diff options
| -rw-r--r-- | src/pc80/Config.lb | 8 | ||||
| -rw-r--r-- | src/pc80/vgabios.c | 772 | ||||
| -rw-r--r-- | src/pc80/vgachip.h | 10 |
3 files changed, 0 insertions, 790 deletions
diff --git a/src/pc80/Config.lb b/src/pc80/Config.lb index fb00418249..ae7bd86155 100644 --- a/src/pc80/Config.lb +++ b/src/pc80/Config.lb @@ -6,17 +6,9 @@ object isa-dma.o object i8259.o #object udelay_timer2.o CONFIG_UDELAY_TIMER2 #object beep.o CONFIG_BEEP -#object vga_load_regs.o VIDEO_CONSOLE -#object font_8x16.o VIDEO_CONSOLE -#object vga_set_mode.o VIDEO_CONSOLE -#object vga_load_pcx.o VIDEO_CONSOLE if CONFIG_IDE dir ide end object keyboard.o - -if CONFIG_LEGACY_VGABIOS - object vgabios.o -end diff --git a/src/pc80/vgabios.c b/src/pc80/vgabios.c deleted file mode 100644 index a6806d3947..0000000000 --- a/src/pc80/vgabios.c +++ /dev/null @@ -1,772 +0,0 @@ -#include <console/console.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#undef __KERNEL__ -#include <arch/io.h> -//#include <printk.h> -#include <string.h> -#include "vgachip.h" - -/* vgabios.c. Derived from: */ - -/*------------------------------------------------------------ -*- C -*- - * 2 Kernel Monte a.k.a. Linux loading Linux on x86 - * - * Erik Arjan Hendriks <hendriks@lanl.gov> - * - * This version is a derivative of the original two kernel monte - * which is (C) 2000 Scyld. - * - * Copyright (C) 2000 Scyld Computing Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * Portions related to the alpha architecture are: - * - * Copyright(C) 2001 University of California. LA-CC Number 01-67. - * This software has been authored by an employee or employees of the - * University of California, operator of the Los Alamos National - * Laboratory under Contract No. W-7405-ENG-36 with the U.S. - * Department of Energy. The U.S. Government has rights to use, - * reproduce, and distribute this software. If the software is - * modified to produce derivative works, such modified software should - * be clearly marked, so as not to confuse it with the version - * available from LANL. - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by - * reference to http://www.gnu.org/licenses/gpl.html. - * - * This software is provided by the author(s) "as is" and any express - * or implied warranties, including, but not limited to, the implied - * warranties of merchantability and fitness for a particular purpose - * are disclaimed. In no event shall the author(s) be liable for any - * direct, indirect, incidental, special, exemplary, or consequential - * damages (including, but not limited to, procurement of substitute - * goods or services; loss of use, data, or profits; or business - * interruption) however caused and on any theory of liability, - * whether in contract, strict liability, or tort (including - * negligence or otherwise) arising in any way out of the use of this - * software, even if advised of the possibility of such damage. - * - * $Id$ - *--------------------------------------------------------------------*/ - -/* The address arguments to this function are PHYSICAL ADDRESSES */ -static void real_mode_switch_call_vga(unsigned long devfn) -{ - __asm__ __volatile__ ( - // paranoia -- does ecx get saved? not sure. This is - // the easiest safe thing to do. - " pushal\n" - /* save the stack */ - " mov %esp, __stack\n" - " jmp 1f\n" - "__stack: .long 0\n" - "1:\n" - /* get devfn into %ecx */ - " movl %esp, %ebp\n" - " movl 8(%ebp), %ecx\n" - /* This configures CS properly for real mode. */ - " ljmp $0x28, $__rms_16bit\n" - "__rms_16bit: \n" - ".code16 \n" - /* 16 bit code from here on... */ - - /* Load the segment registers w/ properly configured segment - * descriptors. They will retain these configurations (limits, - * writability, etc.) once protected mode is turned off. */ - " mov $0x30, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov %ax, %ss \n" - - /* Turn off protection (bit 0 in CR0) */ - " movl %cr0, %eax \n" - " andl $0xFFFFFFFE, %eax \n" - " movl %eax, %cr0 \n" - - /* Now really going into real mode */ - " ljmp $0, $__rms_real \n" - "__rms_real: \n" - - // put the stack at the end of page zero. - // that way we can easily share it between real and protected, - // since the 16-bit ESP at segment 0 will work for any case. - /* Setup a stack */ - " mov $0x0, %ax \n" - " mov %ax, %ss \n" - " movl $0x1000, %eax \n" - " movl %eax, %esp \n" - /* debugging for RGM */ - " mov $0x11, %al \n" - " outb %al, $0x80\n" - - /* Dump zeros in the other segregs */ - " xor %ax, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov $0x40, %ax \n" - " mov %ax, %ds \n" - " mov %cx, %ax \n" - " .byte 0x9a, 0x03, 0, 0, 0xc0 \n" - " movb $0x55, %al\noutb %al, $0x80\n" - /* if we got here, just about done. - * Need to get back to protected mode */ - "movl %cr0, %eax\n" - // "andl $0x7FFAFFD1, %eax\n" /* PG,AM,WP,NE,TS,EM,MP = 0 */ - // "orl $0x60000001, %eax\n" /* CD, NW, PE = 1 */ - "orl $0x0000001, %eax\n" /* PE = 1 */ - "movl %eax, %cr0\n" - /* Now that we are in protected mode jump to a 32 bit code segment. */ - "data32 ljmp $0x10, $vgarestart\n" - "vgarestart:\n" - ".code32\n" - " movw $0x18, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov %ax, %ss \n" - ".globl vga_exit\n" - "vga_exit:\n" - " mov __stack, %esp\n" - " popal\n" - ); -} - -__asm__ (".text\n""real_mode_switch_end:\n"); -extern char real_mode_switch_end[]; - -/* call vga bios int 10 function 0x4f14 to enable main console - epia-m does not always autosence the main console so forcing it on is good !! */ - -void vga_enable_console() -{ - __asm__ __volatile__ ( - // paranoia -- does ecx get saved? not sure. This is - // the easiest safe thing to do. - " pushal\n" - /* save the stack */ - " mov %esp, __stack\n" - - /* This configures CS properly for real mode. */ - " ljmp $0x28, $__vga_ec_16bit\n" - "__vga_ec_16bit: \n" - ".code16 \n" - /* 16 bit code from here on... */ - - /* Load the segment registers w/ properly configured segment - * descriptors. They will retain these configurations (limits, - * writability, etc.) once protected mode is turned off. */ - " mov $0x30, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov %ax, %ss \n" - - /* Turn off protection (bit 0 in CR0) */ - " movl %cr0, %eax \n" - " andl $0xFFFFFFFE, %eax \n" - " movl %eax, %cr0 \n" - - /* Now really going into real mode */ - " ljmp $0, $__vga_ec_real \n" - "__vga_ec_real: \n" - - // put the stack at the end of page zero. - // that way we can easily share it between real and protected, - // since the 16-bit ESP at segment 0 will work for any case. - /* Setup a stack */ - " mov $0x0, %ax \n" - " mov %ax, %ss \n" - " movl $0x1000, %eax \n" - " movl %eax, %esp \n" - /* debugging for RGM */ - " mov $0x11, %al \n" - " outb %al, $0x80\n" - - /* Dump zeros in the other segregs */ - " xor %ax, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - /* ask bios to enable main console */ - /* set up for int 10 call - values found from X server bios call routines */ - " movw $0x4f14,%ax \n" - " movw $0x8003,%bx \n" - " movw $1, %cx \n" - " movw $0, %dx \n" - " movw $0, %di \n" - " .byte 0xcd, 0x10 \n" - " movb $0x55, %al\noutb %al, $0x80\n" - /* if we got here, just about done. - * Need to get back to protected mode */ - "movl %cr0, %eax\n" - // "andl $0x7FFAFFD1, %eax\n" /* PG,AM,WP,NE,TS,EM,MP = 0 */ - // "orl $0x60000001, %eax\n" /* CD, NW, PE = 1 */ - "orl $0x0000001, %eax\n" /* PE = 1 */ - "movl %eax, %cr0\n" - /* Now that we are in protected mode jump to a 32 bit code segment. */ - "data32 ljmp $0x10, $vga_ec_restart\n" - "vga_ec_restart:\n" - ".code32\n" - " movw $0x18, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov %ax, %ss \n" - ".globl vga__ec_exit\n" - "vga_ec_exit:\n" - " mov __stack, %esp\n" - " popal\n" - ); -} - - -void -do_vgabios(void) -{ - device_t dev; - unsigned long busdevfn; - unsigned int rom = 0; - unsigned char *buf; - unsigned int size = 64*1024; - int i; - - for (i=0x400; i<0x500; i++) { - //printk_debug("%02x%c", *(unsigned char *)i, - // i%16==15 ? '\n' : ' '); - *(unsigned char *) i = 0; - } - -/* for (i=0x400; i<0x500; i++) { - printk_debug("%02x%c", *(unsigned char *)i, - i%16==15 ? '\n' : ' '); - } -*/ - dev = dev_find_class(PCI_CLASS_DISPLAY_VGA<<8 , 0); - - if (! dev) { - printk_debug("NO VGA FOUND\n"); - return; - } - printk_debug("found VGA: vid=%x, did=%x\n", dev->vendor, dev->device); - -#ifdef VGABIOS_START - // Use VGA BIOS blob at specified address - rom = VGABIOS_START; -#else - rom = pci_read_config32(dev, PCI_ROM_ADDRESS); - // paranoia - rom = 0xf0000000; - pci_write_config32(dev, PCI_ROM_ADDRESS, rom|1); - printk_debug("rom base, size: %x\n", rom); -#endif - buf = (unsigned char *) rom; - if ((buf[0] == 0x55) && (buf[1] == 0xaa)) { - memcpy((void *) 0xc0000, buf, size); - -#define VGABIOS_WRITE_PROTECT 1 -#ifdef VGABIOS_WRITE_PROTECT - write_protect_vgabios(); -#endif - - for(i = 0; i < 16; i++) - printk_debug("0x%x ", buf[i]); - // check signature again - buf = (unsigned char *) 0xc0000; - if (buf[0]==0x55 && buf[1]==0xAA) { - busdevfn = (dev->bus->secondary << 8) | dev->path.u.pci.devfn; - printk_debug("bus/devfn = %#x\n", busdevfn); - - real_mode_switch_call_vga(busdevfn); - //for( i = 0 ; i < 0x500; i++){ - // printk_debug("%02x%c",*(unsigned char *)i, - // i%16 == 15 ? '\n':' '); - //} - } else - printk_debug("Failed to copy VGA BIOS to 0xc0000\n"); - - } else - printk_debug("BAD SIGNATURE 0x%x 0x%x\n", buf[0], buf[1]); -#ifndef VGABIOS_START - pci_write_config32(dev, PCI_ROM_ADDRESS, 0); -#endif -} - - -// we had hoped to avoid this. -// this is a stub IDT only. It's main purpose is to ignore calls -// to the BIOS. -// no longer. Dammit. We have to respond to these. -struct realidt { - unsigned short offset, cs; -}; - -// from a handy writeup that andrey found. - -// handler. -// There are some assumptions we can make here. -// First, the Top Of Stack (TOS) is located on the top of page zero. -// we can share this stack between real and protected mode. -// that simplifies a lot of things ... -// we'll just push all the registers on the stack as longwords, -// and pop to protected mode. -// second, since this only ever runs as part of linuxbios, -// we know all the segment register values -- so we don't save any. -// keep the handler that calls things small. It can do a call to -// more complex code in linuxbios itself. This helps a lot as we don't -// have to do address fixup in this little stub, and calls are absolute -// so the handler is relocatable. -void handler(void) { - __asm__ __volatile__ ( - ".code16\n" - "idthandle:\n" - " pushal\n" - " movb $0, %al\n" - " ljmp $0, $callbiosint16\n" - "end_idthandle:\n" - ".code32\n" - ); - -} - -// Calling conventions. The first C function is called with this stuff -// on the stack. They look like value parameters, but note that if you -// modify them they will go back to the INTx function modified. -// the C function will call the biosint function with these as -// REFERENCE parameters. In this way, we can easily get -// returns back to the INTx caller (i.e. vgabios) -void callbiosint(void) { - __asm__ __volatile__ ( - ".code16\n" - "callbiosint16:\n" - " push %ds \n" - " push %es \n" - " push %fs \n" - " push %gs \n" - // clean up the int #. To save space we put it in the lower - // byte. But the top 24 bits are junk. - "andl $0xff, %eax\n" - // this push does two things: - // - put the INT # on the stack as a parameter - // - provides us with a temp for the %cr0 mods. - "pushl %eax\n" - "movl %cr0, %eax\n" - //"andl $0x7FFAFFD1, %eax\n" /* PG,AM,WP,NE,TS,EM,MP = 0 */ - //"orl $0x60000001, %eax\n" /* CD, NW, PE = 1 */ - "orl $0x00000001, %eax\n" /* PE = 1 */ - "movl %eax, %cr0\n" - /* Now that we are in protected mode jump to a 32 bit code segment. */ - "data32 ljmp $0x10, $biosprotect\n" - "biosprotect:\n" - ".code32\n" - " movw $0x18, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov %ax, %ss \n" - " call biosint \n" - // back to real mode ... - " ljmp $0x28, $__rms_16bit2\n" - "__rms_16bit2: \n" - ".code16 \n" /* 16 bit code from here on... */ - - /* Load the segment registers w/ properly configured segment - * descriptors. They will retain these configurations (limits, - * writability, etc.) once protected mode is turned off. */ - " mov $0x30, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov %ax, %ss \n" - - /* Turn off protection (bit 0 in CR0) */ - " movl %cr0, %eax \n" - " andl $0xFFFFFFFE, %eax \n" - " movl %eax, %cr0 \n" - - /* Now really going into real mode */ - " ljmp $0, $__rms_real2 \n" - "__rms_real2: \n" - - /* Setup a stack */ - " mov $0x0, %ax \n" - " mov %ax, %ss \n" - /* ebugging for RGM */ - " mov $0x11, %al \n" - " outb %al, $0x80\n" - " xor %ax, %ax \n" - " mov %ax, %ds \n" - " mov %ax, %es \n" - " mov %ax, %fs \n" - " mov %ax, %gs \n" - " mov $0x40, %ax \n" - " mov %ax, %ds \n" - // pop the INT # that you pushed earlier - " popl %eax\n" - " pop %gs \n" - " pop %fs \n" - " pop %es \n" - " pop %ds \n" - " popal\n" - " iret\n" - ".code32\n" - ); -} - - -enum { - PCIBIOS = 0x1a, - MEMSIZE = 0x12 -}; -int -pcibios( - unsigned long *pedi, - unsigned long *pesi, - unsigned long *pebp, - unsigned long *pesp, - unsigned long *pebx, - unsigned long *pedx, - unsigned long *pecx, - unsigned long *peax, - unsigned long *pflags - ); -int -handleint21( - unsigned long *pedi, - unsigned long *pesi, - unsigned long *pebp, - unsigned long *pesp, - unsigned long *pebx, - unsigned long *pedx, - unsigned long *pecx, - unsigned long *peax, - unsigned long *pflags - ); - -extern void vga_exit(void); - -int -biosint( - unsigned long intnumber, - unsigned long gsfs, - unsigned long dses, - unsigned long edi, - unsigned long esi, - unsigned long ebp, - unsigned long esp, - unsigned long ebx, - unsigned long edx, - unsigned long ecx, - unsigned long eax, - unsigned long cs_ip, - unsigned short stackflags - ) { - unsigned long ip; - unsigned long cs; - unsigned long flags; - int ret = -1; - - ip = cs_ip & 0xffff; - cs = cs_ip >> 16; - flags = stackflags; - - printk_debug("biosint: # 0x%lx, eax 0x%lx ebx 0x%lx ecx 0x%lx edx 0x%lx\n", - intnumber, eax, ebx, ecx, edx); - printk_debug("biosint: ebp 0x%lx esp 0x%lx edi 0x%lx esi 0x%lx\n", ebp, esp, edi, esi); - printk_debug("biosint: ip 0x%x cs 0x%x flags 0x%x\n", ip, cs, flags); - // cases in a good compiler are just as good as your own tables. - switch (intnumber) { - case 0 ... 15: - // These are not BIOS service, but the CPU-generated exceptions - printk_info("biosint: Oops, exception %u\n", intnumber); - if (esp < 0x1000) { - printk_debug("Stack contents: "); - while (esp < 0x1000) { - printk_debug("0x%04x ", *(unsigned short *) esp); - esp += 2; - } - printk_debug("\n"); - } - printk_debug("biosint: Bailing out\n"); - // "longjmp" - vga_exit(); - break; - - case PCIBIOS: - ret = pcibios( &edi, &esi, &ebp, &esp, - &ebx, &edx, &ecx, &eax, &flags); - break; - case MEMSIZE: - // who cares. - eax = 64 * 1024; - ret = 0; - break; - case 0x15: - ret=handleint21( &edi, &esi, &ebp, &esp, - &ebx, &edx, &ecx, &eax, &flags); - break; - default: - printk_info("BIOSINT: Unsupport int #0x%x\n", - intnumber); - break; - } - if (ret) - flags |= 1; // carry flags - else - flags &= ~1; - stackflags = flags; - return ret; -} - - -void setup_realmode_idt(void) -{ - extern unsigned char idthandle, end_idthandle; - int i; - struct realidt *idts = (struct realidt *) 0; - int codesize = &end_idthandle - &idthandle; - unsigned char *intbyte, *codeptr; - - // for each int, we create a customized little handler - // that just pushes %ax, puts the int # in %al, - // then calls the common interrupt handler. - // this necessitated because intel didn't know much about - // architecture when they did the 8086 (it shows) - // (hmm do they know anymore even now :-) - // obviously you can see I don't really care about memory - // efficiency. If I did I would probe back through the stack - // and get it that way. But that's really disgusting. - for (i = 0; i < 256; i++) { - idts[i].cs = 0; - codeptr = (char*) 4096 + i * codesize; - idts[i].offset = (unsigned) codeptr; - memcpy(codeptr, &idthandle, codesize); - intbyte = codeptr + 3; - *intbyte = i; - } - - // fixed entry points - - // VGA BIOSes tend to hardcode f000:f065 as the previous handler of - // int10. - // calling convention here is the same as INTs, we can reuse - // the int entry code. - codeptr = (char*) 0xff065; - memcpy(codeptr, &idthandle, codesize); - intbyte = codeptr + 3; - *intbyte = 0x42; /* int42 is the relocated int10 */ -} - - - -enum { - CHECK = 0xb001, - FINDDEV = 0xb102, - READCONFBYTE = 0xb108, - READCONFWORD = 0xb109, - READCONFDWORD = 0xb10a, - WRITECONFBYTE = 0xb10b, - WRITECONFWORD = 0xb10c, - WRITECONFDWORD = 0xb10d -}; - -// errors go in AH. Just set these up so that word assigns -// will work. KISS. -enum { - PCIBIOS_NODEV = 0x8600, - PCIBIOS_BADREG = 0x8700 -}; - -int -pcibios( - unsigned long *pedi, - unsigned long *pesi, - unsigned long *pebp, - unsigned long *pesp, - unsigned long *pebx, - unsigned long *pedx, - unsigned long *pecx, - unsigned long *peax, - unsigned long *pflags - ) { - unsigned long edi = *pedi; - unsigned long esi = *pesi; - unsigned long ebp = *pebp; - unsigned long esp = *pesp; - unsigned long ebx = *pebx; - unsigned long edx = *pedx; - unsigned long ecx = *pecx; - unsigned long eax = *peax; - unsigned long flags = *pflags; - unsigned short func = (unsigned short) eax; - int retval = 0; - unsigned short devid, vendorid, devfn; - short devindex; /* Use short to get rid of gabage in upper half of 32-bit register */ - unsigned char bus; - device_t dev; - - switch(func) { - case CHECK: - *pedx = 0x4350; - *pecx = 0x2049; - retval = 0; - break; - case FINDDEV: - { - devid = *pecx; - vendorid = *pedx; - devindex = *pesi; - dev = 0; - while ((dev = dev_find_device(vendorid, devid, dev))) { - if (devindex <= 0) - break; - devindex--; - } - if (dev) { - unsigned short busdevfn; - *peax = 0; - // busnum is an unsigned char; - // devfn is an int, so we mask it off. - busdevfn = (dev->bus->secondary << 8) - | (dev->path.u.pci.devfn & 0xff); - printk_debug("0x%x: return 0x%x\n", func, busdevfn); - *pebx = busdevfn; - retval = 0; - } else { - *peax = PCIBIOS_NODEV; - retval = -1; - } - } - break; - case READCONFDWORD: - case READCONFWORD: - case READCONFBYTE: - case WRITECONFDWORD: - case WRITECONFWORD: - case WRITECONFBYTE: - { - unsigned long dword; - unsigned short word; - unsigned char byte; - unsigned char reg; - - devfn = *pebx & 0xff; - bus = *pebx >> 8; - reg = *pedi; - dev = dev_find_slot(bus, devfn); - if (! dev) { - printk_debug("0x%x: BAD DEVICE bus %d devfn 0x%x\n", func, bus, devfn); - // idiots. the pcibios guys assumed you'd never pass a bad bus/devfn! - *peax = PCIBIOS_BADREG; - retval = -1; - } - switch(func) { - case READCONFBYTE: - byte = pci_read_config8(dev, reg); - *pecx = byte; - break; - case READCONFWORD: - word = pci_read_config16(dev, reg); - *pecx = word; - break; - case READCONFDWORD: - dword = pci_read_config32(dev, reg); - *pecx = dword; - break; - case WRITECONFBYTE: - byte = *pecx; - pci_write_config8(dev, reg, byte); - break; - case WRITECONFWORD: - word = *pecx; - pci_write_config16(dev, reg, word); - break; - case WRITECONFDWORD: - dword = *pecx; - pci_write_config32(dev, reg, dword); - break; - } - - if (retval) - retval = PCIBIOS_BADREG; - printk_debug("0x%x: bus %d devfn 0x%x reg 0x%x val 0x%lx\n", func, bus, devfn, reg, *pecx); - *peax = 0; - retval = 0; - } - break; - default: - printk_err("UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func); - break; - } - - return retval; -} - - - -int handleint21( unsigned long *edi, unsigned long *esi, unsigned long *ebp, - unsigned long *esp, unsigned long *ebx, unsigned long *edx, - unsigned long *ecx, unsigned long *eax, unsigned long *flags) -{ -int res=-1; - switch(*eax&0xffff) - { - case 0x5f19: - break; - case 0x5f18: - *eax=0x5f; - *ebx=0x545; // MCLK = 133, 32M frame buffer, 256 M main memory - // *ebx = 0x515; // MCLK = 133, 32M frame buffer, 128 M main memory - *ecx=0x060; - res=0; - break; - case 0x5f00: - *eax = 0x8600; - break; - case 0x5f01: - *eax = 0x5f; - *ecx = (*ecx & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768 - res = 0; - break; - case 0x5f02: - *eax=0x5f; - *ebx= (*ebx & 0xffff0000) | 2; - *ecx= (*ecx & 0xffff0000) | 0x401; // PAL + crt only - *edx= (*edx & 0xffff0000) | 0; // TV Layout - default - res=0; - break; - case 0x5f0f: - *eax=0x860f; - //*ebx=0; - //*ecx=0; - //*edx=0; - //res=0; - break; - } - return res; -} diff --git a/src/pc80/vgachip.h b/src/pc80/vgachip.h deleted file mode 100644 index cbbd974174..0000000000 --- a/src/pc80/vgachip.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef _PC80_VGABIOS -#define _PC80_VGABIOS - -extern struct chip_operations pc80_vgabios_control; - -struct pc80_vgabios_config { - int nothing; -}; - -#endif /* _PC80_VGABIOS */ |