114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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dpmi.h
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Abstract:
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This file contains code to implement support for the DPMI bops
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Author:
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Dave Hastings (daveh) 27-Jun-1991
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Revision History:
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--*/
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/* ASM
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ifdef WOW_x86
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include vint.inc
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endif
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include bop.inc
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*/
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#define LDT_SIZE 0x1FFF
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// DPMI Bop Sub Functions
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#define InitDosxRM 0
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#define InitDosx 1
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#define InitLDT 2
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#define GetFastBopAddress 3
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#define InitIDT 4
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#define InitExceptionHandlers 5
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#define InitApp 6
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#define TerminateApp 7
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#define DpmiInUse 8
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#define DpmiNoLongerInUse 9
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#define DPMISwitchToProtectedMode 10 /* prefix necessary */
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#define DPMISwitchToRealMode 11
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#define SetAltRegs 12
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#define IntHandlerIret 13
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#define IntHandlerIretd 14
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#define FaultHandlerIret 15
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#define FaultHandlerIretd 16
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#define DpmiUnhandledException 17
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#define RMCallBackCall 18
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#define ReflectIntrToPM 19
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#define ReflectIntrToV86 20
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#define InitPmStackInfo 21
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#define VcdPmSvcCall32 22
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#define SetDescriptorTableEntries 23
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#define ResetLDTUserBase 24
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#define XlatInt21Call 25
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#define Int31Entry 26
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#define Int31Call 27
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#define HungAppIretAndExit 28
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#define MAX_DPMI_BOP_FUNC HungAppIretAndExit + 1
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/* ASM
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DPMIBOP macro SubFun
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BOP BOP_DPMI
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db SubFun
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endm
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*/
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//
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// Definitions for real mode call backs
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//
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/* XLATOFF */
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typedef struct _RMCB_INFO {
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BOOL bInUse;
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USHORT StackSel;
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USHORT StrucSeg;
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ULONG StrucOffset;
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USHORT ProcSeg;
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ULONG ProcOffset;
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} RMCB_INFO;
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// 16 is the minimum defined in the dpmi spec
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#define MAX_RMCBS 16
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typedef struct _MEM_DPMI {
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PVOID Address;
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ULONG Length;
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struct _MEM_DPMI * Prev;
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struct _MEM_DPMI * Next;
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WORD Owner;
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WORD Sel;
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WORD SelCount;
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} MEM_DPMI, *PMEM_DPMI;
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VOID
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SetShadowDescriptorEntries(
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USHORT SelStart,
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USHORT SelCount
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);
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/* XLATON */
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