dlls/krnl386.exe16/dosexe.h

   1 /*
   2  * DOS EXE loader
   3  *
   4  * Copyright 1998 Ove Kåven
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_DOSEXE_H
  22 #define __WINE_DOSEXE_H
  23
  24 #include <stdarg.h>
  25 #include <sys/types.h>
  26
  27 #include "windef.h"
  28 #include "wine/windef16.h"
  29 #include "winbase.h"
  30 #include "winnt.h"     /* for PCONTEXT */
  31 #include "kernel16_private.h"
  32
  33 #define MAX_DOS_DRIVES  26
  34
  35 /* amount of space reserved for relay stack */
  36 #define DOSVM_RELAY_DATA_SIZE 4096
  37
  38 typedef void (*DOSRELAY)(CONTEXT*,void*);
  39 typedef void (WINAPI *INTPROC)(CONTEXT*);
  40
  41 extern WORD DOSVM_psp DECLSPEC_HIDDEN;     /* psp of current DOS task */
  42 extern WORD int16_sel DECLSPEC_HIDDEN;
  43
  44 #define ADD_LOWORD(dw,val)  ((dw) = ((dw) & 0xffff0000) | LOWORD((DWORD)(dw)+(val)))
  45
  46 /* NOTE: Interrupts might get called from four modes: real mode, 16-bit,
  47  *       32-bit segmented (DPMI32) and 32-bit linear (via DeviceIoControl).
  48  *       For automatic conversion of pointer
  49  *       parameters, interrupt handlers should use CTX_SEG_OFF_TO_LIN with
  50  *       the contents of a segment register as second and the contents of
  51  *       a *32-bit* general register as third parameter, e.g.
  52  *          CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EDX_reg(context) )
  53  *       This will generate a linear pointer in all three cases:
  54  *         Real-Mode:   Seg*16 + LOWORD(Offset)
  55  *         16-bit:      convert (Seg, LOWORD(Offset)) to linear
  56  *         32-bit segmented: convert (Seg, Offset) to linear
  57  *         32-bit linear:    use Offset as linear address (DeviceIoControl!)
  58  *
  59  *       Real-mode is recognized by checking the V86 bit in the flags register,
  60  *       32-bit linear mode is recognized by checking whether 'seg' is
  61  *       a system selector (0 counts also as 32-bit segment) and 32-bit
  62  *       segmented mode is recognized by checking whether 'seg' is 32-bit
  63  *       selector which is neither system selector nor zero.
  64  */
  65 #define CTX_SEG_OFF_TO_LIN(context,seg,off) (ldt_get_ptr((seg),(off)))
  66
  67 #define INT_BARF(context,num) \
  68     ERR( "int%x: unknown/not implemented parameters:\n" \
  69                      "int%x: AX %04x, BX %04x, CX %04x, DX %04x, " \
  70                      "SI %04x, DI %04x, DS %04x, ES %04x\n", \
  71              (num), (num), LOWORD((context)->Eax), LOWORD((context)->Ebx), \
  72              LOWORD((context)->Ecx), LOWORD((context)->Edx), LOWORD((context)->Esi), \
  73              LOWORD((context)->Edi), (WORD)(context)->SegDs, (WORD)(context)->SegEs )
  74
  75 /* pushing on stack in 16 bit needs segment wrap around */
  76 #define PUSH_WORD16(context,val) \
  77     *((WORD*)CTX_SEG_OFF_TO_LIN((context), \
  78         (context)->SegSs, ADD_LOWORD( context->Esp, -2 ) )) = (val)
  79
  80 /* Macros for easier access to i386 context registers */
  81
  82 #define AX_reg(context)      ((WORD)(context)->Eax)
  83 #define BX_reg(context)      ((WORD)(context)->Ebx)
  84 #define CX_reg(context)      ((WORD)(context)->Ecx)
  85 #define DX_reg(context)      ((WORD)(context)->Edx)
  86 #define SI_reg(context)      ((WORD)(context)->Esi)
  87 #define DI_reg(context)      ((WORD)(context)->Edi)
  88
  89 #define AL_reg(context)      ((BYTE)(context)->Eax)
  90 #define AH_reg(context)      ((BYTE)((context)->Eax >> 8))
  91 #define BL_reg(context)      ((BYTE)(context)->Ebx)
  92 #define BH_reg(context)      ((BYTE)((context)->Ebx >> 8))
  93 #define CL_reg(context)      ((BYTE)(context)->Ecx)
  94 #define CH_reg(context)      ((BYTE)((context)->Ecx >> 8))
  95 #define DL_reg(context)      ((BYTE)(context)->Edx)
  96 #define DH_reg(context)      ((BYTE)((context)->Edx >> 8))
  97
  98 #define SET_CFLAG(context)   ((context)->EFlags |= 0x0001)
  99 #define RESET_CFLAG(context) ((context)->EFlags &= ~0x0001)
 100 #define SET_ZFLAG(context)   ((context)->EFlags |= 0x0040)
 101 #define RESET_ZFLAG(context) ((context)->EFlags &= ~0x0040)
 102
 103 #define SET_AX(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xffff) | (WORD)(val)))
 104 #define SET_BX(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xffff) | (WORD)(val)))
 105 #define SET_CX(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xffff) | (WORD)(val)))
 106 #define SET_DX(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xffff) | (WORD)(val)))
 107 #define SET_SI(context,val)  ((void)((context)->Esi = ((context)->Esi & ~0xffff) | (WORD)(val)))
 108 #define SET_DI(context,val)  ((void)((context)->Edi = ((context)->Edi & ~0xffff) | (WORD)(val)))
 109
 110 #define SET_AL(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff) | (BYTE)(val)))
 111 #define SET_BL(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff) | (BYTE)(val)))
 112 #define SET_CL(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff) | (BYTE)(val)))
 113 #define SET_DL(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff) | (BYTE)(val)))
 114
 115 #define SET_AH(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff00) | (((BYTE)(val)) << 8)))
 116 #define SET_BH(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff00) | (((BYTE)(val)) << 8)))
 117 #define SET_CH(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff00) | (((BYTE)(val)) << 8)))
 118 #define SET_DH(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff00) | (((BYTE)(val)) << 8)))
 119
 120 #include <pshpack1.h>
 121
 122 typedef struct
 123 {
 124     WORD  Com1Addr;                  /* 00: COM1 I/O address */
 125     WORD  Com2Addr;                  /* 02: COM2 I/O address */
 126     WORD  Com3Addr;                  /* 04: COM3 I/O address */
 127     WORD  Com4Addr;                  /* 06: COM4 I/O address */
 128     WORD  Lpt1Addr;                  /* 08: LPT1 I/O address */
 129     WORD  Lpt2Addr;                  /* 0a: LPT2 I/O address */
 130     WORD  Lpt3Addr;                  /* 0c: LPT3 I/O address */
 131     WORD  Lpt4Addr;                  /* 0e: LPT4 I/O address */
 132     WORD  InstalledHardware;         /* 10: Installed hardware flags */
 133     BYTE  POSTstatus;                /* 12: Power-On Self Test status */
 134     WORD  MemSize;                   /* 13: Base memory size in Kb */
 135     WORD  unused1;                   /* 15: Manufacturing test scratch pad */
 136     BYTE  KbdFlags1;                 /* 17: Keyboard flags 1 */
 137     BYTE  KbdFlags2;                 /* 18: Keyboard flags 2 */
 138     BYTE  unused2;                   /* 19: Keyboard driver workspace */
 139     WORD  NextKbdCharPtr;            /* 1a: Next character in kbd buffer */
 140     WORD  FirstKbdCharPtr;           /* 1c: First character in kbd buffer */
 141     WORD  KbdBuffer[16];             /* 1e: Keyboard buffer */
 142     BYTE  DisketteStatus1;           /* 3e: Diskette recalibrate status */
 143     BYTE  DisketteStatus2;           /* 3f: Diskette motor status */
 144     BYTE  DisketteStatus3;           /* 40: Diskette motor timeout */
 145     BYTE  DisketteStatus4;           /* 41: Diskette last operation status */
 146     BYTE  DiskStatus[7];             /* 42: Disk status/command bytes */
 147     BYTE  VideoMode;                 /* 49: Video mode */
 148     WORD  VideoColumns;              /* 4a: Number of columns */
 149     WORD  VideoPageSize;             /* 4c: Video page size in bytes */
 150     WORD  VideoPageStartAddr;        /* 4e: Video page start address */
 151     BYTE  VideoCursorPos[16];        /* 50: Cursor position for 8 pages, column/row order */
 152     WORD  VideoCursorType;           /* 60: Video cursor type */
 153     BYTE  VideoCurPage;              /* 62: Video current page */
 154     WORD  VideoCtrlAddr;             /* 63: Video controller address */
 155     BYTE  VideoReg1;                 /* 65: Video mode select register */
 156     BYTE  VideoReg2;                 /* 66: Video CGA palette register */
 157     DWORD ResetEntry;                /* 67: Warm reset entry point */
 158     BYTE  LastIRQ;                   /* 6b: Last unexpected interrupt */
 159     DWORD Ticks;                     /* 6c: Ticks since midnight */
 160     BYTE  TicksOverflow;             /* 70: Timer overflow if past midnight */
 161     BYTE  CtrlBreakFlag;             /* 71: Ctrl-Break flag */
 162     WORD  ResetFlag;                 /* 72: POST Reset flag */
 163     BYTE  DiskOpStatus;              /* 74: Last hard-disk operation status */
 164     BYTE  NbHardDisks;               /* 75: Number of hard disks */
 165     BYTE  DiskCtrlByte;              /* 76: Disk control byte */
 166     BYTE  DiskIOPort;                /* 77: Disk I/O port offset */
 167     BYTE  LptTimeout[4];             /* 78: Timeouts for parallel ports */
 168     BYTE  ComTimeout[4];             /* 7c: Timeouts for serial ports */
 169     WORD  KbdBufferStart;            /* 80: Keyboard buffer start */
 170     WORD  KbdBufferEnd;              /* 82: Keyboard buffer end */
 171     BYTE  RowsOnScreenMinus1;        /* 84: EGA only */
 172     WORD  BytesPerChar;              /* 85: EGA only */
 173     BYTE  ModeOptions;               /* 87: EGA only */
 174     BYTE  FeatureBitsSwitches;       /* 88: EGA only */
 175     BYTE  VGASettings;               /* 89: VGA misc settings */
 176     BYTE  DisplayCombination;        /* 8A: VGA display combinations */
 177     BYTE  DiskDataRate;              /* 8B: Last disk data rate selected */
 178 } BIOSDATA;
 179
 180 #include <poppack.h>
 181
 182 /* Device driver header */
 183
 184 #include <pshpack1.h>
 185
 186 typedef struct
 187 {
 188     DWORD next_dev;
 189     WORD  attr;
 190     WORD  strategy;
 191     WORD  interrupt;
 192     char  name[8];
 193 } DOS_DEVICE_HEADER;
 194
 195 #include <poppack.h>
 196
 197 /* dosvm.c */
 198 extern void DOSVM_Exit( WORD retval ) DECLSPEC_HIDDEN;
 199
 200 /* dosmem.c */
 201 extern BIOSDATA *DOSVM_BiosData( void ) DECLSPEC_HIDDEN;
 202 extern void DOSVM_start_bios_timer(void) DECLSPEC_HIDDEN;
 203
 204 /* fpu.c */
 205 extern void WINAPI DOSVM_Int34Handler(CONTEXT*) DECLSPEC_HIDDEN;
 206 extern void WINAPI DOSVM_Int35Handler(CONTEXT*) DECLSPEC_HIDDEN;
 207 extern void WINAPI DOSVM_Int36Handler(CONTEXT*) DECLSPEC_HIDDEN;
 208 extern void WINAPI DOSVM_Int37Handler(CONTEXT*) DECLSPEC_HIDDEN;
 209 extern void WINAPI DOSVM_Int38Handler(CONTEXT*) DECLSPEC_HIDDEN;
 210 extern void WINAPI DOSVM_Int39Handler(CONTEXT*) DECLSPEC_HIDDEN;
 211 extern void WINAPI DOSVM_Int3aHandler(CONTEXT*) DECLSPEC_HIDDEN;
 212 extern void WINAPI DOSVM_Int3bHandler(CONTEXT*) DECLSPEC_HIDDEN;
 213 extern void WINAPI DOSVM_Int3cHandler(CONTEXT*) DECLSPEC_HIDDEN;
 214 extern void WINAPI DOSVM_Int3dHandler(CONTEXT*) DECLSPEC_HIDDEN;
 215 extern void WINAPI DOSVM_Int3eHandler(CONTEXT*) DECLSPEC_HIDDEN;
 216
 217 /* int15.c */
 218 extern void WINAPI DOSVM_Int15Handler(CONTEXT*) DECLSPEC_HIDDEN;
 219
 220 /* int21.c */
 221 extern void WINAPI DOSVM_Int21Handler(CONTEXT*) DECLSPEC_HIDDEN;
 222
 223 /* int25.c */
 224 BOOL DOSVM_RawRead( BYTE, DWORD, DWORD, BYTE *, BOOL ) DECLSPEC_HIDDEN;
 225 void WINAPI DOSVM_Int25Handler( CONTEXT * ) DECLSPEC_HIDDEN;
 226
 227 /* int26.c */
 228 BOOL DOSVM_RawWrite( BYTE, DWORD, DWORD, BYTE *, BOOL ) DECLSPEC_HIDDEN;
 229 void WINAPI DOSVM_Int26Handler( CONTEXT * ) DECLSPEC_HIDDEN;
 230
 231 /* int2f.c */
 232 extern void WINAPI DOSVM_Int2fHandler(CONTEXT*) DECLSPEC_HIDDEN;
 233
 234 /* int31.c */
 235 extern void WINAPI DOSVM_Int31Handler(CONTEXT*) DECLSPEC_HIDDEN;
 236
 237 /* interrupts.c */
 238 extern void WINAPI __wine_call_int_handler16( BYTE, CONTEXT * ) DECLSPEC_HIDDEN;
 239 extern BOOL        DOSVM_EmulateInterruptPM( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 240 extern FARPROC16   DOSVM_GetPMHandler16( BYTE ) DECLSPEC_HIDDEN;
 241 extern void        DOSVM_SetPMHandler16( BYTE, FARPROC16 ) DECLSPEC_HIDDEN;
 242
 243 /* ioports.c */
 244 extern DWORD DOSVM_inport( int port, int size ) DECLSPEC_HIDDEN;
 245 extern void DOSVM_outport( int port, int size, DWORD value ) DECLSPEC_HIDDEN;
 246
 247 #endif /* __WINE_DOSEXE_H */