mirror of
git://source.winehq.org/git/wine.git
synced 2024-11-01 22:50:08 +00:00
656 lines
22 KiB
C
656 lines
22 KiB
C
/*
|
|
* DPMI 0.9 emulation
|
|
*
|
|
* Copyright 1995 Alexandre Julliard
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "winternl.h"
|
|
#include "wine/winbase16.h"
|
|
#include "wownt32.h"
|
|
#include "kernel16_private.h"
|
|
#include "dosexe.h"
|
|
|
|
#include "excpt.h"
|
|
#include "wine/debug.h"
|
|
#include "wine/exception.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(int31);
|
|
|
|
static void* lastvalloced = NULL;
|
|
|
|
/**********************************************************************
|
|
* DPMI_xalloc
|
|
* special virtualalloc, allocates linearly monoton growing memory.
|
|
* (the usual VirtualAlloc does not satisfy that restriction)
|
|
*/
|
|
static LPVOID DPMI_xalloc( DWORD len )
|
|
{
|
|
LPVOID ret;
|
|
LPVOID oldlastv = lastvalloced;
|
|
|
|
if (lastvalloced)
|
|
{
|
|
int xflag = 0;
|
|
|
|
ret = NULL;
|
|
while (!ret)
|
|
{
|
|
ret = VirtualAlloc( lastvalloced, len,
|
|
MEM_COMMIT|MEM_RESERVE, PAGE_EXECUTE_READWRITE );
|
|
if (!ret)
|
|
lastvalloced = (char *) lastvalloced + 0x10000;
|
|
|
|
/* we failed to allocate one in the first round.
|
|
* try non-linear
|
|
*/
|
|
if (!xflag && (lastvalloced<oldlastv))
|
|
{
|
|
/* wrapped */
|
|
FIXME( "failed to allocate linearly growing memory (%u bytes), "
|
|
"using non-linear growing...\n", len );
|
|
xflag++;
|
|
}
|
|
|
|
/* if we even fail to allocate something in the next
|
|
* round, return NULL
|
|
*/
|
|
if ((xflag==1) && (lastvalloced >= oldlastv))
|
|
xflag++;
|
|
|
|
if ((xflag==2) && (lastvalloced < oldlastv)) {
|
|
FIXME( "failed to allocate any memory of %u bytes!\n", len );
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ret = VirtualAlloc( NULL, len,
|
|
MEM_COMMIT|MEM_RESERVE, PAGE_EXECUTE_READWRITE );
|
|
}
|
|
|
|
lastvalloced = (LPVOID)(((DWORD)ret+len+0xffff)&~0xffff);
|
|
return ret;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* DPMI_xfree
|
|
*/
|
|
static void DPMI_xfree( LPVOID ptr )
|
|
{
|
|
VirtualFree( ptr, 0, MEM_RELEASE );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* DPMI_xrealloc
|
|
*
|
|
* FIXME: perhaps we could grow this mapped area...
|
|
*/
|
|
static LPVOID DPMI_xrealloc( LPVOID ptr, DWORD newsize )
|
|
{
|
|
MEMORY_BASIC_INFORMATION mbi;
|
|
|
|
if (ptr)
|
|
{
|
|
LPVOID newptr;
|
|
|
|
if (!VirtualQuery(ptr,&mbi,sizeof(mbi)))
|
|
{
|
|
FIXME( "realloc of DPMI_xallocd region %p?\n", ptr );
|
|
return NULL;
|
|
}
|
|
|
|
if (mbi.State == MEM_FREE)
|
|
{
|
|
FIXME( "realloc of DPMI_xallocd region %p?\n", ptr );
|
|
return NULL;
|
|
}
|
|
|
|
/* We do not shrink allocated memory. most reallocs
|
|
* only do grows anyway
|
|
*/
|
|
if (newsize <= mbi.RegionSize)
|
|
return ptr;
|
|
|
|
newptr = DPMI_xalloc( newsize );
|
|
if (!newptr)
|
|
return NULL;
|
|
|
|
memcpy( newptr, ptr, mbi.RegionSize );
|
|
DPMI_xfree( ptr );
|
|
|
|
return newptr;
|
|
}
|
|
|
|
return DPMI_xalloc( newsize );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* DOSVM_Int31Handler
|
|
*
|
|
* Handler for int 31h (DPMI).
|
|
*/
|
|
void WINAPI DOSVM_Int31Handler( CONTEXT *context )
|
|
{
|
|
RESET_CFLAG(context);
|
|
switch(AX_reg(context))
|
|
{
|
|
case 0x0000: /* Allocate LDT descriptors */
|
|
TRACE( "allocate LDT descriptors (%d)\n", CX_reg(context) );
|
|
{
|
|
WORD sel = AllocSelectorArray16( CX_reg(context) );
|
|
if(!sel)
|
|
{
|
|
TRACE( "failed\n" );
|
|
SET_AX( context, 0x8011 ); /* descriptor unavailable */
|
|
SET_CFLAG( context );
|
|
}
|
|
else
|
|
{
|
|
TRACE( "success, array starts at 0x%04x\n", sel );
|
|
SET_AX( context, sel );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x0001: /* Free LDT descriptor */
|
|
TRACE( "free LDT descriptor (0x%04x)\n", BX_reg(context) );
|
|
if (FreeSelector16( BX_reg(context) ))
|
|
{
|
|
SET_AX( context, 0x8022 ); /* invalid selector */
|
|
SET_CFLAG( context );
|
|
}
|
|
else
|
|
{
|
|
/* If a segment register contains the selector being freed, */
|
|
/* set it to zero. */
|
|
if (!((context->SegDs^BX_reg(context)) & ~3)) context->SegDs = 0;
|
|
if (!((context->SegEs^BX_reg(context)) & ~3)) context->SegEs = 0;
|
|
if (!((context->SegFs^BX_reg(context)) & ~3)) context->SegFs = 0;
|
|
if (!((context->SegGs^BX_reg(context)) & ~3)) context->SegGs = 0;
|
|
}
|
|
break;
|
|
|
|
case 0x0002: /* Real mode segment to descriptor */
|
|
TRACE( "real mode segment to descriptor (0x%04x)\n", BX_reg(context) );
|
|
{
|
|
WORD entryPoint = 0; /* KERNEL entry point for descriptor */
|
|
switch(BX_reg(context))
|
|
{
|
|
case 0x0000: entryPoint = 183; break; /* __0000H */
|
|
case 0x0040: entryPoint = 193; break; /* __0040H */
|
|
case 0xa000: entryPoint = 174; break; /* __A000H */
|
|
case 0xb000: entryPoint = 181; break; /* __B000H */
|
|
case 0xb800: entryPoint = 182; break; /* __B800H */
|
|
case 0xc000: entryPoint = 195; break; /* __C000H */
|
|
case 0xd000: entryPoint = 179; break; /* __D000H */
|
|
case 0xe000: entryPoint = 190; break; /* __E000H */
|
|
case 0xf000: entryPoint = 194; break; /* __F000H */
|
|
default:
|
|
FIXME("Real mode segment (%x) to descriptor: no longer supported\n",
|
|
BX_reg(context));
|
|
SET_CFLAG( context );
|
|
break;
|
|
}
|
|
if (entryPoint)
|
|
{
|
|
FARPROC16 proc = GetProcAddress16( GetModuleHandle16( "KERNEL" ),
|
|
(LPCSTR)(ULONG_PTR)entryPoint );
|
|
SET_AX( context, LOWORD(proc) );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x0003: /* Get next selector increment */
|
|
TRACE("get selector increment (__AHINCR)\n");
|
|
context->Eax = __AHINCR;
|
|
break;
|
|
|
|
case 0x0004: /* Lock selector (not supported) */
|
|
FIXME("lock selector not supported\n");
|
|
context->Eax = 0; /* FIXME: is this a correct return value? */
|
|
break;
|
|
|
|
case 0x0005: /* Unlock selector (not supported) */
|
|
FIXME("unlock selector not supported\n");
|
|
context->Eax = 0; /* FIXME: is this a correct return value? */
|
|
break;
|
|
|
|
case 0x0006: /* Get selector base address */
|
|
TRACE( "get selector base address (0x%04x)\n", BX_reg(context) );
|
|
if (!ldt_is_valid( BX_reg(context) ))
|
|
{
|
|
context->Eax = 0x8022; /* invalid selector */
|
|
SET_CFLAG(context);
|
|
}
|
|
else
|
|
{
|
|
void *base = ldt_get_base( BX_reg(context) );
|
|
SET_CX( context, HIWORD(base) );
|
|
SET_DX( context, LOWORD(base) );
|
|
}
|
|
break;
|
|
|
|
case 0x0007: /* Set selector base address */
|
|
{
|
|
DWORD base = MAKELONG( DX_reg(context), CX_reg(context) );
|
|
WORD sel = BX_reg(context);
|
|
TRACE( "set selector base address (0x%04x,0x%08x)\n", sel, base );
|
|
|
|
/* check if Win16 app wants to access lower 64K of DOS memory */
|
|
if (base < 0x10000) DOSMEM_MapDosLayout();
|
|
|
|
SetSelectorBase( sel, base );
|
|
}
|
|
break;
|
|
|
|
case 0x0008: /* Set selector limit */
|
|
{
|
|
DWORD limit = MAKELONG( DX_reg(context), CX_reg(context) );
|
|
TRACE( "set selector limit (0x%04x,0x%08x)\n",
|
|
BX_reg(context), limit );
|
|
SetSelectorLimit16( BX_reg(context), limit );
|
|
}
|
|
break;
|
|
|
|
case 0x0009: /* Set selector access rights */
|
|
TRACE( "set selector access rights(0x%04x,0x%04x)\n",
|
|
BX_reg(context), CX_reg(context) );
|
|
SelectorAccessRights16( BX_reg(context), 1, CX_reg(context) );
|
|
break;
|
|
|
|
case 0x000a: /* Allocate selector alias */
|
|
TRACE( "allocate selector alias (0x%04x)\n", BX_reg(context) );
|
|
SET_AX( context, AllocCStoDSAlias16( BX_reg(context) ) );
|
|
if (!AX_reg(context))
|
|
{
|
|
SET_AX( context, 0x8011 ); /* descriptor unavailable */
|
|
SET_CFLAG(context);
|
|
}
|
|
break;
|
|
|
|
case 0x000b: /* Get descriptor */
|
|
TRACE( "get descriptor (0x%04x)\n", BX_reg(context) );
|
|
{
|
|
LDT_ENTRY *entry = CTX_SEG_OFF_TO_LIN( context, context->SegEs,
|
|
context->Edi );
|
|
ldt_get_entry( BX_reg(context), entry );
|
|
}
|
|
break;
|
|
|
|
case 0x000c: /* Set descriptor */
|
|
TRACE( "set descriptor (0x%04x)\n", BX_reg(context) );
|
|
{
|
|
LDT_ENTRY *entry = CTX_SEG_OFF_TO_LIN( context, context->SegEs,
|
|
context->Edi );
|
|
if (!ldt_is_system( BX_reg(context) )) ldt_set_entry( BX_reg(context), *entry );
|
|
}
|
|
break;
|
|
|
|
case 0x000d: /* Allocate specific LDT descriptor */
|
|
FIXME( "allocate descriptor (0x%04x), stub!\n", BX_reg(context) );
|
|
SET_AX( context, 0x8011 ); /* descriptor unavailable */
|
|
SET_CFLAG( context );
|
|
break;
|
|
|
|
case 0x000e: /* Get Multiple Descriptors (1.0) */
|
|
FIXME( "get multiple descriptors - unimplemented\n" );
|
|
break;
|
|
|
|
case 0x000f: /* Set Multiple Descriptors (1.0) */
|
|
FIXME( "set multiple descriptors - unimplemented\n" );
|
|
break;
|
|
|
|
case 0x0100: /* Allocate DOS memory block */
|
|
TRACE( "allocate DOS memory block (0x%x paragraphs)\n", BX_reg(context) );
|
|
{
|
|
DWORD dw = GlobalDOSAlloc16( (DWORD)BX_reg(context) << 4 );
|
|
if (dw) {
|
|
SET_AX( context, HIWORD(dw) );
|
|
SET_DX( context, LOWORD(dw) );
|
|
} else {
|
|
SET_AX( context, 0x0008 ); /* insufficient memory */
|
|
SET_BX( context, DOSMEM_Available() >> 4 );
|
|
SET_CFLAG(context);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 0x0101: /* Free DOS memory block */
|
|
TRACE( "free DOS memory block (0x%04x)\n", DX_reg(context) );
|
|
{
|
|
WORD error = GlobalDOSFree16( DX_reg(context) );
|
|
if (error) {
|
|
SET_AX( context, 0x0009 ); /* memory block address invalid */
|
|
SET_CFLAG( context );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x0102: /* Resize DOS Memory Block */
|
|
FIXME( "resize DOS memory block (0x%04x, 0x%x paragraphs) - unimplemented\n",
|
|
DX_reg(context), BX_reg(context) );
|
|
break;
|
|
|
|
case 0x0200: /* get real mode interrupt vector */
|
|
TRACE( "get realmode interrupt vector (0x%02x) - not supported\n",
|
|
BL_reg(context) );
|
|
SET_CX( context, 0 );
|
|
SET_DX( context, 0 );
|
|
break;
|
|
|
|
case 0x0201: /* set real mode interrupt vector */
|
|
TRACE( "set realmode interrupt vector (0x%02x, 0x%04x:0x%04x) - not supported\n",
|
|
BL_reg(context), CX_reg(context), DX_reg(context) );
|
|
break;
|
|
|
|
case 0x0202: /* Get Processor Exception Handler Vector */
|
|
FIXME( "Get Processor Exception Handler Vector (0x%02x)\n",
|
|
BL_reg(context) );
|
|
SET_CX( context, 0 );
|
|
SET_DX( context, 0 );
|
|
break;
|
|
|
|
case 0x0203: /* Set Processor Exception Handler Vector */
|
|
FIXME( "Set Processor Exception Handler Vector (0x%02x)\n",
|
|
BL_reg(context) );
|
|
break;
|
|
|
|
case 0x0204: /* Get protected mode interrupt vector */
|
|
TRACE("get protected mode interrupt handler (0x%02x)\n",
|
|
BL_reg(context));
|
|
{
|
|
FARPROC16 handler = DOSVM_GetPMHandler16( BL_reg(context) );
|
|
SET_CX( context, SELECTOROF(handler) );
|
|
SET_DX( context, OFFSETOF(handler) );
|
|
}
|
|
break;
|
|
|
|
case 0x0205: /* Set protected mode interrupt vector */
|
|
TRACE("set protected mode interrupt handler (0x%02x,0x%04x:0x%08x)\n",
|
|
BL_reg(context), CX_reg(context), context->Edx);
|
|
{
|
|
FARPROC16 handler;
|
|
handler = (FARPROC16)MAKESEGPTR( CX_reg(context), DX_reg(context));
|
|
DOSVM_SetPMHandler16( BL_reg(context), handler );
|
|
}
|
|
break;
|
|
|
|
case 0x0300: /* Simulate real mode interrupt */
|
|
TRACE( "Simulate real mode interrupt %02x - not supported\n", BL_reg(context));
|
|
break;
|
|
|
|
case 0x0301: /* Call real mode procedure with far return */
|
|
TRACE( "Call real mode procedure with far return - not supported\n" );
|
|
break;
|
|
|
|
case 0x0302: /* Call real mode procedure with interrupt return */
|
|
TRACE( "Call real mode procedure with interrupt return - not supported\n" );
|
|
break;
|
|
|
|
case 0x0303: /* Allocate Real Mode Callback Address */
|
|
TRACE( "Allocate real mode callback address - not supported\n" );
|
|
break;
|
|
|
|
case 0x0304: /* Free Real Mode Callback Address */
|
|
TRACE( "Free real mode callback address - not supported\n" );
|
|
break;
|
|
|
|
case 0x0305: /* Get State Save/Restore Addresses */
|
|
TRACE("get state save/restore addresses - no longer supported\n");
|
|
/* we probably won't need this kind of state saving */
|
|
SET_AX( context, 0 );
|
|
/* real mode */
|
|
SET_BX( context, 0 );
|
|
SET_CX( context, 0 );
|
|
/* protected mode */
|
|
SET_SI( context, 0 );
|
|
context->Edi = 0;
|
|
break;
|
|
|
|
case 0x0306: /* Get Raw Mode Switch Addresses */
|
|
TRACE("get raw mode switch addresses - no longer supported\n");
|
|
/* real mode */
|
|
SET_BX( context, 0 );
|
|
SET_CX( context, 0 );
|
|
/* protected mode */
|
|
SET_SI( context, 0 );
|
|
context->Edi = 0;
|
|
break;
|
|
|
|
case 0x0400: /* Get DPMI version */
|
|
TRACE("get DPMI version\n");
|
|
{
|
|
SYSTEM_INFO si;
|
|
|
|
GetSystemInfo(&si);
|
|
SET_AX( context, 0x005a ); /* DPMI version 0.90 */
|
|
SET_BX( context, 0x0005 ); /* Flags: 32-bit, virtual memory */
|
|
SET_CL( context, si.wProcessorLevel );
|
|
SET_DX( context, 0x0870 ); /* Master/slave interrupt controller base */
|
|
}
|
|
break;
|
|
|
|
case 0x0401: /* Get DPMI Capabilities (1.0) */
|
|
FIXME( "get dpmi capabilities - unimplemented\n");
|
|
break;
|
|
|
|
case 0x0500: /* Get free memory information */
|
|
TRACE("get free memory information\n");
|
|
{
|
|
MEMORYSTATUS status;
|
|
SYSTEM_BASIC_INFORMATION sbi;
|
|
|
|
/* the layout is just the same as MEMMANINFO, but without
|
|
* the dwSize entry.
|
|
*/
|
|
struct
|
|
{
|
|
DWORD dwLargestFreeBlock;
|
|
DWORD dwMaxPagesAvailable;
|
|
DWORD dwMaxPagesLockable;
|
|
DWORD dwTotalLinearSpace;
|
|
DWORD dwTotalUnlockedPages;
|
|
DWORD dwFreePages;
|
|
DWORD dwTotalPages;
|
|
DWORD dwFreeLinearSpace;
|
|
DWORD dwSwapFilePages;
|
|
WORD wPageSize;
|
|
} *info = CTX_SEG_OFF_TO_LIN( context, context->SegEs, context->Edi );
|
|
|
|
GlobalMemoryStatus( &status );
|
|
NtQuerySystemInformation( SystemBasicInformation, &sbi, sizeof(sbi), NULL );
|
|
|
|
info->wPageSize = sbi.PageSize;
|
|
info->dwLargestFreeBlock = status.dwAvailVirtual;
|
|
info->dwMaxPagesAvailable = info->dwLargestFreeBlock / info->wPageSize;
|
|
info->dwMaxPagesLockable = info->dwMaxPagesAvailable;
|
|
info->dwTotalLinearSpace = status.dwTotalVirtual / info->wPageSize;
|
|
info->dwTotalUnlockedPages = info->dwTotalLinearSpace;
|
|
info->dwFreePages = info->dwMaxPagesAvailable;
|
|
info->dwTotalPages = info->dwTotalLinearSpace;
|
|
info->dwFreeLinearSpace = info->dwMaxPagesAvailable;
|
|
info->dwSwapFilePages = status.dwTotalPageFile / info->wPageSize;
|
|
break;
|
|
}
|
|
|
|
case 0x0501: /* Allocate memory block */
|
|
{
|
|
DWORD size = MAKELONG( CX_reg(context), BX_reg(context) );
|
|
BYTE *ptr;
|
|
|
|
TRACE( "allocate memory block (%u bytes)\n", size );
|
|
|
|
ptr = DPMI_xalloc( size );
|
|
if (!ptr)
|
|
{
|
|
SET_AX( context, 0x8012 ); /* linear memory not available */
|
|
SET_CFLAG(context);
|
|
}
|
|
else
|
|
{
|
|
SET_BX( context, HIWORD(ptr) );
|
|
SET_CX( context, LOWORD(ptr) );
|
|
SET_SI( context, HIWORD(ptr) );
|
|
SET_DI( context, LOWORD(ptr) );
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 0x0502: /* Free memory block */
|
|
{
|
|
DWORD handle = MAKELONG( DI_reg(context), SI_reg(context) );
|
|
TRACE( "free memory block (0x%08x)\n", handle );
|
|
DPMI_xfree( (void *)handle );
|
|
}
|
|
break;
|
|
|
|
case 0x0503: /* Resize memory block */
|
|
{
|
|
DWORD size = MAKELONG( CX_reg(context), BX_reg(context) );
|
|
DWORD handle = MAKELONG( DI_reg(context), SI_reg(context) );
|
|
BYTE *ptr;
|
|
|
|
TRACE( "resize memory block (0x%08x, %u bytes)\n", handle, size );
|
|
|
|
ptr = DPMI_xrealloc( (void *)handle, size );
|
|
if (!ptr)
|
|
{
|
|
SET_AX( context, 0x8012 ); /* linear memory not available */
|
|
SET_CFLAG(context);
|
|
} else {
|
|
SET_BX( context, HIWORD(ptr) );
|
|
SET_CX( context, LOWORD(ptr) );
|
|
SET_SI( context, HIWORD(ptr) );
|
|
SET_DI( context, LOWORD(ptr) );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x0507: /* Set page attributes (1.0) */
|
|
FIXME( "set page attributes - unimplemented\n" );
|
|
break; /* Just ignore it */
|
|
|
|
case 0x0600: /* Lock linear region */
|
|
TRACE( "lock linear region - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0601: /* Unlock linear region */
|
|
TRACE( "unlock linear region - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0602: /* Mark real mode region as pageable */
|
|
TRACE( "mark real mode region as pageable - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0603: /* Relock real mode region */
|
|
TRACE( "relock real mode region - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0604: /* Get page size */
|
|
{
|
|
SYSTEM_BASIC_INFORMATION info;
|
|
TRACE("get pagesize\n");
|
|
NtQuerySystemInformation( SystemBasicInformation, &info, sizeof(info), NULL );
|
|
SET_BX( context, HIWORD(info.PageSize) );
|
|
SET_CX( context, LOWORD(info.PageSize) );
|
|
break;
|
|
}
|
|
case 0x0700: /* Mark pages as paging candidates */
|
|
TRACE( "mark pages as paging candidates - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0701: /* Discard pages */
|
|
TRACE( "discard pages - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0702: /* Mark page as demand-paging candidate */
|
|
TRACE( "mark page as demand-paging candidate - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0703: /* Discard page contents */
|
|
TRACE( "discard page contents - ignored (no paging)\n" );
|
|
break;
|
|
|
|
case 0x0800: /* Physical address mapping */
|
|
FIXME( "physical address mapping (0x%08x) - unimplemented\n",
|
|
MAKELONG(CX_reg(context),BX_reg(context)) );
|
|
break;
|
|
|
|
case 0x0900: /* Get and Disable Virtual Interrupt State */
|
|
TRACE( "Get and Disable Virtual Interrupt State - not supported\n" );
|
|
break;
|
|
|
|
case 0x0901: /* Get and Enable Virtual Interrupt State */
|
|
TRACE( "Get and Enable Virtual Interrupt State - not supported\n" );
|
|
break;
|
|
|
|
case 0x0902: /* Get Virtual Interrupt State */
|
|
TRACE( "Get Virtual Interrupt State - not supported\n" );
|
|
break;
|
|
|
|
case 0x0e00: /* Get Coprocessor Status (1.0) */
|
|
/*
|
|
* Return status in AX bits:
|
|
* B0 - MPv (MP bit in the virtual MSW/CR0)
|
|
* 0 = numeric coprocessor is disabled for this client
|
|
* 1 = numeric coprocessor is enabled for this client
|
|
* B1 - EMv (EM bit in the virtual MSW/CR0)
|
|
* 0 = client is not emulating coprocessor instructions
|
|
* 1 = client is emulating coprocessor instructions
|
|
* B2 - MPr (MP bit from the actual MSW/CR0)
|
|
* 0 = numeric coprocessor is not present
|
|
* 1 = numeric coprocessor is present
|
|
* B3 - EMr (EM bit from the actual MSW/CR0)
|
|
* 0 = host is not emulating coprocessor instructions
|
|
* 1 = host is emulating coprocessor instructions
|
|
* B4-B7 - coprocessor type
|
|
* 00H = no coprocessor
|
|
* 02H = 80287
|
|
* 03H = 80387
|
|
* 04H = 80486 with numeric coprocessor
|
|
* 05H-0FH = reserved for future numeric processors
|
|
*/
|
|
TRACE( "Get Coprocessor Status\n" );
|
|
SET_AX( context, 69 ); /* 486, coprocessor present and enabled */
|
|
break;
|
|
|
|
case 0x0e01: /* Set Coprocessor Emulation (1.0) */
|
|
/*
|
|
* See function 0x0e00.
|
|
* BX bit B0 is new value for MPv.
|
|
* BX bit B1 is new value for EMv.
|
|
*/
|
|
if (BX_reg(context) != 1)
|
|
FIXME( "Set Coprocessor Emulation to %d - unimplemented\n",
|
|
BX_reg(context) );
|
|
else
|
|
TRACE( "Set Coprocessor Emulation - ignored\n" );
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( context, 0x31 );
|
|
SET_AX( context, 0x8001 ); /* unsupported function */
|
|
SET_CFLAG(context);
|
|
break;
|
|
}
|
|
}
|