wine/msdos/dpmi.c
Alexandre Julliard 54c2711ff6 Release 980329
Sun Mar 29 15:18:57 1998  Uwe Bonnes <elektron.ikp.physik.tu-darmstadt.de>

	* [msdos/int21.c]
	More verbose Trace messages

Sun Mar 29 15:03:30 1998  Alexandre Julliard  <julliard@lrc.epfl.ch>

	* [loader/ne_image.c]
	Terminate relocation chains on 0 offset.

Sun Mar 29 02:35:45 1998  James Juran  <jrj120@psu.edu>

	* [windows/caret.c] [windows/class.c] [windows/clipboard.c]
	Fixed more USER32 ordinal numbers in function documentation.

Sat Mar 28 22:40:23 1997  Andreas Mohr <100.30936@germany.net>

	* [controls/desktop.c]
	Return 1 for WM_NCCREATE in DesktopWndProc.

	* [controls/menu.c]
	Fixed crash when destroying a top popup win that was only created
	but not shown.

	* [ole/typelib.c] [if1632/typelib.spec]
	Implemented OABuildVersion.

	* [windows/win.c]
	Finally fixed ugly bug in GetParent32 that affected window placement:
	Didn't return 0 for windows that have neither WS_POPUP nor
	WS_CHILD set. Now it acts exactly like Windows (at least I hope so ;)

Sat Mar 28 02:26:43 1998  Dimitrie O. Paun  <dimi@mail.cs.toronto.edu>

	* [DEVELOPERS-HINTS] [documentation/debug-msgs]
	Updated documentation on debug messages

	* [include/button.h] [controls/button.c] [include/windows.h]
	[include/combo.h] [controls/combo.c] [controls/commctrl.c]
	[controls/icontitle.c] [controls/listbox.c]	[controls/menu.c]
	[controls/scroll.c] [controls/widgets.c] 
	Changed some 16-bit code to 32-bit code. I am positive this will
	not break anything.

	* [controls/uitools.c] 
	Renamed the prefix of some functions from UITOOLS_ to UITOOLS95_
	to reflect the fact that they implement Win95 look. Maybe we will
	have a UITOOLS31_ in the future. Anyhow, the change is completely
	internal to this file.

	* [*/*.c]
	Changed a lot of [f]printf into appropriate debug messages.

Fri Mar 27 19:56:12 1998  Marcus Meissner <msmeissn@cip.informatik.uni-erlangen.de>
	* [documentation/status/]
	Added directdraw and directsound status.

	* [if1632/thunk.c][ole/*.c][win32/kernel32.c]
	Added some documentation.
	Moved FUNC004 to thunk.c since it seems to be a 16->32 thunk
	(calling conventions and the like still unknown).

Fri Mar 27 09:59:32 1998  Morten Eriksen  <mortene@pvv.org>

	* [loader/resource.c][windows/keyboard.c]
	Implemented CopyAcceleratorTable() and CreateAcceleratorTable().
	
	* [include/compobj.h][ole/compobj.c][relay32/ole32.spec]
	Added implementation of StringFromGUID2(). 

Tue Mar 26 23:12:05 1998  Eric Kohl <ekohl@abo.rhein-zeitung.de>

	* [misc/imagelist.c][relay32/comctl32.spec]
	Implemented new debugging interface.
	Added missing functions (some are empty stubs).
	Changed ordinals in comctl32.spec (now dll version 4.72 comatible).

	* [objects/oembitmaps.c][include/windows.h]
	  [include/bitmaps/*]
	Added missing restore bitmaps for Win95 look.
	Added missing Win95 cursors.

Thu Mar 26 10:18:20 1998  Douglas Ridgway  <ridgway@winehq.com>

	* [programs/view/Makefile.in] [programs/view/view.c]
	Fix compilation, Aldus placeable metafile loading.

	* [graphics/metafiledrv/init.c] [relay32/gdi32.spec] 
	  [objects/metafile.c]
	Implemented various 32 bit versions of regular metafile API.

	* [objects/enhmetafile.c]
	Implemented rendering of a couple of dozen records.

Tue Mar 24 20:06:39 1998  Matthew Becker <mbecker@glasscity.net>

	* [memory/*.c]
	Updated documentation for API manpages.

Mon Mar 23 09:09:00 1998  Alex Korobka <alex@pharm.sunysb.edu>

	* [misc/winsock.c]
	Fixed 32-bit DNS lookup.

Mon Mar 23 23:54:47 1998  Luiz Otavio L. Zorzella  <zorzella@nr.conexware.com>

	* [multimedia/init.c]
	New code for the initialization and gathering of information about
	the MIDI devices, for future use.

Thu Mar 19 00:59:29 1998  Jim Peterson <jspeter@nospam.birch.ee.vt.edu>

	* [windows/win.c]
	Eliminated inaccurate setting of cs->hMenu in
	WIN_CreateWindowEx, along with superfluous SetMenu32 call.

Mon Mar 16 17:40:53 1998  Petter Reinholdtsen <pere@td.org.uit.no>

	* [debugger/dbg.y] [debugger/Makefile.in] [Makefile.in]
	Install wine.sym in $(exec_prefix)/lib and make sure the debugger
	finds it.

Sun Mar 15 22:36:35 1998  Michael Veksler <mveksler@tx.technion.ac.il>

	* [dummy.c] [if1632/gdi.spec]
	Fixed stub declaration of GDI_532, so Hebrew-Word2 kind of works.
1998-03-29 19:44:57 +00:00

523 lines
17 KiB
C

/*
* DPMI 0.9 emulation
*
* Copyright 1995 Alexandre Julliard
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "windows.h"
#include "heap.h"
#include "ldt.h"
#include "module.h"
#include "miscemu.h"
#include "drive.h"
#include "msdos.h"
#include "toolhelp.h"
#include "debug.h"
#define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
void CreateBPB(int drive, BYTE *data); /* defined in int21.c */
/* Structure for real-mode callbacks */
typedef struct
{
DWORD edi;
DWORD esi;
DWORD ebp;
DWORD reserved;
DWORD ebx;
DWORD edx;
DWORD ecx;
DWORD eax;
WORD fl;
WORD es;
WORD ds;
WORD fs;
WORD gs;
WORD ip;
WORD cs;
WORD sp;
WORD ss;
} REALMODECALL;
/**********************************************************************
* INT_GetRealModeContext
*/
static void INT_GetRealModeContext( REALMODECALL *call, CONTEXT *context )
{
EAX_reg(context) = call->eax;
EBX_reg(context) = call->ebx;
ECX_reg(context) = call->ecx;
EDX_reg(context) = call->edx;
ESI_reg(context) = call->esi;
EDI_reg(context) = call->edi;
EBP_reg(context) = call->ebp;
EFL_reg(context) = call->fl;
EIP_reg(context) = call->ip;
ESP_reg(context) = call->sp;
CS_reg(context) = call->cs;
DS_reg(context) = call->ds;
ES_reg(context) = call->es;
FS_reg(context) = call->fs;
GS_reg(context) = call->gs;
}
/**********************************************************************
* INT_SetRealModeContext
*/
static void INT_SetRealModeContext( REALMODECALL *call, CONTEXT *context )
{
call->eax = EAX_reg(context);
call->ebx = EBX_reg(context);
call->ecx = ECX_reg(context);
call->edx = EDX_reg(context);
call->esi = ESI_reg(context);
call->edi = EDI_reg(context);
call->ebp = EBP_reg(context);
call->fl = FL_reg(context);
call->ip = IP_reg(context);
call->sp = SP_reg(context);
call->cs = CS_reg(context);
call->ds = DS_reg(context);
call->es = ES_reg(context);
call->fs = FS_reg(context);
call->gs = GS_reg(context);
}
/**********************************************************************
* INT_DoRealModeInt
*/
static void INT_DoRealModeInt( CONTEXT *context )
{
CONTEXT realmode_ctx;
REALMODECALL *call = (REALMODECALL *)PTR_SEG_OFF_TO_LIN( ES_reg(context),
DI_reg(context) );
INT_GetRealModeContext( call, &realmode_ctx );
RESET_CFLAG(context);
switch (BL_reg(context))
{
case 0x2f: /* int2f */
switch (AH_reg(&realmode_ctx))
{
case 0x15:
/* MSCDEX hook */
do_mscdex( &realmode_ctx );
break;
default:
SET_CFLAG(context);
break;
}
break;
case 0x21: /* int21 */
switch (AH_reg(&realmode_ctx))
{
case 0x52:
ES_reg(&realmode_ctx) = 0;
EBX_reg(&realmode_ctx) = 0;
break;
case 0x65:
switch (AL_reg(&realmode_ctx))
{
case 0x06:
{/* get collate table */
/* ES:DI is a REALMODE pointer to 5 byte dosmem
* we fill that with 0x6, realmode pointer to collateTB
*/
char *table = DOSMEM_MapRealToLinear(
MAKELONG(EDI_reg(&realmode_ctx),ES_reg(&realmode_ctx)));
*(BYTE*)table = 0x06;
*(DWORD*)(table+1) = DOSMEM_CollateTable;
CX_reg(&realmode_ctx) = 258;/*FIXME: size of table?*/
break;
}
default:
SET_CFLAG(context);
break;
}
break;
case 0x44:
switch (AL_reg(&realmode_ctx))
{
case 0x0D:
{/* generic block device request */
BYTE *dataptr = DOSMEM_MapRealToLinear(
MAKELONG(EDX_reg(&realmode_ctx),DS_reg(&realmode_ctx)));
int drive = DOS_GET_DRIVE(BL_reg(&realmode_ctx));
if (CH_reg(&realmode_ctx) != 0x08)
{
SET_CFLAG(context);
break;
}
switch (CL_reg(&realmode_ctx))
{
case 0x66:
{
char label[12],fsname[9],path[4];
DWORD serial;
strcpy(path,"x:\\");path[0]=drive+'A';
GetVolumeInformation32A(path,label,12,&serial,NULL,NULL,fsname,9);
*(WORD*)dataptr = 0;
memcpy(dataptr+2,&serial,4);
memcpy(dataptr+6,label ,11);
memcpy(dataptr+17,fsname,8);
break;
}
case 0x60: /* get device parameters */
/* used by defrag.exe of win95 */
memset(dataptr, 0, 0x26);
dataptr[0] = 0x04;
dataptr[6] = 0; /* media type */
if (drive > 1)
{
dataptr[1] = 0x05; /* fixed disk */
setword(&dataptr[2], 0x01); /* non removable */
setword(&dataptr[4], 0x300); /* # of cylinders */
}
else
{
dataptr[1] = 0x07; /* block dev, floppy */
setword(&dataptr[2], 0x02); /* removable */
setword(&dataptr[4], 80); /* # of cylinders */
}
CreateBPB(drive, &dataptr[7]);
break;
default:
SET_CFLAG(context);
break;
}
}
break;
default:
SET_CFLAG(context);
break;
}
break;
default:
SET_CFLAG(context);
break;
}
break;
default:
SET_CFLAG(context);
break;
}
if (EFL_reg(context)&1)
FIXME(int31,"%02x: EAX=%08lx EBX=%08lx ECX=%08lx EDX=%08lx\n",
BL_reg(context), EAX_reg(&realmode_ctx), EBX_reg(&realmode_ctx),
ECX_reg(&realmode_ctx), EDX_reg(&realmode_ctx));
FIXME(int31," ESI=%08lx EDI=%08lx DS=%04lx ES=%04lx\n",
ESI_reg(&realmode_ctx), EDI_reg(&realmode_ctx),
DS_reg(&realmode_ctx), ES_reg(&realmode_ctx) );
INT_SetRealModeContext( call, &realmode_ctx );
}
/**********************************************************************
* INT_Int31Handler
*
* Handler for int 31h (DPMI).
*/
void WINAPI INT_Int31Handler( CONTEXT *context )
{
DWORD dw;
BYTE *ptr;
RESET_CFLAG(context);
switch(AX_reg(context))
{
case 0x0000: /* Allocate LDT descriptors */
if (!(AX_reg(context) = AllocSelectorArray( CX_reg(context) )))
{
AX_reg(context) = 0x8011; /* descriptor unavailable */
SET_CFLAG(context);
}
break;
case 0x0001: /* Free LDT descriptor */
if (FreeSelector( BX_reg(context) ))
{
AX_reg(context) = 0x8022; /* invalid selector */
SET_CFLAG(context);
}
else
{
/* If a segment register contains the selector being freed, */
/* set it to zero. */
if (!((DS_reg(context)^BX_reg(context)) & ~3)) DS_reg(context) = 0;
if (!((ES_reg(context)^BX_reg(context)) & ~3)) ES_reg(context) = 0;
if (!((FS_reg(context)^BX_reg(context)) & ~3)) FS_reg(context) = 0;
if (!((GS_reg(context)^BX_reg(context)) & ~3)) GS_reg(context) = 0;
}
break;
case 0x0002: /* Real mode segment to descriptor */
{
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:
AX_reg(context) = DOSMEM_AllocSelector(BX_reg(context));
break;
}
if (entryPoint)
AX_reg(context) = LOWORD(MODULE_GetEntryPoint(
GetModuleHandle16( "KERNEL" ),
entryPoint ));
}
break;
case 0x0003: /* Get next selector increment */
AX_reg(context) = __AHINCR;
break;
case 0x0004: /* Lock selector (not supported) */
AX_reg(context) = 0; /* FIXME: is this a correct return value? */
break;
case 0x0005: /* Unlock selector (not supported) */
AX_reg(context) = 0; /* FIXME: is this a correct return value? */
break;
case 0x0006: /* Get selector base address */
if (!(dw = GetSelectorBase( BX_reg(context) )))
{
AX_reg(context) = 0x8022; /* invalid selector */
SET_CFLAG(context);
}
else
{
CX_reg(context) = HIWORD(dw);
DX_reg(context) = LOWORD(dw);
}
break;
case 0x0007: /* Set selector base address */
SetSelectorBase( BX_reg(context),
MAKELONG( DX_reg(context), CX_reg(context) ) );
break;
case 0x0008: /* Set selector limit */
SetSelectorLimit( BX_reg(context),
MAKELONG( DX_reg(context), CX_reg(context) ) );
break;
case 0x0009: /* Set selector access rights */
SelectorAccessRights( BX_reg(context), 1, CX_reg(context) );
break;
case 0x000a: /* Allocate selector alias */
if (!(AX_reg(context) = AllocCStoDSAlias( BX_reg(context) )))
{
AX_reg(context) = 0x8011; /* descriptor unavailable */
SET_CFLAG(context);
}
break;
case 0x000b: /* Get descriptor */
{
ldt_entry entry;
LDT_GetEntry( SELECTOR_TO_ENTRY( BX_reg(context) ), &entry );
/* FIXME: should use ES:EDI for 32-bit clients */
LDT_EntryToBytes( PTR_SEG_OFF_TO_LIN( ES_reg(context),
DI_reg(context) ), &entry );
}
break;
case 0x000c: /* Set descriptor */
{
ldt_entry entry;
LDT_BytesToEntry( PTR_SEG_OFF_TO_LIN( ES_reg(context),
DI_reg(context) ), &entry );
LDT_SetEntry( SELECTOR_TO_ENTRY( BX_reg(context) ), &entry );
}
break;
case 0x000d: /* Allocate specific LDT descriptor */
AX_reg(context) = 0x8011; /* descriptor unavailable */
SET_CFLAG(context);
break;
case 0x0200: /* get real mode interrupt vector */
FIXME(int31,"get realmode interupt vector(0x%02x) unimplemented.\n",
BL_reg(context));
SET_CFLAG(context);
break;
case 0x0201: /* set real mode interrupt vector */
FIXME(int31, "set realmode interupt vector(0x%02x,0x%04x:0x%04x) unimplemented\n", BL_reg(context),CX_reg(context),DX_reg(context));
SET_CFLAG(context);
break;
case 0x0204: /* Get protected mode interrupt vector */
dw = (DWORD)INT_GetHandler( BL_reg(context) );
CX_reg(context) = HIWORD(dw);
DX_reg(context) = LOWORD(dw);
break;
case 0x0205: /* Set protected mode interrupt vector */
INT_SetHandler( BL_reg(context),
(FARPROC16)PTR_SEG_OFF_TO_SEGPTR( CX_reg(context),
DX_reg(context) ));
break;
case 0x0300: /* Simulate real mode interrupt */
INT_DoRealModeInt( context );
break;
case 0x0301: /* Call real mode procedure with far return */
{
REALMODECALL *p = (REALMODECALL *)PTR_SEG_OFF_TO_LIN( ES_reg(context), DI_reg(context) );
FIXME(int31, "RealModeCall: EAX=%08lx EBX=%08lx ECX=%08lx EDX=%08lx\n",
p->eax, p->ebx, p->ecx, p->edx);
FIXME(int31, " ESI=%08lx EDI=%08lx ES=%04x DS=%04x CS:IP=%04x:%04x\n",
p->esi, p->edi, p->es, p->ds, p->cs, p->ip );
SET_CFLAG(context);
}
break;
case 0x0302: /* Call real mode procedure with interrupt return */
{
REALMODECALL *p = (REALMODECALL *)PTR_SEG_OFF_TO_LIN( ES_reg(context), DI_reg(context) );
FIXME(int31, "RealModeCallIret: EAX=%08lx EBX=%08lx ECX=%08lx EDX=%08lx\n", p->eax, p->ebx, p->ecx, p->edx);
FIXME(int31, " ESI=%08lx EDI=%08lx ES=%04x DS=%04x CS:IP=%04x:%04x\n", p->esi, p->edi, p->es, p->ds, p->cs, p->ip );
SET_CFLAG(context);
}
break;
case 0x0303: /* Allocate Real Mode Callback Address */
{
REALMODECALL *p = (REALMODECALL *)PTR_SEG_OFF_TO_LIN( ES_reg(context), DI_reg(context) );
FIXME(int31, "AllocRMCB: EAX=%08lx EBX=%08lx ECX=%08lx EDX=%08lx\n", p->eax, p->ebx, p->ecx, p->edx);
FIXME(int31, " ESI=%08lx EDI=%08lx ES=%04x DS=%04x CS:IP=%04x:%04x\n", p->esi, p->edi, p->es, p->ds, p->cs, p->ip);
FIXME(int31, " Function to call: %04x:%04x\n",
(WORD)DS_reg(context), SI_reg(context) );
SET_CFLAG(context);
}
break;
case 0x0304: /* Free Real Mode Callback Address */
{
FIXME(int31, "FreeRMCB: callback address: %04x:%04x\n",
CX_reg(context), DX_reg(context));
SET_CFLAG(context);
}
break;
case 0x0400: /* Get DPMI version */
{
SYSTEM_INFO si;
GetSystemInfo(&si);
AX_reg(context) = 0x005a; /* DPMI version 0.90 */
BX_reg(context) = 0x0005; /* Flags: 32-bit, virtual memory */
CL_reg(context) = si.wProcessorLevel;
DX_reg(context) = 0x0102; /* Master/slave interrupt controller base*/
break;
}
case 0x0500: /* Get free memory information */
{
MEMMANINFO mmi;
mmi.dwSize = sizeof(mmi);
MemManInfo(&mmi);
ptr = (BYTE *)PTR_SEG_OFF_TO_LIN(ES_reg(context),DI_reg(context));
/* the layout is just the same as MEMMANINFO, but without
* the dwSize entry.
*/
memcpy(ptr,((char*)&mmi)+4,sizeof(mmi)-4);
break;
}
case 0x0501: /* Allocate memory block */
if (!(ptr = (BYTE *)VirtualAlloc(NULL, MAKELONG(CX_reg(context), BX_reg(context)), MEM_COMMIT, PAGE_EXECUTE_READWRITE)))
{
AX_reg(context) = 0x8012; /* linear memory not available */
SET_CFLAG(context);
}
else
{
BX_reg(context) = SI_reg(context) = HIWORD(ptr);
CX_reg(context) = DI_reg(context) = LOWORD(ptr);
}
break;
case 0x0502: /* Free memory block */
VirtualFree((void *)MAKELONG(DI_reg(context), SI_reg(context)), 0, MEM_RELEASE);
break;
case 0x0503: /* Resize memory block */
if (!(ptr = (BYTE *)HeapReAlloc( GetProcessHeap(), 0,
(void *)MAKELONG(DI_reg(context),SI_reg(context)),
MAKELONG(CX_reg(context),BX_reg(context)))))
{
AX_reg(context) = 0x8012; /* linear memory not available */
SET_CFLAG(context);
}
else
{
BX_reg(context) = SI_reg(context) = HIWORD(ptr);
CX_reg(context) = DI_reg(context) = LOWORD(ptr);
}
break;
case 0x0600: /* Lock linear region */
break; /* Just ignore it */
case 0x0601: /* Unlock linear region */
break; /* Just ignore it */
case 0x0602: /* Unlock real-mode region */
break; /* Just ignore it */
case 0x0603: /* Lock real-mode region */
break; /* Just ignore it */
case 0x0604: /* Get page size */
BX_reg(context) = 0;
CX_reg(context) = 4096;
break;
case 0x0702: /* Mark page as demand-paging candidate */
break; /* Just ignore it */
case 0x0703: /* Discard page contents */
break; /* Just ignore it */
case 0x0800: /* Physical address mapping */
if(!(ptr=DOSMEM_MapRealToLinear(MAKELONG(CX_reg(context),BX_reg(context)))))
{
AX_reg(context) = 0x8021;
SET_CFLAG(context);
}
else
{
BX_reg(context) = HIWORD(ptr);
CX_reg(context) = LOWORD(ptr);
RESET_CFLAG(context);
}
break;
default:
INT_BARF( context, 0x31 );
AX_reg(context) = 0x8001; /* unsupported function */
SET_CFLAG(context);
break;
}
}