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/library.h"
  29 #include "wine/windef16.h"
  30 #include "winbase.h"
  31 #include "winnt.h"     /* for PCONTEXT */
  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 /* various real-mode code stubs */
  39 struct DPMI_segments
  40 {
  41     WORD int16_sel;
  42     WORD relay_code_sel;
  43     WORD relay_data_sel;
  44 };
  45
  46 typedef void (*DOSRELAY)(CONTEXT*,void*);
  47 typedef void (WINAPI *RMCBPROC)(CONTEXT*);
  48 typedef void (WINAPI *INTPROC)(CONTEXT*);
  49
  50 extern WORD DOSVM_psp DECLSPEC_HIDDEN;     /* psp of current DOS task */
  51 extern WORD DOSVM_retval DECLSPEC_HIDDEN;  /* return value of previous DOS task */
  52 extern struct DPMI_segments *DOSVM_dpmi_segments DECLSPEC_HIDDEN;
  53
  54 /*
  55  * Declare some CONTEXT.EFlags bits.
  56  * IF_MASK is only pushed into real mode stack.
  57  */
  58 #define V86_FLAG 0x00020000
  59 #define TF_MASK  0x00000100
  60 #define IF_MASK  0x00000200
  61 #define VIF_MASK 0x00080000
  62 #define VIP_MASK 0x00100000
  63
  64 #define ADD_LOWORD(dw,val)  ((dw) = ((dw) & 0xffff0000) | LOWORD((DWORD)(dw)+(val)))
  65
  66 #define PTR_REAL_TO_LIN(seg,off) ((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))
  67
  68 /* NOTE: Interrupts might get called from four modes: real mode, 16-bit,
  69  *       32-bit segmented (DPMI32) and 32-bit linear (via DeviceIoControl).
  70  *       For automatic conversion of pointer
  71  *       parameters, interrupt handlers should use CTX_SEG_OFF_TO_LIN with
  72  *       the contents of a segment register as second and the contents of
  73  *       a *32-bit* general register as third parameter, e.g.
  74  *          CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EDX_reg(context) )
  75  *       This will generate a linear pointer in all three cases:
  76  *         Real-Mode:   Seg*16 + LOWORD(Offset)
  77  *         16-bit:      convert (Seg, LOWORD(Offset)) to linear
  78  *         32-bit segmented: convert (Seg, Offset) to linear
  79  *         32-bit linear:    use Offset as linear address (DeviceIoControl!)
  80  *
  81  *       Real-mode is recognized by checking the V86 bit in the flags register,
  82  *       32-bit linear mode is recognized by checking whether 'seg' is
  83  *       a system selector (0 counts also as 32-bit segment) and 32-bit
  84  *       segmented mode is recognized by checking whether 'seg' is 32-bit
  85  *       selector which is neither system selector nor zero.
  86  */
  87 #define CTX_SEG_OFF_TO_LIN(context,seg,off) (wine_ldt_get_ptr((seg),(off)))
  88
  89 #define INT_BARF(context,num) \
  90     ERR( "int%x: unknown/not implemented parameters:\n" \
  91                      "int%x: AX %04x, BX %04x, CX %04x, DX %04x, " \
  92                      "SI %04x, DI %04x, DS %04x, ES %04x\n", \
  93              (num), (num), LOWORD((context)->Eax), LOWORD((context)->Ebx), \
  94              LOWORD((context)->Ecx), LOWORD((context)->Edx), LOWORD((context)->Esi), \
  95              LOWORD((context)->Edi), (WORD)(context)->SegDs, (WORD)(context)->SegEs )
  96
  97 /* pushing on stack in 16 bit needs segment wrap around */
  98 #define PUSH_WORD16(context,val) \
  99     *((WORD*)CTX_SEG_OFF_TO_LIN((context), \
 100         (context)->SegSs, ADD_LOWORD( context->Esp, -2 ) )) = (val)
 101
 102 /* Macros for easier access to i386 context registers */
 103
 104 #define AX_reg(context)      ((WORD)(context)->Eax)
 105 #define BX_reg(context)      ((WORD)(context)->Ebx)
 106 #define CX_reg(context)      ((WORD)(context)->Ecx)
 107 #define DX_reg(context)      ((WORD)(context)->Edx)
 108 #define SI_reg(context)      ((WORD)(context)->Esi)
 109 #define DI_reg(context)      ((WORD)(context)->Edi)
 110
 111 #define AL_reg(context)      ((BYTE)(context)->Eax)
 112 #define AH_reg(context)      ((BYTE)((context)->Eax >> 8))
 113 #define BL_reg(context)      ((BYTE)(context)->Ebx)
 114 #define BH_reg(context)      ((BYTE)((context)->Ebx >> 8))
 115 #define CL_reg(context)      ((BYTE)(context)->Ecx)
 116 #define CH_reg(context)      ((BYTE)((context)->Ecx >> 8))
 117 #define DL_reg(context)      ((BYTE)(context)->Edx)
 118 #define DH_reg(context)      ((BYTE)((context)->Edx >> 8))
 119
 120 #define SET_CFLAG(context)   ((context)->EFlags |= 0x0001)
 121 #define RESET_CFLAG(context) ((context)->EFlags &= ~0x0001)
 122 #define SET_ZFLAG(context)   ((context)->EFlags |= 0x0040)
 123 #define RESET_ZFLAG(context) ((context)->EFlags &= ~0x0040)
 124
 125 #define SET_AX(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xffff) | (WORD)(val)))
 126 #define SET_BX(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xffff) | (WORD)(val)))
 127 #define SET_CX(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xffff) | (WORD)(val)))
 128 #define SET_DX(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xffff) | (WORD)(val)))
 129 #define SET_SI(context,val)  ((void)((context)->Esi = ((context)->Esi & ~0xffff) | (WORD)(val)))
 130 #define SET_DI(context,val)  ((void)((context)->Edi = ((context)->Edi & ~0xffff) | (WORD)(val)))
 131
 132 #define SET_AL(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff) | (BYTE)(val)))
 133 #define SET_BL(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff) | (BYTE)(val)))
 134 #define SET_CL(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff) | (BYTE)(val)))
 135 #define SET_DL(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff) | (BYTE)(val)))
 136
 137 #define SET_AH(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff00) | (((BYTE)(val)) << 8)))
 138 #define SET_BH(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff00) | (((BYTE)(val)) << 8)))
 139 #define SET_CH(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff00) | (((BYTE)(val)) << 8)))
 140 #define SET_DH(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff00) | (((BYTE)(val)) << 8)))
 141
 142 #include <pshpack1.h>
 143
 144 typedef struct
 145 {
 146     WORD  Com1Addr;                  /* 00: COM1 I/O address */
 147     WORD  Com2Addr;                  /* 02: COM2 I/O address */
 148     WORD  Com3Addr;                  /* 04: COM3 I/O address */
 149     WORD  Com4Addr;                  /* 06: COM4 I/O address */
 150     WORD  Lpt1Addr;                  /* 08: LPT1 I/O address */
 151     WORD  Lpt2Addr;                  /* 0a: LPT2 I/O address */
 152     WORD  Lpt3Addr;                  /* 0c: LPT3 I/O address */
 153     WORD  Lpt4Addr;                  /* 0e: LPT4 I/O address */
 154     WORD  InstalledHardware;         /* 10: Installed hardware flags */
 155     BYTE  POSTstatus;                /* 12: Power-On Self Test status */
 156     WORD  MemSize;                   /* 13: Base memory size in Kb */
 157     WORD  unused1;                   /* 15: Manufacturing test scratch pad */
 158     BYTE  KbdFlags1;                 /* 17: Keyboard flags 1 */
 159     BYTE  KbdFlags2;                 /* 18: Keyboard flags 2 */
 160     BYTE  unused2;                   /* 19: Keyboard driver workspace */
 161     WORD  NextKbdCharPtr;            /* 1a: Next character in kbd buffer */
 162     WORD  FirstKbdCharPtr;           /* 1c: First character in kbd buffer */
 163     WORD  KbdBuffer[16];             /* 1e: Keyboard buffer */
 164     BYTE  DisketteStatus1;           /* 3e: Diskette recalibrate status */
 165     BYTE  DisketteStatus2;           /* 3f: Diskette motor status */
 166     BYTE  DisketteStatus3;           /* 40: Diskette motor timeout */
 167     BYTE  DisketteStatus4;           /* 41: Diskette last operation status */
 168     BYTE  DiskStatus[7];             /* 42: Disk status/command bytes */
 169     BYTE  VideoMode;                 /* 49: Video mode */
 170     WORD  VideoColumns;              /* 4a: Number of columns */
 171     WORD  VideoPageSize;             /* 4c: Video page size in bytes */
 172     WORD  VideoPageStartAddr;        /* 4e: Video page start address */
 173     BYTE  VideoCursorPos[16];        /* 50: Cursor position for 8 pages, column/row order */
 174     WORD  VideoCursorType;           /* 60: Video cursor type */
 175     BYTE  VideoCurPage;              /* 62: Video current page */
 176     WORD  VideoCtrlAddr;             /* 63: Video controller address */
 177     BYTE  VideoReg1;                 /* 65: Video mode select register */
 178     BYTE  VideoReg2;                 /* 66: Video CGA palette register */
 179     DWORD ResetEntry;                /* 67: Warm reset entry point */
 180     BYTE  LastIRQ;                   /* 6b: Last unexpected interrupt */
 181     DWORD Ticks;                     /* 6c: Ticks since midnight */
 182     BYTE  TicksOverflow;             /* 70: Timer overflow if past midnight */
 183     BYTE  CtrlBreakFlag;             /* 71: Ctrl-Break flag */
 184     WORD  ResetFlag;                 /* 72: POST Reset flag */
 185     BYTE  DiskOpStatus;              /* 74: Last hard-disk operation status */
 186     BYTE  NbHardDisks;               /* 75: Number of hard disks */
 187     BYTE  DiskCtrlByte;              /* 76: Disk control byte */
 188     BYTE  DiskIOPort;                /* 77: Disk I/O port offset */
 189     BYTE  LptTimeout[4];             /* 78: Timeouts for parallel ports */
 190     BYTE  ComTimeout[4];             /* 7c: Timeouts for serial ports */
 191     WORD  KbdBufferStart;            /* 80: Keyboard buffer start */
 192     WORD  KbdBufferEnd;              /* 82: Keyboard buffer end */
 193     BYTE  RowsOnScreenMinus1;        /* 84: EGA only */
 194     WORD  BytesPerChar;              /* 85: EGA only */
 195     BYTE  ModeOptions;               /* 87: EGA only */
 196     BYTE  FeatureBitsSwitches;       /* 88: EGA only */
 197     BYTE  VGASettings;               /* 89: VGA misc settings */
 198     BYTE  DisplayCombination;        /* 8A: VGA display combinations */
 199     BYTE  DiskDataRate;              /* 8B: Last disk data rate selected */
 200 } BIOSDATA;
 201
 202 #include <poppack.h>
 203
 204 /* Device driver header */
 205
 206 #include <pshpack1.h>
 207
 208 typedef struct
 209 {
 210     DWORD next_dev;
 211     WORD  attr;
 212     WORD  strategy;
 213     WORD  interrupt;
 214     char  name[8];
 215 } DOS_DEVICE_HEADER;
 216
 217 #include <poppack.h>
 218
 219 /* dosvm.c */
 220 extern void DOSVM_Exit( WORD retval ) DECLSPEC_HIDDEN;
 221 extern LPVOID DOSVM_AllocDataUMB(DWORD, WORD *) DECLSPEC_HIDDEN;
 222 extern void DOSVM_InitSegments(void) DECLSPEC_HIDDEN;
 223
 224 /* dma.c */
 225 extern int DMA_Transfer(int channel,int reqlength,void* buffer) DECLSPEC_HIDDEN;
 226 extern void DMA_ioport_out( WORD port, BYTE val ) DECLSPEC_HIDDEN;
 227 extern BYTE DMA_ioport_in( WORD port ) DECLSPEC_HIDDEN;
 228
 229 /* dosmem.c */
 230 extern BIOSDATA *DOSVM_BiosData( void ) DECLSPEC_HIDDEN;
 231 extern void DOSVM_start_bios_timer(void) DECLSPEC_HIDDEN;
 232
 233 /* fpu.c */
 234 extern void WINAPI DOSVM_Int34Handler(CONTEXT*) DECLSPEC_HIDDEN;
 235 extern void WINAPI DOSVM_Int35Handler(CONTEXT*) DECLSPEC_HIDDEN;
 236 extern void WINAPI DOSVM_Int36Handler(CONTEXT*) DECLSPEC_HIDDEN;
 237 extern void WINAPI DOSVM_Int37Handler(CONTEXT*) DECLSPEC_HIDDEN;
 238 extern void WINAPI DOSVM_Int38Handler(CONTEXT*) DECLSPEC_HIDDEN;
 239 extern void WINAPI DOSVM_Int39Handler(CONTEXT*) DECLSPEC_HIDDEN;
 240 extern void WINAPI DOSVM_Int3aHandler(CONTEXT*) DECLSPEC_HIDDEN;
 241 extern void WINAPI DOSVM_Int3bHandler(CONTEXT*) DECLSPEC_HIDDEN;
 242 extern void WINAPI DOSVM_Int3cHandler(CONTEXT*) DECLSPEC_HIDDEN;
 243 extern void WINAPI DOSVM_Int3dHandler(CONTEXT*) DECLSPEC_HIDDEN;
 244 extern void WINAPI DOSVM_Int3eHandler(CONTEXT*) DECLSPEC_HIDDEN;
 245
 246 /* int13.c */
 247 extern void WINAPI DOSVM_Int13Handler(CONTEXT*) DECLSPEC_HIDDEN;
 248
 249 /* int15.c */
 250 extern void WINAPI DOSVM_Int15Handler(CONTEXT*) DECLSPEC_HIDDEN;
 251
 252 /* int21.c */
 253 extern void WINAPI DOSVM_Int21Handler(CONTEXT*) DECLSPEC_HIDDEN;
 254
 255 /* int25.c */
 256 BOOL DOSVM_RawRead( BYTE, DWORD, DWORD, BYTE *, BOOL ) DECLSPEC_HIDDEN;
 257 void WINAPI DOSVM_Int25Handler( CONTEXT * ) DECLSPEC_HIDDEN;
 258
 259 /* int26.c */
 260 BOOL DOSVM_RawWrite( BYTE, DWORD, DWORD, BYTE *, BOOL ) DECLSPEC_HIDDEN;
 261 void WINAPI DOSVM_Int26Handler( CONTEXT * ) DECLSPEC_HIDDEN;
 262
 263 /* int2f.c */
 264 extern void WINAPI DOSVM_Int2fHandler(CONTEXT*) DECLSPEC_HIDDEN;
 265
 266 /* int31.c */
 267 extern void WINAPI DOSVM_Int31Handler(CONTEXT*) DECLSPEC_HIDDEN;
 268
 269 /* int67.c */
 270 extern void WINAPI DOSVM_Int67Handler(CONTEXT*) DECLSPEC_HIDDEN;
 271 extern void EMS_Ioctl_Handler(CONTEXT*) DECLSPEC_HIDDEN;
 272
 273 /* interrupts.c */
 274 extern void        __wine_call_int_handler( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 275 extern BOOL        DOSVM_EmulateInterruptPM( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 276 extern FARPROC16   DOSVM_GetPMHandler16( BYTE ) DECLSPEC_HIDDEN;
 277 extern void        DOSVM_SetPMHandler16( BYTE, FARPROC16 ) DECLSPEC_HIDDEN;
 278
 279 /* ioports.c */
 280 extern DWORD DOSVM_inport( int port, int size ) DECLSPEC_HIDDEN;
 281 extern void DOSVM_outport( int port, int size, DWORD value ) DECLSPEC_HIDDEN;
 282
 283 /* relay.c */
 284 void DOSVM_RelayHandler( CONTEXT * ) DECLSPEC_HIDDEN;
 285 void DOSVM_BuildCallFrame( CONTEXT *, DOSRELAY, LPVOID ) DECLSPEC_HIDDEN;
 286
 287 /* soundblaster.c */
 288 extern void SB_ioport_out( WORD port, BYTE val ) DECLSPEC_HIDDEN;
 289 extern BYTE SB_ioport_in( WORD port ) DECLSPEC_HIDDEN;
 290
 291 #endif /* __WINE_DOSEXE_H */