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added testbios for V2 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1624 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Li-Ta Lo 2004-07-08 17:18:27 +00:00
parent 4c5060dc2b
commit 8152126529
36 changed files with 25688 additions and 0 deletions
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28
util/vgabios/Makefile Normal file
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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

267
util/vgabios/helper_exec.c Normal file
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/* $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]);
}
*/

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util/vgabios/helper_mem.c Normal file
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/* $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

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#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

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#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;
}

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#include <stdio.h>
int int16_handler(void)
{
printf("\nint16: keyboard not supported right now.\n");
return 1;
}

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#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;
}
}

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#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;
}

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#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
}

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#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);

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void x_outb(u16 port, u8 val);
#define outb x_outb

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/* $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

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#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;
}

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util/vgabios/x86emu/include/msr.h Executable file
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#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 */

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util/vgabios/x86emu/include/x86emu.h Executable file
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/****************************************************************************
*
* 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 */

115
util/vgabios/x86emu/include/x86emu/fpu_regs.h Executable file
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/****************************************************************************
*
* 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 */

336
util/vgabios/x86emu/include/x86emu/regs.h Executable file
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/****************************************************************************
*
* 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 */

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/****************************************************************************
*
* 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 */

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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.

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/****************************************************************************
*
* 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");
}

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/****************************************************************************
*
* 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 */
}

944
util/vgabios/x86emu/src/x86emu/fpu.c Normal file
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@ -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();
}

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#############################################################################
#
# 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"

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#############################################################################
#
# 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.

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/****************************************************************************
*
* 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;
}

765
util/vgabios/x86emu/src/x86emu/validate.c Normal file
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@ -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;
}

211
util/vgabios/x86emu/src/x86emu/x86emu/debug.h Executable file
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/****************************************************************************
*
* 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 */

87
util/vgabios/x86emu/src/x86emu/x86emu/decode.h Executable file
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/****************************************************************************
*
* 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 */

61
util/vgabios/x86emu/src/x86emu/x86emu/fpu.h Executable file
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/****************************************************************************
*
* 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 */

45
util/vgabios/x86emu/src/x86emu/x86emu/ops.h Executable file
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/****************************************************************************
*
* 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 */

971
util/vgabios/x86emu/src/x86emu/x86emu/prim_asm.h Executable file
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/****************************************************************************
*
* 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 */

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/****************************************************************************
*
* 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 */

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/****************************************************************************
*
* 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 */