include/miscemu.h

   1 /*
   2  * Misc. emulation definitions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __WINE_MISCEMU_H
  22 #define __WINE_MISCEMU_H
  23
  24 #include "windef.h"
  25 #include "selectors.h"
  26 #include "wine/windef16.h"
  27
  28 /* msdos/dosconf.c */
  29 extern int DOSCONF_ReadConfig(void);
  30
  31 /* msdos/dosmem.c */
  32 #include "pshpack1.h"
  33
  34 typedef struct
  35 {
  36     WORD  Com1Addr;                  /* 00: COM1 I/O address */
  37     WORD  Com2Addr;                  /* 02: COM2 I/O address */
  38     WORD  Com3Addr;                  /* 04: COM3 I/O address */
  39     WORD  Com4Addr;                  /* 06: COM4 I/O address */
  40     WORD  Lpt1Addr;                  /* 08: LPT1 I/O address */
  41     WORD  Lpt2Addr;                  /* 0a: LPT2 I/O address */
  42     WORD  Lpt3Addr;                  /* 0c: LPT3 I/O address */
  43     WORD  Lpt4Addr;                  /* 0e: LPT4 I/O address */
  44     WORD  InstalledHardware;         /* 10: Installed hardware flags */
  45     BYTE  POSTstatus;                /* 12: Power-On Self Test status */
  46     WORD  MemSize WINE_PACKED;       /* 13: Base memory size in Kb */
  47     WORD  unused1 WINE_PACKED;       /* 15: Manufacturing test scratch pad */
  48     BYTE  KbdFlags1;                 /* 17: Keyboard flags 1 */
  49     BYTE  KbdFlags2;                 /* 18: Keyboard flags 2 */
  50     BYTE  unused2;                   /* 19: Keyboard driver workspace */
  51     WORD  NextKbdCharPtr;            /* 1a: Next character in kbd buffer */
  52     WORD  FirstKbdCharPtr;           /* 1c: First character in kbd buffer */
  53     WORD  KbdBuffer[16];             /* 1e: Keyboard buffer */
  54     BYTE  DisketteStatus1;           /* 3e: Diskette recalibrate status */
  55     BYTE  DisketteStatus2;           /* 3f: Diskette motor status */
  56     BYTE  DisketteStatus3;           /* 40: Diskette motor timeout */
  57     BYTE  DisketteStatus4;           /* 41: Diskette last operation status */
  58     BYTE  DiskStatus[7];             /* 42: Disk status/command bytes */
  59     BYTE  VideoMode;                 /* 49: Video mode */
  60     WORD  VideoColumns;              /* 4a: Number of columns */
  61     WORD  VideoPageSize;             /* 4c: Video page size in bytes */
  62     WORD  VideoPageStartAddr;        /* 4e: Video page start address */
  63     BYTE  VideoCursorPos[16];        /* 50: Cursor position for 8 pages, column/row order */
  64     WORD  VideoCursorType;           /* 60: Video cursor type */
  65     BYTE  VideoCurPage;              /* 62: Video current page */
  66     WORD  VideoCtrlAddr WINE_PACKED; /* 63: Video controller address */
  67     BYTE  VideoReg1;                 /* 65: Video mode select register */
  68     BYTE  VideoReg2;                 /* 66: Video CGA palette register */
  69     DWORD ResetEntry WINE_PACKED;    /* 67: Warm reset entry point */
  70     BYTE  LastIRQ;                   /* 6b: Last unexpected interrupt */
  71     DWORD Ticks;                     /* 6c: Ticks since midnight */
  72     BYTE  TicksOverflow;             /* 70: Timer overflow if past midnight */
  73     BYTE  CtrlBreakFlag;             /* 71: Ctrl-Break flag */
  74     WORD  ResetFlag;                 /* 72: POST Reset flag */
  75     BYTE  DiskOpStatus;              /* 74: Last hard-disk operation status */
  76     BYTE  NbHardDisks;               /* 75: Number of hard disks */
  77     BYTE  DiskCtrlByte;              /* 76: Disk control byte */
  78     BYTE  DiskIOPort;                /* 77: Disk I/O port offset */
  79     BYTE  LptTimeout[4];             /* 78: Timeouts for parallel ports */
  80     BYTE  ComTimeout[4];             /* 7c: Timeouts for serial ports */
  81     WORD  KbdBufferStart;            /* 80: Keyboard buffer start */
  82     WORD  KbdBufferEnd;              /* 82: Keyboard buffer end */
  83     BYTE  RowsOnScreenMinus1;        /* 84: EGA only */
  84     WORD  BytesPerChar WINE_PACKED;  /* 85: EGA only */
  85     BYTE  ModeOptions;               /* 87: EGA only */
  86     BYTE  FeatureBitsSwitches;       /* 88: EGA only */
  87     BYTE  VGASettings;               /* 89: VGA misc settings */
  88     BYTE  DisplayCombination;        /* 8A: VGA display combinations */
  89     BYTE  DiskDataRate;              /* 8B: Last disk data rate selected */
  90 } BIOSDATA;
  91
  92 typedef struct
  93 {
  94     DWORD StaticFuncTable;           /* 00: static functionality table */
  95     BYTE  VideoMode;                 /* 04: video mode in effect */
  96     WORD  NumberColumns;             /* 05: number of columns */
  97     WORD  RegenBufLen;               /* 07: length of regen buffer in bytes */
  98     WORD  RegenBufAddr;              /* 09: starting address of regen buffer */
  99     WORD  CursorPos[8];              /* 0B: cursor position for page 0..7 */
 100     WORD  CursorType;                /* 1B: cursor "type" (start/stop scan lines) */
 101     BYTE  ActivePage;                /* 1D: active display page */
 102     WORD  CRTCPort;                  /* 1E: CRTC port address */
 103     BYTE  Port3x8;                   /* 20: current setting of PORT 03x8h */
 104     BYTE  Port3x9;                   /* 21: current setting of PORT 03x9h */
 105     BYTE  NumberRows;                /* 22: number of rows - 1 */
 106     WORD  BytesPerChar;              /* 23: bytes/character */
 107     BYTE  DCCActive;                 /* 25: display combination code of active display */
 108     BYTE  DCCAlternate;              /* 26: DCC of alternate display */
 109     WORD  NumberColors;              /* 27: number of colors supported in current mode (0000h = mono) */
 110     BYTE  NumberPages;               /* 29: number of pages supported in current mode */
 111     BYTE  NumberScanlines;           /* 2A: number of scan lines active */
 112     BYTE  CharBlockPrimary;          /* 2B: primary character block */
 113     BYTE  CharBlockSecondary;        /* 2C: secondary character block */
 114     BYTE  MiscFlags;                 /* 2D: miscellaneous flags */
 115     BYTE  NonVGASupport;             /* 2E: non-VGA mode support */
 116     BYTE  _reserved1[2];             /* 2F: */
 117     BYTE  VideoMem;                  /* 31: video memory available */
 118     BYTE  SavePointerState;          /* 32: save pointer state flags */
 119     BYTE  DisplayStatus;             /* 33: display information and status */
 120     BYTE  _reserved2[12];            /* 34: */
 121
 122 } VIDEOSTATE;
 123
 124 typedef struct
 125 {
 126     BYTE  ModeSupport[7];           /* 00: modes supported 1..7 */
 127     BYTE  ScanlineSupport;          /* 07: scan lines supported */
 128     BYTE  NumberCharBlocks;         /* 08: total number of character blocks */
 129     BYTE  ActiveCharBlocks;         /* 09: max. number of active character blocks */
 130     WORD  MiscFlags;                /* 0A: miscellaneous function support flags */
 131     WORD  _reserved1;               /* 0C: */
 132     BYTE  SavePointerFlags;         /* 0E: save pointer function flags */
 133     BYTE  _reserved2;               /* OF: */
 134
 135 } VIDEOFUNCTIONALITY;
 136
 137 typedef struct
 138 {
 139     DWORD Signature;
 140     BYTE  Minor;
 141     BYTE  Major;
 142     DWORD StaticVendorString;
 143     DWORD CapabilitiesFlags;
 144     DWORD StaticModeList;
 145 } VESAINFO;
 146
 147 /* layout of BIOS extra data starting at f000:e000 */
 148 typedef struct
 149 {
 150     VIDEOFUNCTIONALITY vid_func;
 151     VIDEOSTATE         vid_state;
 152     VESAINFO           vesa_info;
 153     char               vesa_string[32];
 154     WORD               vesa_modes[40];
 155 } BIOS_EXTRA;
 156
 157 #define BIOS_EXTRA_PTR    ((BIOS_EXTRA *)0xfe000)
 158 #define BIOS_EXTRA_SEGPTR MAKESEGPTR(0xf000,0xe000)
 159
 160 #include "poppack.h"
 161
 162 extern WORD DOSMEM_0000H;
 163 extern WORD DOSMEM_BiosDataSeg;
 164 extern WORD DOSMEM_BiosSysSeg;
 165
 166 /* msdos/dosmem.c */
 167 extern BOOL DOSMEM_Init(BOOL);
 168 extern void   DOSMEM_Tick(WORD timer);
 169 extern WORD   DOSMEM_AllocSelector(WORD);
 170 extern LPVOID DOSMEM_GetBlock(UINT size, WORD* p);
 171 extern BOOL DOSMEM_FreeBlock(void* ptr);
 172 extern LPVOID DOSMEM_ResizeBlock(void* ptr, UINT size, WORD* p);
 173 extern UINT DOSMEM_Available(void);
 174 extern LPVOID DOSMEM_MapRealToLinear(DWORD); /* real-mode to linear */
 175 extern LPVOID DOSMEM_MapDosToLinear(UINT); /* linear DOS to Wine */
 176 extern UINT DOSMEM_MapLinearToDos(LPVOID); /* linear Wine to DOS */
 177
 178 /* memory/instr.c */
 179 extern BOOL INSTR_EmulateInstruction( CONTEXT86 *context );
 180
 181 /* msdos/ioports.c */
 182 extern DWORD IO_inport( int port, int count );
 183 extern void IO_outport( int port, int count, DWORD value );
 184
 185 /* msdos/dpmi.c */
 186 extern BOOL DPMI_LoadDosSystem(void);
 187
 188 /* misc/ppdev.c */
 189 extern BOOL IO_pp_outp(int port, DWORD* res);
 190 extern int IO_pp_inp(int port, DWORD* res);
 191 extern char IO_pp_init(void);
 192
 193 #define PTR_REAL_TO_LIN(seg,off) \
 194    ((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))
 195
 196 /* NOTE: Interrupts might get called from four modes: real mode, 16-bit,
 197  *       32-bit segmented (DPMI32) and 32-bit linear (via DeviceIoControl).
 198  *       For automatic conversion of pointer
 199  *       parameters, interrupt handlers should use CTX_SEG_OFF_TO_LIN with
 200  *       the contents of a segment register as second and the contents of
 201  *       a *32-bit* general register as third parameter, e.g.
 202  *          CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EDX_reg(context) )
 203  *       This will generate a linear pointer in all three cases:
 204  *         Real-Mode:   Seg*16 + LOWORD(Offset)
 205  *         16-bit:      convert (Seg, LOWORD(Offset)) to linear
 206  *         32-bit segmented: convert (Seg, Offset) to linear
 207  *         32-bit linear:    use Offset as linear address (DeviceIoControl!)
 208  *
 209  *       Real-mode is recognized by checking the V86 bit in the flags register,
 210  *       32-bit linear mode is recognized by checking whether 'seg' is
 211  *       a system selector (0 counts also as 32-bit segment) and 32-bit
 212  *       segmented mode is recognized by checking whether 'seg' is 32-bit
 213  *       selector which is neither system selector nor zero.
 214  */
 215 #define CTX_SEG_OFF_TO_LIN(context,seg,off) \
 216     (ISV86(context) ? PTR_REAL_TO_LIN((seg),(off)) : \
 217      (!seg || IS_SELECTOR_SYSTEM(seg))? (void *)(ULONG_PTR)(off) : \
 218       (IS_SELECTOR_32BIT(seg) ? \
 219        (void *)((off) + (char*)MapSL(MAKESEGPTR((seg),0))) : \
 220        MapSL(MAKESEGPTR((seg),(off)))))
 221
 222 #define INT_BARF(context,num) \
 223     ERR( "int%x: unknown/not implemented parameters:\n" \
 224                      "int%x: AX %04x, BX %04x, CX %04x, DX %04x, " \
 225                      "SI %04x, DI %04x, DS %04x, ES %04x\n", \
 226              (num), (num), LOWORD((context)->Eax), LOWORD((context)->Ebx), \
 227              LOWORD((context)->Ecx), LOWORD((context)->Edx), LOWORD((context)->Esi), \
 228              LOWORD((context)->Edi), (WORD)(context)->SegDs, (WORD)(context)->SegEs )
 229
 230 /* Macros for easier access to i386 context registers */
 231
 232 #define AX_reg(context)      ((WORD)(context)->Eax)
 233 #define BX_reg(context)      ((WORD)(context)->Ebx)
 234 #define CX_reg(context)      ((WORD)(context)->Ecx)
 235 #define DX_reg(context)      ((WORD)(context)->Edx)
 236 #define SI_reg(context)      ((WORD)(context)->Esi)
 237 #define DI_reg(context)      ((WORD)(context)->Edi)
 238
 239 #define AL_reg(context)      ((BYTE)(context)->Eax)
 240 #define AH_reg(context)      ((BYTE)((context)->Eax >> 8))
 241 #define BL_reg(context)      ((BYTE)(context)->Ebx)
 242 #define BH_reg(context)      ((BYTE)((context)->Ebx >> 8))
 243 #define CL_reg(context)      ((BYTE)(context)->Ecx)
 244 #define CH_reg(context)      ((BYTE)((context)->Ecx >> 8))
 245 #define DL_reg(context)      ((BYTE)(context)->Edx)
 246 #define DH_reg(context)      ((BYTE)((context)->Edx >> 8))
 247
 248 #define SET_CFLAG(context)   ((context)->EFlags |= 0x0001)
 249 #define RESET_CFLAG(context) ((context)->EFlags &= ~0x0001)
 250 #define SET_ZFLAG(context)   ((context)->EFlags |= 0x0040)
 251 #define RESET_ZFLAG(context) ((context)->EFlags &= ~0x0040)
 252 #define ISV86(context)       ((context)->EFlags & 0x00020000)
 253
 254 #define SET_AX(context,val)  ((context)->Eax = ((context)->Eax & ~0xffff) | (WORD)(val))
 255 #define SET_BX(context,val)  ((context)->Ebx = ((context)->Ebx & ~0xffff) | (WORD)(val))
 256 #define SET_CX(context,val)  ((context)->Ecx = ((context)->Ecx & ~0xffff) | (WORD)(val))
 257 #define SET_DX(context,val)  ((context)->Edx = ((context)->Edx & ~0xffff) | (WORD)(val))
 258 #define SET_SI(context,val)  ((context)->Esi = ((context)->Esi & ~0xffff) | (WORD)(val))
 259 #define SET_DI(context,val)  ((context)->Edi = ((context)->Edi & ~0xffff) | (WORD)(val))
 260
 261 #define SET_AL(context,val)  ((context)->Eax = ((context)->Eax & ~0xff) | (BYTE)(val))
 262 #define SET_BL(context,val)  ((context)->Ebx = ((context)->Ebx & ~0xff) | (BYTE)(val))
 263 #define SET_CL(context,val)  ((context)->Ecx = ((context)->Ecx & ~0xff) | (BYTE)(val))
 264 #define SET_DL(context,val)  ((context)->Edx = ((context)->Edx & ~0xff) | (BYTE)(val))
 265
 266 #define SET_AH(context,val)  ((context)->Eax = ((context)->Eax & ~0xff00) | (((BYTE)(val)) << 8))
 267 #define SET_BH(context,val)  ((context)->Ebx = ((context)->Ebx & ~0xff00) | (((BYTE)(val)) << 8))
 268 #define SET_CH(context,val)  ((context)->Ecx = ((context)->Ecx & ~0xff00) | (((BYTE)(val)) << 8))
 269 #define SET_DH(context,val)  ((context)->Edx = ((context)->Edx & ~0xff00) | (((BYTE)(val)) << 8))
 270
 271 #endif /* __WINE_MISCEMU_H */