2 * BIOS interrupt 10h handler
4 * Copyright 1998 Ove Kåven
5 * Copyright 1998 Joseph Pranevich
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "wine/debug.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(int);
33 * Display combination code for active display.
37 * 01 - monochrome adapter w/ monochrome display
38 * 02 - CGA w/ color display
40 * 04 - EGA w/ color display
41 * 05 - EGA w/ monochrome display
42 * 06 - PGA w/ color display
43 * 07 - VGA w/ monochrome analog display
44 * 08 - VGA w/ color analog display
46 * 0A - MCGA w/ digital color display
47 * 0B - MCGA w/ monochrome analog display
48 * 0C - MCGA w/ color analog display
49 * FF - unknown display type
51 #define INT10_DCC 0x08
56 * Structure for DOS data that can be accessed directly from applications.
57 * This structure must be correctly packed.
59 typedef struct _INT10_HEAP {
60 BYTE StaticModeSupport[7]; /* modes supported 1..7 */
61 BYTE StaticScanlineSupport; /* scan lines supported */
62 BYTE StaticNumberCharBlocks; /* total number of char blocks */
63 BYTE StaticActiveCharBlocks; /* max number of active char blocks */
64 WORD StaticMiscFlags; /* misc function support flags */
65 WORD StaticReserved1; /* reserved */
66 BYTE StaticSavePointerFlags; /* save pointer function flags */
67 BYTE StaticReserved2; /* reserved */
70 WORD VesaModeList[64];
72 char VesaProductName[32];
73 char VesaProductRev[32];
74 char VesaVendorName[32];
80 * Structure for VBE Mode Info Block. See the VBE 3.0 standard for details.
81 * This structure must be correctly packed.
83 struct _ModeInfoBlock {
84 WORD ModeAttributes; /* 0x00 */
85 BYTE WinAAttributes; /* 0x02 */
86 BYTE WinBAttributes; /* 0x03 */
87 WORD WinGranularity; /* 0x04 */
88 WORD WinSize; /* 0x06 */
89 WORD WinASegment; /* 0x08 */
90 WORD WinBSegment; /* 0x0A */
91 DWORD WinFuncPtr; /* 0x0C */
92 WORD BytesPerScanLine; /* 0x10 */
93 /* mandatory for VBE 1.2+ */
94 WORD XResolution; /* 0x12 */
95 WORD YResolution; /* 0x14 */
96 BYTE XCharSize; /* 0x16 */
97 BYTE YCharSize; /* 0x17 */
98 BYTE NumberOfPlanes; /* 0x18 */
99 BYTE BitsPerPixel; /* 0x19 */
100 BYTE NumberOfBanks; /* 0x1A */
101 BYTE MemoryModel; /* 0x1B */
102 BYTE BankSize; /* 0x1C */
103 BYTE NumberOfImagePages; /* 0x1D */
104 BYTE Reserved1; /* 0x1E */
105 BYTE RedMaskSize; /* 0x1F */
106 BYTE RedFieldPosition; /* 0x20 */
107 BYTE GreenMaskSize; /* 0x21 */
108 BYTE GreenFieldPosition; /* 0x22 */
109 BYTE BlueMaskSize; /* 0x23 */
110 BYTE BlueFieldPosition; /* 0x24 */
111 BYTE RsvdMaskSize; /* 0x25 */
112 BYTE RsvdFieldPosition; /* 0x26 */
113 BYTE DirectColorModeInfo; /* 0x27 */
114 /* mandatory for VBE 2.0+ */
115 DWORD PhysBasePtr; /* 0x28 */
116 DWORD Reserved2; /* 0x2C */
117 WORD Reserved3; /* 0x30 */
118 /* mandatory for VBE 3.0+ */
119 WORD LinBytesPerScanLine; /* 0x32 */
120 BYTE BnkNumberOfImagePages;/* 0x34 */
121 BYTE LinNumberOfImagePages;/* 0x35 */
122 BYTE LinRedMaskSize; /* 0x36 */
123 BYTE LinRedFieldPosition; /* 0x37 */
124 BYTE LinGreenMaskSize; /* 0x38 */
125 BYTE LinGreenFieldPosition;/* 0x39 */
126 BYTE LinBlueMaskSize; /* 0x3A */
127 BYTE LinBlueFieldPosition; /* 0x3B */
128 BYTE LinRsvdMaskSize; /* 0x3C */
129 BYTE LinRsvdFieldPosition; /* 0x3D */
130 DWORD MaxPixelClock; /* 0x3E */
131 BYTE Reserved4[190]; /* 0x42 */
137 * Wine internal information about video modes.
138 * If depth is zero, the mode is considered to
150 * List of supported video modes.
152 static const INT10_MODE INT10_modelist[] =
159 {0x000d, 320, 200, 4},
160 {0x000e, 640, 200, 4},
161 {0x0010, 640, 350, 4},
162 {0x0012, 640, 480, 4},
163 {0x0013, 320, 200, 8},
164 {0x006a, 800, 600, 4}, /* VESA mode, same as 0x102 */
165 {0x0100, 640, 400, 8},
166 {0x0101, 640, 480, 8},
167 {0x0102, 800, 600, 4},
168 {0x0103, 800, 600, 8},
169 {0x0104, 1024, 768, 4},
170 {0x0105, 1024, 768, 8},
171 {0x0106, 1280, 1024, 4},
172 {0x0107, 1280, 1024, 8},
174 {0x0109, 132, 25, 0},
175 {0x010a, 132, 43, 0},
176 {0x010b, 132, 50, 0},
177 {0x010c, 132, 60, 0},
178 {0x010d, 320, 200, 15},
179 {0x010e, 320, 200, 16},
180 {0x010f, 320, 200, 24},
181 {0x0110, 640, 480, 15},
182 {0x0111, 640, 480, 16},
183 {0x0112, 640, 480, 24},
184 {0x0113, 800, 600, 15},
185 {0x0114, 800, 600, 16},
186 {0x0115, 800, 600, 24},
187 {0x0116, 1024, 768, 15},
188 {0x0117, 1024, 768, 16},
189 {0x0118, 1024, 768, 24},
190 {0x0119, 1280, 1024, 15},
191 {0x011a, 1280, 1024, 16},
192 {0x011b, 1280, 1024, 24},
196 /* True if video mode is a vesa mode, false otherwise.
197 * More correct would be to use something like (x > 0xff || x == 0x6a)
198 * but as long as we have only the standard VGA and VESA modes this is ok too */
199 #define IS_VESA_MODE(x) ((x) >= 0x6a)
201 /* Forward declarations. */
202 static INT10_HEAP *INT10_GetHeap(void);
203 static void INT10_SetCursorPos(BIOSDATA*, unsigned, unsigned, unsigned);
206 /**********************************************************************
209 static const INT10_MODE *INT10_FindMode( WORD mode )
211 const INT10_MODE *ptr = INT10_modelist;
218 while (ptr->Mode != 0xffff)
220 if (ptr->Mode == mode)
229 /**********************************************************************
230 * INT10_FillControllerInformation
232 * Fill 256-byte (VBE1.x) or 512-byte buffer (VBE2.0+) with
233 * capabilities of the video controller.
235 static void INT10_FillControllerInformation( BYTE *buffer )
237 INT10_HEAP *heap = INT10_GetHeap();
239 /* 00 - BYTE[4]: signature */
240 memmove( buffer, "VESA", 4 );
242 /* 04 - WORD: version number */
243 *(WORD*)(buffer + 4) = 0x0300; /* version 3.0 */
245 /* 06 - DWORD: pointer to OEM name */
246 *(SEGPTR*)(buffer + 6) = MAKESEGPTR( heap->WineHeapSegment,
251 * 10 - DWORD: capabilities flags
253 * 0 - DAC can be switched into 8-bit mode
254 * 1 - non-VGA controller
255 * 2 - programmed DAC with blank bit
256 * 3 - controller supports hardware stereoscopic signalling
257 * 4 - =0 stereo signalling via external VESA stereo connector
258 * =1 stereo signalling via VESA EVC connector
259 * 5 - controller supports hardware mouse cursor
260 * 6 - controller supports hardware clipping
261 * 7 - controller supports transparent BitBLT
262 * 8-31 - reserved (0)
264 *(DWORD*)(buffer + 10) = 0; /* FIXME */
266 /* 14 - DWORD: pointer to list of supported VESA and OEM video modes */
267 *(SEGPTR*)(buffer + 14) = MAKESEGPTR( heap->WineHeapSegment,
271 /* 18 - WORD: total amount of video memory in 64K blocks */
272 *(WORD*)(buffer + 18) = 16; /* FIXME */
274 /* 20 - WORD: OEM software version (BCD, high byte = major) */
275 *(WORD*)(buffer + 20) = 0x0100; /* version 1.0 */
277 /* 22 - DWORD: pointer to vendor name */
278 *(SEGPTR*)(buffer + 22) = MAKESEGPTR( heap->WineHeapSegment,
282 /* 26 - DWORD: pointer to product name */
283 *(SEGPTR*)(buffer + 26) = MAKESEGPTR( heap->WineHeapSegment,
287 /* 30 - DWORD: pointer to product revision string */
288 *(SEGPTR*)(buffer + 30) = MAKESEGPTR( heap->WineHeapSegment,
292 /* 34 - WORD: VBE/AF version (if capabilities bit 3 set) */
293 *(WORD*)(buffer + 34) = 0;
296 * 36 - DWORD: pointer to list of accelerated modes
297 * (if capabilities bit 3 set)
299 *(SEGPTR*)(buffer + 36) = 0;
301 /* 40 - BYTE[216]: reserved for VBE implementation, set to zero */
302 memset( buffer + 40, 0, 216 );
305 * 256 - BYTE[256]: reserved for VBE3.0 implementation,
306 * ignored in order to support older programs
311 /**********************************************************************
312 * INT10_FillModeInformation
314 * Fill 256-byte buffer with extended information about display mode.
316 * Returns FALSE if mode is unknown and TRUE is mode is known
317 * even if it is not supported.
319 static BOOL INT10_FillModeInformation( struct _ModeInfoBlock *mib, WORD mode )
321 const INT10_MODE *ptr = INT10_FindMode( mode );
326 * 00 - WORD: mode attributes
328 * 0 - Mode supported by present hardware configuration.
329 * 1 - Optional information available. Must be =1 for VBE v1.2+.
330 * 2 - BIOS output supported.
331 * Int10 functions 01, 02, 06, 07, 09, 0a and 0e are supported.
332 * 3 - Set if color, clear if monochrome.
333 * 4 - Set if graphics mode, clear if text mode.
334 * 5 - Mode is not VGA-compatible if set.
335 * VGA-compatible modes support standard VGA I/O ports.
336 * 6 - Bank-switched (or windowed) mode is not supported if set.
337 * 7 - Linear framebuffer mode supported.
338 * 8 - Double scanning supported.
339 * 9 - Interlaced operation supported.
340 * 10 - Triple buffering supported.
341 * 11 - Stereoscopic display supported.
342 * 12 - Dual display start address supported.
346 WORD attr = 0x000a; /* color mode, optional info */
349 * FIXME: Attribute handling is incomplete.
352 /* Mode supported? FIXME: correct value */
355 /* Graphical mode? */
359 /* Not VGA-compatible? */
360 if (IS_VESA_MODE(mode))
363 mib->ModeAttributes = attr;
367 * 02 - BYTE[2]: window attributes, window A and window B
370 * 1 - Window is readable.
371 * 2 - Window is writable.
374 mib->WinAAttributes = 0x07; /* window A exists, readable and writable */
375 mib->WinBAttributes = 0x00; /* window B not supported */
377 /* 04 - WORD: window granularity in KB */
378 mib->WinGranularity = 64;
380 /* 06 - WORD: window size in KB */
383 /* 08 - WORD[2]: start segments, window A and window B */
384 mib->WinASegment = 0xa000; /* window A segment */
385 mib->WinBSegment = 0x0000; /* window B not supported */
387 /* 12 - DWORD: window positioning function */
388 mib->WinFuncPtr = 0; /* not supported */
390 /* 16 - WORD: bytes per scan line */
391 /* FIXME: is this always correct? */
392 mib->BytesPerScanLine = ptr->Width * (ptr->Depth ? (ptr->Depth + 7) / 8 : 1);
394 /* 18 - WORD: width in pixels (graphics) or characters (text) */
395 mib->XResolution = ptr->Width;
397 /* 20 - WORD: height in pixels (graphics) or characters (text) */
398 mib->YResolution = ptr->Height;
400 /* 22 - BYTE: width of character cell in pixels */
401 mib->XCharSize = 0; /* FIXME */
403 /* 23 - BYTE: height of character cell in pixels */
404 mib->YCharSize = 0; /* FIXME */
406 /* 24 - BYTE: number of memory planes */
407 mib->NumberOfPlanes = 1; /* FIXME */
409 /* 25 - BYTE: number of bits per pixel */
410 mib->BitsPerPixel = ptr->Depth; /* FIXME: text modes? reserved bits? */
412 /* 26 - BYTE: number of banks */
413 mib->NumberOfBanks = 1; /* FIXME */
416 * 27 - BYTE: memory model type
420 * 02 - Hercules graphics
423 * 05 - Non-chain 4, 256 color
426 * 08-0F - Reserved for VESA.
427 * 10-FF - OEM memory models.
430 mib->MemoryModel = 0; /* text mode */
432 mib->MemoryModel = 3; /* FIXME */
434 /* 28 - BYTE: size of bank in KB */
435 mib->BankSize = 0; /* FIXME */
437 /* 29 - BYTE: number of image pages (less one) in video RAM */
438 mib->NumberOfImagePages = 0; /* FIXME */
440 /* 30 - BYTE: reserved (0x00 for VBE 1.0-2.0, 0x01 for VBE 3.0) */
441 mib->Reserved1 = 0x01;
444 * 31,33,35 - BYTE: red/green/blue mask size
445 * Size of red/green/blue color component in bits.
446 * 32,34,36 - BYTE: red/green/blue field position
447 * Bit position of the least significant bit of red/green/blue color
449 * Both should be only used when the memory model is direct color or YUV
450 * but "Imperium Romanum" uses this field even when the memory model is
451 * planar. So always fill this field when we have a depth bigger than 8,
452 * otherwise set them to zero.
454 switch (ptr->Depth) {
456 mib->RedMaskSize = 8;
457 mib->GreenMaskSize = 8;
458 mib->BlueMaskSize = 8;
459 mib->RsvdMaskSize = 0;
460 mib->RedFieldPosition = 16;
461 mib->GreenFieldPosition = 8;
462 mib->BlueFieldPosition = 0;
463 mib->RsvdFieldPosition = 0;
466 mib->RedMaskSize = 5;
467 mib->GreenMaskSize = 6;
468 mib->BlueMaskSize = 5;
469 mib->RsvdMaskSize = 0;
470 mib->RedFieldPosition = 11;
471 mib->GreenFieldPosition = 5;
472 mib->BlueFieldPosition = 0;
473 mib->RsvdFieldPosition = 0;
476 mib->RedMaskSize = 5;
477 mib->GreenMaskSize = 5;
478 mib->BlueMaskSize = 5;
479 mib->RsvdMaskSize = 1;
480 mib->RedFieldPosition = 10;
481 mib->GreenFieldPosition = 5;
482 mib->BlueFieldPosition = 0;
483 mib->RsvdFieldPosition = 15;
486 mib->RedMaskSize = 0;
487 mib->GreenMaskSize = 0;
488 mib->BlueMaskSize = 0;
489 mib->RsvdMaskSize = 0;
490 mib->RedFieldPosition = 0;
491 mib->GreenFieldPosition = 0;
492 mib->BlueFieldPosition = 0;
493 mib->RsvdFieldPosition = 0;
498 * 39 - BYTE: direct color mode info
500 * 0 - Set if color ramp is programmable.
501 * 1 - Set if bytes in reserved field may be used by application.
503 mib->DirectColorModeInfo = 0; /* not supported */
505 /* 40 - DWORD: physical address of linear video buffer */
506 mib->PhysBasePtr = 0; /* not supported */
508 /* 44 - DWORD: reserved, always zero */
511 /* 48 - WORD: reserved, always zero */
514 /* 50 - WORD: bytes per scan line in linear modes */
515 mib->LinBytesPerScanLine = mib->BytesPerScanLine;
517 /* 52 - BYTE: number of images (less one) for banked video modes */
518 mib->BnkNumberOfImagePages = 0; /* FIXME */
520 /* 53 - BYTE: number of images (less one) for linear video modes */
521 mib->LinNumberOfImagePages = mib->BnkNumberOfImagePages;
523 /* 54 - BYTE: red mask size (linear modes) */
524 mib->LinRedMaskSize = mib->RedMaskSize;
526 /* 55 - BYTE: red field position (linear modes) */
527 mib->LinRedFieldPosition = mib->RedFieldPosition;
529 /* 56 - BYTE: green mask size (linear modes) */
530 mib->LinGreenMaskSize = mib->GreenMaskSize;
532 /* 57 - BYTE: green field size (linear modes) */
533 mib->LinGreenFieldPosition = mib->GreenFieldPosition;
535 /* 58 - BYTE: blue mask size (linear modes) */
536 mib->LinBlueMaskSize = mib->BlueMaskSize;
538 /* 59 - BYTE: blue field position (linear modes) */
539 mib->LinBlueFieldPosition = mib->BlueFieldPosition;
541 /* 60 - BYTE: reserved mask size (linear modes) */
542 mib->LinRsvdMaskSize = mib->RsvdMaskSize;
544 /* 61 - BYTE: reserved mask position (linear modes) */
545 mib->LinRsvdFieldPosition = mib->RsvdFieldPosition;
547 /* 62 - DWORD: maximum pixel clock for graphics video mode, in Hz */
548 mib->MaxPixelClock = 0; /* FIXME */
550 /* 66 - BYTE[190]: reserved, set to zero */
551 memset( mib->Reserved4, 0, 190 );
557 /**********************************************************************
558 * INT10_FillStateInformation
560 * Fill 64-byte buffer with VGA state and functionality information.
562 static void INT10_FillStateInformation( BYTE *buffer, BIOSDATA *data )
564 INT10_HEAP *heap = INT10_GetHeap();
566 /* 00 - DWORD: address of static functionality table */
567 *(SEGPTR*)(buffer + 0) = MAKESEGPTR( heap->WineHeapSegment,
569 StaticModeSupport) );
571 /* 04 - BYTE[30]: copy of BIOS data starting from 0x49 (VideoMode) */
572 memmove( buffer + 4, &data->VideoMode, 30 );
574 /* 34 - BYTE: number of rows - 1 */
575 buffer[34] = data->RowsOnScreenMinus1;
577 /* 35 - WORD: bytes/character */
578 *(WORD*)(buffer + 35) = data->BytesPerChar;
580 /* 37 - BYTE: display combination code of active display */
581 buffer[37] = INT10_DCC;
583 /* 38 - BYTE: DCC of alternate display */
584 buffer[38] = 0; /* no secondary display */
586 /* 39 - WORD: number of colors supported in current mode (0000h = mono) */
587 *(WORD*)(buffer + 39) = 16; /* FIXME */
589 /* 41 - BYTE: number of pages supported in current mode */
590 buffer[41] = 1; /* FIXME */
593 * 42 - BYTE: number of scan lines active
600 buffer[42] = 3; /* FIXME */
602 /* 43 - BYTE: primary character block */
603 buffer[43] = 0; /* FIXME */
605 /* 44 - BYTE: secondary character block */
606 buffer[44] = 0; /* FIXME */
609 * 45 - BYTE: miscellaneous flags
611 * 0 - all modes on all displays on
612 * 1 - gray summing on
613 * 2 - monochrome display attached
614 * 3 - default palette loading disabled
615 * 4 - cursor emulation enabled
616 * 5 - 0 = intensity; 1 = blinking
617 * 6 - flat-panel display is active
620 /* FIXME: Correct value? */
622 (data->VGASettings & 0x0f) |
623 ((data->ModeOptions & 1) << 4); /* cursor emulation */
626 * 46 - BYTE: non-VGA mode support
628 * 0 - BIOS supports information return for adapter interface
629 * 1 - adapter interface driver required
630 * 2 - 16-bit VGA graphics present
631 * 3 - =1 MFI attributes enabled
632 * =0 VGA attributes enabled
633 * 4 - 132-column mode supported
636 buffer[46] = 0; /* FIXME: correct value? */
638 /* 47 - BYTE[2]: reserved, set to zero */
639 memset( buffer + 47, 0, 2 );
642 * 49 - BYTE: video memory available
649 buffer[49] = (data->ModeOptions & 0x60) >> 5; /* FIXME */
652 * 50 - BYTE: save pointer state flags
654 * 0 - 512 character set active
655 * 1 - dynamic save area present
656 * 2 - alpha font override active
657 * 3 - graphics font override active
658 * 4 - palette override active
659 * 5 - DCC override active
662 buffer[50] = heap->StaticSavePointerFlags;
665 * 51 - BYTE: display information and status
667 * 0 - flat-panel display attached
668 * 1 - flat-panel display active
671 * 7 - 640x480 flat-panel can be used simultaneously with CRT
673 buffer[51] = 4; /* FIXME: correct value? */
675 /* 52 - BYTE[12]: reserved, set to zero */
676 memset( buffer + 52, 0, 12 );
680 /**********************************************************************
683 INT10_HEAP *INT10_GetHeap( void )
685 static INT10_HEAP *heap_pointer = 0;
692 heap_pointer = DOSVM_AllocDataUMB( sizeof(INT10_HEAP),
696 for (i = 0; i < 7; i++)
697 heap_pointer->StaticModeSupport[i] = 0xff; /* FIXME */
699 heap_pointer->StaticScanlineSupport = 7; /* FIXME */
700 heap_pointer->StaticNumberCharBlocks = 0; /* FIXME */
701 heap_pointer->StaticActiveCharBlocks = 0; /* FIXME */
702 heap_pointer->StaticMiscFlags = 0x8ff; /* FIXME */
703 heap_pointer->StaticReserved1 = 0;
704 heap_pointer->StaticSavePointerFlags = 0x3f; /* FIXME */
705 heap_pointer->StaticReserved2 = 0;
709 heap_pointer->VesaModeList[i] = INT10_modelist[i].Mode;
710 if (INT10_modelist[i].Mode == 0xffff)
714 strcpy( heap_pointer->VesaOEMName, "WINE SVGA BOARD" );
715 strcpy( heap_pointer->VesaVendorName, "WINE" );
716 strcpy( heap_pointer->VesaProductName, "WINE SVGA" );
717 strcpy( heap_pointer->VesaProductRev, "2003" );
719 heap_pointer->VesaCurrentMode = 0; /* Initialized later. */
720 heap_pointer->WineHeapSegment = segment;
727 /**********************************************************************
730 * Change current video mode to any VGA or VESA mode.
731 * Returns TRUE if mode is supported.
734 * 0-6: .. Mode number (combined with bit 8).
735 * 7: =0 Clear screen.
736 * =1 Preserve display memory on mode change (VGA modes).
739 * 9: .. Reserved, must be zero.
740 * 10: .. Reserved, must be zero.
741 * 11: =0 Use default refresh rate.
742 * =1 Use user specified refresh rate.
743 * 12: .. Reserved, must be zero.
744 * 13: .. Reserved, must be zero.
745 * 14: =0 Use windowed frame buffer model.
746 * =1 Use linear frame buffer model.
747 * 15: =0 Clear screen.
748 * =1 Preserve display memory on mode change (VESA modes).
750 static BOOL INT10_SetVideoMode( BIOSDATA *data, WORD mode )
752 const INT10_MODE *ptr = INT10_FindMode( mode );
753 INT10_HEAP *heap = INT10_GetHeap();
754 BOOL clearScreen = TRUE;
760 * Linear framebuffer is not supported.
766 * Check for VGA and VESA preserve video memory flag.
768 if ((mode & 0x0080) || (mode & 0x8000))
772 * Note that we do not mask out flags here on purpose.
774 heap->VesaCurrentMode = mode;
776 data->VideoMode = mode;
783 TRACE( "Setting %s %dx%d text mode (screen %s)\n",
784 IS_VESA_MODE(mode) ? "VESA" : "VGA",
785 ptr->Width, ptr->Height,
786 clearScreen ? "cleared" : "preserved" );
789 * FIXME: We should check here if alpha mode could be set.
791 VGA_SetAlphaMode( ptr->Width, ptr->Height );
793 data->VideoColumns = ptr->Width;
794 data->RowsOnScreenMinus1 = ptr->Height - 1;
798 VGA_ClearText( 0, 0, ptr->Height-1, ptr->Width-1, 0x07 );
799 INT10_SetCursorPos( data, 0, 0, 0 );
800 VGA_SetCursorPos( 0, 0 );
806 TRACE( "Setting %s %dx%dx%d graphics mode (screen %s)\n",
807 IS_VESA_MODE(mode) ? "VESA" : "VGA",
808 ptr->Width, ptr->Height, ptr->Depth,
809 clearScreen ? "cleared" : "preserved" );
811 if (VGA_SetMode( ptr->Width, ptr->Height, ptr->Depth ))
819 /**********************************************************************
822 static void INT10_GetCursorPos(BIOSDATA*data,unsigned page,unsigned*X,unsigned*Y)
824 *X = data->VideoCursorPos[page*2]; /* column */
825 *Y = data->VideoCursorPos[page*2+1]; /* row */
829 /**********************************************************************
832 static void INT10_SetCursorPos(BIOSDATA*data,unsigned page,unsigned X,unsigned Y)
834 data->VideoCursorPos[page*2] = X;
835 data->VideoCursorPos[page*2+1] = Y;
839 /**********************************************************************
840 * INT10_InitializeVideoMode
842 * The first time this function is called VGA emulation is set to the
845 static void INT10_InitializeVideoMode( BIOSDATA *data )
847 static BOOL already_initialized = FALSE;
851 if(already_initialized)
853 already_initialized = TRUE;
855 VGA_InitAlphaMode(&width, &height);
858 * FIXME: Add more mappings between initial size and
861 if (width >= 80 && height >= 25)
862 INT10_SetVideoMode( data, 0x03 );
864 INT10_SetVideoMode( data, 0x01 );
868 /**********************************************************************
871 * Handler for VESA functions (int10 function 0x4f).
873 static void INT10_HandleVESA( CONTEXT86 *context )
875 BIOSDATA *data = DOSVM_BiosData();
877 switch(AL_reg(context)) {
879 case 0x00: /* RETURN CONTROLLER INFORMATION */
880 TRACE( "VESA RETURN CONTROLLER INFORMATION\n" );
882 BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
885 INT10_FillControllerInformation( ptr );
886 SET_AL( context, 0x4f );
887 SET_AH( context, 0x00 ); /* 0x00 = successful 0x01 = failed */
891 case 0x01: /* RETURN MODE INFORMATION */
892 TRACE( "VESA RETURN MODE INFORMATION %04x\n", CX_reg(context) );
894 struct _ModeInfoBlock *ptr = CTX_SEG_OFF_TO_LIN(context,
897 SET_AL( context, 0x4f );
898 if (INT10_FillModeInformation( ptr, CX_reg(context) ))
899 SET_AH( context, 0x00 ); /* status: success */
901 SET_AH( context, 0x01 ); /* status: failed */
905 case 0x02: /* SET SuperVGA VIDEO MODE */
906 TRACE( "Set VESA video mode %04x\n", BX_reg(context) );
907 SET_AL( context, 0x4f ); /* function supported */
908 if (INT10_SetVideoMode( data, BX_reg(context) ))
909 SET_AH( context, 0x00 ); /* success */
911 SET_AH( context, 0x01 ); /* failed */
914 case 0x03: /* VESA SuperVGA BIOS - GET CURRENT VIDEO MODE */
915 SET_AL( context, 0x4f );
916 SET_AH( context, 0x00 );
917 SET_BX( context, INT10_GetHeap()->VesaCurrentMode );
920 case 0x04: /* VESA SuperVGA BIOS - SAVE/RESTORE SuperVGA VIDEO STATE */
921 ERR("VESA SAVE/RESTORE Video State - Not Implemented\n");
922 /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
923 /* maybe we should do this instead ? */
924 /* AH_reg(context = 0x01; not implemented so just fail */
927 case 0x05: /* VESA SuperVGA BIOS - CPU VIDEO MEMORY CONTROL */
929 * This subfunction supports only Window A (BL_reg == 0) and
930 * it assumes that window granularity is 64k.
932 switch(BH_reg(context)) {
933 case 0x00: /* select video memory window */
934 SET_AL( context, 0x4f ); /* function supported */
935 if(BL_reg(context) == 0) {
936 VGA_SetWindowStart(DX_reg(context) * 64 * 1024);
937 SET_AH( context, 0x00 ); /* status: successful */
939 SET_AH( context, 0x01 ); /* status: failed */
941 case 0x01: /* get video memory window */
942 SET_AL( context, 0x4f ); /* function supported */
943 if(BL_reg(context) == 0) {
944 SET_DX( context, VGA_GetWindowStart() / 64 / 1024 );
945 SET_AH( context, 0x00 ); /* status: successful */
947 SET_AH( context, 0x01 ); /* status: failed */
950 INT_BARF( context, 0x10 );
954 case 0x06: /* VESA GET/SET LOGICAL SCAN LINE LENGTH */
955 ERR("VESA GET/SET LOGICAL SCAN LINE LENGTH - Not Implemented\n");
956 /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
957 /* maybe we should do this instead ? */
958 /* AH_reg(context = 0x001; not implemented so just fail */
961 case 0x07: /* GET/SET DISPLAY START */
962 ERR("VESA GET/SET DISPLAY START - Not Implemented\n");
963 /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
964 /* maybe we should do this instead ? */
965 /* AH_reg(context = 0x001; not implemented so just fail */
968 case 0x08: /* GET/SET DAC PALETTE CONTROL */
969 ERR("VESA GET/SET DAC PALETTE CONTROL- Not Implemented\n");
970 /* AL_reg(context) = 0x4f; = supported so not set since not implemented */
971 /* maybe we should do this instead ? */
972 /* AH_reg(context = 0x001; not implemented so just fail */
975 case 0x09: /* SET PALETTE ENTRIES */
976 FIXME("VESA Set palette entries - not implemented\n");
979 case 0x0a: /* GET PROTECTED-MODE CODE */
980 FIXME("VESA Get protected-mode code - not implemented\n");
983 case 0x10: /* Display Power Management Extensions */
984 FIXME("VESA Display Power Management Extensions - not implemented\n");
987 case 0xef: /* get video mode for hercules-compatibles */
988 /* There's no reason to really support this */
989 /* is there?....................(A.C.) */
990 TRACE("Just report the video not hercules compatible\n");
991 SET_DX( context, 0xffff );
994 case 0xff: /* Turn VESA ON/OFF */
995 /* I don't know what to do */
999 FIXME("VESA Function (0x%x) - Not Supported\n", AH_reg(context));
1005 /**********************************************************************
1006 * DOSVM_Int10Handler
1008 * Handler for int 10h (video).
1011 * Most INT 10 functions for text-mode, CGA, EGA, and VGA cards
1012 * are present in this list. (SVGA and XGA are not) That is not
1013 * to say that all these functions should be supported, but if
1014 * anyone is brain-damaged enough to want to emulate one of these
1015 * beasts then this should get you started.
1018 * Several common graphical extensions used by Microsoft hook
1019 * off of here. I have *not* added them to this list (yet). They
1022 * MSHERC.COM - More functionality for Hercules cards.
1023 * EGA.SYS (also MOUSE.COM) - More for EGA cards.
1025 * Yes, MS also added this support into their mouse driver. Don't
1026 * ask me, I don't work for them.
1028 * Joseph Pranevich - 9/98
1031 * Added support for Vesa. It is not complete but is a start.
1032 * NOTE: Im not sure if I did all this right or if any of it works.
1033 * Currently I don't have a program that uses Vesa that actually gets far
1034 * enough without crashing to do vesa stuff.
1036 * Added additional vga graphic support - 3/99
1038 void WINAPI DOSVM_Int10Handler( CONTEXT86 *context )
1040 BIOSDATA *data = DOSVM_BiosData();
1042 INT10_InitializeVideoMode( data );
1044 switch(AH_reg(context)) {
1046 case 0x00: /* SET VIDEO MODE */
1047 TRACE( "Set VGA video mode %02x\n", AL_reg(context) );
1048 if (!INT10_SetVideoMode( data, AL_reg(context) ))
1049 FIXME( "Unsupported VGA video mode requested: %#x\n",
1053 case 0x01: /* SET CURSOR SHAPE */
1054 TRACE("Set Cursor Shape start %d end %d options %d\n",
1055 CH_reg(context) & 0x1f,
1056 CL_reg(context) & 0x1f,
1057 CH_reg(context) & 0xe0);
1058 data->VideoCursorType = CX_reg(context); /* direct copy */
1059 VGA_SetCursorShape(CH_reg(context), CL_reg(context));
1062 case 0x02: /* SET CURSOR POSITION */
1063 /* BH = Page Number */ /* Not supported */
1064 /* DH = Row */ /* 0 is left */
1065 /* DL = Column */ /* 0 is top */
1066 INT10_SetCursorPos(data,BH_reg(context),DL_reg(context),DH_reg(context));
1067 if (BH_reg(context))
1069 FIXME("Set Cursor Position: Cannot set to page %d\n",
1074 VGA_SetCursorPos(DL_reg(context), DH_reg(context));
1075 TRACE("Set Cursor Position: %d/%d\n", DL_reg(context),
1080 case 0x03: /* GET CURSOR POSITION AND SIZE */
1084 TRACE("Get cursor position and size (page %d)\n", BH_reg(context));
1085 SET_CX( context, data->VideoCursorType );
1086 INT10_GetCursorPos(data,BH_reg(context),&col,&row);
1087 SET_DH( context, row );
1088 SET_DL( context, col );
1089 TRACE("Cursor Position: %d/%d\n", DL_reg(context), DH_reg(context));
1093 case 0x04: /* READ LIGHT PEN POSITION */
1094 FIXME("Read Light Pen Position - Not Supported\n");
1095 SET_AH( context, 0x00 ); /* Not down */
1098 case 0x05: /* SELECT ACTIVE DISPLAY PAGE */
1099 FIXME("Select Active Display Page (%d) - Not Supported\n", AL_reg(context));
1100 data->VideoCurPage = AL_reg(context);
1103 case 0x06: /* SCROLL UP WINDOW */
1104 /* AL = Lines to scroll */
1105 /* BH = Attribute */
1106 /* CH,CL = row, col upper-left */
1107 /* DH,DL = row, col lower-right */
1108 TRACE("Scroll Up Window %d\n", AL_reg(context));
1110 if (AL_reg(context) == 0)
1111 VGA_ClearText( CH_reg(context), CL_reg(context),
1112 DH_reg(context), DL_reg(context),
1115 VGA_ScrollUpText( CH_reg(context), CL_reg(context),
1116 DH_reg(context), DL_reg(context),
1117 AL_reg(context), BH_reg(context) );
1120 case 0x07: /* SCROLL DOWN WINDOW */
1121 /* AL = Lines to scroll */
1122 /* BH = Attribute */
1123 /* CH,CL = row, col upper-left */
1124 /* DH,DL = row, col lower-right */
1125 TRACE("Scroll Down Window %d\n", AL_reg(context));
1127 if (AL_reg(context) == 0)
1128 VGA_ClearText( CH_reg(context), CL_reg(context),
1129 DH_reg(context), DL_reg(context),
1132 VGA_ScrollDownText( CH_reg(context), CL_reg(context),
1133 DH_reg(context), DL_reg(context),
1134 AL_reg(context), BH_reg(context) );
1137 case 0x08: /* READ CHARACTER AND ATTRIBUTE AT CURSOR POSITION */
1139 if (BH_reg(context)) /* Write to different page */
1141 FIXME("Read character and attribute at cursor position -"
1142 " Can't read from non-0 page\n");
1143 SET_AL( context, ' ' ); /* That page is blank */
1144 SET_AH( context, 7 );
1149 TRACE("Read Character and Attribute at Cursor Position\n");
1150 VGA_GetCharacterAtCursor(&ascii, &attr);
1151 SET_AL( context, ascii );
1152 SET_AH( context, attr );
1157 case 0x09: /* WRITE CHARACTER AND ATTRIBUTE AT CURSOR POSITION */
1158 case 0x0a: /* WRITE CHARACTER ONLY AT CURSOR POSITION */
1159 /* AL = Character to display. */
1160 /* BH = Page Number */ /* We can't write to non-0 pages, yet. */
1161 /* BL = Attribute / Color */
1162 /* CX = Times to Write Char */
1163 /* Note here that the cursor is not advanced. */
1167 INT10_GetCursorPos(data,BH_reg(context),&col,&row);
1168 VGA_WriteChars(col, row,
1170 (AH_reg(context) == 0x09) ? BL_reg(context) : -1,
1172 if (CX_reg(context) > 1)
1173 TRACE("Write Character%s at Cursor Position (Rep. %d): %c\n",
1174 (AH_reg(context) == 0x09) ? " and Attribute" : "",
1175 CX_reg(context), AL_reg(context));
1177 TRACE("Write Character%s at Cursor Position: %c\n",
1178 (AH_reg(context) == 0x09) ? " and Attribute" : "",
1184 switch BH_reg(context) {
1185 case 0x00: /* SET BACKGROUND/BORDER COLOR */
1186 /* In text modes, this sets only the border... */
1187 /* According to the interrupt list and one of my books. */
1188 /* Funny though that Beyond Zork seems to indicate that it
1189 also sets up the default background attributes for clears
1191 /* Bear in mind here that we do not want to change,
1192 apparently, the foreground or attribute of the background
1193 with this call, so we should check first to see what the
1194 foreground already is... FIXME */
1195 FIXME("Set Background/Border Color: %d/%d\n",
1196 BH_reg(context), BL_reg(context));
1198 case 0x01: /* SET PALETTE */
1199 FIXME("Set Palette - Not Supported\n");
1202 FIXME("INT 10 AH = 0x0b BH = 0x%x - Unknown\n",
1208 case 0x0c: /* WRITE GRAPHICS PIXEL */
1209 /* Not in graphics mode, can ignore w/o error */
1210 FIXME("Write Graphics Pixel - Not Supported\n");
1213 case 0x0d: /* READ GRAPHICS PIXEL */
1214 /* Not in graphics mode, can ignore w/o error */
1215 FIXME("Read Graphics Pixel - Not Supported\n");
1218 case 0x0e: /* TELETYPE OUTPUT */
1219 TRACE("Teletype Output\n");
1220 DOSVM_PutChar(AL_reg(context));
1223 case 0x0f: /* GET CURRENT VIDEO MODE */
1224 TRACE("Get current video mode: -> mode %d, columns %d\n", data->VideoMode, data->VideoColumns);
1225 /* Note: This should not be a constant value. */
1226 SET_AL( context, data->VideoMode );
1227 SET_AH( context, data->VideoColumns );
1228 SET_BH( context, 0 ); /* Display page 0 */
1232 switch AL_reg(context) {
1233 case 0x00: /* SET SINGLE PALETTE REGISTER - A.C. */
1234 TRACE("Set Single Palette Register - Reg 0x0%x Value 0x0%x\n",
1235 BL_reg(context),BH_reg(context));
1236 /* BH is the value BL is the register */
1237 VGA_SetColor16((int)BL_reg(context),(int)BH_reg(context));
1239 case 0x01: /* SET BORDER (OVERSCAN) */
1240 /* Text terminals have no overscan */
1241 /* I'm setting it anyway. - A.C. */
1242 TRACE("Set Border (Overscan) - Ignored but set.\n");
1243 VGA_SetColor16(16,(int)BH_reg(context));
1245 case 0x02: /* SET ALL PALETTE REGISTERS - A.C.*/
1246 TRACE("Set all palette registers\n");
1247 /* ES:DX points to a 17 byte table of colors */
1248 /* No return data listed */
1249 /* I'll have to update my table and the default palette */
1250 VGA_Set16Palette(CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edx));
1252 case 0x03: /* TOGGLE INTENSITY/BLINKING BIT */
1253 FIXME("Toggle Intensity/Blinking Bit - Not Supported\n");
1255 case 0x07: /* GET INDIVIDUAL PALETTE REGISTER - A.C.*/
1256 TRACE("Get Individual Palette Register 0x0%x\n",BL_reg(context));
1257 /* BL is register to read [ 0-15 ] BH is return value */
1258 SET_BH( context, VGA_GetColor16((int)BL_reg(context)) );
1260 case 0x08: /* READ OVERSCAN (BORDER COLOR) REGISTER - A.C. */
1261 TRACE("Read Overscan (Border Color) Register\n");
1262 SET_BH( context, VGA_GetColor16(16) );
1264 case 0x09: /* READ ALL PALETTE REGISTERS AND OVERSCAN REGISTER - A.C.*/
1265 TRACE("Read All Palette Registers and Overscan Register\n");
1266 /* ES:DX points to a 17 byte table where the results */
1267 /* of this call should be stored. */
1268 VGA_Get16Palette(CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edx));
1270 case 0x10: /* SET INDIVIDUAL DAC REGISTER */
1272 PALETTEENTRY paldat;
1274 TRACE("Set Individual DAC register\n");
1275 paldat.peRed = DH_reg(context);
1276 paldat.peGreen = CH_reg(context);
1277 paldat.peBlue = CL_reg(context);
1279 VGA_SetPalette(&paldat,BX_reg(context)&0xFF,1);
1282 case 0x12: /* SET BLOCK OF DAC REGISTERS */
1285 PALETTEENTRY paldat;
1288 TRACE("Set Block of DAC registers\n");
1289 pt = (BYTE*)CTX_SEG_OFF_TO_LIN(context,context->SegEs,context->Edx);
1290 for (i=0;i<CX_reg(context);i++)
1292 paldat.peRed = (*(pt+i*3+0)) << 2;
1293 paldat.peGreen = (*(pt+i*3+1)) << 2;
1294 paldat.peBlue = (*(pt+i*3+2)) << 2;
1296 VGA_SetPalette(&paldat,(BX_reg(context)+i)&0xFF,1);
1300 case 0x13: /* SELECT VIDEO DAC COLOR PAGE */
1301 FIXME("Select video DAC color page - Not Supported\n");
1303 case 0x15: /* READ INDIVIDUAL DAC REGISTER */
1304 FIXME("Read individual DAC register - Not Supported\n");
1306 case 0x17: /* READ BLOCK OF DAC REGISTERS */
1307 FIXME("Read block of DAC registers - Not Supported\n");
1309 case 0x18: /* SET PEL MASK */
1310 FIXME("Set PEL mask - Not Supported\n");
1312 case 0x19: /* READ PEL MASK */
1313 FIXME("Read PEL mask - Not Supported\n");
1315 case 0x1a: /* GET VIDEO DAC COLOR PAGE STATE */
1316 FIXME("Get video DAC color page state - Not Supported\n");
1318 case 0x1b: /* PERFORM GRAY-SCALE SUMMING */
1319 FIXME("Perform Gray-scale summing - Not Supported\n");
1322 FIXME("INT 10 AH = 0x10 AL = 0x%x - Unknown\n",
1328 case 0x11: /* TEXT MODE CHARGEN */
1329 /* Note that second subfunction is *almost* identical. */
1330 /* See INTERRUPT.A for details. */
1331 switch AL_reg(context) {
1332 case 0x00: /* LOAD USER SPECIFIED PATTERNS */
1334 FIXME("Load User Specified Patterns - Not Supported\n");
1336 case 0x01: /* LOAD ROM MONOCHROME PATTERNS */
1338 FIXME("Load ROM Monochrome Patterns - Not Supported\n");
1340 case 0x02: /* LOAD ROM 8x8 DOUBLE-DOT PATTERNS */
1343 "Load ROM 8x8 Double Dot Patterns - Not Supported\n");
1345 case 0x03: /* SET BLOCK SPECIFIER */
1346 FIXME("Set Block Specifier - Not Supported\n");
1348 case 0x04: /* LOAD ROM 8x16 CHARACTER SET */
1350 FIXME("Load ROM 8x16 Character Set - Not Supported\n");
1352 case 0x20: /* SET USER 8x16 GRAPHICS CHARS */
1353 FIXME("Set User 8x16 Graphics Chars - Not Supported\n");
1355 case 0x21: /* SET USER GRAPICS CHARACTERS */
1356 FIXME("Set User Graphics Characters - Not Supported\n");
1358 case 0x22: /* SET ROM 8x14 GRAPHICS CHARS */
1359 FIXME("Set ROM 8x14 Graphics Chars - Not Supported\n");
1361 case 0x23: /* SET ROM 8x8 DBL DOT CHARS */
1363 "Set ROM 8x8 Dbl Dot Chars (Graphics) - Not Supported\n");
1365 case 0x24: /* LOAD 8x16 GRAPHIC CHARS */
1366 FIXME("Load 8x16 Graphic Chars - Not Supported\n");
1368 case 0x30: /* GET FONT INFORMATION */
1369 FIXME("Get Font Information - Not Supported\n");
1372 FIXME("INT 10 AH = 0x11 AL = 0x%x - Unknown\n",
1378 case 0x12: /* ALTERNATE FUNCTION SELECT */
1379 switch BL_reg(context) {
1380 case 0x10: /* GET EGA INFO */
1381 TRACE("EGA info requested\n");
1382 SET_BH( context, 0x00 ); /* Color screen */
1383 SET_BL( context, data->ModeOptions >> 5 ); /* EGA memory size */
1384 SET_CX( context, data->FeatureBitsSwitches );
1386 case 0x20: /* ALTERNATE PRTSC */
1387 FIXME("Install Alternate Print Screen - Not Supported\n");
1389 case 0x30: /* SELECT VERTICAL RESOLUTION */
1390 FIXME("Select vertical resolution - not supported\n");
1392 case 0x31: /* ENABLE/DISABLE DEFAULT PALETTE LOADING */
1393 FIXME("Default palette loading - not supported\n");
1395 (data->VGASettings & 0xf7) |
1396 ((AL_reg(context) == 1) << 3);
1398 case 0x32: /* ENABLE/DISABLE VIDEO ADDRESSING */
1399 FIXME("Video Addressing - Not Supported\n");
1401 case 0x33: /* ENABLE/DISABLE GRAY SCALE SUMMING */
1402 FIXME("Gray Scale Summing - Not Supported\n");
1404 case 0x34: /* ENABLE/DISABLE CURSOR EMULATION */
1405 TRACE("Set cursor emulation to %d\n", AL_reg(context));
1407 (data->ModeOptions & 0xfe)|(AL_reg(context) == 1);
1409 case 0x36: /* VIDEO ADDRESS CONTROL */
1410 FIXME("Video Address Control - Not Supported\n");
1413 FIXME("INT 10 AH = 0x11 AL = 0x%x - Unknown\n",
1419 case 0x13: /* WRITE STRING */
1420 /* This one does not imply that string be at cursor. */
1421 FIXME("Write String - Not Supported\n");
1425 switch AL_reg(context) {
1426 case 0x00: /* GET DISPLAY COMBINATION CODE */
1427 TRACE("Get Display Combination Code\n");
1428 SET_AL( context, 0x1a ); /* Function supported */
1429 SET_BL( context, INT10_DCC ); /* Active display */
1430 SET_BH( context, 0x00 ); /* No alternate display */
1432 case 0x01: /* SET DISPLAY COMBINATION CODE */
1433 FIXME("Set Display Combination Code - Not Supported\n");
1436 FIXME("INT 10 AH = 0x1a AL = 0x%x - Unknown\n",
1442 case 0x1b: /* FUNCTIONALITY/STATE INFORMATION */
1443 TRACE("Get functionality/state information\n");
1444 if (BX_reg(context) == 0x0000)
1446 BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
1449 SET_AL( context, 0x1b ); /* Function is supported */
1450 INT10_FillStateInformation( ptr, data );
1454 case 0x1c: /* SAVE/RESTORE VIDEO STATE */
1455 FIXME("Save/Restore Video State - Not Supported\n");
1458 case 0xef: /* get video mode for hercules-compatibles */
1459 /* There's no reason to really support this */
1460 /* is there?....................(A.C.) */
1461 TRACE("Just report the video not hercules compatible\n");
1462 SET_DX( context, 0xffff );
1465 case 0x4f: /* VESA */
1466 INT10_HandleVESA(context);
1469 case 0xfe: /* GET SHADOW BUFFER */
1470 TRACE( "GET SHADOW BUFFER %x:%x - ignored\n",
1471 context->SegEs, DI_reg(context) );
1475 FIXME("Unknown - 0x%x\n", AH_reg(context));
1476 INT_BARF( context, 0x10 );
1481 /**********************************************************************
1484 * Write single character to VGA console at the current
1485 * cursor position and updates the BIOS cursor position.
1487 void WINAPI DOSVM_PutChar( BYTE ascii )
1489 BIOSDATA *data = DOSVM_BiosData();
1490 unsigned xpos, ypos;
1492 TRACE("char: 0x%02x(%c)\n", ascii, ascii);
1494 INT10_InitializeVideoMode( data );
1496 VGA_PutChar( ascii );
1497 VGA_GetCursorPos( &xpos, &ypos );
1498 INT10_SetCursorPos( data, 0, xpos, ypos );