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krnl386: Remove support for DPMI real-mode calls. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2018-02-05 17:03:48 +01:00
parent 4a5890811d
commit ed6bdb3c51
9 changed files with 56 additions and 1342 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dlls/krnl386.exe16/Makefile.in
View File

@ -7,7 +7,6 @@ EXTRADLLFLAGS = -m16 -nodefaultlibs -Wb,--dll-name,kernel
C_SRCS = \
atom.c \
dma.c \
dosaspi.c \
dosmem.c \
dosvm.c \
error.c \

234
dlls/krnl386.exe16/dosaspi.c
View File

@ -1,234 +0,0 @@
/*
* Copyright 2000 David Elliott
*
* 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 "config.h"
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wine/windef16.h"
#include "wine/winaspi.h"
#include "wine/debug.h"
#include "dosexe.h"
#include "winerror.h"
WINE_DEFAULT_DEBUG_CHANNEL(aspi);
static HINSTANCE hWNASPI32 = INVALID_HANDLE_VALUE;
static DWORD (__cdecl *pSendASPI32Command) (LPSRB) = NULL;
static void
DOSASPI_PostProc( SRB_ExecSCSICmd *lpPRB )
{
DWORD ptrSRB;
LPSRB16 lpSRB16;
memcpy(&ptrSRB,lpPRB->SenseArea + lpPRB->SRB_SenseLen,sizeof(DWORD));
TRACE("Copying data back to DOS client at 0x%8x\n",ptrSRB);
lpSRB16 = PTR_REAL_TO_LIN(SELECTOROF(ptrSRB),OFFSETOF(ptrSRB));
lpSRB16->cmd.SRB_TargStat = lpPRB->SRB_TargStat;
lpSRB16->cmd.SRB_HaStat = lpPRB->SRB_HaStat;
memcpy(lpSRB16->cmd.CDBByte + lpSRB16->cmd.SRB_CDBLen,lpPRB->SenseArea,lpSRB16->cmd.SRB_SenseLen);
/* Now do posting */
if( lpPRB->SRB_Status == SS_SECURITY_VIOLATION )
{
/* SS_SECURITY_VIOLATION isn't defined in DOS ASPI */
TRACE("Returning SS_NO_DEVICE for SS_SECURITY_VIOLATION\n");
lpPRB->SRB_Status = SS_NO_DEVICE;
}
lpSRB16->cmd.SRB_Status = lpPRB->SRB_Status;
TRACE("SRB_Status = 0x%x\n", lpPRB->SRB_Status);
HeapFree(GetProcessHeap(),0,lpPRB);
if( (lpSRB16->cmd.SRB_Flags & SRB_POSTING) && lpSRB16->cmd.SRB_PostProc )
{
CONTEXT ctx;
/* The stack should look like this on entry to proc
* NOTE: the SDK draws the following diagram bass awkwardly, use this one
* to avoid being confused. Remember, the act of pushing something on
* an intel stack involves decreasing the stack pointer by the size of
* the data, and then copying the data at the new SP.
*/
/***************************
* ... Other crap that is already on the stack ...
* Segment of SRB Pointer <- SP+6
* Offset of SRB Pointer <- SP+4
* Segment of return address <- SP+2
* Offset of return address <- SP+0
*/
/* FIXME: I am about 99% sure what is here is correct,
* but this code has never been tested (and probably
* won't be either until someone finds a DOS program
* that actually uses a Post Routine) */
/* Zero everything */
memset(&ctx, 0, sizeof(ctx));
ctx.EFlags |= V86_FLAG;
/* CS:IP is routine to call */
ctx.SegCs = SELECTOROF(lpSRB16->cmd.SRB_PostProc);
ctx.Eip = OFFSETOF(lpSRB16->cmd.SRB_PostProc);
/* DPMI_CallRMProc will push the pointer to the stack
* it is given (in this case &ptrSRB) with length
* 2*sizeof(WORD), that is, it copies the contents
* of ptrSRB onto the stack, and decs sp by 2*sizeof(WORD).
* After doing that, it pushes the return address
* onto the stack (so we don't need to worry about that)
* So the stack should be okay for the PostProc
*/
if(DPMI_CallRMProc(&ctx, (LPWORD)&ptrSRB, 2, FALSE))
{
TRACE("DPMI_CallRMProc returned nonzero (error) status\n");
}
} /* if ((SRB_Flags&SRB_POSTING) && SRB_PostProc) */
}
static
DWORD ASPI_SendASPIDOSCommand(DWORD ptrSRB)
{
PSRB_ExecSCSICmd lpPRB;
DWORD retval;
union tagSRB16 * lpSRB16;
lpSRB16 = PTR_REAL_TO_LIN(SELECTOROF(ptrSRB),OFFSETOF(ptrSRB));
retval = SS_ERR;
switch( lpSRB16->common.SRB_Cmd )
{
case SC_HA_INQUIRY:
TRACE("SC_HA_INQUIRY\n");
/* Format is identical in this case */
retval = (*pSendASPI32Command)((LPSRB)lpSRB16);
break;
case SC_GET_DEV_TYPE:
TRACE("SC_GET_DEV_TYPE\n");
/* Format is identical in this case */
retval = (*pSendASPI32Command)((LPSRB)lpSRB16);
break;
case SC_EXEC_SCSI_CMD:
TRACE("SC_EXEC_SCSI_CMD\n");
TRACE("Copying data from DOS client at 0x%8x\n",ptrSRB);
lpPRB = HeapAlloc(GetProcessHeap(),0,sizeof(SRB)+lpSRB16->cmd.SRB_SenseLen+sizeof(DWORD));
#define srb_dos_to_w32(name) \
lpPRB->SRB_##name = lpSRB16->cmd.SRB_##name
srb_dos_to_w32(Cmd);
srb_dos_to_w32(Status);
srb_dos_to_w32(HaId);
srb_dos_to_w32(BufLen);
srb_dos_to_w32(SenseLen);
srb_dos_to_w32(CDBLen);
srb_dos_to_w32(Target);
srb_dos_to_w32(Lun);
#undef srb_dos_to_w32
/* Allow certain flags to go on to WNASPI32, we also need
* to make sure SRB_POSTING is enabled */
lpPRB->SRB_Flags = SRB_POSTING | (lpSRB16->cmd.SRB_Flags&(SRB_DIR_IN|SRB_DIR_OUT|SRB_ENABLE_RESIDUAL_COUNT));
/* Pointer to data buffer */
lpPRB->SRB_BufPointer = PTR_REAL_TO_LIN(SELECTOROF(lpSRB16->cmd.SRB_BufPointer),
OFFSETOF(lpSRB16->cmd.SRB_BufPointer));
/* Copy CDB in */
memcpy(&lpPRB->CDBByte[0],&lpSRB16->cmd.CDBByte[0],lpSRB16->cmd.SRB_CDBLen);
/* Set post proc to our post proc */
lpPRB->SRB_PostProc = DOSASPI_PostProc;
/* Stick the DWORD after all the sense info */
memcpy(lpPRB->SenseArea + lpPRB->SRB_SenseLen,&ptrSRB,sizeof(DWORD));
retval = (*pSendASPI32Command)((LPSRB)lpPRB);
break;
case SC_ABORT_SRB:
TRACE("SC_ABORT_SRB\n");
/* Would need some sort of table of active shit */
break;
case SC_RESET_DEV:
TRACE("SC_RESET_DEV\n");
break;
default:
TRACE("Unknown command code\n");
break;
}
TRACE("Returning %x\n", retval );
return retval;
}
static void WINAPI ASPI_DOS_func(CONTEXT *context)
{
WORD *stack = CTX_SEG_OFF_TO_LIN(context, context->SegSs, context->Esp);
DWORD ptrSRB = *(DWORD *)&stack[2];
ASPI_SendASPIDOSCommand(ptrSRB);
/* simulate a normal RETF sequence as required by DPMI CallRMProcFar */
context->Eip = *(stack++);
context->SegCs = *(stack++);
context->Esp += 2*sizeof(WORD);
}
/**********************************************************************
* ASPIHandler
*
* returns the address of a real mode callback to ASPI_DOS_func()
*/
void DOSVM_ASPIHandler( CONTEXT *context )
{
FARPROC16 *p = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
TRACE("DOS ASPI opening\n");
if ((CX_reg(context) == 4) || (CX_reg(context) == 5))
{
if( hWNASPI32 == INVALID_HANDLE_VALUE )
{
TRACE("Loading WNASPI32\n");
hWNASPI32 = LoadLibraryExA("WNASPI32", 0, 0);
}
if( hWNASPI32 == INVALID_HANDLE_VALUE )
{
ERR("Error loading WNASPI32\n");
goto error_exit;
}
/* Get SendASPI32Command by Ordinal 2 */
/* Cast to correct argument/return types */
pSendASPI32Command = (DWORD (*)(LPSRB))GetProcAddress(hWNASPI32, (LPCSTR)2);
if( !pSendASPI32Command )
{
ERR("Error getting ordinal 2 from WNASPI32\n");
goto error_exit;
}
*p = DPMI_AllocInternalRMCB(ASPI_DOS_func);
TRACE("allocated real mode proc %p\n", *p);
SET_AX( context, CX_reg(context) );
return;
}
error_exit:
/* Return some error... General Failure sounds okay */
SET_AX( context, ERROR_GEN_FAILURE );
SET_CFLAG(context);
}

23
dlls/krnl386.exe16/dosexe.h
View File

@ -38,22 +38,11 @@
/* various real-mode code stubs */
struct DPMI_segments
{
WORD wrap_seg;
WORD xms_seg;
WORD dpmi_seg;
WORD dpmi_sel;
WORD int48_sel;
WORD int16_sel;
WORD relay_code_sel;
WORD relay_data_sel;
};
/* 48-bit segmented pointers for DOS DPMI32 */
typedef struct {
WORD selector;
DWORD offset;
} SEGPTR48, FARPROC48;
typedef void (*DOSRELAY)(CONTEXT*,void*);
typedef void (WINAPI *RMCBPROC)(CONTEXT*);
typedef void (WINAPI *INTPROC)(CONTEXT*);
@ -239,9 +228,6 @@ extern int DMA_Transfer(int channel,int reqlength,void* buffer) DECLSPEC_HIDDEN;
extern void DMA_ioport_out( WORD port, BYTE val ) DECLSPEC_HIDDEN;
extern BYTE DMA_ioport_in( WORD port ) DECLSPEC_HIDDEN;
/* dosaspi.c */
extern void DOSVM_ASPIHandler(CONTEXT*) DECLSPEC_HIDDEN;
/* dosmem.c */
extern BIOSDATA *DOSVM_BiosData( void ) DECLSPEC_HIDDEN;
extern void DOSVM_start_bios_timer(void) DECLSPEC_HIDDEN;
@ -281,11 +267,6 @@ extern void WINAPI DOSVM_Int2fHandler(CONTEXT*) DECLSPEC_HIDDEN;
/* int31.c */
extern void WINAPI DOSVM_Int31Handler(CONTEXT*) DECLSPEC_HIDDEN;
extern void WINAPI DOSVM_RawModeSwitchHandler(CONTEXT*) DECLSPEC_HIDDEN;
extern BOOL DOSVM_IsDos32(void) DECLSPEC_HIDDEN;
extern FARPROC16 DPMI_AllocInternalRMCB(RMCBPROC) DECLSPEC_HIDDEN;
extern int DPMI_CallRMProc(CONTEXT*,LPWORD,int,int) DECLSPEC_HIDDEN;
extern BOOL DOSVM_CheckWrappers(CONTEXT*) DECLSPEC_HIDDEN;
/* int67.c */
extern void WINAPI DOSVM_Int67Handler(CONTEXT*) DECLSPEC_HIDDEN;
@ -296,12 +277,8 @@ extern void __wine_call_int_handler( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
extern void DOSVM_CallBuiltinHandler( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
extern BOOL DOSVM_EmulateInterruptPM( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
extern FARPROC16 DOSVM_GetPMHandler16( BYTE ) DECLSPEC_HIDDEN;
extern FARPROC48 DOSVM_GetPMHandler48( BYTE ) DECLSPEC_HIDDEN;
extern FARPROC16 DOSVM_GetRMHandler( BYTE ) DECLSPEC_HIDDEN;
extern void DOSVM_HardwareInterruptPM( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
extern void DOSVM_SetPMHandler16( BYTE, FARPROC16 ) DECLSPEC_HIDDEN;
extern void DOSVM_SetPMHandler48( BYTE, FARPROC48 ) DECLSPEC_HIDDEN;
extern void DOSVM_SetRMHandler( BYTE, FARPROC16 ) DECLSPEC_HIDDEN;
/* ioports.c */
extern DWORD DOSVM_inport( int port, int size ) DECLSPEC_HIDDEN;

105
dlls/krnl386.exe16/dosvm.c
View File

@ -160,17 +160,11 @@ static WORD alloc_selector( void *base, DWORD size, unsigned char flags )
*
* FIXME: should allocate a single PM selector for the whole UMB range.
*/
static LPVOID DOSVM_AllocCodeUMB( DWORD size, WORD *segment, WORD *selector )
static LPVOID DOSVM_AllocCodeUMB( DWORD size, WORD *selector )
{
LPVOID ptr = DOSVM_AllocUMB( size );
if (segment)
*segment = (DWORD)ptr >> 4;
if (selector)
LPVOID ptr = DOSVM_AllocUMB( size );
*selector = alloc_selector( ptr, size, WINE_LDT_FLAGS_CODE );
return ptr;
return ptr;
}
@ -207,50 +201,6 @@ void DOSVM_InitSegments(void)
LPSTR ptr;
int i;
static const char wrap_code[]={
0xCD,0x31, /* int $0x31 */
0xCB /* lret */
};
static const char enter_xms[]=
{
/* XMS hookable entry point */
0xEB,0x03, /* jmp entry */
0x90,0x90,0x90, /* nop;nop;nop */
/* entry: */
/* real entry point */
/* for simplicity, we'll just use the same hook as DPMI below */
0xCD,0x31, /* int $0x31 */
0xCB /* lret */
};
static const char enter_pm[]=
{
0x50, /* pushw %ax */
0x52, /* pushw %dx */
0x55, /* pushw %bp */
0x89,0xE5, /* movw %sp,%bp */
/* get return CS */
0x8B,0x56,0x08, /* movw 8(%bp),%dx */
/* just call int 31 here to get into protected mode... */
/* it'll check whether it was called from dpmi_seg... */
0xCD,0x31, /* int $0x31 */
/* we are now in the context of a 16-bit relay call */
/* need to fixup our stack;
* 16-bit relay return address will be lost,
* but we won't worry quite yet
*/
0x8E,0xD0, /* movw %ax,%ss */
0x66,0x0F,0xB7,0xE5, /* movzwl %bp,%esp */
/* set return CS */
0x89,0x56,0x08, /* movw %dx,8(%bp) */
0x5D, /* popw %bp */
0x5A, /* popw %dx */
0x58, /* popw %ax */
0xfb, /* sti, enable and check virtual interrupts */
0xCB /* lret */
};
static const char relay[]=
{
0xca, 0x04, 0x00, /* 16-bit far return and pop 4 bytes (relay void* arg) */
@ -263,54 +213,10 @@ void DOSVM_InitSegments(void)
*/
DOSVM_dpmi_segments = DOSVM_AllocUMB( sizeof(struct DPMI_segments) );
/*
* RM / offset 0: Exit from real mode.
* RM / offset 2: Points to lret opcode.
*/
ptr = DOSVM_AllocCodeUMB( sizeof(wrap_code),
&DOSVM_dpmi_segments->wrap_seg, 0 );
memcpy( ptr, wrap_code, sizeof(wrap_code) );
/*
* RM / offset 0: XMS driver entry.
*/
ptr = DOSVM_AllocCodeUMB( sizeof(enter_xms),
&DOSVM_dpmi_segments->xms_seg, 0 );
memcpy( ptr, enter_xms, sizeof(enter_xms) );
/*
* RM / offset 0: Switch to DPMI.
* PM / offset 8: DPMI raw mode switch.
*/
ptr = DOSVM_AllocCodeUMB( sizeof(enter_pm),
&DOSVM_dpmi_segments->dpmi_seg,
&DOSVM_dpmi_segments->dpmi_sel );
memcpy( ptr, enter_pm, sizeof(enter_pm) );
/*
* PM / offset N*6: Interrupt N in DPMI32.
*/
ptr = DOSVM_AllocCodeUMB( 6 * 256,
0, &DOSVM_dpmi_segments->int48_sel );
for(i=0; i<256; i++) {
/*
* Each 32-bit interrupt handler is 6 bytes:
* 0xCD,<i> = int <i> (nested 16-bit interrupt)
* 0x66,0xCA,0x04,0x00 = ret 4 (32-bit far return and pop 4 bytes / eflags)
*/
ptr[i * 6 + 0] = 0xCD;
ptr[i * 6 + 1] = i;
ptr[i * 6 + 2] = 0x66;
ptr[i * 6 + 3] = 0xCA;
ptr[i * 6 + 4] = 0x04;
ptr[i * 6 + 5] = 0x00;
}
/*
* PM / offset N*5: Interrupt N in 16-bit protected mode.
*/
ptr = DOSVM_AllocCodeUMB( 5 * 256,
0, &DOSVM_dpmi_segments->int16_sel );
ptr = DOSVM_AllocCodeUMB( 5 * 256, &DOSVM_dpmi_segments->int16_sel );
for(i=0; i<256; i++) {
/*
* Each 16-bit interrupt handler is 5 bytes:
@ -329,8 +235,7 @@ void DOSVM_InitSegments(void)
* PM / offset 3: Stub which swaps back to 32-bit application code/stack.
* PM / offset 5: Stub which enables interrupts
*/
ptr = DOSVM_AllocCodeUMB( sizeof(relay),
0, &DOSVM_dpmi_segments->relay_code_sel);
ptr = DOSVM_AllocCodeUMB( sizeof(relay), &DOSVM_dpmi_segments->relay_code_sel);
memcpy( ptr, relay, sizeof(relay) );
/*

2
dlls/krnl386.exe16/instr.c
View File

@ -865,12 +865,10 @@ DWORD __wine_emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT *context )
return ExceptionContinueExecution;
case 0xfa: /* cli */
get_vm86_teb_info()->dpmi_vif = 0;
context->Eip += prefixlen + 1;
return ExceptionContinueExecution;
case 0xfb: /* sti */
get_vm86_teb_info()->dpmi_vif = 1;
context->Eip += prefixlen + 1;
return ExceptionContinueExecution;
}

16
dlls/krnl386.exe16/int21.c
View File

@ -2582,15 +2582,12 @@ static void INT21_IoctlScsiMgrHandler( CONTEXT *context )
SET_DX( context, 0xc0c0 );
break;
case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
DOSVM_ASPIHandler(context);
break;
case 0x0a: /* CHECK IF HANDLE IS REMOTE */
SET_DX( context, 0 );
break;
case 0x01: /* SET DEVICE INFORMATION */
case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
case 0x06: /* GET INPUT STATUS */
case 0x07: /* GET OUTPUT STATUS */
@ -4291,10 +4288,7 @@ void WINAPI DOSVM_Int21Handler( CONTEXT *context )
TRACE("SET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 ptr = (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context) );
if (!ISV86(context))
DOSVM_SetPMHandler16( AL_reg(context), ptr );
else
DOSVM_SetRMHandler( AL_reg(context), ptr );
DOSVM_SetPMHandler16( AL_reg(context), ptr );
}
break;
@ -4487,11 +4481,7 @@ void WINAPI DOSVM_Int21Handler( CONTEXT *context )
case 0x35: /* GET INTERRUPT VECTOR */
TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 addr;
if (!ISV86(context))
addr = DOSVM_GetPMHandler16( AL_reg(context) );
else
addr = DOSVM_GetRMHandler( AL_reg(context) );
FARPROC16 addr = DOSVM_GetPMHandler16( AL_reg(context) );
context->SegEs = SELECTOROF(addr);
SET_BX( context, OFFSETOF(addr) );
}

20
dlls/krnl386.exe16/int2f.c
View File

@ -139,26 +139,8 @@ void WINAPI DOSVM_Int2fHandler( CONTEXT *context )
break;
case 0x43:
#if 1
switch (LOBYTE(context->Eax))
{
case 0x00: /* XMS v2+ installation check */
WARN("XMS is not fully implemented\n");
SET_AL( context, 0x80 );
break;
case 0x10: /* XMS v2+ get driver address */
{
context->SegEs = DOSVM_dpmi_segments->xms_seg;
SET_BX( context, 0 );
break;
}
default:
INT_BARF( context, 0x2f );
}
#else
FIXME("check for XMS (not supported)\n");
SET_AL( context, 0x42 ); /* != 0x80 */
#endif
break;
case 0x45:
@ -399,7 +381,7 @@ static void do_int2f_16( CONTEXT *context )
SET_CL( context, si.wProcessorLevel );
SET_DX( context, 0x005a ); /* DPMI major/minor 0.90 */
SET_SI( context, 0 ); /* # of para. of DOS extended private data */
context->SegEs = DOSVM_dpmi_segments->dpmi_seg;
context->SegEs = 0; /* no DPMI switch */
SET_DI( context, 0 ); /* ES:DI is DPMI switch entry point */
break;
}

807
dlls/krnl386.exe16/int31.c
View File

@ -37,133 +37,7 @@
WINE_DEFAULT_DEBUG_CHANNEL(int31);
/* 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;
typedef struct tagRMCB {
DWORD address;
DWORD proc_ofs,proc_sel;
DWORD regs_ofs,regs_sel;
struct tagRMCB *next;
} RMCB;
static RMCB *FirstRMCB = NULL;
static WORD dpmi_flag;
static void* lastvalloced = NULL;
static BYTE DPMI_retval;
#include "pshpack1.h"
typedef struct {
WORD Handle;
DWORD Offset;
} MOVEOFS;
typedef struct {
DWORD Length;
MOVEOFS Source;
MOVEOFS Dest;
} MOVESTRUCT;
#include "poppack.h"
/**********************************************************************
* DOSVM_IsDos32
*
* Return TRUE if we are in 32-bit protected mode DOS process.
*/
BOOL DOSVM_IsDos32(void)
{
return (dpmi_flag & 1) != 0;
}
/**********************************************************************
* alloc_pm_selector
*
* Allocate a 64k sized selector corresponding to a real mode segment.
*/
static WORD alloc_pm_selector( WORD seg, unsigned char flags )
{
WORD sel = wine_ldt_alloc_entries( 1 );
if (sel)
{
LDT_ENTRY entry;
wine_ldt_set_base( &entry, (void *)(seg << 4) );
wine_ldt_set_limit( &entry, 0xffff );
wine_ldt_set_flags( &entry, flags );
wine_ldt_set_entry( sel, &entry );
}
return sel;
}
/**********************************************************************
* INT_GetRealModeContext
*/
static void INT_GetRealModeContext( REALMODECALL *call, CONTEXT *context )
{
context->Eax = call->eax;
context->Ebx = call->ebx;
context->Ecx = call->ecx;
context->Edx = call->edx;
context->Esi = call->esi;
context->Edi = call->edi;
context->Ebp = call->ebp;
context->EFlags = call->fl | V86_FLAG;
context->Eip = call->ip;
context->Esp = call->sp;
context->SegCs = call->cs;
context->SegDs = call->ds;
context->SegEs = call->es;
context->SegFs = call->fs;
context->SegGs = call->gs;
context->SegSs = call->ss;
}
/**********************************************************************
* INT_SetRealModeContext
*/
static void INT_SetRealModeContext( REALMODECALL *call, CONTEXT *context )
{
call->eax = context->Eax;
call->ebx = context->Ebx;
call->ecx = context->Ecx;
call->edx = context->Edx;
call->esi = context->Esi;
call->edi = context->Edi;
call->ebp = context->Ebp;
call->fl = LOWORD(context->EFlags);
call->ip = LOWORD(context->Eip);
call->sp = LOWORD(context->Esp);
call->cs = context->SegCs;
call->ds = context->SegDs;
call->es = context->SegEs;
call->fs = context->SegFs;
call->gs = context->SegGs;
call->ss = context->SegSs;
}
/**********************************************************************
* DPMI_xalloc
@ -273,588 +147,6 @@ static LPVOID DPMI_xrealloc( LPVOID ptr, DWORD newsize )
}
void DPMI_CallRMCB32(RMCB *rmcb, UINT16 ss, DWORD esp, UINT16*es, DWORD*edi)
#if 0 /* original code, which early gccs puke on */
{
int _clobber;
__asm__ __volatile__(
"pushl %%ebp\n"
"pushl %%ebx\n"
"pushl %%es\n"
"pushl %%ds\n"
"pushfl\n"
"mov %7,%%es\n"
"mov %5,%%ds\n"
".byte 0x36, 0xff, 0x18\n" /* lcall *%ss:(%eax) */
"popl %%ds\n"
"mov %%es,%0\n"
"popl %%es\n"
"popl %%ebx\n"
"popl %%ebp\n"
: "=d" (*es), "=D" (*edi), "=S" (_clobber), "=a" (_clobber), "=c" (_clobber)
: "0" (ss), "2" (esp),
"4" (rmcb->regs_sel), "1" (rmcb->regs_ofs),
"3" (&rmcb->proc_ofs) );
}
#else /* code generated by a gcc new enough */
;
__ASM_GLOBAL_FUNC(DPMI_CallRMCB32,
"pushl %ebp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
"movl %esp,%ebp\n\t"
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
"pushl %edi\n\t"
__ASM_CFI(".cfi_rel_offset %edi,-4\n\t")
"pushl %esi\n\t"
__ASM_CFI(".cfi_rel_offset %esi,-8\n\t")
"movl 0x8(%ebp),%eax\n\t"
"movl 0x10(%ebp),%esi\n\t"
"movl 0xc(%ebp),%edx\n\t"
"movl 0x10(%eax),%ecx\n\t"
"movl 0xc(%eax),%edi\n\t"
"addl $0x4,%eax\n\t"
"pushl %ebp\n\t"
"pushl %ebx\n\t"
"pushl %es\n\t"
"pushl %ds\n\t"
"pushfl\n\t"
"mov %cx,%es\n\t"
"mov %dx,%ds\n\t"
".byte 0x36, 0xff, 0x18\n\t" /* lcall *%ss:(%eax) */
"popl %ds\n\t"
"mov %es,%dx\n\t"
"popl %es\n\t"
"popl %ebx\n\t"
"popl %ebp\n\t"
"movl 0x14(%ebp),%eax\n\t"
"movw %dx,(%eax)\n\t"
"movl 0x18(%ebp),%edx\n\t"
"movl %edi,(%edx)\n\t"
"popl %esi\n\t"
__ASM_CFI(".cfi_same_value %esi\n\t")
"popl %edi\n\t"
__ASM_CFI(".cfi_same_value %edi\n\t")
"leave\n\t"
__ASM_CFI(".cfi_def_cfa %esp,4\n\t")
__ASM_CFI(".cfi_same_value %ebp\n\t")
"ret")
#endif
/**********************************************************************
* DPMI_CallRMCBProc
*
* This routine does the hard work of calling a callback procedure.
*/
static void DPMI_CallRMCBProc( CONTEXT *context, RMCB *rmcb, WORD flag )
{
DWORD old_vif = get_vm86_teb_info()->dpmi_vif;
/* Disable virtual interrupts. */
get_vm86_teb_info()->dpmi_vif = 0;
if (wine_ldt_is_system( rmcb->proc_sel )) {
/* Wine-internal RMCB, call directly */
((RMCBPROC)rmcb->proc_ofs)(context);
} else {
UINT16 ss,es;
DWORD esp,edi;
INT_SetRealModeContext(MapSL(MAKESEGPTR( rmcb->regs_sel, rmcb->regs_ofs )), context);
ss = alloc_pm_selector( context->SegSs, WINE_LDT_FLAGS_DATA );
esp = context->Esp;
FIXME("untested!\n");
/* The called proc ends with an IRET, and takes these parameters:
* DS:ESI = pointer to real-mode SS:SP
* ES:EDI = pointer to real-mode call structure
* It returns:
* ES:EDI = pointer to real-mode call structure (may be a copy)
* It is the proc's responsibility to change the return CS:IP in the
* real-mode call structure. */
if (flag & 1) {
/* 32-bit DPMI client */
DPMI_CallRMCB32(rmcb, ss, esp, &es, &edi);
} else {
/* 16-bit DPMI client */
CONTEXT ctx = *context;
ctx.SegCs = rmcb->proc_sel;
ctx.Eip = rmcb->proc_ofs;
ctx.SegDs = ss;
ctx.Esi = esp;
ctx.SegEs = rmcb->regs_sel;
ctx.Edi = rmcb->regs_ofs;
/* FIXME: I'm pretty sure this isn't right - should push flags first */
WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&ctx );
es = ctx.SegEs;
edi = ctx.Edi;
}
wine_ldt_free_entries( ss, 1 );
INT_GetRealModeContext( MapSL( MAKESEGPTR( es, edi )), context);
}
/* Restore virtual interrupt flag. */
get_vm86_teb_info()->dpmi_vif = old_vif;
}
/**********************************************************************
* DPMI_CallRMProc
*
* This routine does the hard work of calling a real mode procedure.
*/
int DPMI_CallRMProc( CONTEXT *context, LPWORD stack, int args, int iret )
{
LPWORD stack16;
LPVOID addr = NULL; /* avoid gcc warning */
RMCB *CurrRMCB;
BOOL alloc = FALSE, already = FALSE;
BYTE *code;
TRACE("EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n",
context->Eax, context->Ebx, context->Ecx, context->Edx );
TRACE("ESI=%08x EDI=%08x ES=%04x DS=%04x CS:IP=%04x:%04x, %d WORD arguments, %s\n",
context->Esi, context->Edi, context->SegEs, context->SegDs,
context->SegCs, LOWORD(context->Eip), args, iret?"IRET":"FAR" );
callrmproc_again:
/* there might be some code that just jumps to RMCBs or the like,
in which case following the jumps here might get us to a shortcut */
code = CTX_SEG_OFF_TO_LIN(context, context->SegCs, context->Eip);
switch (*code) {
case 0xe9: /* JMP NEAR */
context->Eip += 3 + *(WORD *)(code+1);
/* yeah, I know these gotos don't look good... */
goto callrmproc_again;
case 0xea: /* JMP FAR */
context->Eip = *(WORD *)(code+1);
context->SegCs = *(WORD *)(code+3);
/* ...but since the label is there anyway... */
goto callrmproc_again;
case 0xeb: /* JMP SHORT */
context->Eip += 2 + *(signed char *)(code+1);
/* ...because of other gotos below, so... */
goto callrmproc_again;
}
/* shortcut for chaining to internal interrupt handlers */
if ((context->SegCs == 0xF000) && iret)
{
DOSVM_CallBuiltinHandler( context, LOWORD(context->Eip)/4 );
return 0;
}
/* shortcut for RMCBs */
CurrRMCB = FirstRMCB;
while (CurrRMCB && (HIWORD(CurrRMCB->address) != context->SegCs))
CurrRMCB = CurrRMCB->next;
if (!CurrRMCB)
{
FIXME("DPMI real-mode call using DOS VM task system, not fully tested!\n");
return 0;
}
if (!already) {
if (!context->SegSs) {
alloc = TRUE; /* allocate default stack */
stack16 = addr = DOSMEM_AllocBlock( 64, (UINT16 *)&(context->SegSs) );
context->Esp = 64-2;
stack16 += 32-1;
if (!addr) {
ERR("could not allocate default stack\n");
return 1;
}
} else {
stack16 = CTX_SEG_OFF_TO_LIN(context, context->SegSs, context->Esp);
}
context->Esp -= (args + (iret?1:0)) * sizeof(WORD);
stack16 -= args;
if (args) memcpy(stack16, stack, args*sizeof(WORD) );
/* push flags if iret */
if (iret) {
stack16--; args++;
*stack16 = LOWORD(context->EFlags);
}
/* push return address (return to interrupt wrapper) */
*(--stack16) = DOSVM_dpmi_segments->wrap_seg;
*(--stack16) = 0;
/* adjust stack */
context->Esp -= 2*sizeof(WORD);
already = TRUE;
}
/* RMCB call, invoke protected-mode handler directly */
DPMI_CallRMCBProc(context, CurrRMCB, dpmi_flag);
/* check if we returned to where we thought we would */
if ((context->SegCs != DOSVM_dpmi_segments->wrap_seg) ||
(LOWORD(context->Eip) != 0)) {
/* we need to continue at different address in real-mode space,
so we need to set it all up for real mode again */
goto callrmproc_again;
}
if (alloc) DOSMEM_FreeBlock( addr );
return 0;
}
/**********************************************************************
* CallRMInt
*/
static void DOSVM_CallRMInt( CONTEXT *context )
{
CONTEXT realmode_ctx;
FARPROC16 rm_int = DOSVM_GetRMHandler( BL_reg(context) );
REALMODECALL *call = CTX_SEG_OFF_TO_LIN( context,
context->SegEs,
context->Edi );
INT_GetRealModeContext( call, &realmode_ctx );
/* we need to check if a real-mode program has hooked the interrupt */
if (HIWORD(rm_int)!=0xF000) {
/* yup, which means we need to switch to real mode... */
realmode_ctx.SegCs = HIWORD(rm_int);
realmode_ctx.Eip = LOWORD(rm_int);
if (DPMI_CallRMProc( &realmode_ctx, NULL, 0, TRUE))
SET_CFLAG(context);
} else {
RESET_CFLAG(context);
/* use the IP we have instead of BL_reg, in case some apps
decide to move interrupts around for whatever reason... */
DOSVM_CallBuiltinHandler( &realmode_ctx, LOWORD(rm_int)/4 );
}
INT_SetRealModeContext( call, &realmode_ctx );
}
/**********************************************************************
* CallRMProc
*/
static void DOSVM_CallRMProc( CONTEXT *context, int iret )
{
REALMODECALL *p = CTX_SEG_OFF_TO_LIN( context,
context->SegEs,
context->Edi );
CONTEXT context16;
TRACE("RealModeCall: EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n",
p->eax, p->ebx, p->ecx, p->edx);
TRACE(" ESI=%08x EDI=%08x ES=%04x DS=%04x CS:IP=%04x:%04x, %d WORD arguments, %s\n",
p->esi, p->edi, p->es, p->ds, p->cs, p->ip, CX_reg(context), iret?"IRET":"FAR" );
if (!(p->cs) && !(p->ip)) { /* remove this check
if Int21/6501 case map function
has been implemented */
SET_CFLAG(context);
return;
}
INT_GetRealModeContext(p, &context16);
DPMI_CallRMProc( &context16, ((LPWORD)MapSL(MAKESEGPTR(context->SegSs, LOWORD(context->Esp))))+3,
CX_reg(context), iret );
INT_SetRealModeContext(p, &context16);
}
/* (see dosmem.c, function DOSMEM_InitDPMI) */
static void StartPM( CONTEXT *context )
{
UINT16 cs, ss, ds, es;
CONTEXT pm_ctx;
DWORD psp_ofs = (DWORD)(DOSVM_psp<<4);
PDB16 *psp = (PDB16 *)psp_ofs;
HANDLE16 env_seg = psp->environment;
unsigned char selflags = WINE_LDT_FLAGS_DATA;
RESET_CFLAG(context);
dpmi_flag = AX_reg(context);
/* our mode switch wrapper have placed the desired CS into DX */
cs = alloc_pm_selector( context->Edx, WINE_LDT_FLAGS_CODE );
/* due to a flaw in some CPUs (at least mine), it is best to mark stack segments as 32-bit if they
can be used in 32-bit code. Otherwise, these CPUs may not set the high word of esp during a
ring transition (from kernel code) to the 16-bit stack, and this causes trouble if executing
32-bit code using this stack. */
if (dpmi_flag & 1) selflags |= WINE_LDT_FLAGS_32BIT;
ss = alloc_pm_selector( context->SegSs, selflags );
/* do the same for the data segments, just in case */
if (context->SegDs == context->SegSs) ds = ss;
else ds = alloc_pm_selector( context->SegDs, selflags );
es = alloc_pm_selector( DOSVM_psp, selflags );
/* convert environment pointer, as the spec says, but we're a bit lazy about the size here... */
psp->environment = alloc_pm_selector( env_seg, WINE_LDT_FLAGS_DATA );
pm_ctx = *context;
pm_ctx.SegCs = DOSVM_dpmi_segments->dpmi_sel;
/* our mode switch wrapper expects the new CS in DX, and the new SS in AX */
pm_ctx.Eax = ss;
pm_ctx.Edx = cs;
pm_ctx.SegDs = ds;
pm_ctx.SegEs = es;
pm_ctx.SegFs = wine_get_fs();
pm_ctx.SegGs = wine_get_gs();
pm_ctx.EFlags &= ~V86_FLAG;
TRACE("DOS program is now entering %d-bit protected mode\n",
DOSVM_IsDos32() ? 32 : 16);
WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&pm_ctx );
TRACE( "Protected mode DOS program is terminating\n" );
/*
* FIXME: Instead of calling DOSVM_Exit, we should release all
* allocated protected mode resources and call MZ_Exit
* using real mode context. See DPMI specification.
*/
DOSVM_Exit( DPMI_retval );
#if 0
wine_ldt_free_entries( psp->environment, 1 );
psp->environment = env_seg;
wine_ldt_free_entries(es,1);
if (ds != ss) wine_ldt_free_entries(ds,1);
wine_ldt_free_entries(ss,1);
wine_ldt_free_entries(cs,1);
#endif
}
static RMCB *DPMI_AllocRMCB( void )
{
RMCB *NewRMCB = HeapAlloc(GetProcessHeap(), 0, sizeof(RMCB));
UINT16 uParagraph;
if (NewRMCB)
{
LPVOID RMCBmem = DOSMEM_AllocBlock(4, &uParagraph);
LPBYTE p = RMCBmem;
*p++ = 0xcd; /* RMCB: */
*p++ = 0x31; /* int $0x31 */
/* it is the called procedure's task to change the return CS:EIP
the DPMI 0.9 spec states that if it doesn't, it will be called again */
*p++ = 0xeb;
*p++ = 0xfc; /* jmp RMCB */
NewRMCB->address = MAKELONG(0, uParagraph);
NewRMCB->next = FirstRMCB;
FirstRMCB = NewRMCB;
}
return NewRMCB;
}
FARPROC16 DPMI_AllocInternalRMCB( RMCBPROC proc )
{
RMCB *NewRMCB = DPMI_AllocRMCB();
if (NewRMCB) {
NewRMCB->proc_ofs = (DWORD)proc;
NewRMCB->proc_sel = 0;
NewRMCB->regs_ofs = 0;
NewRMCB->regs_sel = 0;
return (FARPROC16)(NewRMCB->address);
}
return NULL;
}
static BOOL DPMI_FreeRMCB( DWORD address )
{
RMCB *CurrRMCB = FirstRMCB;
RMCB *PrevRMCB = NULL;
while (CurrRMCB && (CurrRMCB->address != address))
{
PrevRMCB = CurrRMCB;
CurrRMCB = CurrRMCB->next;
}
if (CurrRMCB)
{
if (PrevRMCB)
PrevRMCB->next = CurrRMCB->next;
else
FirstRMCB = CurrRMCB->next;
DOSMEM_FreeBlock(PTR_REAL_TO_LIN(SELECTOROF(CurrRMCB->address),OFFSETOF(CurrRMCB->address)));
HeapFree(GetProcessHeap(), 0, CurrRMCB);
return TRUE;
}
return FALSE;
}
/**********************************************************************
* DOSVM_RawModeSwitchHandler
*
* DPMI Raw Mode Switch handler
*/
void WINAPI DOSVM_RawModeSwitchHandler( CONTEXT *context )
{
FIXME( "no longer supported\n" );
}
/**********************************************************************
* AllocRMCB
*/
static void DOSVM_AllocRMCB( CONTEXT *context )
{
RMCB *NewRMCB = DPMI_AllocRMCB();
TRACE("Function to call: %04x:%04x\n", (WORD)context->SegDs, SI_reg(context) );
if (NewRMCB)
{
NewRMCB->proc_ofs = DOSVM_IsDos32() ? context->Esi : LOWORD(context->Esi);
NewRMCB->proc_sel = context->SegDs;
NewRMCB->regs_ofs = DOSVM_IsDos32() ? context->Edi : LOWORD(context->Edi);
NewRMCB->regs_sel = context->SegEs;
SET_CX( context, HIWORD(NewRMCB->address) );
SET_DX( context, LOWORD(NewRMCB->address) );
}
else
{
SET_AX( context, 0x8015 ); /* callback unavailable */
SET_CFLAG(context);
}
}
/**********************************************************************
* FreeRMCB
*/
static void DOSVM_FreeRMCB( CONTEXT *context )
{
FIXME("callback address: %04x:%04x\n",
CX_reg(context), DX_reg(context));
if (!DPMI_FreeRMCB(MAKELONG(DX_reg(context), CX_reg(context)))) {
SET_AX( context, 0x8024 ); /* invalid callback address */
SET_CFLAG(context);
}
}
static BYTE * XMS_Offset( MOVEOFS *ofs )
{
if (ofs->Handle) return (BYTE*)GlobalLock16(ofs->Handle)+ofs->Offset;
else return PTR_REAL_TO_LIN(SELECTOROF(ofs->Offset),OFFSETOF(ofs->Offset));
}
/**********************************************************************
* XMS_Handler
*/
static void XMS_Handler( CONTEXT *context )
{
switch(AH_reg(context))
{
case 0x00: /* Get XMS version number */
TRACE("get XMS version number\n");
SET_AX( context, 0x0200 ); /* 2.0 */
SET_BX( context, 0x0000 ); /* internal revision */
SET_DX( context, 0x0001 ); /* HMA exists */
break;
case 0x08: /* Query Free Extended Memory */
{
MEMORYSTATUS status;
TRACE("query free extended memory\n");
GlobalMemoryStatus( &status );
SET_DX( context, status.dwAvailVirtual >> 10 );
SET_AX( context, status.dwAvailVirtual >> 10 );
TRACE("returning largest %dK, total %dK\n", AX_reg(context), DX_reg(context));
}
break;
case 0x09: /* Allocate Extended Memory Block */
TRACE("allocate extended memory block (%dK)\n",
DX_reg(context));
SET_DX( context, GlobalAlloc16(GMEM_MOVEABLE, (DWORD)DX_reg(context)<<10) );
SET_AX( context, DX_reg(context) ? 1 : 0 );
if (!DX_reg(context)) SET_BL( context, 0xA0 ); /* out of memory */
break;
case 0x0a: /* Free Extended Memory Block */
TRACE("free extended memory block %04x\n",DX_reg(context));
if(!DX_reg(context) || GlobalFree16(DX_reg(context))) {
SET_AX( context, 0 ); /* failure */
SET_BL( context, 0xa2 ); /* invalid handle */
} else
SET_AX( context, 1 ); /* success */
break;
case 0x0b: /* Move Extended Memory Block */
{
MOVESTRUCT*move=CTX_SEG_OFF_TO_LIN(context,
context->SegDs,context->Esi);
BYTE*src,*dst;
TRACE("move extended memory block\n");
src=XMS_Offset(&move->Source);
dst=XMS_Offset(&move->Dest);
memcpy(dst,src,move->Length);
if (move->Source.Handle) GlobalUnlock16(move->Source.Handle);
if (move->Dest.Handle) GlobalUnlock16(move->Dest.Handle);
break;
}
case 0x88: /* Query Any Free Extended Memory */
{
MEMORYSTATUS status;
SYSTEM_INFO info;
TRACE("query any free extended memory\n");
GlobalMemoryStatus( &status );
GetSystemInfo( &info );
context->Eax = status.dwAvailVirtual >> 10;
context->Edx = status.dwAvailVirtual >> 10;
context->Ecx = (DWORD)info.lpMaximumApplicationAddress;
SET_BL( context, 0 ); /* No errors. */
TRACE("returning largest %dK, total %dK, highest 0x%x\n",
context->Eax, context->Edx, context->Ecx);
}
break;
default:
INT_BARF( context, 0x31 );
SET_AX( context, 0x0000 ); /* failure */
SET_BL( context, 0x80 ); /* function not implemented */
break;
}
}
/**********************************************************************
* DOSVM_CheckWrappers
*
* Check if this was really a wrapper call instead of an interrupt.
*/
BOOL DOSVM_CheckWrappers( CONTEXT *context )
{
if (context->SegCs==DOSVM_dpmi_segments->dpmi_seg) {
/* This is the protected mode switch */
StartPM(context);
return TRUE;
}
else if (context->SegCs==DOSVM_dpmi_segments->xms_seg)
{
/* This is the XMS driver entry point */
XMS_Handler(context);
return TRUE;
}
else
{
/* Check for RMCB */
RMCB *CurrRMCB = FirstRMCB;
while (CurrRMCB && (HIWORD(CurrRMCB->address) != context->SegCs))
CurrRMCB = CurrRMCB->next;
if (CurrRMCB) {
/* RMCB call, propagate to protected-mode handler */
DPMI_CallRMCBProc(context, CurrRMCB, dpmi_flag);
return TRUE;
}
}
return FALSE;
}
/**********************************************************************
* DOSVM_Int31Handler
*
@ -1068,35 +360,22 @@ void WINAPI DOSVM_Int31Handler( CONTEXT *context )
break;
case 0x0200: /* get real mode interrupt vector */
TRACE( "get realmode interrupt vector (0x%02x)\n",
TRACE( "get realmode interrupt vector (0x%02x) - not supported\n",
BL_reg(context) );
{
FARPROC16 proc = DOSVM_GetRMHandler( BL_reg(context) );
SET_CX( context, SELECTOROF(proc) );
SET_DX( context, OFFSETOF(proc) );
}
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)\n",
TRACE( "set realmode interrupt vector (0x%02x, 0x%04x:0x%04x) - not supported\n",
BL_reg(context), CX_reg(context), DX_reg(context) );
DOSVM_SetRMHandler( BL_reg(context),
(FARPROC16)MAKESEGPTR(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) );
if (DOSVM_IsDos32())
{
SET_CX( context, 0 );
context->Edx = 0;
}
else
{
SET_CX( context, 0 );
SET_DX( context, 0 );
}
SET_CX( context, 0 );
SET_DX( context, 0 );
break;
case 0x0203: /* Set Processor Exception Handler Vector */
@ -1107,13 +386,6 @@ void WINAPI DOSVM_Int31Handler( CONTEXT *context )
case 0x0204: /* Get protected mode interrupt vector */
TRACE("get protected mode interrupt handler (0x%02x)\n",
BL_reg(context));
if (DOSVM_IsDos32())
{
FARPROC48 handler = DOSVM_GetPMHandler48( BL_reg(context) );
SET_CX( context, handler.selector );
context->Edx = handler.offset;
}
else
{
FARPROC16 handler = DOSVM_GetPMHandler16( BL_reg(context) );
SET_CX( context, SELECTOROF(handler) );
@ -1124,14 +396,6 @@ void WINAPI DOSVM_Int31Handler( CONTEXT *context )
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);
if (DOSVM_IsDos32())
{
FARPROC48 handler;
handler.selector = CX_reg(context);
handler.offset = context->Edx;
DOSVM_SetPMHandler48( BL_reg(context), handler );
}
else
{
FARPROC16 handler;
handler = (FARPROC16)MAKESEGPTR( CX_reg(context), DX_reg(context));
@ -1140,58 +404,45 @@ void WINAPI DOSVM_Int31Handler( CONTEXT *context )
break;
case 0x0300: /* Simulate real mode interrupt */
TRACE( "Simulate real mode interrupt %02x.\n", BL_reg(context));
DOSVM_CallRMInt( context );
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.\n" );
DOSVM_CallRMProc( context, FALSE );
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.\n" );
DOSVM_CallRMProc( context, TRUE );
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.\n" );
DOSVM_AllocRMCB( context );
TRACE( "Allocate real mode callback address - not supported\n" );
break;
case 0x0304: /* Free Real Mode Callback Address */
TRACE( "Free real mode callback address.\n" );
DOSVM_FreeRMCB( context );
TRACE( "Free real mode callback address - not supported\n" );
break;
case 0x0305: /* Get State Save/Restore Addresses */
TRACE("get state save/restore addresses\n");
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: just point to the lret */
SET_BX( context, DOSVM_dpmi_segments->wrap_seg );
SET_CX( context, 2 );
/* protected mode: don't have any handler yet... */
/* FIXME: Use DI in 16-bit DPMI and EDI in 32-bit DPMI */
FIXME("no protected-mode dummy state save/restore handler yet\n");
/* 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\n");
/* real mode, point to standard DPMI return wrapper */
SET_BX( context, DOSVM_dpmi_segments->wrap_seg );
TRACE("get raw mode switch addresses - no longer supported\n");
/* real mode */
SET_BX( context, 0 );
SET_CX( context, 0 );
/* protected mode, point to DPMI call wrapper */
/* FIXME: Use DI in 16-bit DPMI and EDI in 32-bit DPMI */
/* FIXME: Doesn't work in DPMI32... */
SET_SI( context, DOSVM_dpmi_segments->dpmi_sel );
context->Edi = 8; /* offset of the INT 0x31 call */
/* protected mode */
SET_SI( context, 0 );
context->Edi = 0;
break;
case 0x0400: /* Get DPMI version */
@ -1354,23 +605,15 @@ void WINAPI DOSVM_Int31Handler( CONTEXT *context )
break;
case 0x0900: /* Get and Disable Virtual Interrupt State */
TRACE( "Get and Disable Virtual Interrupt State: %d\n",
get_vm86_teb_info()->dpmi_vif );
SET_AL( context, get_vm86_teb_info()->dpmi_vif ? 1 : 0 );
get_vm86_teb_info()->dpmi_vif = 0;
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: %d\n",
get_vm86_teb_info()->dpmi_vif );
SET_AL( context, get_vm86_teb_info()->dpmi_vif ? 1 : 0 );
get_vm86_teb_info()->dpmi_vif = 1;
TRACE( "Get and Enable Virtual Interrupt State - not supported\n" );
break;
case 0x0902: /* Get Virtual Interrupt State */
TRACE( "Get Virtual Interrupt State: %d\n",
get_vm86_teb_info()->dpmi_vif );
SET_AL( context, get_vm86_teb_info()->dpmi_vif ? 1 : 0 );
TRACE( "Get Virtual Interrupt State - not supported\n" );
break;
case 0x0e00: /* Get Coprocessor Status (1.0) */

190
dlls/krnl386.exe16/interrupts.c
View File

@ -47,7 +47,6 @@ static void WINAPI DOSVM_Int5cHandler(CONTEXT*);
static void WINAPI DOSVM_DefaultHandler(CONTEXT*);
static FARPROC16 DOSVM_Vectors16[256];
static FARPROC48 DOSVM_Vectors48[256];
static const INTPROC DOSVM_VectorsBuiltin[] =
{
/* 00 */ 0, 0, 0, 0,
@ -83,30 +82,7 @@ static const INTPROC DOSVM_VectorsBuiltin[] =
/*
* Sizes of real mode and protected mode interrupt stubs.
*/
#define DOSVM_STUB_RM 4
#define DOSVM_STUB_PM16 5
#define DOSVM_STUB_PM48 6
/**********************************************************************
* DOSVM_GetRMVector
*
* Return pointer to real mode interrupt vector. These are not at fixed
* location because those Win16 programs that do not use any real mode
* code have protected NULL pointer catching block at low linear memory
* and interrupt vectors have been moved to another location.
*/
static FARPROC16* DOSVM_GetRMVector( BYTE intnum )
{
LDT_ENTRY entry;
FARPROC16 proc;
proc = GetProcAddress16( GetModuleHandle16( "KERNEL" ),
(LPCSTR)(ULONG_PTR)183 );
wine_ldt_get_entry( LOWORD(proc), &entry );
return (FARPROC16*)wine_ldt_get_base( &entry ) + intnum;
}
/**********************************************************************
@ -224,40 +200,13 @@ BOOL DOSVM_EmulateInterruptPM( CONTEXT *context, BYTE intnum )
DOSMEM_InitDosMemory();
if (context->SegCs == DOSVM_dpmi_segments->dpmi_sel)
{
DOSVM_BuildCallFrame( context,
DOSVM_IntProcRelay,
DOSVM_RawModeSwitchHandler );
}
else if (context->SegCs == DOSVM_dpmi_segments->relay_code_sel)
if (context->SegCs == DOSVM_dpmi_segments->relay_code_sel)
{
/*
* This must not be called using DOSVM_BuildCallFrame.
*/
DOSVM_RelayHandler( context );
}
else if (context->SegCs == DOSVM_dpmi_segments->int48_sel)
{
/* Restore original flags stored into the stack by the caller. */
DWORD *stack = CTX_SEG_OFF_TO_LIN(context,
context->SegSs, context->Esp);
context->EFlags = stack[2];
if (intnum != context->Eip / DOSVM_STUB_PM48)
WARN( "interrupt stub has been modified "
"(interrupt is %02x, interrupt stub is %02x)\n",
intnum, context->Eip/DOSVM_STUB_PM48 );
TRACE( "builtin interrupt %02x has been branched to\n", intnum );
if (intnum == 0x25 || intnum == 0x26)
DOSVM_PushFlags( context, TRUE, TRUE );
DOSVM_BuildCallFrame( context,
DOSVM_IntProcRelay,
DOSVM_GetBuiltinHandler(intnum) );
}
else if (context->SegCs == DOSVM_dpmi_segments->int16_sel)
{
/* Restore original flags stored into the stack by the caller. */
@ -304,103 +253,39 @@ BOOL DOSVM_EmulateInterruptPM( CONTEXT *context, BYTE intnum )
*/
void DOSVM_HardwareInterruptPM( CONTEXT *context, BYTE intnum )
{
if(DOSVM_IsDos32())
FARPROC16 addr = DOSVM_GetPMHandler16( intnum );
if (SELECTOROF(addr) == DOSVM_dpmi_segments->int16_sel)
{
FARPROC48 addr = DOSVM_GetPMHandler48( intnum );
if (addr.selector == DOSVM_dpmi_segments->int48_sel)
{
TRACE( "builtin interrupt %02x has been invoked "
"(through vector %02x)\n",
addr.offset / DOSVM_STUB_PM48, intnum );
TRACE( "builtin interrupt %02x has been invoked "
"(through vector %02x)\n",
OFFSETOF(addr)/DOSVM_STUB_PM16, intnum );
if (intnum == 0x25 || intnum == 0x26)
DOSVM_PushFlags( context, TRUE, FALSE );
if (intnum == 0x25 || intnum == 0x26)
DOSVM_PushFlags( context, FALSE, FALSE );
DOSVM_BuildCallFrame( context,
DOSVM_IntProcRelay,
DOSVM_GetBuiltinHandler(
addr.offset/DOSVM_STUB_PM48 ) );
}
else
{
DWORD *stack;
TRACE( "invoking hooked interrupt %02x at %04x:%08x\n",
intnum, addr.selector, addr.offset );
/* Push the flags and return address on the stack */
stack = CTX_SEG_OFF_TO_LIN(context, context->SegSs, context->Esp);
*(--stack) = context->EFlags;
*(--stack) = context->SegCs;
*(--stack) = context->Eip;
context->Esp += -12;
/* Jump to the interrupt handler */
context->SegCs = addr.selector;
context->Eip = addr.offset;
}
DOSVM_BuildCallFrame( context,
DOSVM_IntProcRelay,
DOSVM_GetBuiltinHandler(
OFFSETOF(addr)/DOSVM_STUB_PM16 ) );
}
else
{
FARPROC16 addr = DOSVM_GetPMHandler16( intnum );
TRACE( "invoking hooked interrupt %02x at %04x:%04x\n",
intnum, SELECTOROF(addr), OFFSETOF(addr) );
if (SELECTOROF(addr) == DOSVM_dpmi_segments->int16_sel)
{
TRACE( "builtin interrupt %02x has been invoked "
"(through vector %02x)\n",
OFFSETOF(addr)/DOSVM_STUB_PM16, intnum );
/* Push the flags and return address on the stack */
PUSH_WORD16( context, LOWORD(context->EFlags) );
PUSH_WORD16( context, context->SegCs );
PUSH_WORD16( context, LOWORD(context->Eip) );
if (intnum == 0x25 || intnum == 0x26)
DOSVM_PushFlags( context, FALSE, FALSE );
DOSVM_BuildCallFrame( context,
DOSVM_IntProcRelay,
DOSVM_GetBuiltinHandler(
OFFSETOF(addr)/DOSVM_STUB_PM16 ) );
}
else
{
TRACE( "invoking hooked interrupt %02x at %04x:%04x\n",
intnum, SELECTOROF(addr), OFFSETOF(addr) );
/* Push the flags and return address on the stack */
PUSH_WORD16( context, LOWORD(context->EFlags) );
PUSH_WORD16( context, context->SegCs );
PUSH_WORD16( context, LOWORD(context->Eip) );
/* Jump to the interrupt handler */
context->SegCs = HIWORD(addr);
context->Eip = LOWORD(addr);
}
/* Jump to the interrupt handler */
context->SegCs = HIWORD(addr);
context->Eip = LOWORD(addr);
}
}
/**********************************************************************
* DOSVM_GetRMHandler
*
* Return the real mode interrupt vector for a given interrupt.
*/
FARPROC16 DOSVM_GetRMHandler( BYTE intnum )
{
return *DOSVM_GetRMVector( intnum );
}
/**********************************************************************
* DOSVM_SetRMHandler
*
* Set the real mode interrupt handler for a given interrupt.
*/
void DOSVM_SetRMHandler( BYTE intnum, FARPROC16 handler )
{
TRACE("Set real mode interrupt vector %02x <- %04x:%04x\n",
intnum, HIWORD(handler), LOWORD(handler) );
*DOSVM_GetRMVector( intnum ) = handler;
}
/**********************************************************************
* DOSVM_GetPMHandler16
*
@ -496,37 +381,6 @@ void DOSVM_SetPMHandler16( BYTE intnum, FARPROC16 handler )
}
/**********************************************************************
* DOSVM_GetPMHandler48
*
* Return the protected mode interrupt vector for a given interrupt.
* Used to get 48-bit pointer for 32-bit interrupt handlers in DPMI32.
*/
FARPROC48 DOSVM_GetPMHandler48( BYTE intnum )
{
if (!DOSVM_Vectors48[intnum].selector)
{
DOSVM_Vectors48[intnum].selector = DOSVM_dpmi_segments->int48_sel;
DOSVM_Vectors48[intnum].offset = DOSVM_STUB_PM48 * intnum;
}
return DOSVM_Vectors48[intnum];
}
/**********************************************************************
* DOSVM_SetPMHandler48
*
* Set the protected mode interrupt handler for a given interrupt.
* Used to set 48-bit pointer for 32-bit interrupt handlers in DPMI32.
*/
void DOSVM_SetPMHandler48( BYTE intnum, FARPROC48 handler )
{
TRACE("Set 32-bit protected mode interrupt vector %02x <- %04x:%08x\n",
intnum, handler.selector, handler.offset );
DOSVM_Vectors48[intnum] = handler;
}
/**********************************************************************
* DOSVM_CallBuiltinHandler
*