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/dosmem.c */
  29 #include "pshpack1.h"
  30
  31 typedef struct
  32 {
  33     WORD  Com1Addr;                  /* 00: COM1 I/O address */
  34     WORD  Com2Addr;                  /* 02: COM2 I/O address */
  35     WORD  Com3Addr;                  /* 04: COM3 I/O address */
  36     WORD  Com4Addr;                  /* 06: COM4 I/O address */
  37     WORD  Lpt1Addr;                  /* 08: LPT1 I/O address */
  38     WORD  Lpt2Addr;                  /* 0a: LPT2 I/O address */
  39     WORD  Lpt3Addr;                  /* 0c: LPT3 I/O address */
  40     WORD  Lpt4Addr;                  /* 0e: LPT4 I/O address */
  41     WORD  InstalledHardware;         /* 10: Installed hardware flags */
  42     BYTE  POSTstatus;                /* 12: Power-On Self Test status */
  43     WORD  MemSize WINE_PACKED;       /* 13: Base memory size in Kb */
  44     WORD  unused1 WINE_PACKED;       /* 15: Manufacturing test scratch pad */
  45     BYTE  KbdFlags1;                 /* 17: Keyboard flags 1 */
  46     BYTE  KbdFlags2;                 /* 18: Keyboard flags 2 */
  47     BYTE  unused2;                   /* 19: Keyboard driver workspace */
  48     WORD  NextKbdCharPtr;            /* 1a: Next character in kbd buffer */
  49     WORD  FirstKbdCharPtr;           /* 1c: First character in kbd buffer */
  50     WORD  KbdBuffer[16];             /* 1e: Keyboard buffer */
  51     BYTE  DisketteStatus1;           /* 3e: Diskette recalibrate status */
  52     BYTE  DisketteStatus2;           /* 3f: Diskette motor status */
  53     BYTE  DisketteStatus3;           /* 40: Diskette motor timeout */
  54     BYTE  DisketteStatus4;           /* 41: Diskette last operation status */
  55     BYTE  DiskStatus[7];             /* 42: Disk status/command bytes */
  56     BYTE  VideoMode;                 /* 49: Video mode */
  57     WORD  VideoColumns;              /* 4a: Number of columns */
  58     WORD  VideoPageSize;             /* 4c: Video page size in bytes */
  59     WORD  VideoPageStartAddr;        /* 4e: Video page start address */
  60     BYTE  VideoCursorPos[16];        /* 50: Cursor position for 8 pages, column/row order */
  61     WORD  VideoCursorType;           /* 60: Video cursor type */
  62     BYTE  VideoCurPage;              /* 62: Video current page */
  63     WORD  VideoCtrlAddr WINE_PACKED; /* 63: Video controller address */
  64     BYTE  VideoReg1;                 /* 65: Video mode select register */
  65     BYTE  VideoReg2;                 /* 66: Video CGA palette register */
  66     DWORD ResetEntry WINE_PACKED;    /* 67: Warm reset entry point */
  67     BYTE  LastIRQ;                   /* 6b: Last unexpected interrupt */
  68     DWORD Ticks;                     /* 6c: Ticks since midnight */
  69     BYTE  TicksOverflow;             /* 70: Timer overflow if past midnight */
  70     BYTE  CtrlBreakFlag;             /* 71: Ctrl-Break flag */
  71     WORD  ResetFlag;                 /* 72: POST Reset flag */
  72     BYTE  DiskOpStatus;              /* 74: Last hard-disk operation status */
  73     BYTE  NbHardDisks;               /* 75: Number of hard disks */
  74     BYTE  DiskCtrlByte;              /* 76: Disk control byte */
  75     BYTE  DiskIOPort;                /* 77: Disk I/O port offset */
  76     BYTE  LptTimeout[4];             /* 78: Timeouts for parallel ports */
  77     BYTE  ComTimeout[4];             /* 7c: Timeouts for serial ports */
  78     WORD  KbdBufferStart;            /* 80: Keyboard buffer start */
  79     WORD  KbdBufferEnd;              /* 82: Keyboard buffer end */
  80     BYTE  RowsOnScreenMinus1;        /* 84: EGA only */
  81     WORD  BytesPerChar WINE_PACKED;  /* 85: EGA only */
  82     BYTE  ModeOptions;               /* 87: EGA only */
  83     BYTE  FeatureBitsSwitches;       /* 88: EGA only */
  84     BYTE  VGASettings;               /* 89: VGA misc settings */
  85     BYTE  DisplayCombination;        /* 8A: VGA display combinations */
  86     BYTE  DiskDataRate;              /* 8B: Last disk data rate selected */
  87 } BIOSDATA;
  88
  89 #include "poppack.h"
  90
  91 extern WORD DOSMEM_0000H;
  92 extern WORD DOSMEM_BiosDataSeg;
  93 extern WORD DOSMEM_BiosSysSeg;
  94
  95 /* msdos/dosmem.c */
  96 extern BOOL DOSMEM_Init(BOOL);
  97 extern void   DOSMEM_Tick(WORD timer);
  98 extern WORD   DOSMEM_AllocSelector(WORD);
  99 extern LPVOID DOSMEM_GetBlock(UINT size, WORD* p);
 100 extern BOOL DOSMEM_FreeBlock(void* ptr);
 101 extern UINT DOSMEM_ResizeBlock(void* ptr, UINT size, BOOL exact);
 102 extern UINT DOSMEM_Available(void);
 103 extern LPVOID DOSMEM_MapRealToLinear(DWORD); /* real-mode to linear */
 104 extern LPVOID DOSMEM_MapDosToLinear(UINT); /* linear DOS to Wine */
 105 extern UINT DOSMEM_MapLinearToDos(LPVOID); /* linear Wine to DOS */
 106
 107 /* memory/instr.c */
 108 extern DWORD INSTR_EmulateInstruction( CONTEXT86 *context );
 109
 110 /* msdos/ioports.c */
 111 extern DWORD IO_inport( int port, int count );
 112 extern void IO_outport( int port, int count, DWORD value );
 113
 114 /* msdos/dpmi.c */
 115 extern BOOL DPMI_LoadDosSystem(void);
 116
 117 /* misc/ppdev.c */
 118 extern BOOL IO_pp_outp(int port, DWORD* res);
 119 extern int IO_pp_inp(int port, DWORD* res);
 120 extern char IO_pp_init(void);
 121
 122 #define PTR_REAL_TO_LIN(seg,off) \
 123    ((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))
 124
 125 /* NOTE: Interrupts might get called from four modes: real mode, 16-bit,
 126  *       32-bit segmented (DPMI32) and 32-bit linear (via DeviceIoControl).
 127  *       For automatic conversion of pointer
 128  *       parameters, interrupt handlers should use CTX_SEG_OFF_TO_LIN with
 129  *       the contents of a segment register as second and the contents of
 130  *       a *32-bit* general register as third parameter, e.g.
 131  *          CTX_SEG_OFF_TO_LIN( context, DS_reg(context), EDX_reg(context) )
 132  *       This will generate a linear pointer in all three cases:
 133  *         Real-Mode:   Seg*16 + LOWORD(Offset)
 134  *         16-bit:      convert (Seg, LOWORD(Offset)) to linear
 135  *         32-bit segmented: convert (Seg, Offset) to linear
 136  *         32-bit linear:    use Offset as linear address (DeviceIoControl!)
 137  *
 138  *       Real-mode is recognized by checking the V86 bit in the flags register,
 139  *       32-bit linear mode is recognized by checking whether 'seg' is
 140  *       a system selector (0 counts also as 32-bit segment) and 32-bit
 141  *       segmented mode is recognized by checking whether 'seg' is 32-bit
 142  *       selector which is neither system selector nor zero.
 143  */
 144 #define CTX_SEG_OFF_TO_LIN(context,seg,off) \
 145     (ISV86(context) ? PTR_REAL_TO_LIN((seg),(off)) : wine_ldt_get_ptr((seg),(off)))
 146
 147 #define INT_BARF(context,num) \
 148     ERR( "int%x: unknown/not implemented parameters:\n" \
 149                      "int%x: AX %04x, BX %04x, CX %04x, DX %04x, " \
 150                      "SI %04x, DI %04x, DS %04x, ES %04x\n", \
 151              (num), (num), LOWORD((context)->Eax), LOWORD((context)->Ebx), \
 152              LOWORD((context)->Ecx), LOWORD((context)->Edx), LOWORD((context)->Esi), \
 153              LOWORD((context)->Edi), (WORD)(context)->SegDs, (WORD)(context)->SegEs )
 154
 155 /* Macros for easier access to i386 context registers */
 156
 157 #define AX_reg(context)      ((WORD)(context)->Eax)
 158 #define BX_reg(context)      ((WORD)(context)->Ebx)
 159 #define CX_reg(context)      ((WORD)(context)->Ecx)
 160 #define DX_reg(context)      ((WORD)(context)->Edx)
 161 #define SI_reg(context)      ((WORD)(context)->Esi)
 162 #define DI_reg(context)      ((WORD)(context)->Edi)
 163
 164 #define AL_reg(context)      ((BYTE)(context)->Eax)
 165 #define AH_reg(context)      ((BYTE)((context)->Eax >> 8))
 166 #define BL_reg(context)      ((BYTE)(context)->Ebx)
 167 #define BH_reg(context)      ((BYTE)((context)->Ebx >> 8))
 168 #define CL_reg(context)      ((BYTE)(context)->Ecx)
 169 #define CH_reg(context)      ((BYTE)((context)->Ecx >> 8))
 170 #define DL_reg(context)      ((BYTE)(context)->Edx)
 171 #define DH_reg(context)      ((BYTE)((context)->Edx >> 8))
 172
 173 #define SET_CFLAG(context)   ((context)->EFlags |= 0x0001)
 174 #define RESET_CFLAG(context) ((context)->EFlags &= ~0x0001)
 175 #define SET_ZFLAG(context)   ((context)->EFlags |= 0x0040)
 176 #define RESET_ZFLAG(context) ((context)->EFlags &= ~0x0040)
 177 #define ISV86(context)       ((context)->EFlags & 0x00020000)
 178
 179 #define SET_AX(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xffff) | (WORD)(val)))
 180 #define SET_BX(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xffff) | (WORD)(val)))
 181 #define SET_CX(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xffff) | (WORD)(val)))
 182 #define SET_DX(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xffff) | (WORD)(val)))
 183 #define SET_SI(context,val)  ((void)((context)->Esi = ((context)->Esi & ~0xffff) | (WORD)(val)))
 184 #define SET_DI(context,val)  ((void)((context)->Edi = ((context)->Edi & ~0xffff) | (WORD)(val)))
 185
 186 #define SET_AL(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff) | (BYTE)(val)))
 187 #define SET_BL(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff) | (BYTE)(val)))
 188 #define SET_CL(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff) | (BYTE)(val)))
 189 #define SET_DL(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff) | (BYTE)(val)))
 190
 191 #define SET_AH(context,val)  ((void)((context)->Eax = ((context)->Eax & ~0xff00) | (((BYTE)(val)) << 8)))
 192 #define SET_BH(context,val)  ((void)((context)->Ebx = ((context)->Ebx & ~0xff00) | (((BYTE)(val)) << 8)))
 193 #define SET_CH(context,val)  ((void)((context)->Ecx = ((context)->Ecx & ~0xff00) | (((BYTE)(val)) << 8)))
 194 #define SET_DH(context,val)  ((void)((context)->Edx = ((context)->Edx & ~0xff00) | (((BYTE)(val)) << 8)))
 195
 196 #endif /* __WINE_MISCEMU_H */