOp_sub_byte_R_RM,
+/*  0x2b */ x86emuOp_sub_word_R_RM,
+/*  0x2c */ x86emuOp_sub_byte_AL_IMM,
+/*  0x2d */ x86emuOp_sub_word_AX_IMM,
+/*  0x2e */ x86emuOp_segovr_CS,
+/*  0x2f */ x86emuOp_das,
+/*  0x30 */ x86emuOp_xor_byte_RM_R,
+/*  0x31 */ x86emuOp_xor_word_RM_R,
+/*  0x32 */ x86emuOp_xor_byte_R_RM,
+/*  0x33 */ x86emuOp_xor_word_R_RM,
+/*  0x34 */ x86emuOp_xor_byte_AL_IMM,
+/*  0x35 */ x86emuOp_xor_word_AX_IMM,
+/*  0x36 */ x86emuOp_segovr_SS,
+/*  0x37 */ x86emuOp_aaa,
+/*  0x38 */ x86emuOp_cmp_byte_RM_R,
+/*  0x39 */ x86emuOp_cmp_word_RM_R,
+/*  0x3a */ x86emuOp_cmp_byte_R_RM,
+/*  0x3b */ x86emuOp_cmp_word_R_RM,
+/*  0x3c */ x86emuOp_cmp_byte_AL_IMM,
+/*  0x3d */ x86emuOp_cmp_word_AX_IMM,
+/*  0x3e */ x86emuOp_segovr_DS,
+/*  0x3f */ x86emuOp_aas,
+/*  0x40 */ x86emuOp_inc_AX,
+/*  0x41 */ x86emuOp_inc_CX,
+/*  0x42 */ x86emuOp_inc_DX,
+/*  0x43 */ x86emuOp_inc_BX,
+/*  0x44 */ x86emuOp_inc_SP,
+/*  0x45 */ x86emuOp_inc_BP,
+/*  0x46 */ x86emuOp_inc_SI,
+/*  0x47 */ x86emuOp_inc_DI,
+/*  0x48 */ x86emuOp_dec_AX,
+/*  0x49 */ x86emuOp_dec_CX,
+/*  0x4a */ x86emuOp_dec_DX,
+/*  0x4b */ x86emuOp_dec_BX,
+/*  0x4c */ x86emuOp_dec_SP,
+/*  0x4d */ x86emuOp_dec_BP,
+/*  0x4e */ x86emuOp_dec_SI,
+/*  0x4f */ x86emuOp_dec_DI,
+/*  0x50 */ x86emuOp_push_AX,
+/*  0x51 */ x86emuOp_push_CX,
+/*  0x52 */ x86emuOp_push_DX,
+/*  0x53 */ x86emuOp_push_BX,
+/*  0x54 */ x86emuOp_push_SP,
+/*  0x55 */ x86emuOp_push_BP,
+/*  0x56 */ x86emuOp_push_SI,
+/*  0x57 */ x86emuOp_push_DI,
+/*  0x58 */ x86emuOp_pop_AX,
+/*  0x59 */ x86emuOp_pop_CX,
+/*  0x5a */ x86emuOp_pop_DX,
+/*  0x5b */ x86emuOp_pop_BX,
+/*  0x5c */ x86emuOp_pop_SP,
+/*  0x5d */ x86emuOp_pop_BP,
+/*  0x5e */ x86emuOp_pop_SI,
+/*  0x5f */ x86emuOp_pop_DI,
+/*  0x60 */ x86emuOp_push_all,
+/*  0x61 */ x86emuOp_pop_all,
+						/*  0x62 */ x86emuOp_illegal_op,
+						/* bound */
+						/*  0x63 */ x86emuOp_illegal_op,
+						/* arpl */
+/*  0x64 */ x86emuOp_segovr_FS,
+/*  0x65 */ x86emuOp_segovr_GS,
+/*  0x66 */ x86emuOp_prefix_data,
+/*  0x67 */ x86emuOp_prefix_addr,
+/*  0x68 */ x86emuOp_push_word_IMM,
+/*  0x69 */ x86emuOp_imul_word_IMM,
+/*  0x6a */ x86emuOp_push_byte_IMM,
+/*  0x6b */ x86emuOp_imul_byte_IMM,
+/*  0x6c */ x86emuOp_ins_byte,
+/*  0x6d */ x86emuOp_ins_word,
+/*  0x6e */ x86emuOp_outs_byte,
+/*  0x6f */ x86emuOp_outs_word,
+/*  0x70 */ x86emuOp_jump_near_O,
+/*  0x71 */ x86emuOp_jump_near_NO,
+/*  0x72 */ x86emuOp_jump_near_B,
+/*  0x73 */ x86emuOp_jump_near_NB,
+/*  0x74 */ x86emuOp_jump_near_Z,
+/*  0x75 */ x86emuOp_jump_near_NZ,
+/*  0x76 */ x86emuOp_jump_near_BE,
+/*  0x77 */ x86emuOp_jump_near_NBE,
+/*  0x78 */ x86emuOp_jump_near_S,
+/*  0x79 */ x86emuOp_jump_near_NS,
+/*  0x7a */ x86emuOp_jump_near_P,
+/*  0x7b */ x86emuOp_jump_near_NP,
+/*  0x7c */ x86emuOp_jump_near_L,
+/*  0x7d */ x86emuOp_jump_near_NL,
+/*  0x7e */ x86emuOp_jump_near_LE,
+/*  0x7f */ x86emuOp_jump_near_NLE,
+/*  0x80 */ x86emuOp_opc80_byte_RM_IMM,
+/*  0x81 */ x86emuOp_opc81_word_RM_IMM,
+/*  0x82 */ x86emuOp_opc82_byte_RM_IMM,
+/*  0x83 */ x86emuOp_opc83_word_RM_IMM,
+/*  0x84 */ x86emuOp_test_byte_RM_R,
+/*  0x85 */ x86emuOp_test_word_RM_R,
+/*  0x86 */ x86emuOp_xchg_byte_RM_R,
+/*  0x87 */ x86emuOp_xchg_word_RM_R,
+/*  0x88 */ x86emuOp_mov_byte_RM_R,
+/*  0x89 */ x86emuOp_mov_word_RM_R,
+/*  0x8a */ x86emuOp_mov_byte_R_RM,
+/*  0x8b */ x86emuOp_mov_word_R_RM,
+/*  0x8c */ x86emuOp_mov_word_RM_SR,
+/*  0x8d */ x86emuOp_lea_word_R_M,
+/*  0x8e */ x86emuOp_mov_word_SR_RM,
+/*  0x8f */ x86emuOp_pop_RM,
+/*  0x90 */ x86emuOp_nop,
+/*  0x91 */ x86emuOp_xchg_word_AX_CX,
+/*  0x92 */ x86emuOp_xchg_word_AX_DX,
+/*  0x93 */ x86emuOp_xchg_word_AX_BX,
+/*  0x94 */ x86emuOp_xchg_word_AX_SP,
+/*  0x95 */ x86emuOp_xchg_word_AX_BP,
+/*  0x96 */ x86emuOp_xchg_word_AX_SI,
+/*  0x97 */ x86emuOp_xchg_word_AX_DI,
+/*  0x98 */ x86emuOp_cbw,
+/*  0x99 */ x86emuOp_cwd,
+/*  0x9a */ x86emuOp_call_far_IMM,
+/*  0x9b */ x86emuOp_wait,
+/*  0x9c */ x86emuOp_pushf_word,
+/*  0x9d */ x86emuOp_popf_word,
+/*  0x9e */ x86emuOp_sahf,
+/*  0x9f */ x86emuOp_lahf,
+/*  0xa0 */ x86emuOp_mov_AL_M_IMM,
+/*  0xa1 */ x86emuOp_mov_AX_M_IMM,
+/*  0xa2 */ x86emuOp_mov_M_AL_IMM,
+/*  0xa3 */ x86emuOp_mov_M_AX_IMM,
+/*  0xa4 */ x86emuOp_movs_byte,
+/*  0xa5 */ x86emuOp_movs_word,
+/*  0xa6 */ x86emuOp_cmps_byte,
+/*  0xa7 */ x86emuOp_cmps_word,
+/*  0xa8 */ x86emuOp_test_AL_IMM,
+/*  0xa9 */ x86emuOp_test_AX_IMM,
+/*  0xaa */ x86emuOp_stos_byte,
+/*  0xab */ x86emuOp_stos_word,
+/*  0xac */ x86emuOp_lods_byte,
+/*  0xad */ x86emuOp_lods_word,
+/*  0xac */ x86emuOp_scas_byte,
+/*  0xad */ x86emuOp_scas_word,
+/*  0xb0 */ x86emuOp_mov_byte_AL_IMM,
+/*  0xb1 */ x86emuOp_mov_byte_CL_IMM,
+/*  0xb2 */ x86emuOp_mov_byte_DL_IMM,
+/*  0xb3 */ x86emuOp_mov_byte_BL_IMM,
+/*  0xb4 */ x86emuOp_mov_byte_AH_IMM,
+/*  0xb5 */ x86emuOp_mov_byte_CH_IMM,
+/*  0xb6 */ x86emuOp_mov_byte_DH_IMM,
+/*  0xb7 */ x86emuOp_mov_byte_BH_IMM,
+/*  0xb8 */ x86emuOp_mov_word_AX_IMM,
+/*  0xb9 */ x86emuOp_mov_word_CX_IMM,
+/*  0xba */ x86emuOp_mov_word_DX_IMM,
+/*  0xbb */ x86emuOp_mov_word_BX_IMM,
+/*  0xbc */ x86emuOp_mov_word_SP_IMM,
+/*  0xbd */ x86emuOp_mov_word_BP_IMM,
+/*  0xbe */ x86emuOp_mov_word_SI_IMM,
+/*  0xbf */ x86emuOp_mov_word_DI_IMM,
+/*  0xc0 */ x86emuOp_opcC0_byte_RM_MEM,
+/*  0xc1 */ x86emuOp_opcC1_word_RM_MEM,
+/*  0xc2 */ x86emuOp_ret_near_IMM,
+/*  0xc3 */ x86emuOp_ret_near,
+/*  0xc4 */ x86emuOp_les_R_IMM,
+/*  0xc5 */ x86emuOp_lds_R_IMM,
+/*  0xc6 */ x86emuOp_mov_byte_RM_IMM,
+/*  0xc7 */ x86emuOp_mov_word_RM_IMM,
+/*  0xc8 */ x86emuOp_enter,
+/*  0xc9 */ x86emuOp_leave,
+/*  0xca */ x86emuOp_ret_far_IMM,
+/*  0xcb */ x86emuOp_ret_far,
+/*  0xcc */ x86emuOp_int3,
+/*  0xcd */ x86emuOp_int_IMM,
+/*  0xce */ x86emuOp_into,
+/*  0xcf */ x86emuOp_iret,
+/*  0xd0 */ x86emuOp_opcD0_byte_RM_1,
+/*  0xd1 */ x86emuOp_opcD1_word_RM_1,
+/*  0xd2 */ x86emuOp_opcD2_byte_RM_CL,
+/*  0xd3 */ x86emuOp_opcD3_word_RM_CL,
+/*  0xd4 */ x86emuOp_aam,
+/*  0xd5 */ x86emuOp_aad,
+						/*  0xd6 */ x86emuOp_illegal_op,
+						/* Undocumented SETALC instruction */
+/*  0xd7 */ x86emuOp_xlat,
+/*  0xd8 */ x86emuOp_esc_coprocess_d8,
+/*  0xd9 */ x86emuOp_esc_coprocess_d9,
+/*  0xda */ x86emuOp_esc_coprocess_da,
+/*  0xdb */ x86emuOp_esc_coprocess_db,
+/*  0xdc */ x86emuOp_esc_coprocess_dc,
+/*  0xdd */ x86emuOp_esc_coprocess_dd,
+/*  0xde */ x86emuOp_esc_coprocess_de,
+/*  0xdf */ x86emuOp_esc_coprocess_df,
+/*  0xe0 */ x86emuOp_loopne,
+/*  0xe1 */ x86emuOp_loope,
+/*  0xe2 */ x86emuOp_loop,
+/*  0xe3 */ x86emuOp_jcxz,
+/*  0xe4 */ x86emuOp_in_byte_AL_IMM,
+/*  0xe5 */ x86emuOp_in_word_AX_IMM,
+/*  0xe6 */ x86emuOp_out_byte_IMM_AL,
+/*  0xe7 */ x86emuOp_out_word_IMM_AX,
+/*  0xe8 */ x86emuOp_call_near_IMM,
+/*  0xe9 */ x86emuOp_jump_near_IMM,
+/*  0xea */ x86emuOp_jump_far_IMM,
+/*  0xeb */ x86emuOp_jump_byte_IMM,
+/*  0xec */ x86emuOp_in_byte_AL_DX,
+/*  0xed */ x86emuOp_in_word_AX_DX,
+/*  0xee */ x86emuOp_out_byte_DX_AL,
+/*  0xef */ x86emuOp_out_word_DX_AX,
+/*  0xf0 */ x86emuOp_lock,
+/*  0xf1 */ x86emuOp_illegal_op,
+/*  0xf2 */ x86emuOp_repne,
+/*  0xf3 */ x86emuOp_repe,
+/*  0xf4 */ x86emuOp_halt,
+/*  0xf5 */ x86emuOp_cmc,
+/*  0xf6 */ x86emuOp_opcF6_byte_RM,
+/*  0xf7 */ x86emuOp_opcF7_word_RM,
+/*  0xf8 */ x86emuOp_clc,
+/*  0xf9 */ x86emuOp_stc,
+/*  0xfa */ x86emuOp_cli,
+/*  0xfb */ x86emuOp_sti,
+/*  0xfc */ x86emuOp_cld,
+/*  0xfd */ x86emuOp_std,
+/*  0xfe */ x86emuOp_opcFE_byte_RM,
+/*  0xff */ x86emuOp_opcFF_word_RM,
+};
diff --git a/util/vgabios/x86emu/src/x86emu/ops2.c b/util/vgabios/x86emu/src/x86emu/ops2.c
new file mode 100644
index 0000000000..da3df4fbb7
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/ops2.c
@@ -0,0 +1,2860 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file includes subroutines to implement the decoding
+*               and emulation of all the x86 extended two-byte processor
+*               instructions.
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/src/x86emu/ops2.c,v 1.4 2000/11/16 19:44:50 eich Exp $ */
+
+#include "x86emu/x86emui.h"
+//#include </root/freebios/util/vgabios/x86emu/include/msr.h>
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+op1 - Instruction op code
+
+REMARKS:
+Handles illegal opcodes.
+****************************************************************************/
+void x86emuOp2_illegal_op(u8 op2)
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
+	TRACE_REGS();
+	printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n",
+	       M.x86.R_CS, M.x86.R_IP - 2, op2);
+	HALT_SYS();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0x31
+****************************************************************************/
+void x86emuOp2_rdtsc(u8 op2)
+{
+	static unsigned long eax = 0, edx = 0;
+	char *name = 0;
+
+	/* rdtsc */
+	START_OF_INSTR();
+	switch (op2) {
+	case 0x31:
+		name = "RDTSC\t";
+		//rdtsc(eax, edx);
+		eax++;
+		if (eax == 0)
+			edx++;
+		M.x86.R_EAX = eax;
+		M.x86.R_EDX = edx;
+		break;
+	default:
+		DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE(0f)\n");
+		TRACE_REGS();
+		printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n",
+		       M.x86.R_CS, M.x86.R_IP - 2, op2);
+		HALT_SYS();
+		break;
+	}
+	DECODE_PRINTF(name);
+	TRACE_AND_STEP();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+#define xorl(a,b)   ((a) && !(b)) || (!(a) && (b))
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0x80-0x8F
+****************************************************************************/
+void x86emuOp2_long_jump(u8 op2)
+{
+	s32 target;
+	char *name = 0;
+	int cond = 0;
+
+	/* conditional jump to word offset. */
+	START_OF_INSTR();
+	switch (op2) {
+	case 0x80:
+		name = "JO\t";
+		cond = ACCESS_FLAG(F_OF);
+		break;
+	case 0x81:
+		name = "JNO\t";
+		cond = !ACCESS_FLAG(F_OF);
+		break;
+	case 0x82:
+		name = "JB\t";
+		cond = ACCESS_FLAG(F_CF);
+		break;
+	case 0x83:
+		name = "JNB\t";
+		cond = !ACCESS_FLAG(F_CF);
+		break;
+	case 0x84:
+		name = "JZ\t";
+		cond = ACCESS_FLAG(F_ZF);
+		break;
+	case 0x85:
+		name = "JNZ\t";
+		cond = !ACCESS_FLAG(F_ZF);
+		break;
+	case 0x86:
+		name = "JBE\t";
+		cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF);
+		break;
+	case 0x87:
+		name = "JNBE\t";
+		cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF));
+		break;
+	case 0x88:
+		name = "JS\t";
+		cond = ACCESS_FLAG(F_SF);
+		break;
+	case 0x89:
+		name = "JNS\t";
+		cond = !ACCESS_FLAG(F_SF);
+		break;
+	case 0x8a:
+		name = "JP\t";
+		cond = ACCESS_FLAG(F_PF);
+		break;
+	case 0x8b:
+		name = "JNP\t";
+		cond = !ACCESS_FLAG(F_PF);
+		break;
+	case 0x8c:
+		name = "JL\t";
+		cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+		break;
+	case 0x8d:
+		name = "JNL\t";
+		cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+		break;
+	case 0x8e:
+		name = "JLE\t";
+		cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF));
+		break;
+	case 0x8f:
+		name = "JNLE\t";
+		cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF));
+		break;
+	}
+	DECODE_PRINTF(name);
+	target = (s16) fetch_word_imm();
+	target += (s16) M.x86.R_IP;
+	DECODE_PRINTF2("%04x\n", target);
+	TRACE_AND_STEP();
+	if (cond)
+		M.x86.R_IP = (u16) target;
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0x90-0x9F
+****************************************************************************/
+void x86emuOp2_set_byte(u8 op2)
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 *destreg;
+	char *name = 0;
+	int cond = 0;
+
+	START_OF_INSTR();
+	switch (op2) {
+	case 0x90:
+		name = "SETO\t";
+		cond = ACCESS_FLAG(F_OF);
+		break;
+	case 0x91:
+		name = "SETNO\t";
+		cond = !ACCESS_FLAG(F_OF);
+		break;
+	case 0x92:
+		name = "SETB\t";
+		cond = ACCESS_FLAG(F_CF);
+		break;
+	case 0x93:
+		name = "SETNB\t";
+		cond = !ACCESS_FLAG(F_CF);
+		break;
+	case 0x94:
+		name = "SETZ\t";
+		cond = ACCESS_FLAG(F_ZF);
+		break;
+	case 0x95:
+		name = "SETNZ\t";
+		cond = !ACCESS_FLAG(F_ZF);
+		break;
+	case 0x96:
+		name = "SETBE\t";
+		cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF);
+		break;
+	case 0x97:
+		name = "SETNBE\t";
+		cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF));
+		break;
+	case 0x98:
+		name = "SETS\t";
+		cond = ACCESS_FLAG(F_SF);
+		break;
+	case 0x99:
+		name = "SETNS\t";
+		cond = !ACCESS_FLAG(F_SF);
+		break;
+	case 0x9a:
+		name = "SETP\t";
+		cond = ACCESS_FLAG(F_PF);
+		break;
+	case 0x9b:
+		name = "SETNP\t";
+		cond = !ACCESS_FLAG(F_PF);
+		break;
+	case 0x9c:
+		name = "SETL\t";
+		cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+		break;
+	case 0x9d:
+		name = "SETNL\t";
+		cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+		break;
+	case 0x9e:
+		name = "SETLE\t";
+		cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF));
+		break;
+	case 0x9f:
+		name = "SETNLE\t";
+		cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || ACCESS_FLAG(F_ZF));
+		break;
+	}
+	DECODE_PRINTF(name);
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destoffset = decode_rm00_address(rl);
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, cond ? 0x01 : 0x00);
+		break;
+	case 1:
+		destoffset = decode_rm01_address(rl);
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, cond ? 0x01 : 0x00);
+		break;
+	case 2:
+		destoffset = decode_rm10_address(rl);
+		TRACE_AND_STEP();
+		store_data_byte(destoffset, cond ? 0x01 : 0x00);
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_BYTE_REGISTER(rl);
+		TRACE_AND_STEP();
+		*destreg = cond ? 0x01 : 0x00;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa0
+****************************************************************************/
+void x86emuOp2_push_FS(u8 X86EMU_UNUSED(op2))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("PUSH\tFS\n");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_FS);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa1
+****************************************************************************/
+void x86emuOp2_pop_FS(u8 X86EMU_UNUSED(op2))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("POP\tFS\n");
+	TRACE_AND_STEP();
+	M.x86.R_FS = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa3
+****************************************************************************/
+void x86emuOp2_bt_R(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	int bit, disp;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("BT\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+		} else {
+			u16 srcval;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+		} else {
+			u16 srcval;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+		} else {
+			u16 srcval;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg, *shiftreg;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit), F_CF);
+		} else {
+			u16 *srcreg, *shiftreg;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit), F_CF);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa4
+****************************************************************************/
+void x86emuOp2_shld_IMM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 shift;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SHLD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shld_long(destval, *shiftreg, shift);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shld_word(destval, *shiftreg, shift);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shld_long(destval, *shiftreg, shift);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shld_word(destval, *shiftreg, shift);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shld_long(destval, *shiftreg, shift);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shld_word(destval, *shiftreg, shift);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			*destreg = shld_long(*destreg, *shiftreg, shift);
+		} else {
+			u16 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			*destreg = shld_word(*destreg, *shiftreg, shift);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa5
+****************************************************************************/
+void x86emuOp2_shld_CL(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SHLD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shld_long(destval, *shiftreg, M.x86.R_CL);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shld_word(destval, *shiftreg, M.x86.R_CL);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shld_long(destval, *shiftreg, M.x86.R_CL);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shld_word(destval, *shiftreg, M.x86.R_CL);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shld_long(destval, *shiftreg, M.x86.R_CL);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shld_word(destval, *shiftreg, M.x86.R_CL);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			*destreg = shld_long(*destreg, *shiftreg, M.x86.R_CL);
+		} else {
+			u16 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			*destreg = shld_word(*destreg, *shiftreg, M.x86.R_CL);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa8
+****************************************************************************/
+void x86emuOp2_push_GS(u8 X86EMU_UNUSED(op2))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("PUSH\tGS\n");
+	TRACE_AND_STEP();
+	push_word(M.x86.R_GS);
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa9
+****************************************************************************/
+void x86emuOp2_pop_GS(u8 X86EMU_UNUSED(op2))
+{
+	START_OF_INSTR();
+	DECODE_PRINTF("POP\tGS\n");
+	TRACE_AND_STEP();
+	M.x86.R_GS = pop_word();
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xaa
+****************************************************************************/
+void x86emuOp2_bts_R(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	int bit, disp;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("BTS\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval | mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, srcval | mask);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval | mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, srcval | mask);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval | mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, srcval | mask);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg, *shiftreg;
+			u32 mask;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			*srcreg |= mask;
+		} else {
+			u16 *srcreg, *shiftreg;
+			u16 mask;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			*srcreg |= mask;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xac
+****************************************************************************/
+void x86emuOp2_shrd_IMM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint destoffset;
+	u8 shift;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SHLD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shrd_long(destval, *shiftreg, shift);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shrd_word(destval, *shiftreg, shift);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shrd_long(destval, *shiftreg, shift);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shrd_word(destval, *shiftreg, shift);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shrd_long(destval, *shiftreg, shift);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shrd_word(destval, *shiftreg, shift);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			*destreg = shrd_long(*destreg, *shiftreg, shift);
+		} else {
+			u16 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			DECODE_PRINTF2("%d\n", shift);
+			TRACE_AND_STEP();
+			*destreg = shrd_word(*destreg, *shiftreg, shift);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xad
+****************************************************************************/
+void x86emuOp2_shrd_CL(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint destoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("SHLD\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shrd_long(destval, *shiftreg, M.x86.R_CL);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shrd_word(destval, *shiftreg, M.x86.R_CL);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shrd_long(destval, *shiftreg, M.x86.R_CL);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shrd_word(destval, *shiftreg, M.x86.R_CL);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_long(destoffset);
+			destval = shrd_long(destval, *shiftreg, M.x86.R_CL);
+			store_data_long(destoffset, destval);
+		} else {
+			u16 destval;
+			u16 *shiftreg;
+
+			destoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			destval = fetch_data_word(destoffset);
+			destval = shrd_word(destval, *shiftreg, M.x86.R_CL);
+			store_data_word(destoffset, destval);
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			*destreg = shrd_long(*destreg, *shiftreg, M.x86.R_CL);
+		} else {
+			u16 *destreg, *shiftreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",CL\n");
+			TRACE_AND_STEP();
+			*destreg = shrd_word(*destreg, *shiftreg, M.x86.R_CL);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xaf
+****************************************************************************/
+void x86emuOp2_imul_R_RM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("IMUL\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			TRACE_AND_STEP();
+			res = (s16) * destreg * (s16) srcval;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			TRACE_AND_STEP();
+			res = (s16) * destreg * (s16) srcval;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_long(srcoffset);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_word(srcoffset);
+			TRACE_AND_STEP();
+			res = (s16) * destreg * (s16) srcval;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg, *srcreg;
+			u32 res_lo, res_hi;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			TRACE_AND_STEP();
+			imul_long_direct(&res_lo, &res_hi, (s32) * destreg,
+					 (s32) * srcreg);
+			if (res_hi != 0) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u32) res_lo;
+		} else {
+			u16 *destreg, *srcreg;
+			u32 res;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			res = (s16) * destreg * (s16) * srcreg;
+			if (res > 0xFFFF) {
+				SET_FLAG(F_CF);
+				SET_FLAG(F_OF);
+			} else {
+				CLEAR_FLAG(F_CF);
+				CLEAR_FLAG(F_OF);
+			}
+			*destreg = (u16) res;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb2
+****************************************************************************/
+void x86emuOp2_lss_R_IMM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rh, rl;
+	u16 *dstreg;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LSS\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_SS = fetch_data_word(srcoffset + 2);
+		break;
+	case 1:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_SS = fetch_data_word(srcoffset + 2);
+		break;
+	case 2:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_SS = fetch_data_word(srcoffset + 2);
+		break;
+	case 3:		/* register to register */
+		/* UNDEFINED! */
+		TRACE_AND_STEP();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb3
+****************************************************************************/
+void x86emuOp2_btr_R(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	int bit, disp;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("BTR\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval & ~mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, (u16) (srcval & ~mask));
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval & ~mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, (u16) (srcval & ~mask));
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval & ~mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, (u16) (srcval & ~mask));
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg, *shiftreg;
+			u32 mask;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			*srcreg &= ~mask;
+		} else {
+			u16 *srcreg, *shiftreg;
+			u16 mask;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			*srcreg &= ~mask;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb4
+****************************************************************************/
+void x86emuOp2_lfs_R_IMM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rh, rl;
+	u16 *dstreg;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LFS\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_FS = fetch_data_word(srcoffset + 2);
+		break;
+	case 1:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_FS = fetch_data_word(srcoffset + 2);
+		break;
+	case 2:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_FS = fetch_data_word(srcoffset + 2);
+		break;
+	case 3:		/* register to register */
+		/* UNDEFINED! */
+		TRACE_AND_STEP();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb5
+****************************************************************************/
+void x86emuOp2_lgs_R_IMM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rh, rl;
+	u16 *dstreg;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("LGS\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_GS = fetch_data_word(srcoffset + 2);
+		break;
+	case 1:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_GS = fetch_data_word(srcoffset + 2);
+		break;
+	case 2:
+		dstreg = DECODE_RM_WORD_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*dstreg = fetch_data_word(srcoffset);
+		M.x86.R_GS = fetch_data_word(srcoffset + 2);
+		break;
+	case 3:		/* register to register */
+		/* UNDEFINED! */
+		TRACE_AND_STEP();
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb6
+****************************************************************************/
+void x86emuOp2_movzx_byte_R_RM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOVZX\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_byte(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = fetch_data_byte(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_byte(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = fetch_data_byte(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_byte(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = fetch_data_byte(srcoffset);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u8 *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = *srcreg;
+		} else {
+			u16 *destreg;
+			u8 *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = *srcreg;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb7
+****************************************************************************/
+void x86emuOp2_movzx_word_R_RM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	u32 *destreg;
+	u32 srcval;
+	u16 *srcreg;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOVZX\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = fetch_data_word(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 1:
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = fetch_data_word(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 2:
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = fetch_data_word(srcoffset);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = *srcreg;
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xba
+****************************************************************************/
+void x86emuOp2_btX_I(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	int bit;
+
+	START_OF_INSTR();
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (rh) {
+	case 3:
+		DECODE_PRINTF("BT\t");
+		break;
+	case 4:
+		DECODE_PRINTF("BTS\t");
+		break;
+	case 5:
+		DECODE_PRINTF("BTR\t");
+		break;
+	case 6:
+		DECODE_PRINTF("BTC\t");
+		break;
+	default:
+		DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
+		TRACE_REGS();
+		printk("%04x:%04x: %02X%02X ILLEGAL EXTENDED X86 OPCODE EXTENSION!\n",
+		       M.x86.R_CS, M.x86.R_IP - 3, op2, (mod << 6) | (rh << 3) | rl);
+		HALT_SYS();
+	}
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u8 shift;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0x1F;
+			srcval = fetch_data_long(srcoffset);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			switch (rh) {
+			case 4:
+				store_data_long(srcoffset, srcval | mask);
+				break;
+			case 5:
+				store_data_long(srcoffset, srcval & ~mask);
+				break;
+			case 6:
+				store_data_long(srcoffset, srcval ^ mask);
+				break;
+			default:
+				break;
+			}
+		} else {
+			u16 srcval, mask;
+			u8 shift;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0xF;
+			srcval = fetch_data_word(srcoffset);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			switch (rh) {
+			case 4:
+				store_data_word(srcoffset, srcval | mask);
+				break;
+			case 5:
+				store_data_word(srcoffset, srcval & ~mask);
+				break;
+			case 6:
+				store_data_word(srcoffset, srcval ^ mask);
+				break;
+			default:
+				break;
+			}
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u8 shift;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0x1F;
+			srcval = fetch_data_long(srcoffset);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			switch (rh) {
+			case 4:
+				store_data_long(srcoffset, srcval | mask);
+				break;
+			case 5:
+				store_data_long(srcoffset, srcval & ~mask);
+				break;
+			case 6:
+				store_data_long(srcoffset, srcval ^ mask);
+				break;
+			default:
+				break;
+			}
+		} else {
+			u16 srcval, mask;
+			u8 shift;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0xF;
+			srcval = fetch_data_word(srcoffset);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			switch (rh) {
+			case 4:
+				store_data_word(srcoffset, srcval | mask);
+				break;
+			case 5:
+				store_data_word(srcoffset, srcval & ~mask);
+				break;
+			case 6:
+				store_data_word(srcoffset, srcval ^ mask);
+				break;
+			default:
+				break;
+			}
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u8 shift;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0x1F;
+			srcval = fetch_data_long(srcoffset);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			switch (rh) {
+			case 4:
+				store_data_long(srcoffset, srcval | mask);
+				break;
+			case 5:
+				store_data_long(srcoffset, srcval & ~mask);
+				break;
+			case 6:
+				store_data_long(srcoffset, srcval ^ mask);
+				break;
+			default:
+				break;
+			}
+		} else {
+			u16 srcval, mask;
+			u8 shift;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0xF;
+			srcval = fetch_data_word(srcoffset);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			switch (rh) {
+			case 4:
+				store_data_word(srcoffset, srcval | mask);
+				break;
+			case 5:
+				store_data_word(srcoffset, srcval & ~mask);
+				break;
+			case 6:
+				store_data_word(srcoffset, srcval ^ mask);
+				break;
+			default:
+				break;
+			}
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg;
+			u32 mask;
+			u8 shift;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0x1F;
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			switch (rh) {
+			case 4:
+				*srcreg |= mask;
+				break;
+			case 5:
+				*srcreg &= ~mask;
+				break;
+			case 6:
+				*srcreg ^= mask;
+				break;
+			default:
+				break;
+			}
+		} else {
+			u16 *srcreg;
+			u16 mask;
+			u8 shift;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shift = fetch_byte_imm();
+			TRACE_AND_STEP();
+			bit = shift & 0xF;
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			switch (rh) {
+			case 4:
+				*srcreg |= mask;
+				break;
+			case 5:
+				*srcreg &= ~mask;
+				break;
+			case 6:
+				*srcreg ^= mask;
+				break;
+			default:
+				break;
+			}
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbb
+****************************************************************************/
+void x86emuOp2_btc_R(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	int bit, disp;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("BTC\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval ^ mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, (u16) (srcval ^ mask));
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval ^ mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, (u16) (srcval ^ mask));
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, mask;
+			u32 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			disp = (s16) * shiftreg >> 5;
+			srcval = fetch_data_long(srcoffset + disp);
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_long(srcoffset + disp, srcval ^ mask);
+		} else {
+			u16 srcval, mask;
+			u16 *shiftreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			disp = (s16) * shiftreg >> 4;
+			srcval = fetch_data_word(srcoffset + disp);
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+			store_data_word(srcoffset + disp, (u16) (srcval ^ mask));
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg, *shiftreg;
+			u32 mask;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0x1F;
+			mask = (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			*srcreg ^= mask;
+		} else {
+			u16 *srcreg, *shiftreg;
+			u16 mask;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			shiftreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			bit = *shiftreg & 0xF;
+			mask = (u16) (0x1 << bit);
+			CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+			*srcreg ^= mask;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbc
+****************************************************************************/
+void x86emuOp2_bsf(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("BSF\n");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, *dstreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_long(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		} else {
+			u16 srcval, *dstreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_word(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, *dstreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_long(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		} else {
+			u16 srcval, *dstreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_word(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, *dstreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_long(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		} else {
+			u16 srcval, *dstreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_word(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg, *dstreg;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+				if ((*srcreg >> *dstreg) & 1)
+					break;
+		} else {
+			u16 *srcreg, *dstreg;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF);
+			for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+				if ((*srcreg >> *dstreg) & 1)
+					break;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbd
+****************************************************************************/
+void x86emuOp2_bsr(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("BSF\n");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, *dstreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_long(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		} else {
+			u16 srcval, *dstreg;
+
+			srcoffset = decode_rm00_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_word(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, *dstreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_long(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		} else {
+			u16 srcval, *dstreg;
+
+			srcoffset = decode_rm01_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_word(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 srcval, *dstreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_long(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		} else {
+			u16 srcval, *dstreg;
+
+			srcoffset = decode_rm10_address(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			srcval = fetch_data_word(srcoffset);
+			CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+			for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+				if ((srcval >> *dstreg) & 1)
+					break;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *srcreg, *dstreg;
+
+			srcreg = DECODE_RM_LONG_REGISTER(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_LONG_REGISTER(rh);
+			TRACE_AND_STEP();
+			CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF);
+			for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+				if ((*srcreg >> *dstreg) & 1)
+					break;
+		} else {
+			u16 *srcreg, *dstreg;
+
+			srcreg = DECODE_RM_WORD_REGISTER(rl);
+			DECODE_PRINTF(",");
+			dstreg = DECODE_RM_WORD_REGISTER(rh);
+			TRACE_AND_STEP();
+			CONDITIONAL_SET_FLAG(*srcreg == 0, F_ZF);
+			for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+				if ((*srcreg >> *dstreg) & 1)
+					break;
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbe
+****************************************************************************/
+void x86emuOp2_movsx_byte_R_RM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOVSX\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = (s32) ((s8) fetch_data_byte(srcoffset));
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm00_address(rl);
+			srcval = (s16) ((s8) fetch_data_byte(srcoffset));
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 1:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = (s32) ((s8) fetch_data_byte(srcoffset));
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm01_address(rl);
+			srcval = (s16) ((s8) fetch_data_byte(srcoffset));
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 2:
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 srcval;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = (s32) ((s8) fetch_data_byte(srcoffset));
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		} else {
+			u16 *destreg;
+			u16 srcval;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcoffset = decode_rm10_address(rl);
+			srcval = (s16) ((s8) fetch_data_byte(srcoffset));
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = srcval;
+		}
+		break;
+	case 3:		/* register to register */
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u8 *srcreg;
+
+			destreg = DECODE_RM_LONG_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = (s32) ((s8) * srcreg);
+		} else {
+			u16 *destreg;
+			u8 *srcreg;
+
+			destreg = DECODE_RM_WORD_REGISTER(rh);
+			DECODE_PRINTF(",");
+			srcreg = DECODE_RM_BYTE_REGISTER(rl);
+			DECODE_PRINTF("\n");
+			TRACE_AND_STEP();
+			*destreg = (s16) ((s8) * srcreg);
+		}
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbf
+****************************************************************************/
+void x86emuOp2_movsx_word_R_RM(u8 X86EMU_UNUSED(op2))
+{
+	int mod, rl, rh;
+	uint srcoffset;
+	u32 *destreg;
+	u32 srcval;
+	u16 *srcreg;
+
+	START_OF_INSTR();
+	DECODE_PRINTF("MOVSX\t");
+	FETCH_DECODE_MODRM(mod, rh, rl);
+	switch (mod) {
+	case 0:
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm00_address(rl);
+		srcval = (s32) ((s16) fetch_data_word(srcoffset));
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 1:
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm01_address(rl);
+		srcval = (s32) ((s16) fetch_data_word(srcoffset));
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 2:
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcoffset = decode_rm10_address(rl);
+		srcval = (s32) ((s16) fetch_data_word(srcoffset));
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = srcval;
+		break;
+	case 3:		/* register to register */
+		destreg = DECODE_RM_LONG_REGISTER(rh);
+		DECODE_PRINTF(",");
+		srcreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = (s32) ((s16) * srcreg);
+		break;
+	}
+	DECODE_CLEAR_SEGOVR();
+	END_OF_INSTR();
+}
+
+/***************************************************************************
+ * Double byte operation code table:
+ **************************************************************************/
+void (*x86emu_optab2[256]) (u8) = {
+						/*  0x00 */ x86emuOp2_illegal_op,
+						/* Group F (ring 0 PM)      */
+						/*  0x01 */ x86emuOp2_illegal_op,
+						/* Group G (ring 0 PM)      */
+						/*  0x02 */ x86emuOp2_illegal_op,
+						/* lar (ring 0 PM)          */
+						/*  0x03 */ x86emuOp2_illegal_op,
+						/* lsl (ring 0 PM)          */
+/*  0x04 */ x86emuOp2_illegal_op,
+						/*  0x05 */ x86emuOp2_illegal_op,
+						/* loadall (undocumented)   */
+						/*  0x06 */ x86emuOp2_illegal_op,
+						/* clts (ring 0 PM)         */
+						/*  0x07 */ x86emuOp2_illegal_op,
+						/* loadall (undocumented)   */
+						/*  0x08 */ x86emuOp2_illegal_op,
+						/* invd (ring 0 PM)         */
+						/*  0x09 */ x86emuOp2_illegal_op,
+						/* wbinvd (ring 0 PM)       */
+/*  0x0a */ x86emuOp2_illegal_op,
+/*  0x0b */ x86emuOp2_illegal_op,
+/*  0x0c */ x86emuOp2_illegal_op,
+/*  0x0d */ x86emuOp2_illegal_op,
+/*  0x0e */ x86emuOp2_illegal_op,
+/*  0x0f */ x86emuOp2_illegal_op,
+/*  0x10 */ x86emuOp2_illegal_op,
+/*  0x11 */ x86emuOp2_illegal_op,
+/*  0x12 */ x86emuOp2_illegal_op,
+/*  0x13 */ x86emuOp2_illegal_op,
+/*  0x14 */ x86emuOp2_illegal_op,
+/*  0x15 */ x86emuOp2_illegal_op,
+/*  0x16 */ x86emuOp2_illegal_op,
+/*  0x17 */ x86emuOp2_illegal_op,
+/*  0x18 */ x86emuOp2_illegal_op,
+/*  0x19 */ x86emuOp2_illegal_op,
+/*  0x1a */ x86emuOp2_illegal_op,
+/*  0x1b */ x86emuOp2_illegal_op,
+/*  0x1c */ x86emuOp2_illegal_op,
+/*  0x1d */ x86emuOp2_illegal_op,
+/*  0x1e */ x86emuOp2_illegal_op,
+/*  0x1f */ x86emuOp2_illegal_op,
+						/*  0x20 */ x86emuOp2_illegal_op,
+						/* mov reg32,creg (ring 0 PM) */
+						/*  0x21 */ x86emuOp2_illegal_op,
+						/* mov reg32,dreg (ring 0 PM) */
+						/*  0x22 */ x86emuOp2_illegal_op,
+						/* mov creg,reg32 (ring 0 PM) */
+						/*  0x23 */ x86emuOp2_illegal_op,
+						/* mov dreg,reg32 (ring 0 PM) */
+						/*  0x24 */ x86emuOp2_illegal_op,
+						/* mov reg32,treg (ring 0 PM) */
+/*  0x25 */ x86emuOp2_illegal_op,
+						/*  0x26 */ x86emuOp2_illegal_op,
+						/* mov treg,reg32 (ring 0 PM) */
+/*  0x27 */ x86emuOp2_illegal_op,
+/*  0x28 */ x86emuOp2_illegal_op,
+/*  0x29 */ x86emuOp2_illegal_op,
+/*  0x2a */ x86emuOp2_illegal_op,
+/*  0x2b */ x86emuOp2_illegal_op,
+/*  0x2c */ x86emuOp2_illegal_op,
+/*  0x2d */ x86emuOp2_illegal_op,
+/*  0x2e */ x86emuOp2_illegal_op,
+/*  0x2f */ x86emuOp2_illegal_op,
+/*  0x30 */ x86emuOp2_illegal_op,
+/*  0x31 */ x86emuOp2_rdtsc,
+/*  0x32 */ x86emuOp2_illegal_op,
+/*  0x33 */ x86emuOp2_illegal_op,
+/*  0x34 */ x86emuOp2_illegal_op,
+/*  0x35 */ x86emuOp2_illegal_op,
+/*  0x36 */ x86emuOp2_illegal_op,
+/*  0x37 */ x86emuOp2_illegal_op,
+/*  0x38 */ x86emuOp2_illegal_op,
+/*  0x39 */ x86emuOp2_illegal_op,
+/*  0x3a */ x86emuOp2_illegal_op,
+/*  0x3b */ x86emuOp2_illegal_op,
+/*  0x3c */ x86emuOp2_illegal_op,
+/*  0x3d */ x86emuOp2_illegal_op,
+/*  0x3e */ x86emuOp2_illegal_op,
+/*  0x3f */ x86emuOp2_illegal_op,
+/*  0x40 */ x86emuOp2_illegal_op,
+/*  0x41 */ x86emuOp2_illegal_op,
+/*  0x42 */ x86emuOp2_illegal_op,
+/*  0x43 */ x86emuOp2_illegal_op,
+/*  0x44 */ x86emuOp2_illegal_op,
+/*  0x45 */ x86emuOp2_illegal_op,
+/*  0x46 */ x86emuOp2_illegal_op,
+/*  0x47 */ x86emuOp2_illegal_op,
+/*  0x48 */ x86emuOp2_illegal_op,
+/*  0x49 */ x86emuOp2_illegal_op,
+/*  0x4a */ x86emuOp2_illegal_op,
+/*  0x4b */ x86emuOp2_illegal_op,
+/*  0x4c */ x86emuOp2_illegal_op,
+/*  0x4d */ x86emuOp2_illegal_op,
+/*  0x4e */ x86emuOp2_illegal_op,
+/*  0x4f */ x86emuOp2_illegal_op,
+/*  0x50 */ x86emuOp2_illegal_op,
+/*  0x51 */ x86emuOp2_illegal_op,
+/*  0x52 */ x86emuOp2_illegal_op,
+/*  0x53 */ x86emuOp2_illegal_op,
+/*  0x54 */ x86emuOp2_illegal_op,
+/*  0x55 */ x86emuOp2_illegal_op,
+/*  0x56 */ x86emuOp2_illegal_op,
+/*  0x57 */ x86emuOp2_illegal_op,
+/*  0x58 */ x86emuOp2_illegal_op,
+/*  0x59 */ x86emuOp2_illegal_op,
+/*  0x5a */ x86emuOp2_illegal_op,
+/*  0x5b */ x86emuOp2_illegal_op,
+/*  0x5c */ x86emuOp2_illegal_op,
+/*  0x5d */ x86emuOp2_illegal_op,
+/*  0x5e */ x86emuOp2_illegal_op,
+/*  0x5f */ x86emuOp2_illegal_op,
+/*  0x60 */ x86emuOp2_illegal_op,
+/*  0x61 */ x86emuOp2_illegal_op,
+/*  0x62 */ x86emuOp2_illegal_op,
+/*  0x63 */ x86emuOp2_illegal_op,
+/*  0x64 */ x86emuOp2_illegal_op,
+/*  0x65 */ x86emuOp2_illegal_op,
+/*  0x66 */ x86emuOp2_illegal_op,
+/*  0x67 */ x86emuOp2_illegal_op,
+/*  0x68 */ x86emuOp2_illegal_op,
+/*  0x69 */ x86emuOp2_illegal_op,
+/*  0x6a */ x86emuOp2_illegal_op,
+/*  0x6b */ x86emuOp2_illegal_op,
+/*  0x6c */ x86emuOp2_illegal_op,
+/*  0x6d */ x86emuOp2_illegal_op,
+/*  0x6e */ x86emuOp2_illegal_op,
+/*  0x6f */ x86emuOp2_illegal_op,
+/*  0x70 */ x86emuOp2_illegal_op,
+/*  0x71 */ x86emuOp2_illegal_op,
+/*  0x72 */ x86emuOp2_illegal_op,
+/*  0x73 */ x86emuOp2_illegal_op,
+/*  0x74 */ x86emuOp2_illegal_op,
+/*  0x75 */ x86emuOp2_illegal_op,
+/*  0x76 */ x86emuOp2_illegal_op,
+/*  0x77 */ x86emuOp2_illegal_op,
+/*  0x78 */ x86emuOp2_illegal_op,
+/*  0x79 */ x86emuOp2_illegal_op,
+/*  0x7a */ x86emuOp2_illegal_op,
+/*  0x7b */ x86emuOp2_illegal_op,
+/*  0x7c */ x86emuOp2_illegal_op,
+/*  0x7d */ x86emuOp2_illegal_op,
+/*  0x7e */ x86emuOp2_illegal_op,
+/*  0x7f */ x86emuOp2_illegal_op,
+/*  0x80 */ x86emuOp2_long_jump,
+/*  0x81 */ x86emuOp2_long_jump,
+/*  0x82 */ x86emuOp2_long_jump,
+/*  0x83 */ x86emuOp2_long_jump,
+/*  0x84 */ x86emuOp2_long_jump,
+/*  0x85 */ x86emuOp2_long_jump,
+/*  0x86 */ x86emuOp2_long_jump,
+/*  0x87 */ x86emuOp2_long_jump,
+/*  0x88 */ x86emuOp2_long_jump,
+/*  0x89 */ x86emuOp2_long_jump,
+/*  0x8a */ x86emuOp2_long_jump,
+/*  0x8b */ x86emuOp2_long_jump,
+/*  0x8c */ x86emuOp2_long_jump,
+/*  0x8d */ x86emuOp2_long_jump,
+/*  0x8e */ x86emuOp2_long_jump,
+/*  0x8f */ x86emuOp2_long_jump,
+/*  0x90 */ x86emuOp2_set_byte,
+/*  0x91 */ x86emuOp2_set_byte,
+/*  0x92 */ x86emuOp2_set_byte,
+/*  0x93 */ x86emuOp2_set_byte,
+/*  0x94 */ x86emuOp2_set_byte,
+/*  0x95 */ x86emuOp2_set_byte,
+/*  0x96 */ x86emuOp2_set_byte,
+/*  0x97 */ x86emuOp2_set_byte,
+/*  0x98 */ x86emuOp2_set_byte,
+/*  0x99 */ x86emuOp2_set_byte,
+/*  0x9a */ x86emuOp2_set_byte,
+/*  0x9b */ x86emuOp2_set_byte,
+/*  0x9c */ x86emuOp2_set_byte,
+/*  0x9d */ x86emuOp2_set_byte,
+/*  0x9e */ x86emuOp2_set_byte,
+/*  0x9f */ x86emuOp2_set_byte,
+/*  0xa0 */ x86emuOp2_push_FS,
+/*  0xa1 */ x86emuOp2_pop_FS,
+/*  0xa2 */ x86emuOp2_illegal_op,
+/*  0xa3 */ x86emuOp2_bt_R,
+/*  0xa4 */ x86emuOp2_shld_IMM,
+/*  0xa5 */ x86emuOp2_shld_CL,
+/*  0xa6 */ x86emuOp2_illegal_op,
+/*  0xa7 */ x86emuOp2_illegal_op,
+/*  0xa8 */ x86emuOp2_push_GS,
+/*  0xa9 */ x86emuOp2_pop_GS,
+/*  0xaa */ x86emuOp2_illegal_op,
+/*  0xab */ x86emuOp2_bt_R,
+/*  0xac */ x86emuOp2_shrd_IMM,
+/*  0xad */ x86emuOp2_shrd_CL,
+/*  0xae */ x86emuOp2_illegal_op,
+/*  0xaf */ x86emuOp2_imul_R_RM,
+						/*  0xb0 */ x86emuOp2_illegal_op,
+						/* TODO: cmpxchg */
+						/*  0xb1 */ x86emuOp2_illegal_op,
+						/* TODO: cmpxchg */
+/*  0xb2 */ x86emuOp2_lss_R_IMM,
+/*  0xb3 */ x86emuOp2_btr_R,
+/*  0xb4 */ x86emuOp2_lfs_R_IMM,
+/*  0xb5 */ x86emuOp2_lgs_R_IMM,
+/*  0xb6 */ x86emuOp2_movzx_byte_R_RM,
+/*  0xb7 */ x86emuOp2_movzx_word_R_RM,
+/*  0xb8 */ x86emuOp2_illegal_op,
+/*  0xb9 */ x86emuOp2_illegal_op,
+/*  0xba */ x86emuOp2_btX_I,
+/*  0xbb */ x86emuOp2_btc_R,
+/*  0xbc */ x86emuOp2_bsf,
+/*  0xbd */ x86emuOp2_bsr,
+/*  0xbe */ x86emuOp2_movsx_byte_R_RM,
+/*  0xbf */ x86emuOp2_movsx_word_R_RM,
+						/*  0xc0 */ x86emuOp2_illegal_op,
+						/* TODO: xadd */
+						/*  0xc1 */ x86emuOp2_illegal_op,
+						/* TODO: xadd */
+/*  0xc2 */ x86emuOp2_illegal_op,
+/*  0xc3 */ x86emuOp2_illegal_op,
+/*  0xc4 */ x86emuOp2_illegal_op,
+/*  0xc5 */ x86emuOp2_illegal_op,
+/*  0xc6 */ x86emuOp2_illegal_op,
+/*  0xc7 */ x86emuOp2_illegal_op,
+						/*  0xc8 */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xc9 */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xca */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xcb */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xcc */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xcd */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xce */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+						/*  0xcf */ x86emuOp2_illegal_op,
+						/* TODO: bswap */
+/*  0xd0 */ x86emuOp2_illegal_op,
+/*  0xd1 */ x86emuOp2_illegal_op,
+/*  0xd2 */ x86emuOp2_illegal_op,
+/*  0xd3 */ x86emuOp2_illegal_op,
+/*  0xd4 */ x86emuOp2_illegal_op,
+/*  0xd5 */ x86emuOp2_illegal_op,
+/*  0xd6 */ x86emuOp2_illegal_op,
+/*  0xd7 */ x86emuOp2_illegal_op,
+/*  0xd8 */ x86emuOp2_illegal_op,
+/*  0xd9 */ x86emuOp2_illegal_op,
+/*  0xda */ x86emuOp2_illegal_op,
+/*  0xdb */ x86emuOp2_illegal_op,
+/*  0xdc */ x86emuOp2_illegal_op,
+/*  0xdd */ x86emuOp2_illegal_op,
+/*  0xde */ x86emuOp2_illegal_op,
+/*  0xdf */ x86emuOp2_illegal_op,
+/*  0xe0 */ x86emuOp2_illegal_op,
+/*  0xe1 */ x86emuOp2_illegal_op,
+/*  0xe2 */ x86emuOp2_illegal_op,
+/*  0xe3 */ x86emuOp2_illegal_op,
+/*  0xe4 */ x86emuOp2_illegal_op,
+/*  0xe5 */ x86emuOp2_illegal_op,
+/*  0xe6 */ x86emuOp2_illegal_op,
+/*  0xe7 */ x86emuOp2_illegal_op,
+/*  0xe8 */ x86emuOp2_illegal_op,
+/*  0xe9 */ x86emuOp2_illegal_op,
+/*  0xea */ x86emuOp2_illegal_op,
+/*  0xeb */ x86emuOp2_illegal_op,
+/*  0xec */ x86emuOp2_illegal_op,
+/*  0xed */ x86emuOp2_illegal_op,
+/*  0xee */ x86emuOp2_illegal_op,
+/*  0xef */ x86emuOp2_illegal_op,
+/*  0xf0 */ x86emuOp2_illegal_op,
+/*  0xf1 */ x86emuOp2_illegal_op,
+/*  0xf2 */ x86emuOp2_illegal_op,
+/*  0xf3 */ x86emuOp2_illegal_op,
+/*  0xf4 */ x86emuOp2_illegal_op,
+/*  0xf5 */ x86emuOp2_illegal_op,
+/*  0xf6 */ x86emuOp2_illegal_op,
+/*  0xf7 */ x86emuOp2_illegal_op,
+/*  0xf8 */ x86emuOp2_illegal_op,
+/*  0xf9 */ x86emuOp2_illegal_op,
+/*  0xfa */ x86emuOp2_illegal_op,
+/*  0xfb */ x86emuOp2_illegal_op,
+/*  0xfc */ x86emuOp2_illegal_op,
+/*  0xfd */ x86emuOp2_illegal_op,
+/*  0xfe */ x86emuOp2_illegal_op,
+/*  0xff */ x86emuOp2_illegal_op,
+};
diff --git a/util/vgabios/x86emu/src/x86emu/prim_ops.c b/util/vgabios/x86emu/src/x86emu/prim_ops.c
new file mode 100644
index 0000000000..d1d4be848c
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/prim_ops.c
@@ -0,0 +1,3071 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file contains the code to implement the primitive
+*				machine operations used by the emulation code in ops.c
+*
+* Carry Chain Calculation
+*
+* This represents a somewhat expensive calculation which is
+* apparently required to emulate the setting of the OF and AF flag.
+* The latter is not so important, but the former is.  The overflow
+* flag is the XOR of the top two bits of the carry chain for an
+* addition (similar for subtraction).  Since we do not want to
+* simulate the addition in a bitwise manner, we try to calculate the
+* carry chain given the two operands and the result.
+*
+* So, given the following table, which represents the addition of two
+* bits, we can derive a formula for the carry chain.
+*
+* a   b   cin   r     cout
+* 0   0   0     0     0
+* 0   0   1     1     0
+* 0   1   0     1     0
+* 0   1   1     0     1
+* 1   0   0     1     0
+* 1   0   1     0     1
+* 1   1   0     0     1
+* 1   1   1     1     1
+*
+* Construction of table for cout:
+*
+* ab
+* r  \  00   01   11  10
+* |------------------
+* 0  |   0    1    1   1
+* 1  |   0    0    1   0
+*
+* By inspection, one gets:  cc = ab +  r'(a + b)
+*
+* That represents alot of operations, but NO CHOICE....
+*
+* Borrow Chain Calculation.
+*
+* The following table represents the subtraction of two bits, from
+* which we can derive a formula for the borrow chain.
+*
+* a   b   bin   r     bout
+* 0   0   0     0     0
+* 0   0   1     1     1
+* 0   1   0     1     1
+* 0   1   1     0     1
+* 1   0   0     1     0
+* 1   0   1     0     0
+* 1   1   0     0     0
+* 1   1   1     1     1
+*
+* Construction of table for cout:
+*
+* ab
+* r  \  00   01   11  10
+* |------------------
+* 0  |   0    1    0   0
+* 1  |   1    1    1   0
+*
+* By inspection, one gets:  bc = a'b +  r(a' + b)
+*
+****************************************************************************/
+
+#define	PRIM_OPS_NO_REDEFINE_ASM
+#include "x86emu/x86emui.h"
+
+/*------------------------- Global Variables ------------------------------*/
+
+#ifndef	__HAVE_INLINE_ASSEMBLER__
+
+static u32 x86emu_parity_tab[8] = {
+	0x96696996,
+	0x69969669,
+	0x69969669,
+	0x96696996,
+	0x69969669,
+	0x96696996,
+	0x96696996,
+	0x69969669,
+};
+
+#endif
+
+#define PARITY(x)   (((x86emu_parity_tab[(x) / 32] >> ((x) % 32)) & 1) == 0)
+#define XOR2(x) 	(((x) ^ ((x)>>1)) & 0x1)
+
+/*----------------------------- Implementation ----------------------------*/
+
+#ifndef	__HAVE_INLINE_ASSEMBLER__
+
+/****************************************************************************
+REMARKS:
+Implements the AAA instruction and side effects.
+****************************************************************************/
+u16 aaa_word(u16 d)
+{
+	u16 res;
+	if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) {
+		d += 0x6;
+		d += 0x100;
+		SET_FLAG(F_AF);
+		SET_FLAG(F_CF);
+	} else {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_AF);
+	}
+	res = (u16) (d & 0xFF0F);
+	CLEAR_FLAG(F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AAA instruction and side effects.
+****************************************************************************/
+u16 aas_word(u16 d)
+{
+	u16 res;
+	if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) {
+		d -= 0x6;
+		d -= 0x100;
+		SET_FLAG(F_AF);
+		SET_FLAG(F_CF);
+	} else {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_AF);
+	}
+	res = (u16) (d & 0xFF0F);
+	CLEAR_FLAG(F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AAD instruction and side effects.
+****************************************************************************/
+u16 aad_word(u16 d)
+{
+	u16 l;
+	u8 hb, lb;
+
+	hb = (u8) ((d >> 8) & 0xff);
+	lb = (u8) ((d & 0xff));
+	l = (u16) ((lb + 10 * hb) & 0xFF);
+
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(l & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(l == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF);
+	return l;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AAM instruction and side effects.
+****************************************************************************/
+u16 aam_word(u8 d)
+{
+	u16 h, l;
+
+	h = (u16) (d / 10);
+	l = (u16) (d % 10);
+	l |= (u16) (h << 8);
+
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(l & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(l == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF);
+	return l;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADC instruction and side effects.
+****************************************************************************/
+u8 adc_byte(u8 d, u8 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	if (ACCESS_FLAG(F_CF))
+		res = 1 + d + s;
+	else
+		res = d + s;
+
+	CONDITIONAL_SET_FLAG(res & 0x100, F_CF);
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (s & d) | ((~res) & (s | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADC instruction and side effects.
+****************************************************************************/
+u16 adc_word(u16 d, u16 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	if (ACCESS_FLAG(F_CF))
+		res = 1 + d + s;
+	else
+		res = d + s;
+
+	CONDITIONAL_SET_FLAG(res & 0x10000, F_CF);
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (s & d) | ((~res) & (s | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADC instruction and side effects.
+****************************************************************************/
+u32 adc_long(u32 d, u32 s)
+{
+	register u32 lo;	/* all operands in native machine order */
+	register u32 hi;
+	register u32 res;
+	register u32 cc;
+
+	if (ACCESS_FLAG(F_CF)) {
+		lo = 1 + (d & 0xFFFF) + (s & 0xFFFF);
+		res = 1 + d + s;
+	} else {
+		lo = (d & 0xFFFF) + (s & 0xFFFF);
+		res = d + s;
+	}
+	hi = (lo >> 16) + (d >> 16) + (s >> 16);
+
+	CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF);
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (s & d) | ((~res) & (s | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADD instruction and side effects.
+****************************************************************************/
+u8 add_byte(u8 d, u8 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	res = d + s;
+	CONDITIONAL_SET_FLAG(res & 0x100, F_CF);
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (s & d) | ((~res) & (s | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADD instruction and side effects.
+****************************************************************************/
+u16 add_word(u16 d, u16 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	res = d + s;
+	CONDITIONAL_SET_FLAG(res & 0x10000, F_CF);
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (s & d) | ((~res) & (s | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADD instruction and side effects.
+****************************************************************************/
+u32 add_long(u32 d, u32 s)
+{
+	register u32 lo;	/* all operands in native machine order */
+	register u32 hi;
+	register u32 res;
+	register u32 cc;
+
+	lo = (d & 0xFFFF) + (s & 0xFFFF);
+	res = d + s;
+	hi = (lo >> 16) + (d >> 16) + (s >> 16);
+
+	CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF);
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (s & d) | ((~res) & (s | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AND instruction and side effects.
+****************************************************************************/
+u8 and_byte(u8 d, u8 s)
+{
+	register u8 res;	/* all operands in native machine order */
+
+	res = d & s;
+
+	/* set the flags  */
+	CLEAR_FLAG(F_OF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AND instruction and side effects.
+****************************************************************************/
+u16 and_word(u16 d, u16 s)
+{
+	register u16 res;	/* all operands in native machine order */
+
+	res = d & s;
+
+	/* set the flags  */
+	CLEAR_FLAG(F_OF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AND instruction and side effects.
+****************************************************************************/
+u32 and_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+
+	res = d & s;
+
+	/* set the flags  */
+	CLEAR_FLAG(F_OF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the CMP instruction and side effects.
+****************************************************************************/
+u8 cmp_byte(u8 d, u8 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - s;
+	CLEAR_FLAG(F_CF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x80, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the CMP instruction and side effects.
+****************************************************************************/
+u16 cmp_word(u16 d, u16 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the CMP instruction and side effects.
+****************************************************************************/
+u32 cmp_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DAA instruction and side effects.
+****************************************************************************/
+u8 daa_byte(u8 d)
+{
+	u32 res = d;
+	if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) {
+		res += 6;
+		SET_FLAG(F_AF);
+	}
+	if (res > 0x9F || ACCESS_FLAG(F_CF)) {
+		res += 0x60;
+		SET_FLAG(F_CF);
+	}
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xFF) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DAS instruction and side effects.
+****************************************************************************/
+u8 das_byte(u8 d)
+{
+	if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) {
+		d -= 6;
+		SET_FLAG(F_AF);
+	}
+	if (d > 0x9F || ACCESS_FLAG(F_CF)) {
+		d -= 0x60;
+		SET_FLAG(F_CF);
+	}
+	CONDITIONAL_SET_FLAG(d & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(d == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(d & 0xff), F_PF);
+	return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DEC instruction and side effects.
+****************************************************************************/
+u8 dec_byte(u8 d)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - 1;
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	/* based on sub_byte, uses s==1.  */
+	bc = (res & (~d | 1)) | (~d & 1);
+	/* carry flag unchanged */
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DEC instruction and side effects.
+****************************************************************************/
+u16 dec_word(u16 d)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - 1;
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	/* based on the sub_byte routine, with s==1 */
+	bc = (res & (~d | 1)) | (~d & 1);
+	/* carry flag unchanged */
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DEC instruction and side effects.
+****************************************************************************/
+u32 dec_long(u32 d)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - 1;
+
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | 1)) | (~d & 1);
+	/* carry flag unchanged */
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the INC instruction and side effects.
+****************************************************************************/
+u8 inc_byte(u8 d)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	res = d + 1;
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = ((1 & d) | (~res)) & (1 | d);
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the INC instruction and side effects.
+****************************************************************************/
+u16 inc_word(u16 d)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	res = d + 1;
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (1 & d) | ((~res) & (1 | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the INC instruction and side effects.
+****************************************************************************/
+u32 inc_long(u32 d)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 cc;
+
+	res = d + 1;
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the carry chain  SEE NOTE AT TOP. */
+	cc = (1 & d) | ((~res) & (1 | d));
+	CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u8 or_byte(u8 d, u8 s)
+{
+	register u8 res;	/* all operands in native machine order */
+
+	res = d | s;
+	CLEAR_FLAG(F_OF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u16 or_word(u16 d, u16 s)
+{
+	register u16 res;	/* all operands in native machine order */
+
+	res = d | s;
+	/* set the carry flag to be bit 8 */
+	CLEAR_FLAG(F_OF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u32 or_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+
+	res = d | s;
+
+	/* set the carry flag to be bit 8 */
+	CLEAR_FLAG(F_OF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u8 neg_byte(u8 s)
+{
+	register u8 res;
+	register u8 bc;
+
+	CONDITIONAL_SET_FLAG(s != 0, F_CF);
+	res = (u8) - s;
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+	/* calculate the borrow chain --- modified such that d=0.
+	   substitutiing d=0 into     bc= res&(~d|s)|(~d&s);
+	   (the one used for sub) and simplifying, since ~d=0xff...,
+	   ~d|s == 0xffff..., and res&0xfff... == res.  Similarly
+	   ~d&s == s.  So the simplified result is: */
+	bc = res | s;
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u16 neg_word(u16 s)
+{
+	register u16 res;
+	register u16 bc;
+
+	CONDITIONAL_SET_FLAG(s != 0, F_CF);
+	res = (u16) - s;
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain --- modified such that d=0.
+	   substitutiing d=0 into     bc= res&(~d|s)|(~d&s);
+	   (the one used for sub) and simplifying, since ~d=0xff...,
+	   ~d|s == 0xffff..., and res&0xfff... == res.  Similarly
+	   ~d&s == s.  So the simplified result is: */
+	bc = res | s;
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u32 neg_long(u32 s)
+{
+	register u32 res;
+	register u32 bc;
+
+	CONDITIONAL_SET_FLAG(s != 0, F_CF);
+	res = (u32) - s;
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain --- modified such that d=0.
+	   substitutiing d=0 into     bc= res&(~d|s)|(~d&s);
+	   (the one used for sub) and simplifying, since ~d=0xff...,
+	   ~d|s == 0xffff..., and res&0xfff... == res.  Similarly
+	   ~d&s == s.  So the simplified result is: */
+	bc = res | s;
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the NOT instruction and side effects.
+****************************************************************************/
+u8 not_byte(u8 s)
+{
+	return ~s;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the NOT instruction and side effects.
+****************************************************************************/
+u16 not_word(u16 s)
+{
+	return ~s;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the NOT instruction and side effects.
+****************************************************************************/
+u32 not_long(u32 s)
+{
+	return ~s;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCL instruction and side effects.
+****************************************************************************/
+u8 rcl_byte(u8 d, u8 s)
+{
+	register unsigned int res, cnt, mask, cf;
+
+	/* s is the rotate distance.  It varies from 0 - 8. */
+	/* have
+
+	   CF  B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 
+
+	   want to rotate through the carry by "s" bits.  We could 
+	   loop, but that's inefficient.  So the width is 9,
+	   and we split into three parts:
+
+	   The new carry flag   (was B_n)
+	   the stuff in B_n-1 .. B_0
+	   the stuff in B_7 .. B_n+1
+
+	   The new rotate is done mod 9, and given this,
+	   for a rotation of n bits (mod 9) the new carry flag is
+	   then located n bits from the MSB.  The low part is 
+	   then shifted up cnt bits, and the high part is or'd
+	   in.  Using CAPS for new values, and lowercase for the 
+	   original values, this can be expressed as:
+
+	   IF n > 0 
+	   1) CF <-  b_(8-n)
+	   2) B_(7) .. B_(n)  <-  b_(8-(n+1)) .. b_0
+	   3) B_(n-1) <- cf
+	   4) B_(n-2) .. B_0 <-  b_7 .. b_(8-(n-1))
+	 */
+	res = d;
+	if ((cnt = s % 9) != 0) {
+		/* extract the new CARRY FLAG. */
+		/* CF <-  b_(8-n)             */
+		cf = (d >> (8 - cnt)) & 0x1;
+
+		/* get the low stuff which rotated 
+		   into the range B_7 .. B_cnt */
+		/* B_(7) .. B_(n)  <-  b_(8-(n+1)) .. b_0  */
+		/* note that the right hand side done by the mask */
+		res = (d << cnt) & 0xff;
+
+		/* now the high stuff which rotated around 
+		   into the positions B_cnt-2 .. B_0 */
+		/* B_(n-2) .. B_0 <-  b_7 .. b_(8-(n-1)) */
+		/* shift it downward, 7-(n-2) = 9-n positions. 
+		   and mask off the result before or'ing in. 
+		 */
+		mask = (1 << (cnt - 1)) - 1;
+		res |= (d >> (9 - cnt)) & mask;
+
+		/* if the carry flag was set, or it in.  */
+		if (ACCESS_FLAG(F_CF)) {	/* carry flag is set */
+			/*  B_(n-1) <- cf */
+			res |= 1 << (cnt - 1);
+		}
+		/* set the new carry flag, based on the variable "cf" */
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		/* OVERFLOW is set *IFF* cnt==1, then it is the 
+		   xor of CF and the most significant bit.  Blecck. */
+		/* parenthesized this expression since it appears to
+		   be causing OF to be misset */
+		CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 6) & 0x2)), F_OF);
+
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCL instruction and side effects.
+****************************************************************************/
+u16 rcl_word(u16 d, u8 s)
+{
+	register unsigned int res, cnt, mask, cf;
+
+	res = d;
+	if ((cnt = s % 17) != 0) {
+		cf = (d >> (16 - cnt)) & 0x1;
+		res = (d << cnt) & 0xffff;
+		mask = (1 << (cnt - 1)) - 1;
+		res |= (d >> (17 - cnt)) & mask;
+		if (ACCESS_FLAG(F_CF)) {
+			res |= 1 << (cnt - 1);
+		}
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 14) & 0x2)), F_OF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCL instruction and side effects.
+****************************************************************************/
+u32 rcl_long(u32 d, u8 s)
+{
+	register u32 res, cnt, mask, cf;
+
+	res = d;
+	if ((cnt = s % 33) != 0) {
+		cf = (d >> (32 - cnt)) & 0x1;
+		res = (d << cnt) & 0xffffffff;
+		mask = (1 << (cnt - 1)) - 1;
+		res |= (d >> (33 - cnt)) & mask;
+		if (ACCESS_FLAG(F_CF)) {	/* carry flag is set */
+			res |= 1 << (cnt - 1);
+		}
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 30) & 0x2)), F_OF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCR instruction and side effects.
+****************************************************************************/
+u8 rcr_byte(u8 d, u8 s)
+{
+	u32 res, cnt;
+	u32 mask, cf, ocf = 0;
+
+	/* rotate right through carry */
+	/* 
+	   s is the rotate distance.  It varies from 0 - 8.
+	   d is the byte object rotated.  
+
+	   have 
+
+	   CF  B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 
+
+	   The new rotate is done mod 9, and given this,
+	   for a rotation of n bits (mod 9) the new carry flag is
+	   then located n bits from the LSB.  The low part is 
+	   then shifted up cnt bits, and the high part is or'd
+	   in.  Using CAPS for new values, and lowercase for the 
+	   original values, this can be expressed as:
+
+	   IF n > 0 
+	   1) CF <-  b_(n-1)
+	   2) B_(8-(n+1)) .. B_(0)  <-  b_(7) .. b_(n)
+	   3) B_(8-n) <- cf
+	   4) B_(7) .. B_(8-(n-1)) <-  b_(n-2) .. b_(0)
+	 */
+	res = d;
+	if ((cnt = s % 9) != 0) {
+		/* extract the new CARRY FLAG. */
+		/* CF <-  b_(n-1)              */
+		if (cnt == 1) {
+			cf = d & 0x1;
+			/* note hackery here.  Access_flag(..) evaluates to either
+			   0 if flag not set
+			   non-zero if flag is set.
+			   doing access_flag(..) != 0 casts that into either 
+			   0..1 in any representation of the flags register
+			   (i.e. packed bit array or unpacked.)
+			 */
+			ocf = ACCESS_FLAG(F_CF) != 0;
+		} else
+			cf = (d >> (cnt - 1)) & 0x1;
+
+		/* B_(8-(n+1)) .. B_(0)  <-  b_(7) .. b_n  */
+		/* note that the right hand side done by the mask
+		   This is effectively done by shifting the 
+		   object to the right.  The result must be masked,
+		   in case the object came in and was treated 
+		   as a negative number.  Needed??? */
+
+		mask = (1 << (8 - cnt)) - 1;
+		res = (d >> cnt) & mask;
+
+		/* now the high stuff which rotated around 
+		   into the positions B_cnt-2 .. B_0 */
+		/* B_(7) .. B_(8-(n-1)) <-  b_(n-2) .. b_(0) */
+		/* shift it downward, 7-(n-2) = 9-n positions. 
+		   and mask off the result before or'ing in. 
+		 */
+		res |= (d << (9 - cnt));
+
+		/* if the carry flag was set, or it in.  */
+		if (ACCESS_FLAG(F_CF)) {	/* carry flag is set */
+			/*  B_(8-n) <- cf */
+			res |= 1 << (8 - cnt);
+		}
+		/* set the new carry flag, based on the variable "cf" */
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		/* OVERFLOW is set *IFF* cnt==1, then it is the 
+		   xor of CF and the most significant bit.  Blecck. */
+		/* parenthesized... */
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 6) & 0x2)), F_OF);
+		}
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCR instruction and side effects.
+****************************************************************************/
+u16 rcr_word(u16 d, u8 s)
+{
+	u32 res, cnt;
+	u32 mask, cf, ocf = 0;
+
+	/* rotate right through carry */
+	res = d;
+	if ((cnt = s % 17) != 0) {
+		if (cnt == 1) {
+			cf = d & 0x1;
+			ocf = ACCESS_FLAG(F_CF) != 0;
+		} else
+			cf = (d >> (cnt - 1)) & 0x1;
+		mask = (1 << (16 - cnt)) - 1;
+		res = (d >> cnt) & mask;
+		res |= (d << (17 - cnt));
+		if (ACCESS_FLAG(F_CF)) {
+			res |= 1 << (16 - cnt);
+		}
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 14) & 0x2)), F_OF);
+		}
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCR instruction and side effects.
+****************************************************************************/
+u32 rcr_long(u32 d, u8 s)
+{
+	u32 res, cnt;
+	u32 mask, cf, ocf = 0;
+
+	/* rotate right through carry */
+	res = d;
+	if ((cnt = s % 33) != 0) {
+		if (cnt == 1) {
+			cf = d & 0x1;
+			ocf = ACCESS_FLAG(F_CF) != 0;
+		} else
+			cf = (d >> (cnt - 1)) & 0x1;
+		mask = (1 << (32 - cnt)) - 1;
+		res = (d >> cnt) & mask;
+		if (cnt != 1)
+			res |= (d << (33 - cnt));
+		if (ACCESS_FLAG(F_CF)) {	/* carry flag is set */
+			res |= 1 << (32 - cnt);
+		}
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 30) & 0x2)), F_OF);
+		}
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROL instruction and side effects.
+****************************************************************************/
+u8 rol_byte(u8 d, u8 s)
+{
+	register unsigned int res, cnt, mask;
+
+	/* rotate left */
+	/* 
+	   s is the rotate distance.  It varies from 0 - 8.
+	   d is the byte object rotated.  
+
+	   have 
+
+	   CF  B_7 ... B_0 
+
+	   The new rotate is done mod 8.
+	   Much simpler than the "rcl" or "rcr" operations.
+
+	   IF n > 0 
+	   1) B_(7) .. B_(n)  <-  b_(8-(n+1)) .. b_(0)
+	   2) B_(n-1) .. B_(0) <-  b_(7) .. b_(8-n)
+	 */
+	res = d;
+	if ((cnt = s % 8) != 0) {
+		/* B_(7) .. B_(n)  <-  b_(8-(n+1)) .. b_(0) */
+		res = (d << cnt);
+
+		/* B_(n-1) .. B_(0) <-  b_(7) .. b_(8-n) */
+		mask = (1 << cnt) - 1;
+		res |= (d >> (8 - cnt)) & mask;
+
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+		/* OVERFLOW is set *IFF* s==1, then it is the
+		   xor of CF and the most significant bit.  Blecck. */
+		CONDITIONAL_SET_FLAG(s == 1 &&
+				     XOR2((res & 0x1) + ((res >> 6) & 0x2)), F_OF);
+	}
+	if (s != 0) {
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROL instruction and side effects.
+****************************************************************************/
+u16 rol_word(u16 d, u8 s)
+{
+	register unsigned int res, cnt, mask;
+
+	res = d;
+	if ((cnt = s % 16) != 0) {
+		res = (d << cnt);
+		mask = (1 << cnt) - 1;
+		res |= (d >> (16 - cnt)) & mask;
+		CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+		CONDITIONAL_SET_FLAG(s == 1 &&
+				     XOR2((res & 0x1) + ((res >> 14) & 0x2)), F_OF);
+	}
+	if (s != 0) {
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROL instruction and side effects.
+****************************************************************************/
+u32 rol_long(u32 d, u8 s)
+{
+	register u32 res, cnt, mask;
+
+	res = d;
+	if ((cnt = s % 32) != 0) {
+		res = (d << cnt);
+		mask = (1 << cnt) - 1;
+		res |= (d >> (32 - cnt)) & mask;
+		CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+		CONDITIONAL_SET_FLAG(s == 1 &&
+				     XOR2((res & 0x1) + ((res >> 30) & 0x2)), F_OF);
+	}
+	if (s != 0) {
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROR instruction and side effects.
+****************************************************************************/
+u8 ror_byte(u8 d, u8 s)
+{
+	register unsigned int res, cnt, mask;
+
+	/* rotate right */
+	/* 
+	   s is the rotate distance.  It varies from 0 - 8.
+	   d is the byte object rotated.  
+
+	   have 
+
+	   B_7 ... B_0 
+
+	   The rotate is done mod 8.
+
+	   IF n > 0 
+	   1) B_(8-(n+1)) .. B_(0)  <-  b_(7) .. b_(n)
+	   2) B_(7) .. B_(8-n) <-  b_(n-1) .. b_(0)
+	 */
+	res = d;
+	if ((cnt = s % 8) != 0) {	/* not a typo, do nada if cnt==0 */
+		/* B_(7) .. B_(8-n) <-  b_(n-1) .. b_(0) */
+		res = (d << (8 - cnt));
+
+		/* B_(8-(n+1)) .. B_(0)  <-  b_(7) .. b_(n) */
+		mask = (1 << (8 - cnt)) - 1;
+		res |= (d >> (cnt)) & mask;
+
+		/* set the new carry flag, Note that it is the low order 
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x80, F_CF);
+		/* OVERFLOW is set *IFF* s==1, then it is the
+		   xor of the two most significant bits.  Blecck. */
+		CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 6), F_OF);
+	} else if (s != 0) {
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x80, F_CF);
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROR instruction and side effects.
+****************************************************************************/
+u16 ror_word(u16 d, u8 s)
+{
+	register unsigned int res, cnt, mask;
+
+	res = d;
+	if ((cnt = s % 16) != 0) {
+		res = (d << (16 - cnt));
+		mask = (1 << (16 - cnt)) - 1;
+		res |= (d >> (cnt)) & mask;
+		CONDITIONAL_SET_FLAG(res & 0x8000, F_CF);
+		CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 14), F_OF);
+	} else if (s != 0) {
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x8000, F_CF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROR instruction and side effects.
+****************************************************************************/
+u32 ror_long(u32 d, u8 s)
+{
+	register u32 res, cnt, mask;
+
+	res = d;
+	if ((cnt = s % 32) != 0) {
+		res = (d << (32 - cnt));
+		mask = (1 << (32 - cnt)) - 1;
+		res |= (d >> (cnt)) & mask;
+		CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF);
+		CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 30), F_OF);
+	} else if (s != 0) {
+		/* set the new carry flag, Note that it is the low order
+		   bit of the result!!!                               */
+		CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHL instruction and side effects.
+****************************************************************************/
+u8 shl_byte(u8 d, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 8) {
+		cnt = s % 8;
+
+		/* last bit shifted out goes into carry flag */
+		if (cnt > 0) {
+			res = d << cnt;
+			cf = d & (1 << (8 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = (u8) d;
+		}
+
+		if (cnt == 1) {
+			/* Needs simplification. */
+			CONDITIONAL_SET_FLAG((((res & 0x80) == 0x80) ^
+					      (ACCESS_FLAG(F_CF) != 0)),
+					     /* was (M.x86.R_FLG&F_CF)==F_CF)), */
+					     F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80, F_CF);
+		CLEAR_FLAG(F_OF);
+		CLEAR_FLAG(F_SF);
+		SET_FLAG(F_PF);
+		SET_FLAG(F_ZF);
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHL instruction and side effects.
+****************************************************************************/
+u16 shl_word(u16 d, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 16) {
+		cnt = s % 16;
+		if (cnt > 0) {
+			res = d << cnt;
+			cf = d & (1 << (16 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = (u16) d;
+		}
+
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^
+					      (ACCESS_FLAG(F_CF) != 0)), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x8000, F_CF);
+		CLEAR_FLAG(F_OF);
+		CLEAR_FLAG(F_SF);
+		SET_FLAG(F_PF);
+		SET_FLAG(F_ZF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHL instruction and side effects.
+****************************************************************************/
+u32 shl_long(u32 d, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 32) {
+		cnt = s % 32;
+		if (cnt > 0) {
+			res = d << cnt;
+			cf = d & (1 << (32 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^
+					      (ACCESS_FLAG(F_CF) != 0)), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80000000, F_CF);
+		CLEAR_FLAG(F_OF);
+		CLEAR_FLAG(F_SF);
+		SET_FLAG(F_PF);
+		SET_FLAG(F_ZF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHR instruction and side effects.
+****************************************************************************/
+u8 shr_byte(u8 d, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 8) {
+		cnt = s % 8;
+		if (cnt > 0) {
+			cf = d & (1 << (cnt - 1));
+			res = d >> cnt;
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = (u8) d;
+		}
+
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(res >> 6), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CONDITIONAL_SET_FLAG((d >> (s - 1)) & 0x1, F_CF);
+		CLEAR_FLAG(F_OF);
+		CLEAR_FLAG(F_SF);
+		SET_FLAG(F_PF);
+		SET_FLAG(F_ZF);
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHR instruction and side effects.
+****************************************************************************/
+u16 shr_word(u16 d, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 16) {
+		cnt = s % 16;
+		if (cnt > 0) {
+			cf = d & (1 << (cnt - 1));
+			res = d >> cnt;
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+		SET_FLAG(F_ZF);
+		CLEAR_FLAG(F_SF);
+		CLEAR_FLAG(F_PF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHR instruction and side effects.
+****************************************************************************/
+u32 shr_long(u32 d, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 32) {
+		cnt = s % 32;
+		if (cnt > 0) {
+			cf = d & (1 << (cnt - 1));
+			res = d >> cnt;
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+		SET_FLAG(F_ZF);
+		CLEAR_FLAG(F_SF);
+		CLEAR_FLAG(F_PF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SAR instruction and side effects.
+****************************************************************************/
+u8 sar_byte(u8 d, u8 s)
+{
+	unsigned int cnt, res, cf, mask, sf;
+
+	res = d;
+	sf = d & 0x80;
+	cnt = s % 8;
+	if (cnt > 0 && cnt < 8) {
+		mask = (1 << (8 - cnt)) - 1;
+		cf = d & (1 << (cnt - 1));
+		res = (d >> cnt) & mask;
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		if (sf) {
+			res |= ~mask;
+		}
+		CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+		CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	} else if (cnt >= 8) {
+		if (sf) {
+			res = 0xff;
+			SET_FLAG(F_CF);
+			CLEAR_FLAG(F_ZF);
+			SET_FLAG(F_SF);
+			SET_FLAG(F_PF);
+		} else {
+			res = 0;
+			CLEAR_FLAG(F_CF);
+			SET_FLAG(F_ZF);
+			CLEAR_FLAG(F_SF);
+			CLEAR_FLAG(F_PF);
+		}
+	}
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SAR instruction and side effects.
+****************************************************************************/
+u16 sar_word(u16 d, u8 s)
+{
+	unsigned int cnt, res, cf, mask, sf;
+
+	sf = d & 0x8000;
+	cnt = s % 16;
+	res = d;
+	if (cnt > 0 && cnt < 16) {
+		mask = (1 << (16 - cnt)) - 1;
+		cf = d & (1 << (cnt - 1));
+		res = (d >> cnt) & mask;
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		if (sf) {
+			res |= ~mask;
+		}
+		CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+		CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+		CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	} else if (cnt >= 16) {
+		if (sf) {
+			res = 0xffff;
+			SET_FLAG(F_CF);
+			CLEAR_FLAG(F_ZF);
+			SET_FLAG(F_SF);
+			SET_FLAG(F_PF);
+		} else {
+			res = 0;
+			CLEAR_FLAG(F_CF);
+			SET_FLAG(F_ZF);
+			CLEAR_FLAG(F_SF);
+			CLEAR_FLAG(F_PF);
+		}
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SAR instruction and side effects.
+****************************************************************************/
+u32 sar_long(u32 d, u8 s)
+{
+	u32 cnt, res, cf, mask, sf;
+
+	sf = d & 0x80000000;
+	cnt = s % 32;
+	res = d;
+	if (cnt > 0 && cnt < 32) {
+		mask = (1 << (32 - cnt)) - 1;
+		cf = d & (1 << (cnt - 1));
+		res = (d >> cnt) & mask;
+		CONDITIONAL_SET_FLAG(cf, F_CF);
+		if (sf) {
+			res |= ~mask;
+		}
+		CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+		CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+		CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	} else if (cnt >= 32) {
+		if (sf) {
+			res = 0xffffffff;
+			SET_FLAG(F_CF);
+			CLEAR_FLAG(F_ZF);
+			SET_FLAG(F_SF);
+			SET_FLAG(F_PF);
+		} else {
+			res = 0;
+			CLEAR_FLAG(F_CF);
+			SET_FLAG(F_ZF);
+			CLEAR_FLAG(F_SF);
+			CLEAR_FLAG(F_PF);
+		}
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHLD instruction and side effects.
+****************************************************************************/
+u16 shld_word(u16 d, u16 fill, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 16) {
+		cnt = s % 16;
+		if (cnt > 0) {
+			res = (d << cnt) | (fill >> (16 - cnt));
+			cf = d & (1 << (16 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^
+					      (ACCESS_FLAG(F_CF) != 0)), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x8000, F_CF);
+		CLEAR_FLAG(F_OF);
+		CLEAR_FLAG(F_SF);
+		SET_FLAG(F_PF);
+		SET_FLAG(F_ZF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHLD instruction and side effects.
+****************************************************************************/
+u32 shld_long(u32 d, u32 fill, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 32) {
+		cnt = s % 32;
+		if (cnt > 0) {
+			res = (d << cnt) | (fill >> (32 - cnt));
+			cf = d & (1 << (32 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^
+					      (ACCESS_FLAG(F_CF) != 0)), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80000000, F_CF);
+		CLEAR_FLAG(F_OF);
+		CLEAR_FLAG(F_SF);
+		SET_FLAG(F_PF);
+		SET_FLAG(F_ZF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHRD instruction and side effects.
+****************************************************************************/
+u16 shrd_word(u16 d, u16 fill, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 16) {
+		cnt = s % 16;
+		if (cnt > 0) {
+			cf = d & (1 << (cnt - 1));
+			res = (d >> cnt) | (fill << (16 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+		SET_FLAG(F_ZF);
+		CLEAR_FLAG(F_SF);
+		CLEAR_FLAG(F_PF);
+	}
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHRD instruction and side effects.
+****************************************************************************/
+u32 shrd_long(u32 d, u32 fill, u8 s)
+{
+	unsigned int cnt, res, cf;
+
+	if (s < 32) {
+		cnt = s % 32;
+		if (cnt > 0) {
+			cf = d & (1 << (cnt - 1));
+			res = (d >> cnt) | (fill << (32 - cnt));
+			CONDITIONAL_SET_FLAG(cf, F_CF);
+			CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+			CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+			CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+		} else {
+			res = d;
+		}
+		if (cnt == 1) {
+			CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF);
+		} else {
+			CLEAR_FLAG(F_OF);
+		}
+	} else {
+		res = 0;
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+		SET_FLAG(F_ZF);
+		CLEAR_FLAG(F_SF);
+		CLEAR_FLAG(F_PF);
+	}
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SBB instruction and side effects.
+****************************************************************************/
+u8 sbb_byte(u8 d, u8 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	if (ACCESS_FLAG(F_CF))
+		res = d - s - 1;
+	else
+		res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x80, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SBB instruction and side effects.
+****************************************************************************/
+u16 sbb_word(u16 d, u16 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	if (ACCESS_FLAG(F_CF))
+		res = d - s - 1;
+	else
+		res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SBB instruction and side effects.
+****************************************************************************/
+u32 sbb_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	if (ACCESS_FLAG(F_CF))
+		res = d - s - 1;
+	else
+		res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SUB instruction and side effects.
+****************************************************************************/
+u8 sub_byte(u8 d, u8 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x80, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SUB instruction and side effects.
+****************************************************************************/
+u16 sub_word(u16 d, u16 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SUB instruction and side effects.
+****************************************************************************/
+u32 sub_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+	register u32 bc;
+
+	res = d - s;
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+	/* calculate the borrow chain.  See note at top */
+	bc = (res & (~d | s)) | (~d & s);
+	CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF);
+	CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+	CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the TEST instruction and side effects.
+****************************************************************************/
+void test_byte(u8 d, u8 s)
+{
+	register u32 res;	/* all operands in native machine order */
+
+	res = d & s;
+
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	/* AF == dont care */
+	CLEAR_FLAG(F_CF);
+}
+
+/****************************************************************************
+REMARKS:
+Implements the TEST instruction and side effects.
+****************************************************************************/
+void test_word(u16 d, u16 s)
+{
+	register u32 res;	/* all operands in native machine order */
+
+	res = d & s;
+
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	/* AF == dont care */
+	CLEAR_FLAG(F_CF);
+}
+
+/****************************************************************************
+REMARKS:
+Implements the TEST instruction and side effects.
+****************************************************************************/
+void test_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+
+	res = d & s;
+
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	/* AF == dont care */
+	CLEAR_FLAG(F_CF);
+}
+
+/****************************************************************************
+REMARKS:
+Implements the XOR instruction and side effects.
+****************************************************************************/
+u8 xor_byte(u8 d, u8 s)
+{
+	register u8 res;	/* all operands in native machine order */
+
+	res = d ^ s;
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the XOR instruction and side effects.
+****************************************************************************/
+u16 xor_word(u16 d, u16 s)
+{
+	register u16 res;	/* all operands in native machine order */
+
+	res = d ^ s;
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the XOR instruction and side effects.
+****************************************************************************/
+u32 xor_long(u32 d, u32 s)
+{
+	register u32 res;	/* all operands in native machine order */
+
+	res = d ^ s;
+	CLEAR_FLAG(F_OF);
+	CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+	CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void imul_byte(u8 s)
+{
+	s16 res = (s16) ((s8) M.x86.R_AL * (s8) s);
+
+	M.x86.R_AX = res;
+	if (((M.x86.R_AL & 0x80) == 0 && M.x86.R_AH == 0x00) ||
+	    ((M.x86.R_AL & 0x80) != 0 && M.x86.R_AH == 0xFF)) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	} else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void imul_word(u16 s)
+{
+	s32 res = (s16) M.x86.R_AX * (s16) s;
+
+	M.x86.R_AX = (u16) res;
+	M.x86.R_DX = (u16) (res >> 16);
+	if (((M.x86.R_AX & 0x8000) == 0 && M.x86.R_DX == 0x00) ||
+	    ((M.x86.R_AX & 0x8000) != 0 && M.x86.R_DX == 0xFF)) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	} else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void imul_long_direct(u32 * res_lo, u32 * res_hi, u32 d, u32 s)
+{
+#ifdef	__HAS_LONG_LONG__
+	s64 res = (s32) d * (s32) s;
+
+	*res_lo = (u32) res;
+	*res_hi = (u32) (res >> 32);
+#else
+	u32 d_lo, d_hi, d_sign;
+	u32 s_lo, s_hi, s_sign;
+	u32 rlo_lo, rlo_hi, rhi_lo;
+
+	if ((d_sign = d & 0x80000000) != 0)
+		d = -d;
+	d_lo = d & 0xFFFF;
+	d_hi = d >> 16;
+	if ((s_sign = s & 0x80000000) != 0)
+		s = -s;
+	s_lo = s & 0xFFFF;
+	s_hi = s >> 16;
+	rlo_lo = d_lo * s_lo;
+	rlo_hi = (d_hi * s_lo + d_lo * s_hi) + (rlo_lo >> 16);
+	rhi_lo = d_hi * s_hi + (rlo_hi >> 16);
+	*res_lo = (rlo_hi << 16) | (rlo_lo & 0xFFFF);
+	*res_hi = rhi_lo;
+	if (d_sign != s_sign) {
+		d = ~*res_lo;
+		s = (((d & 0xFFFF) + 1) >> 16) + (d >> 16);
+		*res_lo = ~*res_lo + 1;
+		*res_hi = ~*res_hi + (s >> 16);
+	}
+#endif
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void imul_long(u32 s)
+{
+	imul_long_direct(&M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s);
+	if (((M.x86.R_EAX & 0x80000000) == 0 && M.x86.R_EDX == 0x00) ||
+	    ((M.x86.R_EAX & 0x80000000) != 0 && M.x86.R_EDX == 0xFF)) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	} else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the MUL instruction and side effects.
+****************************************************************************/
+void mul_byte(u8 s)
+{
+	u16 res = (u16) (M.x86.R_AL * s);
+
+	M.x86.R_AX = res;
+	if (M.x86.R_AH == 0) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	} else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the MUL instruction and side effects.
+****************************************************************************/
+void mul_word(u16 s)
+{
+	u32 res = M.x86.R_AX * s;
+
+	M.x86.R_AX = (u16) res;
+	M.x86.R_DX = (u16) (res >> 16);
+	if (M.x86.R_DX == 0) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	} else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the MUL instruction and side effects.
+****************************************************************************/
+void mul_long(u32 s)
+{
+#ifdef	__HAS_LONG_LONG__
+	u64 res = (u32) M.x86.R_EAX * (u32) s;
+
+	M.x86.R_EAX = (u32) res;
+	M.x86.R_EDX = (u32) (res >> 32);
+#else
+	u32 a, a_lo, a_hi;
+	u32 s_lo, s_hi;
+	u32 rlo_lo, rlo_hi, rhi_lo;
+
+	a = M.x86.R_EAX;
+	a_lo = a & 0xFFFF;
+	a_hi = a >> 16;
+	s_lo = s & 0xFFFF;
+	s_hi = s >> 16;
+	rlo_lo = a_lo * s_lo;
+	rlo_hi = (a_hi * s_lo + a_lo * s_hi) + (rlo_lo >> 16);
+	rhi_lo = a_hi * s_hi + (rlo_hi >> 16);
+	M.x86.R_EAX = (rlo_hi << 16) | (rlo_lo & 0xFFFF);
+	M.x86.R_EDX = rhi_lo;
+#endif
+
+	if (M.x86.R_EDX == 0) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	} else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IDIV instruction and side effects.
+****************************************************************************/
+void idiv_byte(u8 s)
+{
+	s32 dvd, div, mod;
+
+	dvd = (s16) M.x86.R_AX;
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	div = dvd / (s8) s;
+	mod = dvd % (s8) s;
+	if (abs(div) > 0x7f) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	M.x86.R_AL = (s8) div;
+	M.x86.R_AH = (s8) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IDIV instruction and side effects.
+****************************************************************************/
+void idiv_word(u16 s)
+{
+	s32 dvd, div, mod;
+
+	dvd = (((s32) M.x86.R_DX) << 16) | M.x86.R_AX;
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	div = dvd / (s16) s;
+	mod = dvd % (s16) s;
+	if (abs(div) > 0x7fff) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_SF);
+	CONDITIONAL_SET_FLAG(div == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+	M.x86.R_AX = (u16) div;
+	M.x86.R_DX = (u16) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IDIV instruction and side effects.
+****************************************************************************/
+void idiv_long(u32 s)
+{
+#ifdef	__HAS_LONG_LONG__
+	s64 dvd, div, mod;
+
+	dvd = (((s64) M.x86.R_EDX) << 32) | M.x86.R_EAX;
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	div = dvd / (s32) s;
+	mod = dvd % (s32) s;
+	if (abs(div) > 0x7fffffff) {
+		x86emu_intr_raise(0);
+		return;
+	}
+#else
+	s32 div = 0, mod;
+	s32 h_dvd = M.x86.R_EDX;
+	u32 l_dvd = M.x86.R_EAX;
+	u32 abs_s = s & 0x7FFFFFFF;
+	u32 abs_h_dvd = h_dvd & 0x7FFFFFFF;
+	u32 h_s = abs_s >> 1;
+	u32 l_s = abs_s << 31;
+	int counter = 31;
+	int carry;
+
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	do {
+		div <<= 1;
+		carry = (l_dvd >= l_s) ? 0 : 1;
+
+		if (abs_h_dvd < (h_s + carry)) {
+			h_s >>= 1;
+			l_s = abs_s << (--counter);
+			continue;
+		} else {
+			abs_h_dvd -= (h_s + carry);
+			l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1)
+			    : (l_dvd - l_s);
+			h_s >>= 1;
+			l_s = abs_s << (--counter);
+			div |= 1;
+			continue;
+		}
+
+	} while (counter > -1);
+	/* overflow */
+	if (abs_h_dvd || (l_dvd > abs_s)) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	/* sign */
+	div |= ((h_dvd & 0x10000000) ^ (s & 0x10000000));
+	mod = l_dvd;
+
+#endif
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CLEAR_FLAG(F_SF);
+	SET_FLAG(F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+	M.x86.R_EAX = (u32) div;
+	M.x86.R_EDX = (u32) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DIV instruction and side effects.
+****************************************************************************/
+void div_byte(u8 s)
+{
+	u32 dvd, div, mod;
+
+	dvd = M.x86.R_AX;
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	div = dvd / (u8) s;
+	mod = dvd % (u8) s;
+	if (abs(div) > 0xff) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	M.x86.R_AL = (u8) div;
+	M.x86.R_AH = (u8) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DIV instruction and side effects.
+****************************************************************************/
+void div_word(u16 s)
+{
+	u32 dvd, div, mod;
+
+	dvd = (((u32) M.x86.R_DX) << 16) | M.x86.R_AX;
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	div = dvd / (u16) s;
+	mod = dvd % (u16) s;
+	if (abs(div) > 0xffff) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_SF);
+	CONDITIONAL_SET_FLAG(div == 0, F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+	M.x86.R_AX = (u16) div;
+	M.x86.R_DX = (u16) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DIV instruction and side effects.
+****************************************************************************/
+void div_long(u32 s)
+{
+#ifdef	__HAS_LONG_LONG__
+	u64 dvd, div, mod;
+
+	dvd = (((u64) M.x86.R_EDX) << 32) | M.x86.R_EAX;
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	div = dvd / (u32) s;
+	mod = dvd % (u32) s;
+	if (abs(div) > 0xffffffff) {
+		x86emu_intr_raise(0);
+		return;
+	}
+#else
+	s32 div = 0, mod;
+	s32 h_dvd = M.x86.R_EDX;
+	u32 l_dvd = M.x86.R_EAX;
+
+	u32 h_s = s;
+	u32 l_s = 0;
+	int counter = 32;
+	int carry;
+
+	if (s == 0) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	do {
+		div <<= 1;
+		carry = (l_dvd >= l_s) ? 0 : 1;
+
+		if (h_dvd < (h_s + carry)) {
+			h_s >>= 1;
+			l_s = s << (--counter);
+			continue;
+		} else {
+			h_dvd -= (h_s + carry);
+			l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1)
+			    : (l_dvd - l_s);
+			h_s >>= 1;
+			l_s = s << (--counter);
+			div |= 1;
+			continue;
+		}
+
+	} while (counter > -1);
+	/* overflow */
+	if (h_dvd || (l_dvd > s)) {
+		x86emu_intr_raise(0);
+		return;
+	}
+	mod = l_dvd;
+#endif
+	CLEAR_FLAG(F_CF);
+	CLEAR_FLAG(F_AF);
+	CLEAR_FLAG(F_SF);
+	SET_FLAG(F_ZF);
+	CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+	M.x86.R_EAX = (u32) div;
+	M.x86.R_EDX = (u32) mod;
+}
+
+#endif				/* __HAVE_INLINE_ASSEMBLER__ */
+
+/****************************************************************************
+REMARKS:
+Implements the IN string instruction and side effects.
+****************************************************************************/
+void ins(int size)
+{
+	int inc = size;
+
+	if (ACCESS_FLAG(F_DF)) {
+		inc = -size;
+	}
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* in until CX is ZERO. */
+		u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ?
+			     M.x86.R_ECX : M.x86.R_CX);
+		switch (size) {
+		case 1:
+			while (count--) {
+				store_data_byte_abs(M.x86.R_ES, M.x86.R_DI,
+						    (*sys_inb) (M.x86.R_DX));
+				M.x86.R_DI += inc;
+			}
+			break;
+
+		case 2:
+			while (count--) {
+				store_data_word_abs(M.x86.R_ES, M.x86.R_DI,
+						    (*sys_inw) (M.x86.R_DX));
+				M.x86.R_DI += inc;
+			}
+			break;
+		case 4:
+			while (count--) {
+				store_data_long_abs(M.x86.R_ES, M.x86.R_DI,
+						    (*sys_inl) (M.x86.R_DX));
+				M.x86.R_DI += inc;
+				break;
+			}
+		}
+		M.x86.R_CX = 0;
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			M.x86.R_ECX = 0;
+		}
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	} else {
+		switch (size) {
+		case 1:
+			store_data_byte_abs(M.x86.R_ES, M.x86.R_DI,
+					    (*sys_inb) (M.x86.R_DX));
+			break;
+		case 2:
+			store_data_word_abs(M.x86.R_ES, M.x86.R_DI,
+					    (*sys_inw) (M.x86.R_DX));
+			break;
+		case 4:
+			store_data_long_abs(M.x86.R_ES, M.x86.R_DI,
+					    (*sys_inl) (M.x86.R_DX));
+			break;
+		}
+		M.x86.R_DI += inc;
+	}
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OUT string instruction and side effects.
+****************************************************************************/
+void outs(int size)
+{
+	int inc = size;
+
+	if (ACCESS_FLAG(F_DF)) {
+		inc = -size;
+	}
+	if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+		/* dont care whether REPE or REPNE */
+		/* out until CX is ZERO. */
+		u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ?
+			     M.x86.R_ECX : M.x86.R_CX);
+		switch (size) {
+		case 1:
+			while (count--) {
+				(*sys_outb) (M.x86.R_DX,
+					     fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI));
+				M.x86.R_SI += inc;
+			}
+			break;
+
+		case 2:
+			while (count--) {
+				(*sys_outw) (M.x86.R_DX,
+					     fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI));
+				M.x86.R_SI += inc;
+			}
+			break;
+		case 4:
+			while (count--) {
+				(*sys_outl) (M.x86.R_DX,
+					     fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI));
+				M.x86.R_SI += inc;
+				break;
+			}
+		}
+		M.x86.R_CX = 0;
+		if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			M.x86.R_ECX = 0;
+		}
+		M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+	} else {
+		switch (size) {
+		case 1:
+			(*sys_outb) (M.x86.R_DX,
+				     fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI));
+			break;
+		case 2:
+			(*sys_outw) (M.x86.R_DX,
+				     fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI));
+			break;
+		case 4:
+			(*sys_outl) (M.x86.R_DX,
+				     fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI));
+			break;
+		}
+		M.x86.R_SI += inc;
+	}
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Address to fetch word from
+
+REMARKS:
+Fetches a word from emulator memory using an absolute address.
+****************************************************************************/
+u16 mem_access_word(int addr)
+{
+	DB(if (CHECK_MEM_ACCESS())
+	   x86emu_check_mem_access(addr);)
+		return (*sys_rdw) (addr);
+}
+
+/****************************************************************************
+REMARKS:
+Pushes a word onto the stack.
+
+NOTE: Do not inline this, as (*sys_wrX) is already inline!
+****************************************************************************/
+void push_word(u16 w)
+{
+	DB(if (CHECK_SP_ACCESS())
+	   x86emu_check_sp_access();)
+		M.x86.R_SP -= 2;
+	(*sys_wrw) (((u32) M.x86.R_SS << 4) + M.x86.R_SP, w);
+}
+
+/****************************************************************************
+REMARKS:
+Pushes a long onto the stack.
+
+NOTE: Do not inline this, as (*sys_wrX) is already inline!
+****************************************************************************/
+void push_long(u32 w)
+{
+	DB(if (CHECK_SP_ACCESS())
+	   x86emu_check_sp_access();)
+		M.x86.R_SP -= 4;
+	(*sys_wrl) (((u32) M.x86.R_SS << 4) + M.x86.R_SP, w);
+}
+
+/****************************************************************************
+REMARKS:
+Pops a word from the stack.
+
+NOTE: Do not inline this, as (*sys_rdX) is already inline!
+****************************************************************************/
+u16 pop_word(void)
+{
+	register u16 res;
+
+	DB(if (CHECK_SP_ACCESS())
+	   x86emu_check_sp_access();)
+		res = (*sys_rdw) (((u32) M.x86.R_SS << 4) + M.x86.R_SP);
+	M.x86.R_SP += 2;
+	return res;
+}
+
+/****************************************************************************
+REMARKS:
+Pops a long from the stack.
+
+NOTE: Do not inline this, as (*sys_rdX) is already inline!
+****************************************************************************/
+u32 pop_long(void)
+{
+	register u32 res;
+
+	DB(if (CHECK_SP_ACCESS())
+	   x86emu_check_sp_access();)
+		res = (*sys_rdl) (((u32) M.x86.R_SS << 4) + M.x86.R_SP);
+	M.x86.R_SP += 4;
+	return res;
+}
+
+#ifdef	__HAVE_INLINE_ASSEMBLER__
+
+u16 aaa_word(u16 d)
+{
+	return aaa_word_asm(&M.x86.R_EFLG, d);
+}
+
+u16 aas_word(u16 d)
+{
+	return aas_word_asm(&M.x86.R_EFLG, d);
+}
+
+u16 aad_word(u16 d)
+{
+	return aad_word_asm(&M.x86.R_EFLG, d);
+}
+
+u16 aam_word(u8 d)
+{
+	return aam_word_asm(&M.x86.R_EFLG, d);
+}
+
+u8 adc_byte(u8 d, u8 s)
+{
+	return adc_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 adc_word(u16 d, u16 s)
+{
+	return adc_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 adc_long(u32 d, u32 s)
+{
+	return adc_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 add_byte(u8 d, u8 s)
+{
+	return add_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 add_word(u16 d, u16 s)
+{
+	return add_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 add_long(u32 d, u32 s)
+{
+	return add_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 and_byte(u8 d, u8 s)
+{
+	return and_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 and_word(u16 d, u16 s)
+{
+	return and_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 and_long(u32 d, u32 s)
+{
+	return and_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 cmp_byte(u8 d, u8 s)
+{
+	return cmp_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 cmp_word(u16 d, u16 s)
+{
+	return cmp_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 cmp_long(u32 d, u32 s)
+{
+	return cmp_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 daa_byte(u8 d)
+{
+	return daa_byte_asm(&M.x86.R_EFLG, d);
+}
+
+u8 das_byte(u8 d)
+{
+	return das_byte_asm(&M.x86.R_EFLG, d);
+}
+
+u8 dec_byte(u8 d)
+{
+	return dec_byte_asm(&M.x86.R_EFLG, d);
+}
+
+u16 dec_word(u16 d)
+{
+	return dec_word_asm(&M.x86.R_EFLG, d);
+}
+
+u32 dec_long(u32 d)
+{
+	return dec_long_asm(&M.x86.R_EFLG, d);
+}
+
+u8 inc_byte(u8 d)
+{
+	return inc_byte_asm(&M.x86.R_EFLG, d);
+}
+
+u16 inc_word(u16 d)
+{
+	return inc_word_asm(&M.x86.R_EFLG, d);
+}
+
+u32 inc_long(u32 d)
+{
+	return inc_long_asm(&M.x86.R_EFLG, d);
+}
+
+u8 or_byte(u8 d, u8 s)
+{
+	return or_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 or_word(u16 d, u16 s)
+{
+	return or_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 or_long(u32 d, u32 s)
+{
+	return or_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 neg_byte(u8 s)
+{
+	return neg_byte_asm(&M.x86.R_EFLG, s);
+}
+
+u16 neg_word(u16 s)
+{
+	return neg_word_asm(&M.x86.R_EFLG, s);
+}
+
+u32 neg_long(u32 s)
+{
+	return neg_long_asm(&M.x86.R_EFLG, s);
+}
+
+u8 not_byte(u8 s)
+{
+	return not_byte_asm(&M.x86.R_EFLG, s);
+}
+
+u16 not_word(u16 s)
+{
+	return not_word_asm(&M.x86.R_EFLG, s);
+}
+
+u32 not_long(u32 s)
+{
+	return not_long_asm(&M.x86.R_EFLG, s);
+}
+
+u8 rcl_byte(u8 d, u8 s)
+{
+	return rcl_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 rcl_word(u16 d, u8 s)
+{
+	return rcl_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 rcl_long(u32 d, u8 s)
+{
+	return rcl_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 rcr_byte(u8 d, u8 s)
+{
+	return rcr_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 rcr_word(u16 d, u8 s)
+{
+	return rcr_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 rcr_long(u32 d, u8 s)
+{
+	return rcr_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 rol_byte(u8 d, u8 s)
+{
+	return rol_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 rol_word(u16 d, u8 s)
+{
+	return rol_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 rol_long(u32 d, u8 s)
+{
+	return rol_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 ror_byte(u8 d, u8 s)
+{
+	return ror_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 ror_word(u16 d, u8 s)
+{
+	return ror_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 ror_long(u32 d, u8 s)
+{
+	return ror_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 shl_byte(u8 d, u8 s)
+{
+	return shl_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 shl_word(u16 d, u8 s)
+{
+	return shl_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 shl_long(u32 d, u8 s)
+{
+	return shl_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 shr_byte(u8 d, u8 s)
+{
+	return shr_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 shr_word(u16 d, u8 s)
+{
+	return shr_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 shr_long(u32 d, u8 s)
+{
+	return shr_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 sar_byte(u8 d, u8 s)
+{
+	return sar_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 sar_word(u16 d, u8 s)
+{
+	return sar_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 sar_long(u32 d, u8 s)
+{
+	return sar_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 shld_word(u16 d, u16 fill, u8 s)
+{
+	return shld_word_asm(&M.x86.R_EFLG, d, fill, s);
+}
+
+u32 shld_long(u32 d, u32 fill, u8 s)
+{
+	return shld_long_asm(&M.x86.R_EFLG, d, fill, s);
+}
+
+u16 shrd_word(u16 d, u16 fill, u8 s)
+{
+	return shrd_word_asm(&M.x86.R_EFLG, d, fill, s);
+}
+
+u32 shrd_long(u32 d, u32 fill, u8 s)
+{
+	return shrd_long_asm(&M.x86.R_EFLG, d, fill, s);
+}
+
+u8 sbb_byte(u8 d, u8 s)
+{
+	return sbb_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 sbb_word(u16 d, u16 s)
+{
+	return sbb_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 sbb_long(u32 d, u32 s)
+{
+	return sbb_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 sub_byte(u8 d, u8 s)
+{
+	return sub_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 sub_word(u16 d, u16 s)
+{
+	return sub_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 sub_long(u32 d, u32 s)
+{
+	return sub_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+void test_byte(u8 d, u8 s)
+{
+	test_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+void test_word(u16 d, u16 s)
+{
+	test_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+void test_long(u32 d, u32 s)
+{
+	test_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+u8 xor_byte(u8 d, u8 s)
+{
+	return xor_byte_asm(&M.x86.R_EFLG, d, s);
+}
+
+u16 xor_word(u16 d, u16 s)
+{
+	return xor_word_asm(&M.x86.R_EFLG, d, s);
+}
+
+u32 xor_long(u32 d, u32 s)
+{
+	return xor_long_asm(&M.x86.R_EFLG, d, s);
+}
+
+void imul_byte(u8 s)
+{
+	imul_byte_asm(&M.x86.R_EFLG, &M.x86.R_AX, M.x86.R_AL, s);
+}
+
+void imul_word(u16 s)
+{
+	imul_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, s);
+}
+
+void imul_long(u32 s)
+{
+	imul_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s);
+}
+
+void imul_long_direct(u32 * res_lo, u32 * res_hi, u32 d, u32 s)
+{
+	imul_long_asm(&M.x86.R_EFLG, res_lo, res_hi, d, s);
+}
+
+void mul_byte(u8 s)
+{
+	mul_byte_asm(&M.x86.R_EFLG, &M.x86.R_AX, M.x86.R_AL, s);
+}
+
+void mul_word(u16 s)
+{
+	mul_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, s);
+}
+
+void mul_long(u32 s)
+{
+	mul_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s);
+}
+
+void idiv_byte(u8 s)
+{
+	idiv_byte_asm(&M.x86.R_EFLG, &M.x86.R_AL, &M.x86.R_AH, M.x86.R_AX, s);
+}
+
+void idiv_word(u16 s)
+{
+	idiv_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, M.x86.R_DX, s);
+}
+
+void idiv_long(u32 s)
+{
+	idiv_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, M.x86.R_EDX,
+		      s);
+}
+
+void div_byte(u8 s)
+{
+	div_byte_asm(&M.x86.R_EFLG, &M.x86.R_AL, &M.x86.R_AH, M.x86.R_AX, s);
+}
+
+void div_word(u16 s)
+{
+	div_word_asm(&M.x86.R_EFLG, &M.x86.R_AX, &M.x86.R_DX, M.x86.R_AX, M.x86.R_DX, s);
+}
+
+void div_long(u32 s)
+{
+	div_long_asm(&M.x86.R_EFLG, &M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, M.x86.R_EDX,
+		     s);
+}
+
+#endif
diff --git a/util/vgabios/x86emu/src/x86emu/sys.c b/util/vgabios/x86emu/src/x86emu/sys.c
new file mode 100644
index 0000000000..43d830382d
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/sys.c
@@ -0,0 +1,606 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  This file includes subroutines which are related to
+*				programmed I/O and memory access. Included in this module
+*				are default functions with limited usefulness. For real
+*				uses these functions will most likely be overriden by the
+*				user library.
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/src/x86emu/sys.c,v 1.5 2000/08/23 22:10:01 tsi Exp $ */
+
+#include "x86emu.h"
+#include "x86emu/regs.h"
+#include "x86emu/debug.h"
+#include "x86emu/prim_ops.h"
+#include <sys/io.h>
+#ifdef IN_MODULE
+#include "xf86_ansic.h"
+#else
+#include <string.h>
+#endif
+/*------------------------- Global Variables ------------------------------*/
+
+X86EMU_sysEnv _X86EMU_env;	/* Global emulator machine state */
+X86EMU_intrFuncs _X86EMU_intrTab[256];
+
+/*----------------------------- Implementation ----------------------------*/
+#if defined(__alpha__) || defined(__alpha)
+/* to cope with broken egcs-1.1.2 :-(((( */
+
+/*
+ * inline functions to do unaligned accesses
+ * from linux/include/asm-alpha/unaligned.h
+ */
+
+/*
+ * EGCS 1.1 knows about arbitrary unaligned loads.  Define some
+ * packed structures to talk about such things with.
+ */
+
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+struct __una_u64 {
+	unsigned long x __attribute__ ((packed));
+};
+struct __una_u32 {
+	unsigned int x __attribute__ ((packed));
+};
+struct __una_u16 {
+	unsigned short x __attribute__ ((packed));
+};
+#endif
+
+static __inline__ unsigned long ldq_u(unsigned long *r11)
+{
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+	const struct __una_u64 *ptr = (const struct __una_u64 *) r11;
+	return ptr->x;
+#else
+	unsigned long r1, r2;
+      __asm__("ldq_u %0,%3\n\t" "ldq_u %1,%4\n\t" "extql %0,%2,%0\n\t" "extqh %1,%2,%1":"=&r"(r1),
+		"=&r"
+		(r2)
+      :	"r"(r11), "m"(*r11),
+		"m"(*(const unsigned long *) (7 + (char *) r11)));
+	return r1 | r2;
+#endif
+}
+
+static __inline__ unsigned long ldl_u(unsigned int *r11)
+{
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+	const struct __una_u32 *ptr = (const struct __una_u32 *) r11;
+	return ptr->x;
+#else
+	unsigned long r1, r2;
+      __asm__("ldq_u %0,%3\n\t" "ldq_u %1,%4\n\t" "extll %0,%2,%0\n\t" "extlh %1,%2,%1":"=&r"(r1),
+		"=&r"
+		(r2)
+      :	"r"(r11), "m"(*r11),
+		"m"(*(const unsigned long *) (3 + (char *) r11)));
+	return r1 | r2;
+#endif
+}
+
+static __inline__ unsigned long ldw_u(unsigned short *r11)
+{
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+	const struct __una_u16 *ptr = (const struct __una_u16 *) r11;
+	return ptr->x;
+#else
+	unsigned long r1, r2;
+      __asm__("ldq_u %0,%3\n\t" "ldq_u %1,%4\n\t" "extwl %0,%2,%0\n\t" "extwh %1,%2,%1":"=&r"(r1),
+		"=&r"
+		(r2)
+      :	"r"(r11), "m"(*r11),
+		"m"(*(const unsigned long *) (1 + (char *) r11)));
+	return r1 | r2;
+#endif
+}
+
+/*
+ * Elemental unaligned stores 
+ */
+
+static __inline__ void stq_u(unsigned long r5, unsigned long *r11)
+{
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+	struct __una_u64 *ptr = (struct __una_u64 *) r11;
+	ptr->x = r5;
+#else
+	unsigned long r1, r2, r3, r4;
+
+      __asm__("ldq_u %3,%1\n\t" "ldq_u %2,%0\n\t" "insqh %6,%7,%5\n\t" "insql %6,%7,%4\n\t" "mskqh %3,%7,%3\n\t" "mskql %2,%7,%2\n\t" "bis %3,%5,%3\n\t" "bis %2,%4,%2\n\t" "stq_u %3,%1\n\t" "stq_u %2,%0":"=m"(*r11),
+		"=m"(*(unsigned long *) (7 + (char *) r11)),
+		"=&r"(r1), "=&r"(r2), "=&r"(r3), "=&r"(r4)
+      :	"r"(r5), "r"(r11));
+#endif
+}
+
+static __inline__ void stl_u(unsigned long r5, unsigned int *r11)
+{
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+	struct __una_u32 *ptr = (struct __una_u32 *) r11;
+	ptr->x = r5;
+#else
+	unsigned long r1, r2, r3, r4;
+
+      __asm__("ldq_u %3,%1\n\t" "ldq_u %2,%0\n\t" "inslh %6,%7,%5\n\t" "insll %6,%7,%4\n\t" "msklh %3,%7,%3\n\t" "mskll %2,%7,%2\n\t" "bis %3,%5,%3\n\t" "bis %2,%4,%2\n\t" "stq_u %3,%1\n\t" "stq_u %2,%0":"=m"(*r11),
+		"=m"(*(unsigned long *) (3 + (char *) r11)),
+		"=&r"(r1), "=&r"(r2), "=&r"(r3), "=&r"(r4)
+      :	"r"(r5), "r"(r11));
+#endif
+}
+
+static __inline__ void stw_u(unsigned long r5, unsigned short *r11)
+{
+#if __GNUC__ > 2 || __GNUC_MINOR__ >= 91
+	struct __una_u16 *ptr = (struct __una_u16 *) r11;
+	ptr->x = r5;
+#else
+	unsigned long r1, r2, r3, r4;
+
+      __asm__("ldq_u %3,%1\n\t" "ldq_u %2,%0\n\t" "inswh %6,%7,%5\n\t" "inswl %6,%7,%4\n\t" "mskwh %3,%7,%3\n\t" "mskwl %2,%7,%2\n\t" "bis %3,%5,%3\n\t" "bis %2,%4,%2\n\t" "stq_u %3,%1\n\t" "stq_u %2,%0":"=m"(*r11),
+		"=m"(*(unsigned long *) (1 + (char *) r11)),
+		"=&r"(r1), "=&r"(r2), "=&r"(r3), "=&r"(r4)
+      :	"r"(r5), "r"(r11));
+#endif
+}
+#endif
+
+/* compute a pointer. This replaces code scattered all over the place! */
+u8 *mem_ptr(u32 addr, int size)
+{
+	u8 *retaddr = 0;
+
+	if (addr > M.mem_size - size) {
+		DB(printk("mem_ptr: address %#lx out of range!\n", addr);
+		    )
+		    HALT_SYS();
+	}
+	/* a or b segment? */
+	/* & with e to clear low-order bit, if it is a or b it will be a */
+	if (((addr & 0xfffe0000) == 0xa0000) && M.abseg) {
+		//printk("It's a0000\n");
+		addr &= ~0xfffe0000;
+		retaddr = (u8 *) (M.abseg + addr);
+		//printk("retaddr now 0x%p\n", retaddr);
+	} else if (addr < 0x200) {
+		//printk("updating int vector 0x%x\n", addr >> 2);
+		retaddr = (u8 *) (M.mem_base + addr);
+	} else {
+		retaddr = (u8 *) (M.mem_base + addr);
+	}
+	return retaddr;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Emulator memory address to read
+
+RETURNS:
+Byte value read from emulator memory.
+
+REMARKS:
+Reads a byte value from the emulator memory. 
+****************************************************************************/
+u8 X86API rdb(u32 addr)
+{
+	u8 val;
+	u8 *ptr;
+
+	ptr = mem_ptr(addr, 1);
+
+	val = *ptr;
+	DB(if (DEBUG_MEM_TRACE())
+	   printk("%#08x 1 -> %#x\n", addr, val);)
+		return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Emulator memory address to read
+
+RETURNS:
+Word value read from emulator memory.
+
+REMARKS:
+Reads a word value from the emulator memory.
+****************************************************************************/
+u16 X86API rdw(u32 addr)
+{
+	u16 val = 0;
+	u8 *ptr;
+
+	ptr = mem_ptr(addr, 2);
+
+	if (addr > M.mem_size - 2) {
+		DB(printk("mem_read: address %#lx out of range!\n", (unsigned long) addr);
+		    )
+		    HALT_SYS();
+	}
+#ifdef __BIG_ENDIAN__
+	if (addr & 0x1) {
+		val = (*ptr | (*(ptr + 1) << 8));
+	} else
+#endif
+#if defined(__alpha__) || defined(__alpha)
+		val = ldw_u((u16 *) (ptr));
+#else
+		val = *(u16 *) (ptr);
+#endif
+	DB(if (DEBUG_MEM_TRACE())
+	   printk("%#08x 2 -> %#x\n", addr, val);)
+		return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Emulator memory address to read
+
+RETURNS:
+Long value read from emulator memory.
+REMARKS:
+Reads a long value from the emulator memory. 
+****************************************************************************/
+u32 X86API rdl(u32 addr)
+{
+	u32 val = 0;
+	u8 *ptr;
+
+	ptr = mem_ptr(addr, 4);
+
+#ifdef __BIG_ENDIAN__
+	if (addr & 0x3) {
+		val = (*(u8 *) (ptr + 0) |
+		       (*(u8 *) (ptr + 1) << 8) |
+		       (*(u8 *) (ptr + 2) << 16) | (*(u8 *) (ptr + 3) << 24));
+	} else
+#endif
+#if defined(__alpha__) || defined(__alpha)
+		val = ldl_u((u32 *) (ptr));
+#else
+		val = *(u32 *) (ptr);
+#endif
+	DB(if (DEBUG_MEM_TRACE())
+	   printk("%#08x 4 -> %#x\n", addr, val);)
+		return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Emulator memory address to read
+val		- Value to store
+
+REMARKS:
+Writes a byte value to emulator memory.
+****************************************************************************/
+void X86API wrb(u32 addr, u8 val)
+{
+	u8 *ptr;
+
+	ptr = mem_ptr(addr, 1);
+	DB(if (DEBUG_MEM_TRACE())
+	   printk("%#08x 1 <- %#x\n", addr, val);)
+		*(u8 *) (ptr) = val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Emulator memory address to read
+val		- Value to store
+
+REMARKS:
+Writes a word value to emulator memory.
+****************************************************************************/
+void X86API wrw(u32 addr, u16 val)
+{
+	u8 *ptr;
+
+	ptr = mem_ptr(addr, 2);
+	DB(if (DEBUG_MEM_TRACE())
+	   printk("%#08x 2 <- %#x\n", addr, val);)
+#ifdef __BIG_ENDIAN__
+		if (addr & 0x1) {
+			*(u8 *) (ptr + 0) = (val >> 0) & 0xff;
+			*(u8 *) (ptr + 1) = (val >> 8) & 0xff;
+		} else
+#endif
+#if defined(__alpha__) || defined(__alpha)
+			stw_u(val, (u16 *) (ptr));
+#else
+			*(u16 *) (ptr) = val;
+#endif
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- Emulator memory address to read
+val		- Value to store
+
+REMARKS:
+Writes a long value to emulator memory. 
+****************************************************************************/
+void X86API wrl(u32 addr, u32 val)
+{
+	u8 *ptr;
+
+	ptr = mem_ptr(addr, 4);
+	DB(if (DEBUG_MEM_TRACE())
+	   printk("%#08x 4 <- %#x\n", addr, val);)
+#ifdef __BIG_ENDIAN__
+		if (addr & 0x1) {
+			*(u8 *) (ptr + 0) = (val >> 0) & 0xff;
+			*(u8 *) (ptr + 1) = (val >> 8) & 0xff;
+			*(u8 *) (ptr + 2) = (val >> 16) & 0xff;
+			*(u8 *) (ptr + 3) = (val >> 24) & 0xff;
+		} else
+#endif
+#if defined(__alpha__) || defined(__alpha)
+			stl_u(val, (u32 *) (ptr));
+#else
+			*(u32 *) (ptr) = val;
+#endif
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- PIO address to read
+RETURN:
+0
+REMARKS:
+Default PIO byte read function. Doesn't perform real inb.
+****************************************************************************/
+static u8 X86API p_inb(X86EMU_pioAddr addr)
+{
+	DB(if (DEBUG_IO_TRACE())
+	   printk("inb %#04x \n", addr);)
+/*	return 0;*/
+
+		if (ioperm(0x3c0, 0xdf, 1) == -1) {
+			printk("Permission not set on port 0x%x.\n", addr);
+		}
+	return inb(addr);
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- PIO address to read
+RETURN:
+0
+REMARKS:
+Default PIO word read function. Doesn't perform real inw.
+****************************************************************************/
+static u16 X86API p_inw(X86EMU_pioAddr addr)
+{
+	DB(if (DEBUG_IO_TRACE())
+	   printk("inw %#04x \n", addr);)
+/*	return 0;*/
+		if (ioperm(0x3c0, 0xdf, 1) == -1) {
+			printk("Permission not set on port 0x%x.\n", addr);
+		}
+	return inw(addr);
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- PIO address to read
+RETURN:
+0
+REMARKS:
+Default PIO long read function. Doesn't perform real inl.
+****************************************************************************/
+static u32 X86API p_inl(X86EMU_pioAddr addr)
+{
+	DB(if (DEBUG_IO_TRACE())
+	   printk("inl %#04x \n", addr);)
+/*	return 0;*/
+		if (ioperm(0x3c0, 0xdf, 1) == -1) {
+			printk("Permission not set on port 0x%x.\n", addr);
+		}
+	return inl(addr);
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- PIO address to write
+val     - Value to store
+REMARKS:
+Default PIO byte write function. Doesn't perform real outb.
+****************************************************************************/
+static void X86API p_outb(X86EMU_pioAddr addr, u8 val)
+{
+	DB(if (DEBUG_IO_TRACE())
+	   printk("outb %#02x -> %#04x \n", val, addr);)
+
+		if (ioperm(0x3c0, 0xdf, 1) == -1) {
+			printk("Permission not set on port 0x%x.\n", addr);
+		}
+	outb(val, addr);
+	return;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- PIO address to write
+val     - Value to store
+REMARKS:
+Default PIO word write function. Doesn't perform real outw.
+****************************************************************************/
+static void X86API p_outw(X86EMU_pioAddr addr, u16 val)
+{
+	DB(if (DEBUG_IO_TRACE())
+	   printk("outw %#04x -> %#04x \n", val, addr);)
+
+		if (ioperm(0x3c0, 0xdf, 1) == -1) {
+			printk("Permission not set on port 0x%x.\n", addr);
+		}
+	outw(val, addr);
+	return;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr	- PIO address to write
+val     - Value to store
+REMARKS:
+Default PIO ;ong write function. Doesn't perform real outl.
+****************************************************************************/
+static void X86API p_outl(X86EMU_pioAddr addr, u32 val)
+{
+	DB(if (DEBUG_IO_TRACE())
+	   printk("outl %#08x -> %#04x \n", val, addr);)
+
+		if (ioperm(0x3c0, 0xdf, 1) == -1) {
+			printk("Permission not set on port 0x%x.\n", addr);
+		}
+	outl(val, addr);
+	return;
+}
+
+/*------------------------- Global Variables ------------------------------*/
+
+u8(X86APIP sys_rdb) (u32 addr) = rdb;
+u16(X86APIP sys_rdw) (u32 addr) = rdw;
+u32(X86APIP sys_rdl) (u32 addr) = rdl;
+void (X86APIP sys_wrb) (u32 addr, u8 val) = wrb;
+void (X86APIP sys_wrw) (u32 addr, u16 val) = wrw;
+void (X86APIP sys_wrl) (u32 addr, u32 val) = wrl;
+u8(X86APIP sys_inb) (X86EMU_pioAddr addr) = p_inb;
+u16(X86APIP sys_inw) (X86EMU_pioAddr addr) = p_inw;
+u32(X86APIP sys_inl) (X86EMU_pioAddr addr) = p_inl;
+void (X86APIP sys_outb) (X86EMU_pioAddr addr, u8 val) = p_outb;
+void (X86APIP sys_outw) (X86EMU_pioAddr addr, u16 val) = p_outw;
+void (X86APIP sys_outl) (X86EMU_pioAddr addr, u32 val) = p_outl;
+
+/*----------------------------- Setup -------------------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+funcs	- New memory function pointers to make active
+
+REMARKS:
+This function is used to set the pointers to functions which access
+memory space, allowing the user application to override these functions
+and hook them out as necessary for their application.
+****************************************************************************/
+void X86EMU_setupMemFuncs(X86EMU_memFuncs * funcs)
+{
+	sys_rdb = funcs->rdb;
+	sys_rdw = funcs->rdw;
+	sys_rdl = funcs->rdl;
+	sys_wrb = funcs->wrb;
+	sys_wrw = funcs->wrw;
+	sys_wrl = funcs->wrl;
+}
+
+/****************************************************************************
+PARAMETERS:
+funcs	- New programmed I/O function pointers to make active
+
+REMARKS:
+This function is used to set the pointers to functions which access
+I/O space, allowing the user application to override these functions
+and hook them out as necessary for their application.
+****************************************************************************/
+void X86EMU_setupPioFuncs(X86EMU_pioFuncs * funcs)
+{
+	sys_inb = funcs->inb;
+	sys_inw = funcs->inw;
+	sys_inl = funcs->inl;
+	sys_outb = funcs->outb;
+	sys_outw = funcs->outw;
+	sys_outl = funcs->outl;
+}
+
+/****************************************************************************
+PARAMETERS:
+funcs	- New interrupt vector table to make active
+
+REMARKS:
+This function is used to set the pointers to functions which handle
+interrupt processing in the emulator, allowing the user application to
+hook interrupts as necessary for their application. Any interrupts that
+are not hooked by the user application, and reflected and handled internally
+in the emulator via the interrupt vector table. This allows the application
+to get control when the code being emulated executes specific software
+interrupts.
+****************************************************************************/
+void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[])
+{
+	int i;
+
+	for (i = 0; i < 256; i++)
+		_X86EMU_intrTab[i] = NULL;
+	if (funcs) {
+		for (i = 0; i < 256; i++)
+			_X86EMU_intrTab[i] = funcs[i];
+	}
+}
+
+/****************************************************************************
+PARAMETERS:
+int	- New software interrupt to prepare for
+
+REMARKS:
+This function is used to set up the emulator state to exceute a software
+interrupt. This can be used by the user application code to allow an
+interrupt to be hooked, examined and then reflected back to the emulator
+so that the code in the emulator will continue processing the software
+interrupt as per normal. This essentially allows system code to actively
+hook and handle certain software interrupts as necessary.
+****************************************************************************/
+void X86EMU_prepareForInt(int num)
+{
+	push_word((u16) M.x86.R_FLG);
+	CLEAR_FLAG(F_IF);
+	CLEAR_FLAG(F_TF);
+	push_word(M.x86.R_CS);
+	M.x86.R_CS = mem_access_word(num * 4 + 2);
+	push_word(M.x86.R_IP);
+	M.x86.R_IP = mem_access_word(num * 4);
+	M.x86.intr = 0;
+}
+
+void X86EMU_setMemBase(void *base, size_t size)
+{
+	M.mem_base = (int) base;
+	M.mem_size = size;
+}
+
+void X86EMU_setabseg(void *abseg)
+{
+	M.abseg = (unsigned long) abseg;
+}
diff --git a/util/vgabios/x86emu/src/x86emu/validate.c b/util/vgabios/x86emu/src/x86emu/validate.c
new file mode 100644
index 0000000000..d6e948facf
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/validate.c
@@ -0,0 +1,765 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:     Watcom C 10.6 or later
+* Environment:  32-bit DOS
+* Developer:    Kendall Bennett
+*
+* Description:  Program to validate the x86 emulator library for
+*               correctness. We run the emulator primitive operations
+*               functions against the real x86 CPU, and compare the result
+*               and flags to ensure correctness.
+*
+*               We use inline assembler to compile and build this program.
+*
+****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include "x86emu.h"
+#include "x86emu/prim_asm.h"
+
+/*-------------------------- Implementation -------------------------------*/
+
+#define true 1
+#define false 0
+
+#define ALL_FLAGS   (F_CF | F_PF | F_AF | F_ZF | F_SF | F_OF)
+
+#define VAL_START_BINARY(parm_type,res_type,dmax,smax,dincr,sincr)  \
+{                                                                   \
+    parm_type   d,s;                                                \
+    res_type    r,r_asm;                                            \
+	ulong     	flags,inflags;                                      \
+	int         f,failed = false;                                   \
+    char        buf1[80],buf2[80];                                  \
+    for (d = 0; d < dmax; d += dincr) {                             \
+        for (s = 0; s < smax; s += sincr) {                         \
+            M.x86.R_EFLG = inflags = flags = def_flags;             \
+            for (f = 0; f < 2; f++) {
+
+#define VAL_TEST_BINARY(name)                                           \
+                r_asm = name##_asm(&flags,d,s);                         \
+                r = name(d,s);                                  \
+                if (r != r_asm || M.x86.R_EFLG != flags)                \
+                    failed = true;                                      \
+                if (failed || trace) {
+
+#define VAL_TEST_BINARY_VOID(name)                                      \
+                name##_asm(&flags,d,s);                                 \
+                name(d,s);                                      \
+                r = r_asm = 0;                                          \
+                if (M.x86.R_EFLG != flags)                              \
+                    failed = true;                                      \
+                if (failed || trace) {
+
+#define VAL_FAIL_BYTE_BYTE_BINARY(name)                                                                 \
+                    if (failed)                                                                         \
+                        printk("fail\n");                                                               \
+                    printk("0x%02X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n",                         \
+                        r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));     \
+                    printk("0x%02X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n",                         \
+                        r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_WORD_WORD_BINARY(name)                                                                 \
+                    if (failed)                                                                         \
+                        printk("fail\n");                                                               \
+                    printk("0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n",                         \
+                        r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));   \
+                    printk("0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n",                         \
+                        r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_LONG_LONG_BINARY(name)                                                                 \
+                    if (failed)                                                                         \
+                        printk("fail\n");                                                               \
+                    printk("0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n",                         \
+                        r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+                    printk("0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n",                         \
+                        r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_END_BINARY()                                                    \
+                    }                                                       \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_BYTE_BYTE_BINARY(name)          \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_BINARY(u8,u8,0xFF,0xFF,1,1)   \
+    VAL_TEST_BINARY(name)                   \
+    VAL_FAIL_BYTE_BYTE_BINARY(name)         \
+    VAL_END_BINARY()
+
+#define VAL_WORD_WORD_BINARY(name)                      \
+    printk("Validating %s ... ", #name);                \
+    VAL_START_BINARY(u16,u16,0xFF00,0xFF00,0x100,0x100) \
+    VAL_TEST_BINARY(name)                               \
+    VAL_FAIL_WORD_WORD_BINARY(name)                     \
+    VAL_END_BINARY()
+
+#define VAL_LONG_LONG_BINARY(name)                                      \
+    printk("Validating %s ... ", #name);                                \
+    VAL_START_BINARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000) \
+    VAL_TEST_BINARY(name)                                               \
+    VAL_FAIL_LONG_LONG_BINARY(name)                                     \
+    VAL_END_BINARY()
+
+#define VAL_VOID_BYTE_BINARY(name)          \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_BINARY(u8,u8,0xFF,0xFF,1,1)   \
+    VAL_TEST_BINARY_VOID(name)              \
+    VAL_FAIL_BYTE_BYTE_BINARY(name)         \
+    VAL_END_BINARY()
+
+#define VAL_VOID_WORD_BINARY(name)                      \
+    printk("Validating %s ... ", #name);                \
+    VAL_START_BINARY(u16,u16,0xFF00,0xFF00,0x100,0x100) \
+    VAL_TEST_BINARY_VOID(name)                          \
+    VAL_FAIL_WORD_WORD_BINARY(name)                     \
+    VAL_END_BINARY()
+
+#define VAL_VOID_LONG_BINARY(name)                                      \
+    printk("Validating %s ... ", #name);                                \
+    VAL_START_BINARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000) \
+    VAL_TEST_BINARY_VOID(name)                                          \
+    VAL_FAIL_LONG_LONG_BINARY(name)                                     \
+    VAL_END_BINARY()
+
+#define VAL_BYTE_ROTATE(name)               \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_BINARY(u8,u8,0xFF,8,1,1)      \
+    VAL_TEST_BINARY(name)                   \
+    VAL_FAIL_BYTE_BYTE_BINARY(name)         \
+    VAL_END_BINARY()
+
+#define VAL_WORD_ROTATE(name)                           \
+    printk("Validating %s ... ", #name);                \
+    VAL_START_BINARY(u16,u16,0xFF00,16,0x100,1)         \
+    VAL_TEST_BINARY(name)                               \
+    VAL_FAIL_WORD_WORD_BINARY(name)                     \
+    VAL_END_BINARY()
+
+#define VAL_LONG_ROTATE(name)                                           \
+    printk("Validating %s ... ", #name);                                \
+    VAL_START_BINARY(u32,u32,0xFF000000,32,0x1000000,1)                 \
+    VAL_TEST_BINARY(name)                                               \
+    VAL_FAIL_LONG_LONG_BINARY(name)                                     \
+    VAL_END_BINARY()
+
+#define VAL_START_TERNARY(parm_type,res_type,dmax,smax,dincr,sincr,maxshift)\
+{                                                                   \
+    parm_type   d,s;                                                \
+    res_type    r,r_asm;                                            \
+    u8          shift;                                              \
+	u32         flags,inflags;                                      \
+    int         f,failed = false;                                   \
+    char        buf1[80],buf2[80];                                  \
+    for (d = 0; d < dmax; d += dincr) {                             \
+        for (s = 0; s < smax; s += sincr) {                         \
+            for (shift = 0; shift < maxshift; shift += 1) {        \
+                M.x86.R_EFLG = inflags = flags = def_flags;         \
+                for (f = 0; f < 2; f++) {
+
+#define VAL_TEST_TERNARY(name)                                          \
+                    r_asm = name##_asm(&flags,d,s,shift);               \
+                    r = name(d,s,shift);                           \
+                    if (r != r_asm || M.x86.R_EFLG != flags)            \
+                        failed = true;                                  \
+                    if (failed || trace) {
+
+#define VAL_FAIL_WORD_WORD_TERNARY(name)                                                                \
+                        if (failed)                                                                         \
+                            printk("fail\n");                                                               \
+                        printk("0x%04X = %-15s(0x%04X,0x%04X,%d), flags = %s -> %s\n",                      \
+                            r, #name, d, s, shift, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));   \
+                        printk("0x%04X = %-15s(0x%04X,0x%04X,%d), flags = %s -> %s\n",                      \
+                            r_asm, #name"_asm", d, s, shift, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_LONG_LONG_TERNARY(name)                                                                \
+                        if (failed)                                                                         \
+                            printk("fail\n");                                                               \
+                        printk("0x%08X = %-15s(0x%08X,0x%08X,%d), flags = %s -> %s\n",                      \
+                            r, #name, d, s, shift, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));  \
+                        printk("0x%08X = %-15s(0x%08X,0x%08X,%d), flags = %s -> %s\n",                      \
+                            r_asm, #name"_asm", d, s, shift, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_END_TERNARY()                                                   \
+                        }                                                       \
+                    M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                    if (failed)                                                 \
+                        break;                                                  \
+                    }                                                           \
+                if (failed)                                                     \
+                    break;                                                      \
+                }                                                               \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_WORD_ROTATE_DBL(name)                           \
+    printk("Validating %s ... ", #name);                    \
+    VAL_START_TERNARY(u16,u16,0xFF00,0xFF00,0x100,0x100,16) \
+    VAL_TEST_TERNARY(name)                                  \
+    VAL_FAIL_WORD_WORD_TERNARY(name)                        \
+    VAL_END_TERNARY()
+
+#define VAL_LONG_ROTATE_DBL(name)                                           \
+    printk("Validating %s ... ", #name);                                    \
+    VAL_START_TERNARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000,32) \
+    VAL_TEST_TERNARY(name)                                                  \
+    VAL_FAIL_LONG_LONG_TERNARY(name)                                        \
+    VAL_END_TERNARY()
+
+#define VAL_START_UNARY(parm_type,max,incr)                 \
+{                                                           \
+    parm_type   d,r,r_asm;                                  \
+	u32         flags,inflags;                              \
+    int         f,failed = false;                           \
+    char        buf1[80],buf2[80];                          \
+    for (d = 0; d < max; d += incr) {                       \
+        M.x86.R_EFLG = inflags = flags = def_flags;         \
+        for (f = 0; f < 2; f++) {
+
+#define VAL_TEST_UNARY(name)                                \
+            r_asm = name##_asm(&flags,d);                   \
+            r = name(d);                                \
+            if (r != r_asm || M.x86.R_EFLG != flags) {      \
+                failed = true;
+
+#define VAL_FAIL_BYTE_UNARY(name)                                                               \
+                printk("fail\n");                                                               \
+                printk("0x%02X = %-15s(0x%02X), flags = %s -> %s\n",                            \
+                    r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));    \
+                printk("0x%02X = %-15s(0x%02X), flags = %s -> %s\n",                            \
+                    r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_WORD_UNARY(name)                                                               \
+                printk("fail\n");                                                               \
+                printk("0x%04X = %-15s(0x%04X), flags = %s -> %s\n",                            \
+                    r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));  \
+                printk("0x%04X = %-15s(0x%04X), flags = %s -> %s\n",                            \
+                    r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_LONG_UNARY(name)                                                               \
+                printk("fail\n");                                                               \
+                printk("0x%08X = %-15s(0x%08X), flags = %s -> %s\n",                            \
+                    r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));    \
+                printk("0x%08X = %-15s(0x%08X), flags = %s -> %s\n",                            \
+                    r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_END_UNARY()                                                 \
+                }                                                       \
+            M.x86.R_EFLG = inflags = flags = def_flags | ALL_FLAGS;     \
+            if (failed)                                                 \
+                break;                                                  \
+            }                                                           \
+        if (failed)                                                     \
+            break;                                                      \
+        }                                                               \
+    if (!failed)                                                        \
+        printk("passed\n");                                             \
+}
+
+#define VAL_BYTE_UNARY(name)                \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_UNARY(u8,0xFF,0x1)            \
+    VAL_TEST_UNARY(name)                    \
+    VAL_FAIL_BYTE_UNARY(name)               \
+    VAL_END_UNARY()
+
+#define VAL_WORD_UNARY(name)                \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_UNARY(u16,0xFF00,0x100)       \
+    VAL_TEST_UNARY(name)                    \
+    VAL_FAIL_WORD_UNARY(name)               \
+    VAL_END_UNARY()
+
+#define VAL_WORD_BYTE_UNARY(name)           \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_UNARY(u16,0xFF,0x1)           \
+    VAL_TEST_UNARY(name)                    \
+    VAL_FAIL_WORD_UNARY(name)               \
+    VAL_END_UNARY()
+
+#define VAL_LONG_UNARY(name)                \
+    printk("Validating %s ... ", #name);    \
+    VAL_START_UNARY(u32,0xFF000000,0x1000000) \
+    VAL_TEST_UNARY(name)                    \
+    VAL_FAIL_LONG_UNARY(name)               \
+    VAL_END_UNARY()
+
+#define VAL_BYTE_MUL(name)                                              \
+    printk("Validating %s ... ", #name);                                \
+{                                                                       \
+    u8          d,s;                                                    \
+    u16         r,r_asm;                                                \
+	u32         flags,inflags;                                          \
+    int         f,failed = false;                                       \
+    char        buf1[80],buf2[80];                                      \
+    for (d = 0; d < 0xFF; d += 1) {                                     \
+        for (s = 0; s < 0xFF; s += 1) {                                 \
+            M.x86.R_EFLG = inflags = flags = def_flags;                 \
+            for (f = 0; f < 2; f++) {                                   \
+                name##_asm(&flags,&r_asm,d,s);                          \
+                M.x86.R_AL = d;                                         \
+                name(s);                                            \
+                r = M.x86.R_AX;                                         \
+                if (r != r_asm || M.x86.R_EFLG != flags)                \
+                    failed = true;                                      \
+                if (failed || trace) {                                  \
+                    if (failed)                                         \
+                        printk("fail\n");                               \
+                    printk("0x%04X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n",                         \
+                        r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));     \
+                    printk("0x%04X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n",                         \
+                        r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));  \
+                    }                                                       \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_WORD_MUL(name)                                              \
+    printk("Validating %s ... ", #name);                                \
+{                                                                       \
+    u16         d,s;                                                    \
+    u16         r_lo,r_asm_lo;                                          \
+    u16         r_hi,r_asm_hi;                                          \
+	u32         flags,inflags;                                          \
+    int         f,failed = false;                                       \
+    char        buf1[80],buf2[80];                                      \
+    for (d = 0; d < 0xFF00; d += 0x100) {                               \
+        for (s = 0; s < 0xFF00; s += 0x100) {                           \
+            M.x86.R_EFLG = inflags = flags = def_flags;                 \
+            for (f = 0; f < 2; f++) {                                   \
+                name##_asm(&flags,&r_asm_lo,&r_asm_hi,d,s);             \
+                M.x86.R_AX = d;                                         \
+                name(s);                                            \
+                r_lo = M.x86.R_AX;                                      \
+                r_hi = M.x86.R_DX;                                      \
+                if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\
+                    failed = true;                                      \
+                if (failed || trace) {                                  \
+                    if (failed)                                         \
+                        printk("fail\n");                               \
+                    printk("0x%04X:0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n",                              \
+                        r_hi,r_lo, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));       \
+                    printk("0x%04X:0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n",                              \
+                        r_asm_hi,r_asm_lo, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));  \
+                    }                                                                                               \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_LONG_MUL(name)                                              \
+    printk("Validating %s ... ", #name);                                \
+{                                                                       \
+    u32         d,s;                                                    \
+    u32         r_lo,r_asm_lo;                                          \
+    u32         r_hi,r_asm_hi;                                          \
+	u32         flags,inflags;                                          \
+    int         f,failed = false;                                       \
+    char        buf1[80],buf2[80];                                      \
+    for (d = 0; d < 0xFF000000; d += 0x1000000) {                       \
+        for (s = 0; s < 0xFF000000; s += 0x1000000) {                   \
+            M.x86.R_EFLG = inflags = flags = def_flags;                 \
+            for (f = 0; f < 2; f++) {                                   \
+                name##_asm(&flags,&r_asm_lo,&r_asm_hi,d,s);             \
+                M.x86.R_EAX = d;                                        \
+                name(s);                                            \
+                r_lo = M.x86.R_EAX;                                     \
+                r_hi = M.x86.R_EDX;                                     \
+                if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\
+                    failed = true;                                      \
+                if (failed || trace) {                                  \
+                    if (failed)                                         \
+                        printk("fail\n");                               \
+                    printk("0x%08X:0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n",                              \
+                        r_hi,r_lo, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));       \
+                    printk("0x%08X:0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n",                              \
+                        r_asm_hi,r_asm_lo, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));  \
+                    }                                                                                               \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_BYTE_DIV(name)                                              \
+    printk("Validating %s ... ", #name);                                \
+{                                                                       \
+    u16         d,s;                                                    \
+    u8          r_quot,r_rem,r_asm_quot,r_asm_rem;                      \
+	u32         flags,inflags;                                          \
+    int         f,failed = false;                                       \
+    char        buf1[80],buf2[80];                                      \
+    for (d = 0; d < 0xFF00; d += 0x100) {                               \
+        for (s = 1; s < 0xFF; s += 1) {                                 \
+            M.x86.R_EFLG = inflags = flags = def_flags;                 \
+            for (f = 0; f < 2; f++) {                                   \
+                M.x86.intr = 0;                                         \
+                M.x86.R_AX = d;                                         \
+                name(s);                                            \
+                r_quot = M.x86.R_AL;                                    \
+                r_rem = M.x86.R_AH;                                     \
+                if (M.x86.intr & INTR_SYNCH)                            \
+                    continue;                                           \
+                name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,s);          \
+                if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \
+                    failed = true;                                      \
+                if (failed || trace) {                                  \
+                    if (failed)                                         \
+                        printk("fail\n");                               \
+                    printk("0x%02X:0x%02X = %-15s(0x%04X,0x%02X), flags = %s -> %s\n",                      \
+                        r_quot, r_rem, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));     \
+                    printk("0x%02X:0x%02X = %-15s(0x%04X,0x%02X), flags = %s -> %s\n",                      \
+                        r_asm_quot, r_asm_rem, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));  \
+                    }                                                       \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_WORD_DIV(name)                                              \
+    printk("Validating %s ... ", #name);                                \
+{                                                                       \
+    u32         d,s;                                                    \
+    u16         r_quot,r_rem,r_asm_quot,r_asm_rem;                      \
+	u32         flags,inflags;                                          \
+    int         f,failed = false;                                       \
+    char        buf1[80],buf2[80];                                      \
+    for (d = 0; d < 0xFF000000; d += 0x1000000) {                       \
+        for (s = 0x100; s < 0xFF00; s += 0x100) {                       \
+            M.x86.R_EFLG = inflags = flags = def_flags;                 \
+            for (f = 0; f < 2; f++) {                                   \
+                M.x86.intr = 0;                                         \
+                M.x86.R_AX = d & 0xFFFF;                                \
+                M.x86.R_DX = d >> 16;                                   \
+                name(s);                                            \
+                r_quot = M.x86.R_AX;                                    \
+                r_rem = M.x86.R_DX;                                     \
+                if (M.x86.intr & INTR_SYNCH)                            \
+                    continue;                                           \
+                name##_asm(&flags,&r_asm_quot,&r_asm_rem,d & 0xFFFF,d >> 16,s);\
+                if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \
+                    failed = true;                                      \
+                if (failed || trace) {                                  \
+                    if (failed)                                         \
+                        printk("fail\n");                               \
+                    printk("0x%04X:0x%04X = %-15s(0x%08X,0x%04X), flags = %s -> %s\n",                      \
+                        r_quot, r_rem, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));     \
+                    printk("0x%04X:0x%04X = %-15s(0x%08X,0x%04X), flags = %s -> %s\n",                      \
+                        r_asm_quot, r_asm_rem, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));  \
+                    }                                                       \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+#define VAL_LONG_DIV(name)                                              \
+    printk("Validating %s ... ", #name);                                \
+{                                                                       \
+    u32         d,s;                                                    \
+    u32         r_quot,r_rem,r_asm_quot,r_asm_rem;                      \
+	u32         flags,inflags;                                          \
+    int         f,failed = false;                                       \
+    char        buf1[80],buf2[80];                                      \
+    for (d = 0; d < 0xFF000000; d += 0x1000000) {                       \
+        for (s = 0x100; s < 0xFF00; s += 0x100) {                       \
+            M.x86.R_EFLG = inflags = flags = def_flags;                 \
+            for (f = 0; f < 2; f++) {                                   \
+                M.x86.intr = 0;                                         \
+                M.x86.R_EAX = d;                                        \
+                M.x86.R_EDX = 0;                                        \
+                name(s);                                            \
+                r_quot = M.x86.R_EAX;                                   \
+                r_rem = M.x86.R_EDX;                                    \
+                if (M.x86.intr & INTR_SYNCH)                            \
+                    continue;                                           \
+                name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,0,s);        \
+                if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \
+                    failed = true;                                      \
+                if (failed || trace) {                                  \
+                    if (failed)                                         \
+                        printk("fail\n");                               \
+                    printk("0x%08X:0x%08X = %-15s(0x%08X:0x%08X,0x%08X), flags = %s -> %s\n",                       \
+                        r_quot, r_rem, #name, 0, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG));  \
+                    printk("0x%08X:0x%08X = %-15s(0x%08X:0x%08X,0x%08X), flags = %s -> %s\n",                       \
+                        r_asm_quot, r_asm_rem, #name"_asm", 0, d, s, print_flags(buf1,inflags), print_flags(buf2,flags));   \
+                    }                                                       \
+                M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF);   \
+                if (failed)                                                 \
+                    break;                                                  \
+                }                                                           \
+            if (failed)                                                     \
+                break;                                                      \
+            }                                                               \
+        if (failed)                                                         \
+            break;                                                          \
+        }                                                                   \
+    if (!failed)                                                            \
+        printk("passed\n");                                                 \
+}
+
+void printk(const char *fmt, ...)
+{
+	va_list argptr;
+	va_start(argptr, fmt);
+	vfprintf(stdout, fmt, argptr);
+	fflush(stdout);
+	va_end(argptr);
+}
+
+char *print_flags(char *buf, ulong flags)
+{
+	char *separator = "";
+
+	buf[0] = 0;
+	if (flags & F_CF) {
+		strcat(buf, separator);
+		strcat(buf, "CF");
+		separator = ",";
+	}
+	if (flags & F_PF) {
+		strcat(buf, separator);
+		strcat(buf, "PF");
+		separator = ",";
+	}
+	if (flags & F_AF) {
+		strcat(buf, separator);
+		strcat(buf, "AF");
+		separator = ",";
+	}
+	if (flags & F_ZF) {
+		strcat(buf, separator);
+		strcat(buf, "ZF");
+		separator = ",";
+	}
+	if (flags & F_SF) {
+		strcat(buf, separator);
+		strcat(buf, "SF");
+		separator = ",";
+	}
+	if (flags & F_OF) {
+		strcat(buf, separator);
+		strcat(buf, "OF");
+		separator = ",";
+	}
+	if (separator[0] == 0)
+		strcpy(buf, "None");
+	return buf;
+}
+
+int main(int argc)
+{
+	ulong def_flags;
+	int trace = false;
+
+	if (argc > 1)
+		trace = true;
+	memset(&M, 0, sizeof(M));
+	def_flags = get_flags_asm() & ~ALL_FLAGS;
+
+	VAL_WORD_UNARY(aaa_word);
+	VAL_WORD_UNARY(aas_word);
+
+	VAL_WORD_UNARY(aad_word);
+	VAL_WORD_UNARY(aam_word);
+
+	VAL_BYTE_BYTE_BINARY(adc_byte);
+	VAL_WORD_WORD_BINARY(adc_word);
+	VAL_LONG_LONG_BINARY(adc_long);
+
+	VAL_BYTE_BYTE_BINARY(add_byte);
+	VAL_WORD_WORD_BINARY(add_word);
+	VAL_LONG_LONG_BINARY(add_long);
+
+	VAL_BYTE_BYTE_BINARY(and_byte);
+	VAL_WORD_WORD_BINARY(and_word);
+	VAL_LONG_LONG_BINARY(and_long);
+
+	VAL_BYTE_BYTE_BINARY(cmp_byte);
+	VAL_WORD_WORD_BINARY(cmp_word);
+	VAL_LONG_LONG_BINARY(cmp_long);
+
+	VAL_BYTE_UNARY(daa_byte);
+	VAL_BYTE_UNARY(das_byte);	// Fails for 0x9A (out of range anyway)
+
+	VAL_BYTE_UNARY(dec_byte);
+	VAL_WORD_UNARY(dec_word);
+	VAL_LONG_UNARY(dec_long);
+
+	VAL_BYTE_UNARY(inc_byte);
+	VAL_WORD_UNARY(inc_word);
+	VAL_LONG_UNARY(inc_long);
+
+	VAL_BYTE_BYTE_BINARY(or_byte);
+	VAL_WORD_WORD_BINARY(or_word);
+	VAL_LONG_LONG_BINARY(or_long);
+
+	VAL_BYTE_UNARY(neg_byte);
+	VAL_WORD_UNARY(neg_word);
+	VAL_LONG_UNARY(neg_long);
+
+	VAL_BYTE_UNARY(not_byte);
+	VAL_WORD_UNARY(not_word);
+	VAL_LONG_UNARY(not_long);
+
+	VAL_BYTE_ROTATE(rcl_byte);
+	VAL_WORD_ROTATE(rcl_word);
+	VAL_LONG_ROTATE(rcl_long);
+
+	VAL_BYTE_ROTATE(rcr_byte);
+	VAL_WORD_ROTATE(rcr_word);
+	VAL_LONG_ROTATE(rcr_long);
+
+	VAL_BYTE_ROTATE(rol_byte);
+	VAL_WORD_ROTATE(rol_word);
+	VAL_LONG_ROTATE(rol_long);
+
+	VAL_BYTE_ROTATE(ror_byte);
+	VAL_WORD_ROTATE(ror_word);
+	VAL_LONG_ROTATE(ror_long);
+
+	VAL_BYTE_ROTATE(shl_byte);
+	VAL_WORD_ROTATE(shl_word);
+	VAL_LONG_ROTATE(shl_long);
+
+	VAL_BYTE_ROTATE(shr_byte);
+	VAL_WORD_ROTATE(shr_word);
+	VAL_LONG_ROTATE(shr_long);
+
+	VAL_BYTE_ROTATE(sar_byte);
+	VAL_WORD_ROTATE(sar_word);
+	VAL_LONG_ROTATE(sar_long);
+
+	VAL_WORD_ROTATE_DBL(shld_word);
+	VAL_LONG_ROTATE_DBL(shld_long);
+
+	VAL_WORD_ROTATE_DBL(shrd_word);
+	VAL_LONG_ROTATE_DBL(shrd_long);
+
+	VAL_BYTE_BYTE_BINARY(sbb_byte);
+	VAL_WORD_WORD_BINARY(sbb_word);
+	VAL_LONG_LONG_BINARY(sbb_long);
+
+	VAL_BYTE_BYTE_BINARY(sub_byte);
+	VAL_WORD_WORD_BINARY(sub_word);
+	VAL_LONG_LONG_BINARY(sub_long);
+
+	VAL_BYTE_BYTE_BINARY(xor_byte);
+	VAL_WORD_WORD_BINARY(xor_word);
+	VAL_LONG_LONG_BINARY(xor_long);
+
+	VAL_VOID_BYTE_BINARY(test_byte);
+	VAL_VOID_WORD_BINARY(test_word);
+	VAL_VOID_LONG_BINARY(test_long);
+
+	VAL_BYTE_MUL(imul_byte);
+	VAL_WORD_MUL(imul_word);
+	VAL_LONG_MUL(imul_long);
+
+	VAL_BYTE_MUL(mul_byte);
+	VAL_WORD_MUL(mul_word);
+	VAL_LONG_MUL(mul_long);
+
+	VAL_BYTE_DIV(idiv_byte);
+	VAL_WORD_DIV(idiv_word);
+	VAL_LONG_DIV(idiv_long);
+
+	VAL_BYTE_DIV(div_byte);
+	VAL_WORD_DIV(div_word);
+	VAL_LONG_DIV(div_long);
+
+	return 0;
+}
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/debug.h b/util/vgabios/x86emu/src/x86emu/x86emu/debug.h
new file mode 100755
index 0000000000..56221cbbaf
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/debug.h
@@ -0,0 +1,211 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for debug definitions.
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/debug.h,v 1.4 2000/11/21 23:10:27 tsi Exp $ */
+
+#ifndef __X86EMU_DEBUG_H
+#define __X86EMU_DEBUG_H
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+/* checks to be enabled for "runtime" */
+
+#define CHECK_IP_FETCH_F                0x1
+#define CHECK_SP_ACCESS_F               0x2
+#define CHECK_MEM_ACCESS_F              0x4 /*using regular linear pointer */
+#define CHECK_DATA_ACCESS_F             0x8 /*using segment:offset*/
+
+#ifdef DEBUG
+# define CHECK_IP_FETCH()              	(M.x86.check & CHECK_IP_FETCH_F)
+# define CHECK_SP_ACCESS()             	(M.x86.check & CHECK_SP_ACCESS_F)
+# define CHECK_MEM_ACCESS()            	(M.x86.check & CHECK_MEM_ACCESS_F)
+# define CHECK_DATA_ACCESS()           	(M.x86.check & CHECK_DATA_ACCESS_F)
+#else
+# define CHECK_IP_FETCH()
+# define CHECK_SP_ACCESS()
+# define CHECK_MEM_ACCESS()
+# define CHECK_DATA_ACCESS()
+#endif
+
+#ifdef DEBUG
+# define DEBUG_INSTRUMENT()    	(M.x86.debug & DEBUG_INSTRUMENT_F)
+# define DEBUG_DECODE()        	(M.x86.debug & DEBUG_DECODE_F)
+# define DEBUG_TRACE()         	(M.x86.debug & DEBUG_TRACE_F)
+# define DEBUG_STEP()          	(M.x86.debug & DEBUG_STEP_F)
+# define DEBUG_DISASSEMBLE()   	(M.x86.debug & DEBUG_DISASSEMBLE_F)
+# define DEBUG_BREAK()         	(M.x86.debug & DEBUG_BREAK_F)
+# define DEBUG_SVC()           	(M.x86.debug & DEBUG_SVC_F)
+# define DEBUG_SAVE_IP_CS()     (M.x86.debug & DEBUG_SAVE_IP_CS_F)
+
+# define DEBUG_FS()            	(M.x86.debug & DEBUG_FS_F)
+# define DEBUG_PROC()          	(M.x86.debug & DEBUG_PROC_F)
+# define DEBUG_SYSINT()        	(M.x86.debug & DEBUG_SYSINT_F)
+# define DEBUG_TRACECALL()     	(M.x86.debug & DEBUG_TRACECALL_F)
+# define DEBUG_TRACECALLREGS() 	(M.x86.debug & DEBUG_TRACECALL_REGS_F)
+# define DEBUG_SYS()           	(M.x86.debug & DEBUG_SYS_F)
+# define DEBUG_MEM_TRACE()     	(M.x86.debug & DEBUG_MEM_TRACE_F)
+# define DEBUG_IO_TRACE()      	(M.x86.debug & DEBUG_IO_TRACE_F)
+# define DEBUG_DECODE_NOPRINT() (M.x86.debug & DEBUG_DECODE_NOPRINT_F)
+#else
+# define DEBUG_INSTRUMENT()    	0
+# define DEBUG_DECODE()        	0
+# define DEBUG_TRACE()         	0
+# define DEBUG_STEP()          	0
+# define DEBUG_DISASSEMBLE()   	0
+# define DEBUG_BREAK()         	0
+# define DEBUG_SVC()           	0
+# define DEBUG_SAVE_IP_CS()     0
+# define DEBUG_FS()            	0
+# define DEBUG_PROC()          	0
+# define DEBUG_SYSINT()        	0
+# define DEBUG_TRACECALL()     	0
+# define DEBUG_TRACECALLREGS() 	0
+# define DEBUG_SYS()           	0
+# define DEBUG_MEM_TRACE()     	0
+# define DEBUG_IO_TRACE()      	0
+# define DEBUG_DECODE_NOPRINT() 0
+#endif
+
+#ifdef DEBUG
+
+# define DECODE_PRINTF(x)     	if (DEBUG_DECODE()) \
+									x86emu_decode_printf(x)
+# define DECODE_PRINTF2(x,y)  	if (DEBUG_DECODE()) \
+									x86emu_decode_printf2(x,y)
+
+/*
+ * The following allow us to look at the bytes of an instruction.  The
+ * first INCR_INSTRN_LEN, is called everytime bytes are consumed in
+ * the decoding process.  The SAVE_IP_CS is called initially when the
+ * major opcode of the instruction is accessed.
+ */
+#define INC_DECODED_INST_LEN(x)                    	\
+	if (DEBUG_DECODE())  	                       	\
+		x86emu_inc_decoded_inst_len(x)
+
+#define SAVE_IP_CS(x,y)                               			\
+	if (DEBUG_DECODE() | DEBUG_TRACECALL() | DEBUG_BREAK() \
+              | DEBUG_IO_TRACE() | DEBUG_SAVE_IP_CS()) { \
+		M.x86.saved_cs = x;                          			\
+		M.x86.saved_ip = y;                          			\
+	}
+#else
+# define INC_DECODED_INST_LEN(x)
+# define DECODE_PRINTF(x)
+# define DECODE_PRINTF2(x,y)
+# define SAVE_IP_CS(x,y)
+#endif
+
+#ifdef DEBUG
+#define TRACE_REGS()                                   		\
+	if (DEBUG_DISASSEMBLE()) {                         		\
+		x86emu_just_disassemble();                        	\
+		goto EndOfTheInstructionProcedure;             		\
+	}                                                   	\
+	if (DEBUG_TRACE() || DEBUG_DECODE()) X86EMU_trace_regs()
+#else
+# define TRACE_REGS()
+#endif
+
+#ifdef DEBUG
+# define SINGLE_STEP()		if (DEBUG_STEP()) x86emu_single_step()
+#else
+# define SINGLE_STEP()
+#endif
+
+#define TRACE_AND_STEP()	\
+	TRACE_REGS();			\
+	SINGLE_STEP()
+
+#ifdef DEBUG
+# define START_OF_INSTR()
+# define END_OF_INSTR()		EndOfTheInstructionProcedure: x86emu_end_instr();
+# define END_OF_INSTR_NO_TRACE()	x86emu_end_instr();
+#else
+# define START_OF_INSTR()
+# define END_OF_INSTR()
+# define END_OF_INSTR_NO_TRACE()
+#endif
+
+#ifdef DEBUG
+# define  CALL_TRACE(u,v,w,x,s)                                 \
+	if (DEBUG_TRACECALLREGS())									\
+		x86emu_dump_regs();                                     \
+	if (DEBUG_TRACECALL())                                     	\
+		printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x);
+# define RETURN_TRACE(n,u,v)                                    \
+	if (DEBUG_TRACECALLREGS())									\
+		x86emu_dump_regs();                                     \
+	if (DEBUG_TRACECALL())                                     	\
+		printk("%04x:%04x: %s\n",u,v,n);
+#else
+# define CALL_TRACE(u,v,w,x,s)
+# define RETURN_TRACE(n,u,v)
+#endif
+
+#ifdef DEBUG
+#define	DB(x)	x
+#else
+#define	DB(x)
+#endif
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+extern void x86emu_inc_decoded_inst_len (int x);
+extern void x86emu_decode_printf (char *x);
+extern void x86emu_decode_printf2 (char *x, int y);
+extern void x86emu_just_disassemble (void);
+extern void x86emu_single_step (void);
+extern void x86emu_end_instr (void);
+extern void x86emu_dump_regs (void);
+extern void x86emu_dump_xregs (void);
+extern void x86emu_print_int_vect (u16 iv);
+extern void x86emu_instrument_instruction (void);
+extern void x86emu_check_ip_access (void);
+extern void x86emu_check_sp_access (void);
+extern void x86emu_check_mem_access (u32 p);
+extern void x86emu_check_data_access (uint s, uint o);
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_DEBUG_H */
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/decode.h b/util/vgabios/x86emu/src/x86emu/x86emu/decode.h
new file mode 100755
index 0000000000..321a345399
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/decode.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for instruction decoding logic.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_DECODE_H
+#define __X86EMU_DECODE_H
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+/* Instruction Decoding Stuff */
+
+#define FETCH_DECODE_MODRM(mod,rh,rl) 	fetch_decode_modrm(&mod,&rh,&rl)
+#define DECODE_RM_BYTE_REGISTER(r)    	decode_rm_byte_register(r)
+#define DECODE_RM_WORD_REGISTER(r)    	decode_rm_word_register(r)
+#define DECODE_RM_LONG_REGISTER(r)    	decode_rm_long_register(r)
+#define DECODE_CLEAR_SEGOVR()         	M.x86.mode &= ~SYSMODE_CLRMASK
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+void 	x86emu_intr_raise (u8 type);
+void    fetch_decode_modrm (int *mod,int *regh,int *regl);
+u8      fetch_byte_imm (void);
+u16     fetch_word_imm (void);
+u32     fetch_long_imm (void);
+u8      fetch_data_byte (uint offset);
+u8      fetch_data_byte_abs (uint segment, uint offset);
+u16     fetch_data_word (uint offset);
+u16     fetch_data_word_abs (uint segment, uint offset);
+u32     fetch_data_long (uint offset);
+u32     fetch_data_long_abs (uint segment, uint offset);
+void    store_data_byte (uint offset, u8 val);
+void    store_data_byte_abs (uint segment, uint offset, u8 val);
+void    store_data_word (uint offset, u16 val);
+void    store_data_word_abs (uint segment, uint offset, u16 val);
+void    store_data_long (uint offset, u32 val);
+void    store_data_long_abs (uint segment, uint offset, u32 val);
+u8* 	decode_rm_byte_register(int reg);
+u16* 	decode_rm_word_register(int reg);
+u32* 	decode_rm_long_register(int reg);
+u16* 	decode_rm_seg_register(int reg);
+unsigned decode_rm00_address(int rm);
+unsigned decode_rm01_address(int rm);
+unsigned decode_rm10_address(int rm);
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_DECODE_H */
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h b/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h
new file mode 100755
index 0000000000..5fb271463b
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/fpu.h
@@ -0,0 +1,61 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for FPU instruction decoding.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_FPU_H
+#define __X86EMU_FPU_H
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+/* these have to be defined, whether 8087 support compiled in or not. */
+
+extern void x86emuOp_esc_coprocess_d8 (u8 op1);
+extern void x86emuOp_esc_coprocess_d9 (u8 op1);
+extern void x86emuOp_esc_coprocess_da (u8 op1);
+extern void x86emuOp_esc_coprocess_db (u8 op1);
+extern void x86emuOp_esc_coprocess_dc (u8 op1);
+extern void x86emuOp_esc_coprocess_dd (u8 op1);
+extern void x86emuOp_esc_coprocess_de (u8 op1);
+extern void x86emuOp_esc_coprocess_df (u8 op1);
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_FPU_H */
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/ops.h b/util/vgabios/x86emu/src/x86emu/x86emu/ops.h
new file mode 100755
index 0000000000..65ea676543
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/ops.h
@@ -0,0 +1,45 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for operand decoding functions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_OPS_H
+#define __X86EMU_OPS_H
+
+extern void (*x86emu_optab[0x100])(u8 op1);
+extern void (*x86emu_optab2[0x100])(u8 op2);
+
+#endif /* __X86EMU_OPS_H */
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h b/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h
new file mode 100755
index 0000000000..4fa8d55034
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h
@@ -0,0 +1,971 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		Watcom C++ 10.6 or later
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Inline assembler versions of the primitive operand
+*				functions for faster performance. At the moment this is
+*				x86 inline assembler, but these functions could be replaced
+*				with native inline assembler for each supported processor
+*				platform.
+*
+****************************************************************************/
+/* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/prim_asm.h,v 1.3 2000/04/19 15:48:15 tsi Exp $ */
+
+#ifndef	__X86EMU_PRIM_ASM_H
+#define	__X86EMU_PRIM_ASM_H
+
+#ifdef	__WATCOMC__
+
+#ifndef	VALIDATE
+#define	__HAVE_INLINE_ASSEMBLER__
+#endif
+
+u32		get_flags_asm(void);
+#pragma aux get_flags_asm =			\
+	"pushf"                         \
+	"pop	eax"                  	\
+	value [eax]                     \
+	modify exact [eax];
+
+u16     aaa_word_asm(u32 *flags,u16 d);
+#pragma aux aaa_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"aaa"                  			\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] 				\
+	value [ax]                      \
+	modify exact [ax];
+
+u16     aas_word_asm(u32 *flags,u16 d);
+#pragma aux aas_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"aas"                  			\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] 				\
+	value [ax]                      \
+	modify exact [ax];
+
+u16     aad_word_asm(u32 *flags,u16 d);
+#pragma aux aad_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"aad"                  			\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] 				\
+	value [ax]                      \
+	modify exact [ax];
+
+u16     aam_word_asm(u32 *flags,u8 d);
+#pragma aux aam_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"aam"                  			\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] 				\
+	value [ax]                      \
+	modify exact [ax];
+
+u8      adc_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux adc_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"adc	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     adc_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux adc_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"adc	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     adc_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux adc_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"adc	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+u8      add_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux add_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"add	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     add_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux add_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"add	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     add_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux add_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"add	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+u8      and_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux and_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"and	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     and_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux and_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"and	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     and_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux and_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"and	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+u8      cmp_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux cmp_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"cmp	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     cmp_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux cmp_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"cmp	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     cmp_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux cmp_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"cmp	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+u8      daa_byte_asm(u32 *flags,u8 d);
+#pragma aux daa_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"daa"                  			\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al]            		\
+	value [al]                      \
+	modify exact [al];
+
+u8      das_byte_asm(u32 *flags,u8 d);
+#pragma aux das_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"das"                  			\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al]            		\
+	value [al]                      \
+	modify exact [al];
+
+u8      dec_byte_asm(u32 *flags,u8 d);
+#pragma aux dec_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"dec	al"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al]            		\
+	value [al]                      \
+	modify exact [al];
+
+u16     dec_word_asm(u32 *flags,u16 d);
+#pragma aux dec_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"dec	ax"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax]            		\
+	value [ax]                      \
+	modify exact [ax];
+
+u32     dec_long_asm(u32 *flags,u32 d);
+#pragma aux dec_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"dec	eax"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax]          		\
+	value [eax]                     \
+	modify exact [eax];
+
+u8      inc_byte_asm(u32 *flags,u8 d);
+#pragma aux inc_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"inc	al"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al]            		\
+	value [al]                      \
+	modify exact [al];
+
+u16     inc_word_asm(u32 *flags,u16 d);
+#pragma aux inc_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"inc	ax"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax]            		\
+	value [ax]                      \
+	modify exact [ax];
+
+u32     inc_long_asm(u32 *flags,u32 d);
+#pragma aux inc_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"inc	eax"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax]          		\
+	value [eax]                     \
+	modify exact [eax];
+
+u8      or_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux or_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"or	al,bl"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     or_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux or_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"or	ax,bx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     or_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux or_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"or	eax,ebx"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+u8      neg_byte_asm(u32 *flags,u8 d);
+#pragma aux neg_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"neg	al"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al]            		\
+	value [al]                      \
+	modify exact [al];
+
+u16     neg_word_asm(u32 *flags,u16 d);
+#pragma aux neg_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"neg	ax"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax]            		\
+	value [ax]                      \
+	modify exact [ax];
+
+u32     neg_long_asm(u32 *flags,u32 d);
+#pragma aux neg_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"neg	eax"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax]          		\
+	value [eax]                     \
+	modify exact [eax];
+
+u8      not_byte_asm(u32 *flags,u8 d);
+#pragma aux not_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"not	al"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al]            		\
+	value [al]                      \
+	modify exact [al];
+
+u16     not_word_asm(u32 *flags,u16 d);
+#pragma aux not_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"not	ax"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax]            		\
+	value [ax]                      \
+	modify exact [ax];
+
+u32     not_long_asm(u32 *flags,u32 d);
+#pragma aux not_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"not	eax"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax]          		\
+	value [eax]                     \
+	modify exact [eax];
+
+u8      rcl_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux rcl_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rcl	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     rcl_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux rcl_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rcl	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     rcl_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux rcl_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rcl	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u8      rcr_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux rcr_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rcr	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     rcr_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux rcr_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rcr	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     rcr_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux rcr_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rcr	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u8      rol_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux rol_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rol	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     rol_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux rol_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rol	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     rol_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux rol_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"rol	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u8      ror_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux ror_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"ror	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     ror_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux ror_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"ror	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     ror_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux ror_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"ror	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u8      shl_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux shl_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shl	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     shl_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux shl_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shl	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     shl_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux shl_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shl	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u8      shr_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux shr_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shr	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     shr_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux shr_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shr	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     shr_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux shr_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shr	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u8      sar_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux sar_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sar	al,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [cl]            \
+	value [al]                      \
+	modify exact [al cl];
+
+u16     sar_word_asm(u32 *flags,u16 d, u8 s);
+#pragma aux sar_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sar	ax,cl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [cl]            \
+	value [ax]                      \
+	modify exact [ax cl];
+
+u32     sar_long_asm(u32 *flags,u32 d, u8 s);
+#pragma aux sar_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sar	eax,cl"                	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [cl]          	\
+	value [eax]                     \
+	modify exact [eax cl];
+
+u16		shld_word_asm(u32 *flags,u16 d, u16 fill, u8 s);
+#pragma aux shld_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shld	ax,dx,cl"               \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [dx] [cl]       \
+	value [ax]                      \
+	modify exact [ax dx cl];
+
+u32     shld_long_asm(u32 *flags,u32 d, u32 fill, u8 s);
+#pragma aux shld_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shld	eax,edx,cl"             \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [edx] [cl]     \
+	value [eax]                     \
+	modify exact [eax edx cl];
+
+u16		shrd_word_asm(u32 *flags,u16 d, u16 fill, u8 s);
+#pragma aux shrd_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shrd	ax,dx,cl"               \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [dx] [cl]       \
+	value [ax]                      \
+	modify exact [ax dx cl];
+
+u32     shrd_long_asm(u32 *flags,u32 d, u32 fill, u8 s);
+#pragma aux shrd_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"shrd	eax,edx,cl"             \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [edx] [cl]     \
+	value [eax]                     \
+	modify exact [eax edx cl];
+
+u8      sbb_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux sbb_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sbb	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     sbb_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux sbb_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sbb	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     sbb_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux sbb_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sbb	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+u8      sub_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux sub_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sub	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     sub_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux sub_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sub	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     sub_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux sub_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"sub	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+void	test_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux test_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"test	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	modify exact [al bl];
+
+void	test_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux test_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"test	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	modify exact [ax bx];
+
+void	test_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux test_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"test	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	modify exact [eax ebx];
+
+u8      xor_byte_asm(u32 *flags,u8 d, u8 s);
+#pragma aux xor_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"xor	al,bl"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [al] [bl]            \
+	value [al]                      \
+	modify exact [al bl];
+
+u16     xor_word_asm(u32 *flags,u16 d, u16 s);
+#pragma aux xor_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"xor	ax,bx"                  \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [ax] [bx]            \
+	value [ax]                      \
+	modify exact [ax bx];
+
+u32     xor_long_asm(u32 *flags,u32 d, u32 s);
+#pragma aux xor_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"xor	eax,ebx"                \
+	"pushf"                         \
+	"pop	[edi]"            		\
+	parm [edi] [eax] [ebx]          \
+	value [eax]                     \
+	modify exact [eax ebx];
+
+void    imul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s);
+#pragma aux imul_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"imul	bl"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],ax"				\
+	parm [edi] [esi] [al] [bl]      \
+	modify exact [esi ax bl];
+
+void    imul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s);
+#pragma aux imul_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"imul	bx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],ax"				\
+	"mov	[ecx],dx"				\
+	parm [edi] [esi] [ecx] [ax] [bx]\
+	modify exact [esi edi ax bx dx];
+
+void    imul_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 d,u32 s);
+#pragma aux imul_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"imul	ebx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],eax"				\
+	"mov	[ecx],edx"				\
+	parm [edi] [esi] [ecx] [eax] [ebx] \
+	modify exact [esi edi eax ebx edx];
+
+void    mul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s);
+#pragma aux mul_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"mul	bl"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],ax"				\
+	parm [edi] [esi] [al] [bl]      \
+	modify exact [esi ax bl];
+
+void    mul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s);
+#pragma aux mul_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"mul	bx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],ax"				\
+	"mov	[ecx],dx"				\
+	parm [edi] [esi] [ecx] [ax] [bx]\
+	modify exact [esi edi ax bx dx];
+
+void    mul_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 d,u32 s);
+#pragma aux mul_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"mul	ebx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],eax"				\
+	"mov	[ecx],edx"				\
+	parm [edi] [esi] [ecx] [eax] [ebx] \
+	modify exact [esi edi eax ebx edx];
+
+void	idiv_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s);
+#pragma aux idiv_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"idiv	bl"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],al"				\
+	"mov	[ecx],ah"				\
+	parm [edi] [esi] [ecx] [ax] [bl]\
+	modify exact [esi edi ax bl];
+
+void	idiv_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s);
+#pragma aux idiv_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"idiv	bx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],ax"				\
+	"mov	[ecx],dx"				\
+	parm [edi] [esi] [ecx] [ax] [dx] [bx]\
+	modify exact [esi edi ax dx bx];
+
+void	idiv_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s);
+#pragma aux idiv_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"idiv	ebx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],eax"				\
+	"mov	[ecx],edx"				\
+	parm [edi] [esi] [ecx] [eax] [edx] [ebx]\
+	modify exact [esi edi eax edx ebx];
+
+void	div_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s);
+#pragma aux div_byte_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"div	bl"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],al"				\
+	"mov	[ecx],ah"				\
+	parm [edi] [esi] [ecx] [ax] [bl]\
+	modify exact [esi edi ax bl];
+
+void	div_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s);
+#pragma aux div_word_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"div	bx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],ax"				\
+	"mov	[ecx],dx"				\
+	parm [edi] [esi] [ecx] [ax] [dx] [bx]\
+	modify exact [esi edi ax dx bx];
+
+void	div_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s);
+#pragma aux div_long_asm =			\
+	"push	[edi]"            		\
+	"popf"                         	\
+	"div	ebx"                  	\
+	"pushf"                         \
+	"pop	[edi]"            		\
+	"mov	[esi],eax"				\
+	"mov	[ecx],edx"				\
+	parm [edi] [esi] [ecx] [eax] [edx] [ebx]\
+	modify exact [esi edi eax edx ebx];
+
+#endif
+
+#endif /* __X86EMU_PRIM_ASM_H */
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h b/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h
new file mode 100755
index 0000000000..1633fe1fae
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/prim_ops.h
@@ -0,0 +1,231 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for primitive operation functions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_PRIM_OPS_H
+#define __X86EMU_PRIM_OPS_H
+
+#include "x86emu/prim_asm.h"
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+u16     aaa_word (u16 d);
+u16     aas_word (u16 d);
+u16     aad_word (u16 d);
+u16     aam_word (u8 d);
+u8      adc_byte (u8 d, u8 s);
+u16     adc_word (u16 d, u16 s);
+u32     adc_long (u32 d, u32 s);
+u8      add_byte (u8 d, u8 s);
+u16     add_word (u16 d, u16 s);
+u32     add_long (u32 d, u32 s);
+u8      and_byte (u8 d, u8 s);
+u16     and_word (u16 d, u16 s);
+u32     and_long (u32 d, u32 s);
+u8      cmp_byte (u8 d, u8 s);
+u16     cmp_word (u16 d, u16 s);
+u32     cmp_long (u32 d, u32 s);
+u8      daa_byte (u8 d);
+u8      das_byte (u8 d);
+u8      dec_byte (u8 d);
+u16     dec_word (u16 d);
+u32     dec_long (u32 d);
+u8      inc_byte (u8 d);
+u16     inc_word (u16 d);
+u32     inc_long (u32 d);
+u8      or_byte (u8 d, u8 s);
+u16     or_word (u16 d, u16 s);
+u32     or_long (u32 d, u32 s);
+u8      neg_byte (u8 s);
+u16     neg_word (u16 s);
+u32     neg_long (u32 s);
+u8      not_byte (u8 s);
+u16     not_word (u16 s);
+u32     not_long (u32 s);
+u8      rcl_byte (u8 d, u8 s);
+u16     rcl_word (u16 d, u8 s);
+u32     rcl_long (u32 d, u8 s);
+u8      rcr_byte (u8 d, u8 s);
+u16     rcr_word (u16 d, u8 s);
+u32     rcr_long (u32 d, u8 s);
+u8      rol_byte (u8 d, u8 s);
+u16     rol_word (u16 d, u8 s);
+u32     rol_long (u32 d, u8 s);
+u8      ror_byte (u8 d, u8 s);
+u16     ror_word (u16 d, u8 s);
+u32     ror_long (u32 d, u8 s);
+u8      shl_byte (u8 d, u8 s);
+u16     shl_word (u16 d, u8 s);
+u32     shl_long (u32 d, u8 s);
+u8      shr_byte (u8 d, u8 s);
+u16     shr_word (u16 d, u8 s);
+u32     shr_long (u32 d, u8 s);
+u8      sar_byte (u8 d, u8 s);
+u16     sar_word (u16 d, u8 s);
+u32     sar_long (u32 d, u8 s);
+u16     shld_word (u16 d, u16 fill, u8 s);
+u32     shld_long (u32 d, u32 fill, u8 s);
+u16     shrd_word (u16 d, u16 fill, u8 s);
+u32     shrd_long (u32 d, u32 fill, u8 s);
+u8      sbb_byte (u8 d, u8 s);
+u16     sbb_word (u16 d, u16 s);
+u32     sbb_long (u32 d, u32 s);
+u8      sub_byte (u8 d, u8 s);
+u16     sub_word (u16 d, u16 s);
+u32     sub_long (u32 d, u32 s);
+void    test_byte (u8 d, u8 s);
+void    test_word (u16 d, u16 s);
+void    test_long (u32 d, u32 s);
+u8      xor_byte (u8 d, u8 s);
+u16     xor_word (u16 d, u16 s);
+u32     xor_long (u32 d, u32 s);
+void    imul_byte (u8 s);
+void    imul_word (u16 s);
+void    imul_long (u32 s);
+void 	imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s);
+void    mul_byte (u8 s);
+void    mul_word (u16 s);
+void    mul_long (u32 s);
+void    idiv_byte (u8 s);
+void    idiv_word (u16 s);
+void    idiv_long (u32 s);
+void    div_byte (u8 s);
+void    div_word (u16 s);
+void    div_long (u32 s);
+void    ins (int size);
+void    outs (int size);
+u16     mem_access_word (int addr);
+void    push_word (u16 w);
+void    push_long (u32 w);
+u16     pop_word (void);
+u32		pop_long (void);
+
+#if  defined(__HAVE_INLINE_ASSEMBLER__) && !defined(PRIM_OPS_NO_REDEFINE_ASM)
+
+#define	aaa_word(d)		aaa_word_asm(&M.x86.R_EFLG,d)
+#define aas_word(d)		aas_word_asm(&M.x86.R_EFLG,d)
+#define aad_word(d)		aad_word_asm(&M.x86.R_EFLG,d)
+#define aam_word(d)		aam_word_asm(&M.x86.R_EFLG,d)
+#define adc_byte(d,s)	adc_byte_asm(&M.x86.R_EFLG,d,s)
+#define adc_word(d,s)	adc_word_asm(&M.x86.R_EFLG,d,s)
+#define adc_long(d,s)	adc_long_asm(&M.x86.R_EFLG,d,s)
+#define add_byte(d,s) 	add_byte_asm(&M.x86.R_EFLG,d,s)
+#define add_word(d,s)	add_word_asm(&M.x86.R_EFLG,d,s)
+#define add_long(d,s)	add_long_asm(&M.x86.R_EFLG,d,s)
+#define and_byte(d,s)	and_byte_asm(&M.x86.R_EFLG,d,s)
+#define and_word(d,s)	and_word_asm(&M.x86.R_EFLG,d,s)
+#define and_long(d,s)	and_long_asm(&M.x86.R_EFLG,d,s)
+#define cmp_byte(d,s)	cmp_byte_asm(&M.x86.R_EFLG,d,s)
+#define cmp_word(d,s)	cmp_word_asm(&M.x86.R_EFLG,d,s)
+#define cmp_long(d,s)	cmp_long_asm(&M.x86.R_EFLG,d,s)
+#define daa_byte(d)		daa_byte_asm(&M.x86.R_EFLG,d)
+#define das_byte(d)		das_byte_asm(&M.x86.R_EFLG,d)
+#define dec_byte(d)		dec_byte_asm(&M.x86.R_EFLG,d)
+#define dec_word(d)		dec_word_asm(&M.x86.R_EFLG,d)
+#define dec_long(d)		dec_long_asm(&M.x86.R_EFLG,d)
+#define inc_byte(d)		inc_byte_asm(&M.x86.R_EFLG,d)
+#define inc_word(d)		inc_word_asm(&M.x86.R_EFLG,d)
+#define inc_long(d)		inc_long_asm(&M.x86.R_EFLG,d)
+#define or_byte(d,s)	or_byte_asm(&M.x86.R_EFLG,d,s)
+#define or_word(d,s)	or_word_asm(&M.x86.R_EFLG,d,s)
+#define or_long(d,s)	or_long_asm(&M.x86.R_EFLG,d,s)
+#define neg_byte(s)		neg_byte_asm(&M.x86.R_EFLG,s)
+#define neg_word(s)		neg_word_asm(&M.x86.R_EFLG,s)
+#define neg_long(s)		neg_long_asm(&M.x86.R_EFLG,s)
+#define not_byte(s)		not_byte_asm(&M.x86.R_EFLG,s)
+#define not_word(s)		not_word_asm(&M.x86.R_EFLG,s)
+#define not_long(s)		not_long_asm(&M.x86.R_EFLG,s)
+#define rcl_byte(d,s)	rcl_byte_asm(&M.x86.R_EFLG,d,s)
+#define rcl_word(d,s)	rcl_word_asm(&M.x86.R_EFLG,d,s)
+#define rcl_long(d,s)	rcl_long_asm(&M.x86.R_EFLG,d,s)
+#define rcr_byte(d,s)	rcr_byte_asm(&M.x86.R_EFLG,d,s)
+#define rcr_word(d,s)	rcr_word_asm(&M.x86.R_EFLG,d,s)
+#define rcr_long(d,s)	rcr_long_asm(&M.x86.R_EFLG,d,s)
+#define rol_byte(d,s)	rol_byte_asm(&M.x86.R_EFLG,d,s)
+#define rol_word(d,s)	rol_word_asm(&M.x86.R_EFLG,d,s)
+#define rol_long(d,s)	rol_long_asm(&M.x86.R_EFLG,d,s)
+#define ror_byte(d,s)	ror_byte_asm(&M.x86.R_EFLG,d,s)
+#define ror_word(d,s)	ror_word_asm(&M.x86.R_EFLG,d,s)
+#define ror_long(d,s)	ror_long_asm(&M.x86.R_EFLG,d,s)
+#define shl_byte(d,s)	shl_byte_asm(&M.x86.R_EFLG,d,s)
+#define shl_word(d,s)	shl_word_asm(&M.x86.R_EFLG,d,s)
+#define shl_long(d,s)	shl_long_asm(&M.x86.R_EFLG,d,s)
+#define shr_byte(d,s)	shr_byte_asm(&M.x86.R_EFLG,d,s)
+#define shr_word(d,s)	shr_word_asm(&M.x86.R_EFLG,d,s)
+#define shr_long(d,s)	shr_long_asm(&M.x86.R_EFLG,d,s)
+#define sar_byte(d,s)	sar_byte_asm(&M.x86.R_EFLG,d,s)
+#define sar_word(d,s)	sar_word_asm(&M.x86.R_EFLG,d,s)
+#define sar_long(d,s)	sar_long_asm(&M.x86.R_EFLG,d,s)
+#define shld_word(d,fill,s)	shld_word_asm(&M.x86.R_EFLG,d,fill,s)
+#define shld_long(d,fill,s)	shld_long_asm(&M.x86.R_EFLG,d,fill,s)
+#define shrd_word(d,fill,s)	shrd_word_asm(&M.x86.R_EFLG,d,fill,s)
+#define shrd_long(d,fill,s)	shrd_long_asm(&M.x86.R_EFLG,d,fill,s)
+#define sbb_byte(d,s)	sbb_byte_asm(&M.x86.R_EFLG,d,s)
+#define sbb_word(d,s)	sbb_word_asm(&M.x86.R_EFLG,d,s)
+#define sbb_long(d,s)	sbb_long_asm(&M.x86.R_EFLG,d,s)
+#define sub_byte(d,s)	sub_byte_asm(&M.x86.R_EFLG,d,s)
+#define sub_word(d,s)	sub_word_asm(&M.x86.R_EFLG,d,s)
+#define sub_long(d,s)	sub_long_asm(&M.x86.R_EFLG,d,s)
+#define test_byte(d,s)	test_byte_asm(&M.x86.R_EFLG,d,s)
+#define test_word(d,s)	test_word_asm(&M.x86.R_EFLG,d,s)
+#define test_long(d,s)	test_long_asm(&M.x86.R_EFLG,d,s)
+#define xor_byte(d,s)	xor_byte_asm(&M.x86.R_EFLG,d,s)
+#define xor_word(d,s)	xor_word_asm(&M.x86.R_EFLG,d,s)
+#define xor_long(d,s)	xor_long_asm(&M.x86.R_EFLG,d,s)
+#define imul_byte(s)	imul_byte_asm(&M.x86.R_EFLG,&M.x86.R_AX,M.x86.R_AL,s)
+#define imul_word(s)	imul_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,s)
+#define imul_long(s)	imul_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,s)
+#define imul_long_direct(res_lo,res_hi,d,s)	imul_long_asm(&M.x86.R_EFLG,res_lo,res_hi,d,s)
+#define mul_byte(s)		mul_byte_asm(&M.x86.R_EFLG,&M.x86.R_AX,M.x86.R_AL,s)
+#define mul_word(s)		mul_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,s)
+#define mul_long(s)		mul_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,s)
+#define idiv_byte(s)	idiv_byte_asm(&M.x86.R_EFLG,&M.x86.R_AL,&M.x86.R_AH,M.x86.R_AX,s)
+#define idiv_word(s)	idiv_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,M.x86.R_DX,s)
+#define idiv_long(s)	idiv_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,M.x86.R_EDX,s)
+#define div_byte(s)		div_byte_asm(&M.x86.R_EFLG,&M.x86.R_AL,&M.x86.R_AH,M.x86.R_AX,s)
+#define div_word(s)		div_word_asm(&M.x86.R_EFLG,&M.x86.R_AX,&M.x86.R_DX,M.x86.R_AX,M.x86.R_DX,s)
+#define div_long(s)		div_long_asm(&M.x86.R_EFLG,&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,M.x86.R_EDX,s)
+
+#endif
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_PRIM_OPS_H */
diff --git a/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h b/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h
new file mode 100755
index 0000000000..9cdb0a1b3b
--- /dev/null
+++ b/util/vgabios/x86emu/src/x86emu/x86emu/x86emui.h
@@ -0,0 +1,105 @@
+/****************************************************************************
+*
+*						Realmode X86 Emulator Library
+*
+*            	Copyright (C) 1996-1999 SciTech Software, Inc.
+* 				     Copyright (C) David Mosberger-Tang
+* 					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.  The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:    Kendall Bennett
+*
+* Description:  Header file for system specific functions. These functions
+*				are always compiled and linked in the OS depedent libraries,
+*				and never in a binary portable driver.
+*
+****************************************************************************/
+
+/* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/x86emui.h,v 1.4 2001/04/01 13:59:58 tsi Exp $ */
+
+#ifndef __X86EMU_X86EMUI_H
+#define __X86EMU_X86EMUI_H
+
+/* If we are compiling in C++ mode, we can compile some functions as
+ * inline to increase performance (however the code size increases quite
+ * dramatically in this case).
+ */
+
+#if	defined(__cplusplus) && !defined(_NO_INLINE)
+#define	_INLINE	inline
+#else
+#define	_INLINE static
+#endif
+
+/* Get rid of unused parameters in C++ compilation mode */
+
+#ifdef __cplusplus
+#define	X86EMU_UNUSED(v)
+#else
+#define	X86EMU_UNUSED(v)	v
+#endif
+
+#include "x86emu.h"
+#include "x86emu/regs.h"
+#include "x86emu/debug.h"
+#include "x86emu/decode.h"
+#include "x86emu/ops.h"
+#include "x86emu/prim_ops.h"
+#include "x86emu/fpu.h"
+#include "x86emu/fpu_regs.h"
+
+#ifdef IN_MODULE
+#include <xf86_ansic.h>
+#else
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#endif                                                                                           
+/*--------------------------- Inline Functions ----------------------------*/
+
+#ifdef  __cplusplus
+extern "C" {            			/* Use "C" linkage when in C++ mode */
+#endif
+
+extern u8  	(X86APIP sys_rdb)(u32 addr);
+extern u16 	(X86APIP sys_rdw)(u32 addr);
+extern u32 	(X86APIP sys_rdl)(u32 addr);
+extern void (X86APIP sys_wrb)(u32 addr,u8 val);
+extern void (X86APIP sys_wrw)(u32 addr,u16 val);
+extern void (X86APIP sys_wrl)(u32 addr,u32 val);
+
+extern u8  	(X86APIP sys_inb)(X86EMU_pioAddr addr);
+extern u16 	(X86APIP sys_inw)(X86EMU_pioAddr addr);
+extern u32 	(X86APIP sys_inl)(X86EMU_pioAddr addr);
+extern void (X86APIP sys_outb)(X86EMU_pioAddr addr,u8 val);
+extern void (X86APIP sys_outw)(X86EMU_pioAddr addr,u16 val);
+extern void	(X86APIP sys_outl)(X86EMU_pioAddr addr,u32 val);
+
+#ifdef  __cplusplus
+}                       			/* End of "C" linkage for C++   	*/
+#endif
+
+#endif /* __X86EMU_X86EMUI_H */