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 #include "wincon.h"    /* for MOUSE_EVENT_RECORD */
  33
  34 #define MAX_DOS_DRIVES  26
  35
  36 struct _DOSEVENT;
  37
  38 typedef struct {
  39   PAPCFUNC proc;
  40   ULONG_PTR arg;
  41 } DOS_SPC;
  42
  43 extern pid_t dosvm_pid;
  44
  45 /* amount of space reserved for relay stack */
  46 #define DOSVM_RELAY_DATA_SIZE 4096
  47
  48 /* various real-mode code stubs */
  49 struct DPMI_segments
  50 {
  51     WORD wrap_seg;
  52     WORD xms_seg;
  53     WORD dpmi_seg;
  54     WORD dpmi_sel;
  55     WORD int48_sel;
  56     WORD int16_sel;
  57     WORD relay_code_sel;
  58     WORD relay_data_sel;
  59 };
  60
  61 /* 48-bit segmented pointers for DOS DPMI32 */
  62 typedef struct {
  63   WORD  selector;
  64   DWORD offset;
  65 } SEGPTR48, FARPROC48;
  66
  67 typedef void (*DOSRELAY)(CONTEXT*,void*);
  68 typedef void (WINAPI *RMCBPROC)(CONTEXT*);
  69 typedef void (WINAPI *INTPROC)(CONTEXT*);
  70
  71 #define DOS_PRIORITY_REALTIME 0  /* IRQ0 */
  72 #define DOS_PRIORITY_KEYBOARD 1  /* IRQ1 */
  73 #define DOS_PRIORITY_VGA      2  /* IRQ9 */
  74 #define DOS_PRIORITY_MOUSE    5  /* IRQ12 */
  75 #define DOS_PRIORITY_SERIAL   10 /* IRQ4 */
  76
  77 extern WORD DOSVM_psp;     /* psp of current DOS task */
  78 extern WORD DOSVM_retval;  /* return value of previous DOS task */
  79 extern struct DPMI_segments *DOSVM_dpmi_segments;
  80
  81 #if defined(linux) && defined(__i386__) && defined(HAVE_SYS_VM86_H)
  82 # define MZ_SUPPORTED
  83 #endif /* linux-i386 */
  84
  85 /*
  86  * Declare some CONTEXT.EFlags bits.
  87  * IF_MASK is only pushed into real mode stack.
  88  */
  89 #define V86_FLAG 0x00020000
  90 #define TF_MASK  0x00000100
  91 #define IF_MASK  0x00000200
  92 #define VIF_MASK 0x00080000
  93 #define VIP_MASK 0x00100000
  94
  95 #define ADD_LOWORD(dw,val)  ((dw) = ((dw) & 0xffff0000) | LOWORD((DWORD)(dw)+(val)))
  96
  97 #define PTR_REAL_TO_LIN(seg,off) ((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))
  98
  99 /* NOTE: Interrupts might get called from four modes: real mode, 16-bit,
 100  *       32-bit segmented (DPMI32) and 32-bit linear (via DeviceIoControl).
 101  *       For automatic conversion of pointer
 102  *       parameters, interrupt handlers should use CTX_SEG_OFF_TO_LIN with
 103  *       the contents of a segment register as second and the contents of
 104  *       a *32-bit* general register as third parameter, e.g.
 105  *          CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EDX_reg(context) )
 106  *       This will generate a linear pointer in all three cases:
 107  *         Real-Mode:   Seg*16 + LOWORD(Offset)
 108  *         16-bit:      convert (Seg, LOWORD(Offset)) to linear
 109  *         32-bit segmented: convert (Seg, Offset) to linear
 110  *         32-bit linear:    use Offset as linear address (DeviceIoControl!)
 111  *
 112  *       Real-mode is recognized by checking the V86 bit in the flags register,
 113  *       32-bit linear mode is recognized by checking whether 'seg' is
 114  *       a system selector (0 counts also as 32-bit segment) and 32-bit
 115  *       segmented mode is recognized by checking whether 'seg' is 32-bit
 116  *       selector which is neither system selector nor zero.
 117  */
 118 #define CTX_SEG_OFF_TO_LIN(context,seg,off) \
 119     (ISV86(context) ? PTR_REAL_TO_LIN((seg),(off)) : wine_ldt_get_ptr((seg),(off)))
 120
 121 #define INT_BARF(context,num) \
 122     ERR( "int%x: unknown/not implemented parameters:\n" \
 123                      "int%x: AX %04x, BX %04x, CX %04x, DX %04x, " \
 124                      "SI %04x, DI %04x, DS %04x, ES %04x\n", \
 125              (num), (num), LOWORD((context)->Eax), LOWORD((context)->Ebx), \
 126              LOWORD((context)->Ecx), LOWORD((context)->Edx), LOWORD((context)->Esi), \
 127              LOWORD((context)->Edi), (WORD)(context)->SegDs, (WORD)(context)->SegEs )
 128
 129 /* pushing on stack in 16 bit needs segment wrap around */
 130 #define PUSH_WORD16(context,val) \
 131     *((WORD*)CTX_SEG_OFF_TO_LIN((context), \
 132         (context)->SegSs, ADD_LOWORD( context->Esp, -2 ) )) = (val)
 133
 134 /* Macros for easier access to i386 context registers */
 135
 136 #define AX_reg(context)      ((WORD)(context)->Eax)
 137 #define BX_reg(context)      ((WORD)(context)->Ebx)
 138 #define CX_reg(context)      ((WORD)(context)->Ecx)
 139 #define DX_reg(context)      ((WORD)(context)->Edx)
 140 #define SI_reg(context)      ((WORD)(context)->Esi)
 141 #define DI_reg(context)      ((WORD)(context)->Edi)
 142
 143 #define AL_reg(context)      ((BYTE)(context)->Eax)
 144 #define AH_reg(context)      ((BYTE)((context)->Eax >> 8))
 145 #define BL_reg(context)      ((BYTE)(context)->Ebx)
 146 #define BH_reg(context)      ((BYTE)((context)->Ebx >> 8))
 147 #define CL_reg(context)      ((BYTE)(context)->Ecx)
 148 #define CH_reg(context)      ((BYTE)((context)->Ecx >> 8))
 149 #define DL_reg(context)      ((BYTE)(context)->Edx)
 150 #define DH_reg(context)      ((BYTE)((context)->Edx >> 8))
 151
 152 #define SET_CFLAG(context)   ((context)->EFlags |= 0x0001)
 153 #define RESET_CFLAG(context) ((context)->EFlags &= ~0x0001)
 154 #define SET_ZFLAG(context)   ((context)->EFlags |= 0x0040)
 155 #define RESET_ZFLAG(context) ((context)->EFlags &= ~0x0040)
 156 #define ISV86(context)       ((context)->EFlags & 0x00020000)
 157
 158 #define SET_AX(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xffff) | (WORD)(val)))
 159 #define SET_BX(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xffff) | (WORD)(val)))
 160 #define SET_CX(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xffff) | (WORD)(val)))
 161 #define SET_DX(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xffff) | (WORD)(val)))
 162 #define SET_SI(context,val)  ((void)((context)->Esi = ((context)->Esi & ~0xffff) | (WORD)(val)))
 163 #define SET_DI(context,val)  ((void)((context)->Edi = ((context)->Edi & ~0xffff) | (WORD)(val)))
 164
 165 #define SET_AL(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff) | (BYTE)(val)))
 166 #define SET_BL(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff) | (BYTE)(val)))
 167 #define SET_CL(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff) | (BYTE)(val)))
 168 #define SET_DL(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff) | (BYTE)(val)))
 169
 170 #define SET_AH(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff00) | (((BYTE)(val)) << 8)))
 171 #define SET_BH(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff00) | (((BYTE)(val)) << 8)))
 172 #define SET_CH(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff00) | (((BYTE)(val)) << 8)))
 173 #define SET_DH(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff00) | (((BYTE)(val)) << 8)))
 174
 175 #include <pshpack1.h>
 176
 177 typedef struct
 178 {
 179     WORD  Com1Addr;                  /* 00: COM1 I/O address */
 180     WORD  Com2Addr;                  /* 02: COM2 I/O address */
 181     WORD  Com3Addr;                  /* 04: COM3 I/O address */
 182     WORD  Com4Addr;                  /* 06: COM4 I/O address */
 183     WORD  Lpt1Addr;                  /* 08: LPT1 I/O address */
 184     WORD  Lpt2Addr;                  /* 0a: LPT2 I/O address */
 185     WORD  Lpt3Addr;                  /* 0c: LPT3 I/O address */
 186     WORD  Lpt4Addr;                  /* 0e: LPT4 I/O address */
 187     WORD  InstalledHardware;         /* 10: Installed hardware flags */
 188     BYTE  POSTstatus;                /* 12: Power-On Self Test status */
 189     WORD  MemSize;                   /* 13: Base memory size in Kb */
 190     WORD  unused1;                   /* 15: Manufacturing test scratch pad */
 191     BYTE  KbdFlags1;                 /* 17: Keyboard flags 1 */
 192     BYTE  KbdFlags2;                 /* 18: Keyboard flags 2 */
 193     BYTE  unused2;                   /* 19: Keyboard driver workspace */
 194     WORD  NextKbdCharPtr;            /* 1a: Next character in kbd buffer */
 195     WORD  FirstKbdCharPtr;           /* 1c: First character in kbd buffer */
 196     WORD  KbdBuffer[16];             /* 1e: Keyboard buffer */
 197     BYTE  DisketteStatus1;           /* 3e: Diskette recalibrate status */
 198     BYTE  DisketteStatus2;           /* 3f: Diskette motor status */
 199     BYTE  DisketteStatus3;           /* 40: Diskette motor timeout */
 200     BYTE  DisketteStatus4;           /* 41: Diskette last operation status */
 201     BYTE  DiskStatus[7];             /* 42: Disk status/command bytes */
 202     BYTE  VideoMode;                 /* 49: Video mode */
 203     WORD  VideoColumns;              /* 4a: Number of columns */
 204     WORD  VideoPageSize;             /* 4c: Video page size in bytes */
 205     WORD  VideoPageStartAddr;        /* 4e: Video page start address */
 206     BYTE  VideoCursorPos[16];        /* 50: Cursor position for 8 pages, column/row order */
 207     WORD  VideoCursorType;           /* 60: Video cursor type */
 208     BYTE  VideoCurPage;              /* 62: Video current page */
 209     WORD  VideoCtrlAddr;             /* 63: Video controller address */
 210     BYTE  VideoReg1;                 /* 65: Video mode select register */
 211     BYTE  VideoReg2;                 /* 66: Video CGA palette register */
 212     DWORD ResetEntry;                /* 67: Warm reset entry point */
 213     BYTE  LastIRQ;                   /* 6b: Last unexpected interrupt */
 214     DWORD Ticks;                     /* 6c: Ticks since midnight */
 215     BYTE  TicksOverflow;             /* 70: Timer overflow if past midnight */
 216     BYTE  CtrlBreakFlag;             /* 71: Ctrl-Break flag */
 217     WORD  ResetFlag;                 /* 72: POST Reset flag */
 218     BYTE  DiskOpStatus;              /* 74: Last hard-disk operation status */
 219     BYTE  NbHardDisks;               /* 75: Number of hard disks */
 220     BYTE  DiskCtrlByte;              /* 76: Disk control byte */
 221     BYTE  DiskIOPort;                /* 77: Disk I/O port offset */
 222     BYTE  LptTimeout[4];             /* 78: Timeouts for parallel ports */
 223     BYTE  ComTimeout[4];             /* 7c: Timeouts for serial ports */
 224     WORD  KbdBufferStart;            /* 80: Keyboard buffer start */
 225     WORD  KbdBufferEnd;              /* 82: Keyboard buffer end */
 226     BYTE  RowsOnScreenMinus1;        /* 84: EGA only */
 227     WORD  BytesPerChar;              /* 85: EGA only */
 228     BYTE  ModeOptions;               /* 87: EGA only */
 229     BYTE  FeatureBitsSwitches;       /* 88: EGA only */
 230     BYTE  VGASettings;               /* 89: VGA misc settings */
 231     BYTE  DisplayCombination;        /* 8A: VGA display combinations */
 232     BYTE  DiskDataRate;              /* 8B: Last disk data rate selected */
 233 } BIOSDATA;
 234
 235 #include <poppack.h>
 236
 237 /* Device driver header */
 238
 239 #define NONEXT ((DWORD)-1)
 240
 241 #define ATTR_STDIN     0x0001
 242 #define ATTR_STDOUT    0x0002
 243 #define ATTR_NUL       0x0004
 244 #define ATTR_CLOCK     0x0008
 245 #define ATTR_FASTCON   0x0010
 246 #define ATTR_RAW       0x0020
 247 #define ATTR_NOTEOF    0x0040
 248 #define ATTR_DEVICE    0x0080
 249 #define ATTR_REMOVABLE 0x0800
 250 #define ATTR_NONIBM    0x2000 /* block devices */
 251 #define ATTR_UNTILBUSY 0x2000 /* char devices */
 252 #define ATTR_IOCTL     0x4000
 253 #define ATTR_CHAR      0x8000
 254
 255 #include <pshpack1.h>
 256
 257 typedef struct
 258 {
 259     DWORD next_dev;
 260     WORD  attr;
 261     WORD  strategy;
 262     WORD  interrupt;
 263     char  name[8];
 264 } DOS_DEVICE_HEADER;
 265
 266 #include <poppack.h>
 267
 268 /* DOS Device requests */
 269
 270 #define CMD_INIT       0
 271 #define CMD_MEDIACHECK 1 /* block devices */
 272 #define CMD_BUILDBPB   2 /* block devices */
 273 #define CMD_INIOCTL    3
 274 #define CMD_INPUT      4 /* read data */
 275 #define CMD_SAFEINPUT  5 /* "non-destructive input no wait", char devices */
 276 #define CMD_INSTATUS   6 /* char devices */
 277 #define CMD_INFLUSH    7 /* char devices */
 278 #define CMD_OUTPUT     8 /* write data */
 279 #define CMD_SAFEOUTPUT 9 /* write data with verify */
 280 #define CMD_OUTSTATUS 10 /* char devices */
 281 #define CMD_OUTFLUSH  11 /* char devices */
 282 #define CMD_OUTIOCTL  12
 283 #define CMD_DEVOPEN   13
 284 #define CMD_DEVCLOSE  14
 285 #define CMD_REMOVABLE 15 /* block devices */
 286 #define CMD_UNTILBUSY 16 /* output until busy */
 287
 288 #define STAT_MASK  0x00FF
 289 #define STAT_DONE  0x0100
 290 #define STAT_BUSY  0x0200
 291 #define STAT_ERROR 0x8000
 292
 293 #include <pshpack1.h>
 294
 295 typedef struct {
 296     BYTE size;          /* length of header + data */
 297     BYTE unit;          /* unit (block devices only) */
 298     BYTE command;
 299     WORD status;
 300     BYTE reserved[8];
 301 } REQUEST_HEADER;
 302
 303 typedef struct {
 304     REQUEST_HEADER hdr;
 305     BYTE media;         /* media descriptor from BPB */
 306     SEGPTR buffer;
 307     WORD count;         /* byte/sector count */
 308     WORD sector;        /* starting sector (block devices) */
 309     DWORD volume;       /* volume ID (block devices) */
 310 } REQ_IO;
 311
 312 typedef struct {
 313     REQUEST_HEADER hdr;
 314     BYTE data;
 315 } REQ_SAFEINPUT;
 316
 317 /* WINE device driver thunk from RM */
 318 typedef struct {
 319     BYTE ljmp1;
 320     FARPROC16 strategy;
 321     BYTE ljmp2;
 322     FARPROC16 interrupt;
 323 } WINEDEV_THUNK;
 324
 325 #include <poppack.h>
 326
 327 /* Device driver info (used for initialization) */
 328 typedef struct
 329 {
 330     char name[8];
 331     WORD attr;
 332     RMCBPROC strategy;
 333     RMCBPROC interrupt;
 334 } WINEDEV;
 335
 336 /* dosexe.c */
 337 extern BOOL MZ_Exec( CONTEXT *context, LPCSTR filename, BYTE func, LPVOID paramblk );
 338 extern void MZ_Exit( CONTEXT *context, BOOL cs_psp, WORD retval );
 339 extern BOOL MZ_Current( void );
 340 extern void MZ_AllocDPMITask( void );
 341 extern void MZ_RunInThread( PAPCFUNC proc, ULONG_PTR arg );
 342 extern BOOL DOSVM_IsWin16(void);
 343 extern void DOSVM_Exit( WORD retval );
 344
 345 /* dosvm.c */
 346 extern void DOSVM_SendQueuedEvents( CONTEXT * );
 347 extern void WINAPI DOSVM_AcknowledgeIRQ( CONTEXT * );
 348 extern INT DOSVM_Enter( CONTEXT *context );
 349 extern void DOSVM_Wait( CONTEXT * );
 350 extern DWORD DOSVM_Loop( HANDLE hThread );
 351 extern void DOSVM_QueueEvent( INT irq, INT priority, DOSRELAY relay, LPVOID data );
 352 extern void DOSVM_PIC_ioport_out( WORD port, BYTE val );
 353 extern void DOSVM_SetTimer( UINT ticks );
 354 extern LPVOID DOSVM_AllocDataUMB(DWORD, WORD *, WORD *);
 355 extern void DOSVM_InitSegments(void);
 356
 357 /* devices.c */
 358 extern void DOSDEV_InstallDOSDevices(void);
 359 extern void DOSDEV_SetupDevice(const WINEDEV * devinfo,
 360                                WORD seg, WORD off_dev, WORD off_thunk);
 361 extern void DOSDEV_SetSharingRetry(WORD delay, WORD count);
 362 extern SEGPTR DOSDEV_GetLOL(BOOL v86);
 363
 364 /* dma.c */
 365 extern int DMA_Transfer(int channel,int reqlength,void* buffer);
 366 extern void DMA_ioport_out( WORD port, BYTE val );
 367 extern BYTE DMA_ioport_in( WORD port );
 368
 369 /* dosaspi.c */
 370 extern void DOSVM_ASPIHandler(CONTEXT*);
 371
 372 /* dosmem.c */
 373 extern BIOSDATA *DOSVM_BiosData( void );
 374 extern void DOSVM_start_bios_timer(void);
 375
 376 /* fpu.c */
 377 extern void WINAPI DOSVM_Int34Handler(CONTEXT*);
 378 extern void WINAPI DOSVM_Int35Handler(CONTEXT*);
 379 extern void WINAPI DOSVM_Int36Handler(CONTEXT*);
 380 extern void WINAPI DOSVM_Int37Handler(CONTEXT*);
 381 extern void WINAPI DOSVM_Int38Handler(CONTEXT*);
 382 extern void WINAPI DOSVM_Int39Handler(CONTEXT*);
 383 extern void WINAPI DOSVM_Int3aHandler(CONTEXT*);
 384 extern void WINAPI DOSVM_Int3bHandler(CONTEXT*);
 385 extern void WINAPI DOSVM_Int3cHandler(CONTEXT*);
 386 extern void WINAPI DOSVM_Int3dHandler(CONTEXT*);
 387 extern void WINAPI DOSVM_Int3eHandler(CONTEXT*);
 388
 389 /* int09.c */
 390 extern void WINAPI DOSVM_Int09Handler(CONTEXT*);
 391 extern void DOSVM_Int09SendScan(BYTE scan,BYTE ascii);
 392 extern BYTE DOSVM_Int09ReadScan(BYTE*ascii);
 393
 394 /* int10.c */
 395 extern void WINAPI DOSVM_Int10Handler(CONTEXT*);
 396 extern void DOSVM_PutChar(BYTE ascii);
 397
 398 /* int13.c */
 399 extern void WINAPI DOSVM_Int13Handler(CONTEXT*);
 400
 401 /* int15.c */
 402 extern void WINAPI DOSVM_Int15Handler(CONTEXT*);
 403
 404 /* int16.c */
 405 extern void WINAPI DOSVM_Int16Handler(CONTEXT*);
 406 extern BOOL DOSVM_Int16ReadChar( BYTE *, BYTE *, CONTEXT * );
 407 extern int DOSVM_Int16AddChar(BYTE ascii,BYTE scan);
 408
 409 /* int21.c */
 410 extern void WINAPI DOSVM_Int21Handler(CONTEXT*);
 411
 412 /* int25.c */
 413 BOOL DOSVM_RawRead( BYTE, DWORD, DWORD, BYTE *, BOOL );
 414 void WINAPI DOSVM_Int25Handler( CONTEXT * );
 415
 416 /* int26.c */
 417 BOOL DOSVM_RawWrite( BYTE, DWORD, DWORD, BYTE *, BOOL );
 418 void WINAPI DOSVM_Int26Handler( CONTEXT * );
 419
 420 /* int2f.c */
 421 extern void WINAPI DOSVM_Int2fHandler(CONTEXT*);
 422 extern void MSCDEX_InstallCDROM(void);
 423
 424 /* int31.c */
 425 extern void WINAPI DOSVM_Int31Handler(CONTEXT*);
 426 extern void WINAPI DOSVM_RawModeSwitchHandler(CONTEXT*);
 427 extern BOOL DOSVM_IsDos32(void);
 428 extern FARPROC16 DPMI_AllocInternalRMCB(RMCBPROC);
 429 extern int DPMI_CallRMProc(CONTEXT*,LPWORD,int,int);
 430 extern BOOL DOSVM_CheckWrappers(CONTEXT*);
 431
 432 /* int33.c */
 433 extern void WINAPI DOSVM_Int33Handler(CONTEXT*);
 434 extern void DOSVM_Int33Message(UINT,WPARAM,LPARAM);
 435 extern void DOSVM_Int33Console(MOUSE_EVENT_RECORD*);
 436
 437 /* int67.c */
 438 extern void WINAPI DOSVM_Int67Handler(CONTEXT*);
 439 extern void EMS_Ioctl_Handler(CONTEXT*);
 440
 441 /* interrupts.c */
 442 extern void        __wine_call_int_handler( CONTEXT *, BYTE );
 443 extern void        DOSVM_CallBuiltinHandler( CONTEXT *, BYTE );
 444 extern BOOL        DOSVM_EmulateInterruptPM( CONTEXT *, BYTE );
 445 extern BOOL        DOSVM_EmulateInterruptRM( CONTEXT *, BYTE );
 446 extern FARPROC16   DOSVM_GetPMHandler16( BYTE );
 447 extern FARPROC48   DOSVM_GetPMHandler48( BYTE );
 448 extern FARPROC16   DOSVM_GetRMHandler( BYTE );
 449 extern void        DOSVM_HardwareInterruptPM( CONTEXT *, BYTE );
 450 extern void        DOSVM_HardwareInterruptRM( CONTEXT *, BYTE );
 451 extern void        DOSVM_SetPMHandler16( BYTE, FARPROC16 );
 452 extern void        DOSVM_SetPMHandler48( BYTE, FARPROC48 );
 453 extern void        DOSVM_SetRMHandler( BYTE, FARPROC16 );
 454
 455 /* ioports.c */
 456 extern DWORD DOSVM_inport( int port, int size );
 457 extern void DOSVM_outport( int port, int size, DWORD value );
 458
 459 /* relay.c */
 460 void DOSVM_RelayHandler( CONTEXT * );
 461 void DOSVM_BuildCallFrame( CONTEXT *, DOSRELAY, LPVOID );
 462
 463 /* soundblaster.c */
 464 extern void SB_ioport_out( WORD port, BYTE val );
 465 extern BYTE SB_ioport_in( WORD port );
 466
 467 /* timer.c */
 468 extern void WINAPI DOSVM_Int08Handler(CONTEXT*);
 469
 470 #endif /* __WINE_DOSEXE_H */