include/winnt.h

/*
 * Win32 definitions for Windows NT
 *
 * Copyright 1996 Alexandre Julliard
 */

#ifndef __WINE_WINNT_H
#define __WINE_WINNT_H

#include "wintypes.h"

/* Heap flags */
#define HEAP_NO_SERIALIZE               0x00000001
#define HEAP_GROWABLE                   0x00000002
#define HEAP_GENERATE_EXCEPTIONS        0x00000004
#define HEAP_ZERO_MEMORY                0x00000008
#define HEAP_REALLOC_IN_PLACE_ONLY      0x00000010
#define HEAP_TAIL_CHECKING_ENABLED      0x00000020
#define HEAP_FREE_CHECKING_ENABLED      0x00000040
#define HEAP_DISABLE_COALESCE_ON_FREE   0x00000080
#define HEAP_CREATE_ALIGN_16            0x00010000
#define HEAP_CREATE_ENABLE_TRACING      0x00020000
#define HEAP_WINE_SEGPTR                0x01000000  /* Not a Win32 flag */
#define HEAP_WINE_CODESEG               0x02000000  /* Not a Win32 flag */

/* The Win32 register context */

#define CONTEXT_i386      0x00010000
#define CONTEXT_i486      CONTEXT_i386
#define CONTEXT_CONTROL   (CONTEXT_i386 | 0x0001) /* SS:SP, CS:IP, FLAGS, BP */
#define CONTEXT_INTEGER   (CONTEXT_i386 | 0x0002) /* AX, BX, CX, DX, SI, DI */
#define CONTEXT_SEGMENTS  (CONTEXT_i386 | 0x0004) /* DS, ES, FS, GS */
#define CONTEXT_FLOATING_POINT  (CONTEXT_i386 | 0x0008L) /* 387 state */
#define CONTEXT_DEBUG_REGISTERS (CONTEXT_i386 | 0x0010L) /* DB 0-3,6,7 */
#define CONTEXT_FULL (CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS)

#define SIZE_OF_80387_REGISTERS      80

typedef struct
{
    DWORD   ControlWord;
    DWORD   StatusWord;
    DWORD   TagWord;    
    DWORD   ErrorOffset;
    DWORD   ErrorSelector;
    DWORD   DataOffset;
    DWORD   DataSelector;    
    BYTE    RegisterArea[SIZE_OF_80387_REGISTERS];
    DWORD   Cr0NpxState;
} FLOATING_SAVE_AREA;

typedef struct
{
    DWORD   ContextFlags;

    /* These are selected by CONTEXT_DEBUG_REGISTERS */
    DWORD   Dr0;
    DWORD   Dr1;
    DWORD   Dr2;
    DWORD   Dr3;
    DWORD   Dr6;
    DWORD   Dr7;

    /* These are selected by CONTEXT_FLOATING_POINT */
    FLOATING_SAVE_AREA FloatSave;

    /* These are selected by CONTEXT_SEGMENTS */
    DWORD   SegGs;
    DWORD   SegFs;
    DWORD   SegEs;
    DWORD   SegDs;    

    /* These are selected by CONTEXT_INTEGER */
    DWORD   Edi;
    DWORD   Esi;
    DWORD   Ebx;
    DWORD   Edx;    
    DWORD   Ecx;
    DWORD   Eax;

    /* These are selected by CONTEXT_CONTROL */
    DWORD   Ebp;    
    DWORD   Eip;
    DWORD   SegCs;
    DWORD   EFlags;
    DWORD   Esp;
    DWORD   SegSs;
} CONTEXT, *PCONTEXT;


#ifdef __WINE__

/* Macros for easier access to context registers */

#define EAX_reg(context)     ((context)->Eax)
#define EBX_reg(context)     ((context)->Ebx)
#define ECX_reg(context)     ((context)->Ecx)
#define EDX_reg(context)     ((context)->Edx)
#define ESI_reg(context)     ((context)->Esi)
#define EDI_reg(context)     ((context)->Edi)
#define EBP_reg(context)     ((context)->Ebp)

#define CS_reg(context)      ((context)->SegCs)
#define DS_reg(context)      ((context)->SegDs)
#define ES_reg(context)      ((context)->SegEs)
#define FS_reg(context)      ((context)->SegFs)
#define GS_reg(context)      ((context)->SegGs)
#define SS_reg(context)      ((context)->SegSs)

#define EFL_reg(context)     ((context)->EFlags)
#define EIP_reg(context)     ((context)->Eip)
#define ESP_reg(context)     ((context)->Esp)

#define AX_reg(context)      (*(WORD*)&EAX_reg(context))
#define BX_reg(context)      (*(WORD*)&EBX_reg(context))
#define CX_reg(context)      (*(WORD*)&ECX_reg(context))
#define DX_reg(context)      (*(WORD*)&EDX_reg(context))
#define SI_reg(context)      (*(WORD*)&ESI_reg(context))
#define DI_reg(context)      (*(WORD*)&EDI_reg(context))
#define BP_reg(context)      (*(WORD*)&EBP_reg(context))

#define AL_reg(context)      (*(BYTE*)&EAX_reg(context))
#define AH_reg(context)      (*((BYTE*)&EAX_reg(context)+1))
#define BL_reg(context)      (*(BYTE*)&EBX_reg(context))
#define BH_reg(context)      (*((BYTE*)&EBX_reg(context)+1))
#define CL_reg(context)      (*(BYTE*)&ECX_reg(context))
#define CH_reg(context)      (*((BYTE*)&ECX_reg(context)+1))
#define DL_reg(context)      (*(BYTE*)&EDX_reg(context))
#define DH_reg(context)      (*((BYTE*)&EDX_reg(context)+1))
                            
#define IP_reg(context)      (*(WORD*)&EIP_reg(context))
#define SP_reg(context)      (*(WORD*)&ESP_reg(context))
                            
#define FL_reg(context)      (*(WORD*)&EFL_reg(context))

#define SET_CFLAG(context)   (EFL_reg(context) |= 0x0001)
#define RESET_CFLAG(context) (EFL_reg(context) &= 0xfffffffe)

#endif  /* __WINE__ */

#endif  /* __WINE_WINNT_H */