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-rw-r--r--util/vgabios/int10.c476
1 files changed, 0 insertions, 476 deletions
diff --git a/util/vgabios/int10.c b/util/vgabios/int10.c
deleted file mode 100644
index 21ba7fbfa7..0000000000
--- a/util/vgabios/int10.c
+++ /dev/null
@@ -1,476 +0,0 @@
-#include <stdio.h>
-#include <stdtypes.h>
-#include "testbios.h"
-
-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(void)
-{
-#if 0
- 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;
- }
-#endif
- return 1;
-}
-#endif
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