4 * Copyright 1995 Alexandre Julliard
18 HANDLE DOSMEM_BiosSeg
; /* BIOS data segment at 0x40:0 */
25 WORD Com1Addr
; /* 00: COM1 I/O address */
26 WORD Com2Addr
; /* 02: COM2 I/O address */
27 WORD Com3Addr
; /* 04: COM3 I/O address */
28 WORD Com4Addr
; /* 06: COM4 I/O address */
29 WORD Lpt1Addr
; /* 08: LPT1 I/O address */
30 WORD Lpt2Addr
; /* 0a: LPT2 I/O address */
31 WORD Lpt3Addr
; /* 0c: LPT3 I/O address */
32 WORD Lpt4Addr
; /* 0e: LPT4 I/O address */
33 WORD InstalledHardware
; /* 10: Installed hardware flags */
34 BYTE POSTstatus
; /* 12: Power-On Self Test status */
35 WORD MemSize WINE_PACKED
; /* 13: Base memory size in Kb */
36 WORD unused1 WINE_PACKED
; /* 15: Manufacturing test scratch pad */
37 BYTE KbdFlags1
; /* 17: Keyboard flags 1 */
38 BYTE KbdFlags2
; /* 18: Keyboard flags 2 */
39 BYTE unused2
; /* 19: Keyboard driver workspace */
40 WORD NextKbdCharPtr
; /* 1a: Next character in kbd buffer */
41 WORD FirstKbdCharPtr
; /* 1c: First character in kbd buffer */
42 WORD KbdBuffer
[16]; /* 1e: Keyboard buffer */
43 BYTE DisketteStatus1
; /* 3e: Diskette recalibrate status */
44 BYTE DisketteStatus2
; /* 3f: Diskette motor status */
45 BYTE DisketteStatus3
; /* 40: Diskette motor timeout */
46 BYTE DisketteStatus4
; /* 41: Diskette last operation status */
47 BYTE DiskStatus
[7]; /* 42: Disk status/command bytes */
48 BYTE VideoMode
; /* 49: Video mode */
49 WORD VideoColumns
; /* 4a: Number of columns */
50 WORD VideoPageSize
; /* 4c: Video page size in bytes */
51 WORD VideoPageStartAddr
; /* 4e: Video page start address */
52 BYTE VideoCursorPos
[16]; /* 50: Cursor position for 8 pages */
53 WORD VideoCursorType
; /* 60: Video cursor type */
54 BYTE VideoCurPage
; /* 62: Video current page */
55 WORD VideoCtrlAddr WINE_PACKED
; /* 63: Video controller address */
56 BYTE VideoReg1
; /* 65: Video mode select register */
57 BYTE VideoReg2
; /* 66: Video CGA palette register */
58 DWORD ResetEntry WINE_PACKED
; /* 67: Warm reset entry point */
59 BYTE LastIRQ
; /* 6b: Last unexpected interrupt */
60 DWORD Ticks
; /* 6c: Ticks since midnight */
61 BYTE TicksOverflow
; /* 70: Timer overflow if past midnight */
62 BYTE CtrlBreakFlag
; /* 71: Ctrl-Break flag */
63 WORD ResetFlag
; /* 72: POST Reset flag */
64 BYTE DiskOpStatus
; /* 74: Last hard-disk operation status */
65 BYTE NbHardDisks
; /* 75: Number of hard disks */
66 BYTE DiskCtrlByte
; /* 76: Disk control byte */
67 BYTE DiskIOPort
; /* 77: Disk I/O port offset */
68 BYTE LptTimeout
[4]; /* 78: Timeouts for parallel ports */
69 BYTE ComTimeout
[4]; /* 7c: Timeouts for serial ports */
70 WORD KbdBufferStart
; /* 80: Keyboard buffer start */
71 WORD KbdBufferEnd
; /* 82: Keyboard buffer end */
77 static BIOSDATA
*pBiosData
= NULL
;
80 /***********************************************************************
83 * Create the dos memory segments, and store them into the KERNEL
84 * exported values. MODULE_Init() must already have been called.
86 BOOL
DOSMEM_Init(void)
88 HMODULE hModule
= GetModuleHandle( "KERNEL" );
91 /* Allocate 7 64k segments for 0000, A000, B000, C000, D000, E000, F000. */
93 dosmem
= malloc( 0x70000 );
95 MODULE_SetEntryPoint( hModule
, 183, /* KERNEL.183: __0000H */
96 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
,
97 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
98 DOSMEM_BiosSeg
= GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x400, 0x100,
99 hModule
, FALSE
, FALSE
, FALSE
, NULL
);
101 MODULE_SetEntryPoint( hModule
, 193, /* KERNEL.193: __0040H */
103 MODULE_SetEntryPoint( hModule
, 174, /* KERNEL.174: __A000H */
104 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x10000,
105 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
106 MODULE_SetEntryPoint( hModule
, 181, /* KERNEL.181: __B000H */
107 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x20000,
108 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
109 MODULE_SetEntryPoint( hModule
, 182, /* KERNEL.182: __B800H */
110 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x28000,
111 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
112 MODULE_SetEntryPoint( hModule
, 195, /* KERNEL.195: __C000H */
113 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x30000,
114 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
115 MODULE_SetEntryPoint( hModule
, 179, /* KERNEL.179: __D000H */
116 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x40000,
117 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
118 MODULE_SetEntryPoint( hModule
, 190, /* KERNEL.190: __E000H */
119 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x50000,
120 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
121 MODULE_SetEntryPoint( hModule
, 173, /* KERNEL.173: __ROMBIOS */
122 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x60000,
123 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
124 MODULE_SetEntryPoint( hModule
, 194, /* KERNEL.194: __F000H */
125 GLOBAL_CreateBlock( GMEM_FIXED
, dosmem
+ 0x60000,
126 0x10000, hModule
, FALSE
, FALSE
, FALSE
, NULL
));
127 DOSMEM_FillBiosSegment();
133 /***********************************************************************
136 * Increment the BIOS tick counter.
138 static void DOSMEM_Alarm(void)
140 pBiosData
->Ticks
= INT1A_GetTicksSinceMidnight();
141 printf( "Ticks = %ld\n", pBiosData
->Ticks
);
143 signal( SIGALRM, DOSMEM_Alarm );
149 /***********************************************************************
150 * DOSMEM_FillBiosSegment
152 * Fill the BIOS data segment with dummy values.
154 void DOSMEM_FillBiosSegment(void)
156 pBiosData
= (BIOSDATA
*)GlobalLock( DOSMEM_BiosSeg
);
158 /* Clear all unused values */
159 memset( pBiosData
, 0, sizeof(*pBiosData
) );
161 /* FIXME: should check the number of configured drives and ports */
163 pBiosData
->Com1Addr
= 0x3e8;
164 pBiosData
->Com2Addr
= 0x2e8;
165 pBiosData
->Lpt1Addr
= 0x378;
166 pBiosData
->Lpt2Addr
= 0x278;
167 pBiosData
->InstalledHardware
= 0x8443;
168 pBiosData
->MemSize
= 640;
169 pBiosData
->NextKbdCharPtr
= 0x1e;
170 pBiosData
->FirstKbdCharPtr
= 0x1e;
171 pBiosData
->VideoMode
= 0;
172 pBiosData
->VideoColumns
= 80;
173 pBiosData
->VideoPageSize
= 80 * 25 * 2;
174 pBiosData
->VideoPageStartAddr
= 0xb800;
175 pBiosData
->VideoCtrlAddr
= 0x3d4;
176 pBiosData
->Ticks
= INT1A_GetTicksSinceMidnight();
177 pBiosData
->NbHardDisks
= 2;
178 pBiosData
->KbdBufferStart
= 0x1e;
179 pBiosData
->KbdBufferEnd
= 0x3e;
182 signal( SIGALRM, DOSMEM_Alarm );