| /* |
| * DPMI 0.9 emulation |
| * |
| * Copyright 1995 Alexandre Julliard |
| */ |
| |
| #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" |
| #include "selectors.h" |
| #include "thread.h" |
| #include "stackframe.h" |
| #include "callback.h" |
| |
| #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive()) |
| |
| void CreateBPB(int drive, BYTE *data, BOOL16 limited); /* 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; |
| |
| |
| |
| typedef struct tagRMCB { |
| DWORD address; |
| struct tagRMCB *next; |
| |
| } RMCB; |
| |
| static RMCB *FirstRMCB = NULL; |
| |
| /********************************************************************** |
| * 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], FALSE); |
| 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 ); |
| } |
| |
| |
| static void CallRMProcFar( CONTEXT *context ) |
| { |
| REALMODECALL *p = (REALMODECALL *)PTR_SEG_OFF_TO_LIN( ES_reg(context), DI_reg(context) ); |
| CONTEXT context16; |
| THDB *thdb = THREAD_Current(); |
| WORD argsize, sel; |
| LPVOID addr; |
| SEGPTR seg_addr; |
| |
| TRACE(int31, "RealModeCall: EAX=%08lx EBX=%08lx ECX=%08lx EDX=%08lx\n", |
| p->eax, p->ebx, p->ecx, p->edx); |
| TRACE(int31, " ESI=%08lx EDI=%08lx ES=%04x DS=%04x CS:IP=%04x:%04x, %d WORD arguments\n", |
| p->esi, p->edi, p->es, p->ds, p->cs, p->ip, CX_reg(context) ); |
| |
| 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); |
| |
| addr = DOSMEM_MapRealToLinear(MAKELONG(p->ip, p->cs)); |
| sel = SELECTOR_AllocBlock( addr, 0x10000, SEGMENT_CODE, FALSE, FALSE ); |
| seg_addr = PTR_SEG_OFF_TO_SEGPTR( sel, 0 ); |
| |
| CS_reg(&context16) = HIWORD(seg_addr); |
| IP_reg(&context16) = LOWORD(seg_addr); |
| EBP_reg(&context16) = OFFSETOF( thdb->cur_stack ) |
| + (WORD)&((STACK16FRAME*)0)->bp; |
| |
| argsize = CX_reg(context)*sizeof(WORD); |
| memcpy( ((LPBYTE)THREAD_STACK16(thdb))-argsize, |
| (LPBYTE)PTR_SEG_OFF_TO_LIN(SS_reg(context), SP_reg(context))+6, argsize ); |
| |
| Callbacks->CallRegisterShortProc(&context16, argsize); |
| |
| UnMapLS(seg_addr); |
| INT_SetRealModeContext(p, &context16); |
| } |
| |
| |
| void WINAPI RMCallbackProc( FARPROC16 pmProc, REALMODECALL *rmc ) |
| { |
| CONTEXT ctx; |
| INT_GetRealModeContext(rmc, &ctx); |
| Callbacks->CallRegisterShortProc(&ctx, 0); |
| } |
| |
| |
| static void AllocRMCB( CONTEXT *context ) |
| { |
| RMCB *NewRMCB = HeapAlloc(GetProcessHeap(), 0, sizeof(RMCB)); |
| REALMODECALL *p = (REALMODECALL *)PTR_SEG_OFF_TO_LIN( ES_reg(context), DI_reg(context) ); |
| UINT16 uParagraph; |
| |
| FIXME(int31, "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) ); |
| |
| if (NewRMCB) |
| { |
| LPVOID RMCBmem = DOSMEM_GetBlock(20, &uParagraph); |
| LPBYTE p = RMCBmem; |
| |
| *p++ = 0x68; /* pushl */ |
| *(FARPROC16 *)p = |
| PTR_SEG_OFF_TO_LIN(ES_reg(context), SI_reg(context)); /* pmode proc to call */ |
| p+=4; |
| *p++ = 0x68; /* pushl */ |
| *(LPVOID *)p = |
| PTR_SEG_OFF_TO_LIN(ES_reg(context), DI_reg(context)); |
| p+=4; |
| *p++ = 0x9a; /* lcall */ |
| *(FARPROC16 *)p = (FARPROC16)RMCallbackProc; /* FIXME ? */ |
| p+=4; |
| GET_CS(*(WORD *)p); |
| p+=2; |
| *p++=0xc3; /* retf */ |
| NewRMCB->address = MAKELONG(0, uParagraph); |
| NewRMCB->next = FirstRMCB; |
| FirstRMCB = NewRMCB; |
| CX_reg(context) = uParagraph; |
| DX_reg(context) = 0; |
| } |
| else |
| { |
| AX_reg(context) = 0x8015; /* callback unavailable */ |
| SET_CFLAG(context); |
| } |
| } |
| |
| |
| static void FreeRMCB( CONTEXT *context ) |
| { |
| RMCB *CurrRMCB = FirstRMCB; |
| RMCB *PrevRMCB = NULL; |
| |
| FIXME(int31, "callback address: %04x:%04x\n", |
| CX_reg(context), DX_reg(context)); |
| |
| while (CurrRMCB && (CurrRMCB->address != MAKELONG(DX_reg(context), CX_reg(context)))) |
| { |
| PrevRMCB = CurrRMCB; |
| CurrRMCB = CurrRMCB->next; |
| } |
| if (CurrRMCB) |
| { |
| if (PrevRMCB) |
| PrevRMCB->next = CurrRMCB->next; |
| else |
| FirstRMCB = CurrRMCB->next; |
| DOSMEM_FreeBlock(DOSMEM_MapRealToLinear(CurrRMCB->address)); |
| HeapFree(GetProcessHeap(), 0, CurrRMCB); |
| } |
| else |
| { |
| AX_reg(context) = 0x8024; /* invalid callback address */ |
| SET_CFLAG(context); |
| } |
| } |
| |
| |
| /********************************************************************** |
| * 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 */ |
| TRACE(int31,"allocate LDT descriptors (%d)\n",CX_reg(context)); |
| if (!(AX_reg(context) = AllocSelectorArray( CX_reg(context) ))) |
| { |
| TRACE(int31,"failed\n"); |
| AX_reg(context) = 0x8011; /* descriptor unavailable */ |
| SET_CFLAG(context); |
| } |
| TRACE(int31,"success, array starts at 0x%04x\n",AX_reg(context)); |
| break; |
| |
| case 0x0001: /* Free LDT descriptor */ |
| TRACE(int31,"free LDT descriptor (0x%04x)\n",BX_reg(context)); |
| 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 */ |
| TRACE(int31,"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: |
| AX_reg(context) = DOSMEM_AllocSelector(BX_reg(context)); |
| break; |
| } |
| if (entryPoint) |
| AX_reg(context) = LOWORD(NE_GetEntryPoint( |
| GetModuleHandle16( "KERNEL" ), |
| entryPoint )); |
| } |
| break; |
| |
| case 0x0003: /* Get next selector increment */ |
| TRACE(int31,"get selector increment (__AHINCR)\n"); |
| AX_reg(context) = __AHINCR; |
| break; |
| |
| case 0x0004: /* Lock selector (not supported) */ |
| FIXME(int31,"lock selector not supported\n"); |
| AX_reg(context) = 0; /* FIXME: is this a correct return value? */ |
| break; |
| |
| case 0x0005: /* Unlock selector (not supported) */ |
| FIXME(int31,"unlock selector not supported\n"); |
| AX_reg(context) = 0; /* FIXME: is this a correct return value? */ |
| break; |
| |
| case 0x0006: /* Get selector base address */ |
| TRACE(int31,"get selector base address (0x%04x)\n",BX_reg(context)); |
| 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 */ |
| TRACE(int31,"set selector base address (0x%04x,0x%08lx)\n",BX_reg(context),MAKELONG(DX_reg(context),CX_reg(context))); |
| SetSelectorBase( BX_reg(context), |
| MAKELONG( DX_reg(context), CX_reg(context) ) ); |
| break; |
| |
| case 0x0008: /* Set selector limit */ |
| TRACE(int31,"set selector limit (0x%04x,0x%08lx)\n",BX_reg(context),MAKELONG(DX_reg(context),CX_reg(context))); |
| SetSelectorLimit( BX_reg(context), |
| MAKELONG( DX_reg(context), CX_reg(context) ) ); |
| break; |
| |
| case 0x0009: /* Set selector access rights */ |
| TRACE(int31,"set selector access rights(0x%04x,0x%04x)\n",BX_reg(context),CX_reg(context)); |
| SelectorAccessRights( BX_reg(context), 1, CX_reg(context) ); |
| break; |
| |
| case 0x000a: /* Allocate selector alias */ |
| TRACE(int31,"allocate selector alias (0x%04x)\n",BX_reg(context)); |
| if (!(AX_reg(context) = AllocCStoDSAlias( BX_reg(context) ))) |
| { |
| AX_reg(context) = 0x8011; /* descriptor unavailable */ |
| SET_CFLAG(context); |
| } |
| break; |
| |
| case 0x000b: /* Get descriptor */ |
| TRACE(int31,"get descriptor (0x%04x)\n",BX_reg(context)); |
| { |
| 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 */ |
| TRACE(int31,"set descriptor (0x%04x)\n",BX_reg(context)); |
| { |
| 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 */ |
| FIXME(int31,"allocate descriptor (0x%04x), stub!\n",BX_reg(context)); |
| 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 */ |
| TRACE(int31,"get protected mode interrupt handler (0x%02x), stub!\n",BL_reg(context)); |
| 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 */ |
| TRACE(int31,"set protected mode interrupt handler (0x%02x,0x%08lx), stub!\n",BL_reg(context),PTR_SEG_OFF_TO_LIN(CX_reg(context),DX_reg(context))); |
| 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 */ |
| CallRMProcFar( 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 */ |
| AllocRMCB( context ); |
| break; |
| |
| case 0x0304: /* Free Real Mode Callback Address */ |
| FreeRMCB( context ); |
| break; |
| |
| case 0x0400: /* Get DPMI version */ |
| TRACE(int31,"get DPMI version\n"); |
| { |
| 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 */ |
| TRACE(int31,"get free memory information\n"); |
| { |
| 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 */ |
| TRACE(int31,"allocate memory block (%ld)\n",MAKELONG(CX_reg(context),BX_reg(context))); |
| 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 */ |
| TRACE(int31,"free memory block (0x%08lx)\n",MAKELONG(DI_reg(context),SI_reg(context))); |
| VirtualFree((void *)MAKELONG(DI_reg(context), SI_reg(context)), 0, MEM_RELEASE); |
| break; |
| |
| case 0x0503: /* Resize memory block */ |
| TRACE(int31,"resize memory block (0x%08lx,%ld)\n",MAKELONG(DI_reg(context),SI_reg(context)),MAKELONG(CX_reg(context),BX_reg(context))); |
| 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 */ |
| FIXME(int31,"lock linear region unimplemented\n"); |
| break; /* Just ignore it */ |
| |
| case 0x0601: /* Unlock linear region */ |
| FIXME(int31,"unlock linear region unimplemented\n"); |
| break; /* Just ignore it */ |
| |
| case 0x0602: /* Unlock real-mode region */ |
| FIXME(int31,"unlock realmode region unimplemented\n"); |
| break; /* Just ignore it */ |
| |
| case 0x0603: /* Lock real-mode region */ |
| FIXME(int31,"lock realmode region unimplemented\n"); |
| break; /* Just ignore it */ |
| |
| case 0x0604: /* Get page size */ |
| TRACE(int31,"get pagesize\n"); |
| BX_reg(context) = 0; |
| CX_reg(context) = VIRTUAL_GetPageSize(); |
| break; |
| |
| case 0x0702: /* Mark page as demand-paging candidate */ |
| FIXME(int31,"mark page as demand-paging candidate\n"); |
| break; /* Just ignore it */ |
| |
| case 0x0703: /* Discard page contents */ |
| FIXME(int31,"discard page contents\n"); |
| break; /* Just ignore it */ |
| |
| case 0x0800: /* Physical address mapping */ |
| FIXME(int31,"map real to linear (0x%08lx)\n",MAKELONG(CX_reg(context),BX_reg(context))); |
| 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; |
| } |
| } |
