152 lines
5.5 KiB
C++
152 lines
5.5 KiB
C++
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/* Copyright (C) 1986-2001 by Digital Mars. $Revision: 1.1.1.1 $ */
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#if __SC__ || __RCC__
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#pragma once
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#endif
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#ifndef __DPMI_H
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#define __DPMI_H 1
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#if __cplusplus
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extern "C"
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{
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#endif
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#pragma pack()
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typedef struct TINFO
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{
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unsigned short BufferSize;
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void __far * (*RealModeSaveFunction)(unsigned short Operation,void __far *Buffer);
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void __far * (*PModeSaveFunction)(unsigned short Operation,void __far *Buffer);
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}
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Info_t;
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typedef struct TMEMINFO
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{
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unsigned long LargestContiguousBlock;
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unsigned long MaxunloackedPageAllocation;
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unsigned long MaxLoackedPageAllocation;
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unsigned long PagesOfLinearSpace;
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unsigned long TotalUnlockedPages;
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unsigned long TotalFreePages;
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unsigned long TotalPhysicalPages;
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unsigned long FreePagesOfLinearSpace;
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unsigned long SizeOfPagingPartition;
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unsigned long Reserved[3];
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}
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MemInfo_t;
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typedef struct TSWITCHTABLE
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{
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unsigned short newDS;
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unsigned short newES;
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unsigned short newSS;
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unsigned short newCS;
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unsigned long newIP; /* upper 16 bits invalid in 16-bit mode */
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unsigned long newSP; /* upper 16 bits invalid in 16-bit mode */
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}
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SwitchTable_t;
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typedef struct TSWITCHFUNCTION
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{
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void __far * (*RealModeSwitchFunction)(void __far *SwitchTable);
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void __far * (*PModeSwitchFunction)(void __far *SwitchTable);
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}
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SwitchFunction_t;
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typedef struct TENVIRON
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{
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unsigned char MajorVersion;
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unsigned char MinorVersion;
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unsigned short Flags;
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unsigned char ProcessorType;
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unsigned char MasterPICInterrupt;
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unsigned char SlavePICInterrupt;
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}
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Environ_t;
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typedef struct TLINEAR
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{
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unsigned long Handle;
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unsigned long LinearAddress;
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}
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Linear_T;
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#pragma pack(__DEFALIGN)
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/* descriptor management services */
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short dpmi_IsRealMode(void);
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short dpmi_AllocLDTDescriptors(unsigned short count);
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short dpmi_SegToDescriptor(unsigned short segment);
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short dpmi_FreeDescriptor(unsigned short segment);
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short dpmi_GetNextDescriptorIncrement(void);
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void __far * dpmi_GetBaseAddress(unsigned short segment);
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short dpmi_SetBaseAddress(unsigned short segment,void __far *linearaddr);
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short dpmi_SetSegLimit(unsigned short segment,unsigned long linearlen);
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short dpmi_SetDescriptorRights(unsigned short segment,unsigned short rights);
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short dpmi_CreateCodeSegAlias(unsigned short segment);
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void __far * dpmi_GetDescriptor(unsigned short segment,void __far *descriptortable);
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void __far * dpmi_SetDescriptor(unsigned short segment,void __far *descriptortable);
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short dpmi_AllocThisLDTDescriptor(unsigned short segment);
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/* dos memory management services */
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short dpmi_DOSAlloc(unsigned short paragraphs,void __far *results);
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short dpmi_DOSFree(unsigned short segment);
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short dpmi_DOSRealloc(unsigned short segment,unsigned short paragraphs,void __far *results);
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/* interrupt services */
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void __far * dpmi_GetRealModeVector(unsigned short vector);
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short dpmi_SetRealModeVector(unsigned short vector,void __far *handler);
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void __far * dpmi_GetExceptionHandler(unsigned short exception);
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short dpmi_SetExceptionHandler(unsigned short exception,void __far *handler);
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void __far * dpmi_GetProtectedModeVector(unsigned short exception);
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short dpmi_SetProtectedModeVector(unsigned short exception,void __far *handler);
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/* translation services */
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void __far * dpmi_SimRealModeInterrupt(unsigned short vector,unsigned short flags,unsigned short commonstack,void __far *callstruct);
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void __far * dpmi_CallRealModeProcWithFarRet(unsigned short flags,unsigned short commonstack,void __far *callstruct);
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void __far * dpmi_CallRealModeProcWithIRet(unsigned short flags,unsigned short commonstack,void __far *callstruct);
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void __far * dpmi_RealModeCallBackAlloc(void __far *funcptr,void __far *callstruct);
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short dpmi_RealModeCallBackFree(void __far *realmodefuncptr);
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short dpmi_GetStateSaveRestoreInfo(void __far *statesavestruct);
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short dpmi_GetRawModeSwitchInfo(void __far *switchstruct);
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short dpmi_GetVersionInfo(void __far *versionstruct);
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short dpmi_GetFreeMemInfo(void __far *freememstruct);
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short dpmi_MemBlockAlloc(unsigned long size,void __far *newmemstruct);
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short dpmi_MemBlockFree(unsigned long memhandle);
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short dpmi_MemBlockRealloc(unsigned long size,unsigned long memhandle,void __far *newmemstruct);
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/* page locking services */
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short dpmi_LockLinearRegion(void __far *regionptr,unsigned long regionsize);
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short dpmi_UnlockLinearRegion(void __far *regionptr,unsigned long regionsize);
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short dpmi_LockRealModeRegion(void __far *regionptr,unsigned long regionsize);
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short dpmi_UnlockRealModeRegion(void __far *regionptr,unsigned long regionsize);
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unsigned long dpmi_IsPageSize(void);
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/* demand paging performance tuning */
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short dpmi_MarkAsDemandPage(void __far *regionptr,unsigned long regionsize);
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short dpmi_DiscardPage(void __far *regionptr,unsigned long regionsize);
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/* physical address mapping */
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short dpmi_IsLinearAddress(void __far *physicalptr,unsigned long regionsize);
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/* virtual interrupt state functions */
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short dpmi_DisableVirtualInterruptState(void);
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short dpmi_EnableVirtualInterruptState(void);
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short dpmi_IsVirtualIntteruptState(void);
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/* vendor specific extensions */
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void __far * dpmi_GetVendorAPI(char __far *zstringvendorname);
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/* debug support */
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short dpmi_SetDebugWatchPoint(void __far *regionptr,short watchpointsize,short watchpointtype);
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short dpmi_ClearDebugWatchPoint(short watchpointhandle);
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short dpmi_IsDebugWatchPointState(short watchpointhandle);
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short dpmi_ResetDebugWatchPoint(short watchpointhandle);
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#if __cplusplus
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}
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#endif
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#endif
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