2 * Misc. emulation definitions
4 * Copyright 1995 Alexandre Julliard
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.
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.
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
21 #ifndef __WINE_MISCEMU_H
22 #define __WINE_MISCEMU_H
25 #include "selectors.h"
26 #include "wine/windef16.h"
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 */
91 extern WORD DOSMEM_0000H;
92 extern WORD DOSMEM_BiosDataSeg;
93 extern WORD DOSMEM_BiosSysSeg;
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 */
108 extern BOOL INSTR_EmulateInstruction( CONTEXT86 *context );
110 /* msdos/ioports.c */
111 extern DWORD IO_inport( int port, int count );
112 extern void IO_outport( int port, int count, DWORD value );
115 extern BOOL DPMI_LoadDosSystem(void);
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);
122 #define PTR_REAL_TO_LIN(seg,off) \
123 ((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))
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!)
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.
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)))
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 )
155 /* Macros for easier access to i386 context registers */
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)
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))
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)
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)))
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)))
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)))
196 #endif /* __WINE_MISCEMU_H */