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 wrap_seg;
  42     WORD xms_seg;
  43     WORD dpmi_seg;
  44     WORD dpmi_sel;
  45     WORD int48_sel;
  46     WORD int16_sel;
  47     WORD relay_code_sel;
  48     WORD relay_data_sel;
  49 };
  50
  51 /* 48-bit segmented pointers for DOS DPMI32 */
  52 typedef struct {
  53   WORD  selector;
  54   DWORD offset;
  55 } SEGPTR48, FARPROC48;
  56
  57 typedef void (*DOSRELAY)(CONTEXT*,void*);
  58 typedef void (WINAPI *RMCBPROC)(CONTEXT*);
  59 typedef void (WINAPI *INTPROC)(CONTEXT*);
  60
  61 extern WORD DOSVM_psp DECLSPEC_HIDDEN;     /* psp of current DOS task */
  62 extern WORD DOSVM_retval DECLSPEC_HIDDEN;  /* return value of previous DOS task */
  63 extern struct DPMI_segments *DOSVM_dpmi_segments DECLSPEC_HIDDEN;
  64
  65 /*
  66  * Declare some CONTEXT.EFlags bits.
  67  * IF_MASK is only pushed into real mode stack.
  68  */
  69 #define V86_FLAG 0x00020000
  70 #define TF_MASK  0x00000100
  71 #define IF_MASK  0x00000200
  72 #define VIF_MASK 0x00080000
  73 #define VIP_MASK 0x00100000
  74
  75 #define ADD_LOWORD(dw,val)  ((dw) = ((dw) & 0xffff0000) | LOWORD((DWORD)(dw)+(val)))
  76
  77 #define PTR_REAL_TO_LIN(seg,off) ((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))
  78
  79 /* NOTE: Interrupts might get called from four modes: real mode, 16-bit,
  80  *       32-bit segmented (DPMI32) and 32-bit linear (via DeviceIoControl).
  81  *       For automatic conversion of pointer
  82  *       parameters, interrupt handlers should use CTX_SEG_OFF_TO_LIN with
  83  *       the contents of a segment register as second and the contents of
  84  *       a *32-bit* general register as third parameter, e.g.
  85  *          CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EDX_reg(context) )
  86  *       This will generate a linear pointer in all three cases:
  87  *         Real-Mode:   Seg*16 + LOWORD(Offset)
  88  *         16-bit:      convert (Seg, LOWORD(Offset)) to linear
  89  *         32-bit segmented: convert (Seg, Offset) to linear
  90  *         32-bit linear:    use Offset as linear address (DeviceIoControl!)
  91  *
  92  *       Real-mode is recognized by checking the V86 bit in the flags register,
  93  *       32-bit linear mode is recognized by checking whether 'seg' is
  94  *       a system selector (0 counts also as 32-bit segment) and 32-bit
  95  *       segmented mode is recognized by checking whether 'seg' is 32-bit
  96  *       selector which is neither system selector nor zero.
  97  */
  98 #define CTX_SEG_OFF_TO_LIN(context,seg,off) \
  99     (ISV86(context) ? PTR_REAL_TO_LIN((seg),(off)) : wine_ldt_get_ptr((seg),(off)))
 100
 101 #define INT_BARF(context,num) \
 102     ERR( "int%x: unknown/not implemented parameters:\n" \
 103                      "int%x: AX %04x, BX %04x, CX %04x, DX %04x, " \
 104                      "SI %04x, DI %04x, DS %04x, ES %04x\n", \
 105              (num), (num), LOWORD((context)->Eax), LOWORD((context)->Ebx), \
 106              LOWORD((context)->Ecx), LOWORD((context)->Edx), LOWORD((context)->Esi), \
 107              LOWORD((context)->Edi), (WORD)(context)->SegDs, (WORD)(context)->SegEs )
 108
 109 /* pushing on stack in 16 bit needs segment wrap around */
 110 #define PUSH_WORD16(context,val) \
 111     *((WORD*)CTX_SEG_OFF_TO_LIN((context), \
 112         (context)->SegSs, ADD_LOWORD( context->Esp, -2 ) )) = (val)
 113
 114 /* Macros for easier access to i386 context registers */
 115
 116 #define AX_reg(context)      ((WORD)(context)->Eax)
 117 #define BX_reg(context)      ((WORD)(context)->Ebx)
 118 #define CX_reg(context)      ((WORD)(context)->Ecx)
 119 #define DX_reg(context)      ((WORD)(context)->Edx)
 120 #define SI_reg(context)      ((WORD)(context)->Esi)
 121 #define DI_reg(context)      ((WORD)(context)->Edi)
 122
 123 #define AL_reg(context)      ((BYTE)(context)->Eax)
 124 #define AH_reg(context)      ((BYTE)((context)->Eax >> 8))
 125 #define BL_reg(context)      ((BYTE)(context)->Ebx)
 126 #define BH_reg(context)      ((BYTE)((context)->Ebx >> 8))
 127 #define CL_reg(context)      ((BYTE)(context)->Ecx)
 128 #define CH_reg(context)      ((BYTE)((context)->Ecx >> 8))
 129 #define DL_reg(context)      ((BYTE)(context)->Edx)
 130 #define DH_reg(context)      ((BYTE)((context)->Edx >> 8))
 131
 132 #define SET_CFLAG(context)   ((context)->EFlags |= 0x0001)
 133 #define RESET_CFLAG(context) ((context)->EFlags &= ~0x0001)
 134 #define SET_ZFLAG(context)   ((context)->EFlags |= 0x0040)
 135 #define RESET_ZFLAG(context) ((context)->EFlags &= ~0x0040)
 136 #define ISV86(context)       ((context)->EFlags & 0x00020000)
 137
 138 #define SET_AX(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xffff) | (WORD)(val)))
 139 #define SET_BX(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xffff) | (WORD)(val)))
 140 #define SET_CX(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xffff) | (WORD)(val)))
 141 #define SET_DX(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xffff) | (WORD)(val)))
 142 #define SET_SI(context,val)  ((void)((context)->Esi = ((context)->Esi & ~0xffff) | (WORD)(val)))
 143 #define SET_DI(context,val)  ((void)((context)->Edi = ((context)->Edi & ~0xffff) | (WORD)(val)))
 144
 145 #define SET_AL(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff) | (BYTE)(val)))
 146 #define SET_BL(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff) | (BYTE)(val)))
 147 #define SET_CL(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff) | (BYTE)(val)))
 148 #define SET_DL(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff) | (BYTE)(val)))
 149
 150 #define SET_AH(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff00) | (((BYTE)(val)) << 8)))
 151 #define SET_BH(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff00) | (((BYTE)(val)) << 8)))
 152 #define SET_CH(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff00) | (((BYTE)(val)) << 8)))
 153 #define SET_DH(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff00) | (((BYTE)(val)) << 8)))
 154
 155 #include <pshpack1.h>
 156
 157 typedef struct
 158 {
 159     WORD  Com1Addr;                  /* 00: COM1 I/O address */
 160     WORD  Com2Addr;                  /* 02: COM2 I/O address */
 161     WORD  Com3Addr;                  /* 04: COM3 I/O address */
 162     WORD  Com4Addr;                  /* 06: COM4 I/O address */
 163     WORD  Lpt1Addr;                  /* 08: LPT1 I/O address */
 164     WORD  Lpt2Addr;                  /* 0a: LPT2 I/O address */
 165     WORD  Lpt3Addr;                  /* 0c: LPT3 I/O address */
 166     WORD  Lpt4Addr;                  /* 0e: LPT4 I/O address */
 167     WORD  InstalledHardware;         /* 10: Installed hardware flags */
 168     BYTE  POSTstatus;                /* 12: Power-On Self Test status */
 169     WORD  MemSize;                   /* 13: Base memory size in Kb */
 170     WORD  unused1;                   /* 15: Manufacturing test scratch pad */
 171     BYTE  KbdFlags1;                 /* 17: Keyboard flags 1 */
 172     BYTE  KbdFlags2;                 /* 18: Keyboard flags 2 */
 173     BYTE  unused2;                   /* 19: Keyboard driver workspace */
 174     WORD  NextKbdCharPtr;            /* 1a: Next character in kbd buffer */
 175     WORD  FirstKbdCharPtr;           /* 1c: First character in kbd buffer */
 176     WORD  KbdBuffer[16];             /* 1e: Keyboard buffer */
 177     BYTE  DisketteStatus1;           /* 3e: Diskette recalibrate status */
 178     BYTE  DisketteStatus2;           /* 3f: Diskette motor status */
 179     BYTE  DisketteStatus3;           /* 40: Diskette motor timeout */
 180     BYTE  DisketteStatus4;           /* 41: Diskette last operation status */
 181     BYTE  DiskStatus[7];             /* 42: Disk status/command bytes */
 182     BYTE  VideoMode;                 /* 49: Video mode */
 183     WORD  VideoColumns;              /* 4a: Number of columns */
 184     WORD  VideoPageSize;             /* 4c: Video page size in bytes */
 185     WORD  VideoPageStartAddr;        /* 4e: Video page start address */
 186     BYTE  VideoCursorPos[16];        /* 50: Cursor position for 8 pages, column/row order */
 187     WORD  VideoCursorType;           /* 60: Video cursor type */
 188     BYTE  VideoCurPage;              /* 62: Video current page */
 189     WORD  VideoCtrlAddr;             /* 63: Video controller address */
 190     BYTE  VideoReg1;                 /* 65: Video mode select register */
 191     BYTE  VideoReg2;                 /* 66: Video CGA palette register */
 192     DWORD ResetEntry;                /* 67: Warm reset entry point */
 193     BYTE  LastIRQ;                   /* 6b: Last unexpected interrupt */
 194     DWORD Ticks;                     /* 6c: Ticks since midnight */
 195     BYTE  TicksOverflow;             /* 70: Timer overflow if past midnight */
 196     BYTE  CtrlBreakFlag;             /* 71: Ctrl-Break flag */
 197     WORD  ResetFlag;                 /* 72: POST Reset flag */
 198     BYTE  DiskOpStatus;              /* 74: Last hard-disk operation status */
 199     BYTE  NbHardDisks;               /* 75: Number of hard disks */
 200     BYTE  DiskCtrlByte;              /* 76: Disk control byte */
 201     BYTE  DiskIOPort;                /* 77: Disk I/O port offset */
 202     BYTE  LptTimeout[4];             /* 78: Timeouts for parallel ports */
 203     BYTE  ComTimeout[4];             /* 7c: Timeouts for serial ports */
 204     WORD  KbdBufferStart;            /* 80: Keyboard buffer start */
 205     WORD  KbdBufferEnd;              /* 82: Keyboard buffer end */
 206     BYTE  RowsOnScreenMinus1;        /* 84: EGA only */
 207     WORD  BytesPerChar;              /* 85: EGA only */
 208     BYTE  ModeOptions;               /* 87: EGA only */
 209     BYTE  FeatureBitsSwitches;       /* 88: EGA only */
 210     BYTE  VGASettings;               /* 89: VGA misc settings */
 211     BYTE  DisplayCombination;        /* 8A: VGA display combinations */
 212     BYTE  DiskDataRate;              /* 8B: Last disk data rate selected */
 213 } BIOSDATA;
 214
 215 #include <poppack.h>
 216
 217 /* Device driver header */
 218
 219 #include <pshpack1.h>
 220
 221 typedef struct
 222 {
 223     DWORD next_dev;
 224     WORD  attr;
 225     WORD  strategy;
 226     WORD  interrupt;
 227     char  name[8];
 228 } DOS_DEVICE_HEADER;
 229
 230 #include <poppack.h>
 231
 232 /* dosvm.c */
 233 extern void DOSVM_Exit( WORD retval ) DECLSPEC_HIDDEN;
 234 extern LPVOID DOSVM_AllocDataUMB(DWORD, WORD *, WORD *) DECLSPEC_HIDDEN;
 235 extern void DOSVM_InitSegments(void) DECLSPEC_HIDDEN;
 236
 237 /* dma.c */
 238 extern int DMA_Transfer(int channel,int reqlength,void* buffer) DECLSPEC_HIDDEN;
 239 extern void DMA_ioport_out( WORD port, BYTE val ) DECLSPEC_HIDDEN;
 240 extern BYTE DMA_ioport_in( WORD port ) DECLSPEC_HIDDEN;
 241
 242 /* dosaspi.c */
 243 extern void DOSVM_ASPIHandler(CONTEXT*) DECLSPEC_HIDDEN;
 244
 245 /* dosmem.c */
 246 extern BIOSDATA *DOSVM_BiosData( void ) DECLSPEC_HIDDEN;
 247 extern void DOSVM_start_bios_timer(void) DECLSPEC_HIDDEN;
 248
 249 /* fpu.c */
 250 extern void WINAPI DOSVM_Int34Handler(CONTEXT*) DECLSPEC_HIDDEN;
 251 extern void WINAPI DOSVM_Int35Handler(CONTEXT*) DECLSPEC_HIDDEN;
 252 extern void WINAPI DOSVM_Int36Handler(CONTEXT*) DECLSPEC_HIDDEN;
 253 extern void WINAPI DOSVM_Int37Handler(CONTEXT*) DECLSPEC_HIDDEN;
 254 extern void WINAPI DOSVM_Int38Handler(CONTEXT*) DECLSPEC_HIDDEN;
 255 extern void WINAPI DOSVM_Int39Handler(CONTEXT*) DECLSPEC_HIDDEN;
 256 extern void WINAPI DOSVM_Int3aHandler(CONTEXT*) DECLSPEC_HIDDEN;
 257 extern void WINAPI DOSVM_Int3bHandler(CONTEXT*) DECLSPEC_HIDDEN;
 258 extern void WINAPI DOSVM_Int3cHandler(CONTEXT*) DECLSPEC_HIDDEN;
 259 extern void WINAPI DOSVM_Int3dHandler(CONTEXT*) DECLSPEC_HIDDEN;
 260 extern void WINAPI DOSVM_Int3eHandler(CONTEXT*) DECLSPEC_HIDDEN;
 261
 262 /* int13.c */
 263 extern void WINAPI DOSVM_Int13Handler(CONTEXT*) DECLSPEC_HIDDEN;
 264
 265 /* int15.c */
 266 extern void WINAPI DOSVM_Int15Handler(CONTEXT*) DECLSPEC_HIDDEN;
 267
 268 /* int21.c */
 269 extern void WINAPI DOSVM_Int21Handler(CONTEXT*) DECLSPEC_HIDDEN;
 270
 271 /* int25.c */
 272 BOOL DOSVM_RawRead( BYTE, DWORD, DWORD, BYTE *, BOOL ) DECLSPEC_HIDDEN;
 273 void WINAPI DOSVM_Int25Handler( CONTEXT * ) DECLSPEC_HIDDEN;
 274
 275 /* int26.c */
 276 BOOL DOSVM_RawWrite( BYTE, DWORD, DWORD, BYTE *, BOOL ) DECLSPEC_HIDDEN;
 277 void WINAPI DOSVM_Int26Handler( CONTEXT * ) DECLSPEC_HIDDEN;
 278
 279 /* int2f.c */
 280 extern void WINAPI DOSVM_Int2fHandler(CONTEXT*) DECLSPEC_HIDDEN;
 281
 282 /* int31.c */
 283 extern void WINAPI DOSVM_Int31Handler(CONTEXT*) DECLSPEC_HIDDEN;
 284 extern void WINAPI DOSVM_RawModeSwitchHandler(CONTEXT*) DECLSPEC_HIDDEN;
 285 extern BOOL DOSVM_IsDos32(void) DECLSPEC_HIDDEN;
 286 extern FARPROC16 DPMI_AllocInternalRMCB(RMCBPROC) DECLSPEC_HIDDEN;
 287 extern int DPMI_CallRMProc(CONTEXT*,LPWORD,int,int) DECLSPEC_HIDDEN;
 288 extern BOOL DOSVM_CheckWrappers(CONTEXT*) DECLSPEC_HIDDEN;
 289
 290 /* int67.c */
 291 extern void WINAPI DOSVM_Int67Handler(CONTEXT*) DECLSPEC_HIDDEN;
 292 extern void EMS_Ioctl_Handler(CONTEXT*) DECLSPEC_HIDDEN;
 293
 294 /* interrupts.c */
 295 extern void        __wine_call_int_handler( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 296 extern void        DOSVM_CallBuiltinHandler( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 297 extern BOOL        DOSVM_EmulateInterruptPM( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 298 extern FARPROC16   DOSVM_GetPMHandler16( BYTE ) DECLSPEC_HIDDEN;
 299 extern FARPROC48   DOSVM_GetPMHandler48( BYTE ) DECLSPEC_HIDDEN;
 300 extern FARPROC16   DOSVM_GetRMHandler( BYTE ) DECLSPEC_HIDDEN;
 301 extern void        DOSVM_HardwareInterruptPM( CONTEXT *, BYTE ) DECLSPEC_HIDDEN;
 302 extern void        DOSVM_SetPMHandler16( BYTE, FARPROC16 ) DECLSPEC_HIDDEN;
 303 extern void        DOSVM_SetPMHandler48( BYTE, FARPROC48 ) DECLSPEC_HIDDEN;
 304 extern void        DOSVM_SetRMHandler( BYTE, FARPROC16 ) DECLSPEC_HIDDEN;
 305
 306 /* ioports.c */
 307 extern DWORD DOSVM_inport( int port, int size ) DECLSPEC_HIDDEN;
 308 extern void DOSVM_outport( int port, int size, DWORD value ) DECLSPEC_HIDDEN;
 309
 310 /* relay.c */
 311 void DOSVM_RelayHandler( CONTEXT * ) DECLSPEC_HIDDEN;
 312 void DOSVM_BuildCallFrame( CONTEXT *, DOSRELAY, LPVOID ) DECLSPEC_HIDDEN;
 313
 314 /* soundblaster.c */
 315 extern void SB_ioport_out( WORD port, BYTE val ) DECLSPEC_HIDDEN;
 316 extern BYTE SB_ioport_in( WORD port ) DECLSPEC_HIDDEN;
 317
 318 #endif /* __WINE_DOSEXE_H */