130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
/*++ BUILD Version: 0001
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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X86PC.H
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Abstract:
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This file contains macros, function prototypes, and externs for the
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x86 emulator NT version of SoftPC v3.0.
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Author:
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Dave Hastings (daveh) 4-11-91
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Revision History:
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Jeff Parsons (jeffpar) 14-May-1991
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Essentially copied this file from V86PC.H, except that I had to define
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X86CONTEXT as the x86-compatible version of CONTEXT.
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*/
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// Define the size of the 80387 save area, which is in the context frame.
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#define SIZE_OF_80387_ENVIRONMENT 108
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#define SIZE_OF_80387_REGISTERS 80
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typedef struct _FLOATING_SAVE_AREA {
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ULONG ControlWord;
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ULONG StatusWord;
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ULONG TagWord;
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ULONG ErrorOffset;
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ULONG ErrorSelector;
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ULONG DataOffset;
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ULONG DataSelector;
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UCHAR RegisterArea[SIZE_OF_80387_REGISTERS];
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} FLOATING_SAVE_AREA;
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typedef FLOATING_SAVE_AREA *PFLOATING_SAVE_AREA;
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// x86 Context Frame (copied from nti386.h)
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// The layout of the record conforms to a standard call frame.
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typedef struct _X86CONTEXT {
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// The flags values within this flag control the contents of
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// a CONTEXT record.
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// If the context record is used as an input parameter, then
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// for each portion of the context record controlled by a flag
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// whose value is set, it is assumed that that portion of the
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// context record contains valid context. If the context record
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// is being used to modify a threads context, then only that
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// portion of the threads context will be modified.
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// If the context record is used as an IN OUT parameter to capture
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// the context of a thread, then only those portions of the thread's
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// context corresponding to set flags will be returned.
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// The context record is never used as an OUT only parameter.
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ULONG ContextFlags;
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// This section is specified/returned if CONTEXT_DEBUG_REGISTERS is
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// set in ContextFlags. Note that CONTEXT_DEBUG_REGISTERS is NOT
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// included in CONTEXT_FULL.
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ULONG Dr0;
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ULONG Dr1;
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ULONG Dr2;
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ULONG Dr3;
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ULONG Dr6;
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ULONG Dr7;
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// This section is specified/returned if the
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// ContextFlags word contians the flag CONTEXT_FLOATING_POINT.
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FLOATING_SAVE_AREA FloatSave;
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// This section is specified/returned if the
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// ContextFlags word contians the flag CONTEXT_SEGMENTS.
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ULONG SegGs;
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ULONG SegFs;
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ULONG SegEs;
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ULONG SegDs;
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// This section is specified/returned if the
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// ContextFlags word contians the flag CONTEXT_INTEGER.
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ULONG Edi;
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ULONG Esi;
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ULONG Ebx;
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ULONG Edx;
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ULONG Ecx;
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ULONG Eax;
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// This section is specified/returned if the
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// ContextFlags word contians the flag CONTEXT_CONTROL.
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ULONG Ebp;
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ULONG Eip;
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ULONG SegCs; // MUST BE SANITIZED
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ULONG EFlags; // MUST BE SANITIZED
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ULONG Esp;
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ULONG SegSs;
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} X86CONTEXT, *PX86CONTEXT;
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