2 // QEMU Cirrus CLGD 54xx VGABIOS Extension.
4 // Copyright (c) 2004 Makoto Suzuki (suzu)
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 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 //#define CIRRUS_VESA3_PMINFO
23 #undef CIRRUS_VESA3_PMINFO
26 #define PM_BIOSMEM_CURRENT_MODE 0x449
27 #define PM_BIOSMEM_CRTC_ADDRESS 0x463
28 #define PM_BIOSMEM_VBE_MODE 0x4BA
35 unsigned short height;
38 unsigned short hidden_dac; /* 0x3c6 */
39 unsigned short *seq; /* 0x3c4 */
40 unsigned short *graph; /* 0x3ce */
41 unsigned short *crtc; /* 0x3d4 */
43 unsigned char bitsperpixel;
44 unsigned char vesacolortype;
45 unsigned char vesaredmask;
46 unsigned char vesaredpos;
47 unsigned char vesagreenmask;
48 unsigned char vesagreenpos;
49 unsigned char vesabluemask;
50 unsigned char vesabluepos;
52 unsigned char vesareservedmask;
53 unsigned char vesareservedpos;
55 #define CIRRUS_MODE_SIZE 26
58 /* For VESA BIOS 3.0 */
59 #define CIRRUS_PM16INFO_SIZE 20
62 unsigned short cseq_vga[] = {0x0007,0xffff};
63 unsigned short cgraph_vga[] = {0x0009,0x000a,0x000b,0xffff};
64 unsigned short ccrtc_vga[] = {0x001a,0x001b,0x001d,0xffff};
67 unsigned short cgraph_svgacolor[] = {
68 0x0000,0x0001,0x0002,0x0003,0x0004,0x4005,0x0506,0x0f07,0xff08,
73 unsigned short cseq_640x480x8[] = {
74 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1107,
75 0x580b,0x580c,0x580d,0x580e,
77 0x331b,0x331c,0x331d,0x331e,
80 unsigned short ccrtc_640x480x8[] = {
82 0x5f00,0x4f01,0x4f02,0x8003,0x5204,0x1e05,0x0b06,0x3e07,
84 0xea10,0xdf12,0x5013,0x4014,0xdf15,0x0b16,0xc317,0xff18,
89 unsigned short cseq_640x480x16[] = {
90 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1707,
91 0x580b,0x580c,0x580d,0x580e,
93 0x331b,0x331c,0x331d,0x331e,
96 unsigned short ccrtc_640x480x16[] = {
98 0x5f00,0x4f01,0x4f02,0x8003,0x5204,0x1e05,0x0b06,0x3e07,
100 0xea10,0xdf12,0xa013,0x4014,0xdf15,0x0b16,0xc317,0xff18,
101 0x001a,0x221b,0x001d,
105 unsigned short cseq_640x480x24[] = {
106 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1507,
107 0x580b,0x580c,0x580d,0x580e,
108 0x0412,0x0013,0x2017,
109 0x331b,0x331c,0x331d,0x331e,
112 unsigned short ccrtc_640x480x24[] = {
114 0x5f00,0x4f01,0x4f02,0x8003,0x5204,0x1e05,0x0b06,0x3e07,
115 0x4009,0x000c,0x000d,
116 0xea10,0xdf12,0x0013,0x4014,0xdf15,0x0b16,0xc317,0xff18,
117 0x001a,0x321b,0x001d,
121 unsigned short cseq_800x600x8[] = {
122 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1107,
123 0x230b,0x230c,0x230d,0x230e,
124 0x0412,0x0013,0x2017,
125 0x141b,0x141c,0x141d,0x141e,
128 unsigned short ccrtc_800x600x8[] = {
129 0x2311,0x7d00,0x6301,0x6302,0x8003,0x6b04,0x1a05,0x9806,0xf007,
130 0x6009,0x000c,0x000d,
131 0x7d10,0x5712,0x6413,0x4014,0x5715,0x9816,0xc317,0xff18,
132 0x001a,0x221b,0x001d,
136 unsigned short cseq_800x600x16[] = {
137 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1707,
138 0x230b,0x230c,0x230d,0x230e,
139 0x0412,0x0013,0x2017,
140 0x141b,0x141c,0x141d,0x141e,
143 unsigned short ccrtc_800x600x16[] = {
144 0x2311,0x7d00,0x6301,0x6302,0x8003,0x6b04,0x1a05,0x9806,0xf007,
145 0x6009,0x000c,0x000d,
146 0x7d10,0x5712,0xc813,0x4014,0x5715,0x9816,0xc317,0xff18,
147 0x001a,0x221b,0x001d,
151 unsigned short cseq_800x600x24[] = {
152 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1507,
153 0x230b,0x230c,0x230d,0x230e,
154 0x0412,0x0013,0x2017,
155 0x141b,0x141c,0x141d,0x141e,
158 unsigned short ccrtc_800x600x24[] = {
159 0x2311,0x7d00,0x6301,0x6302,0x8003,0x6b04,0x1a05,0x9806,0xf007,
160 0x6009,0x000c,0x000d,
161 0x7d10,0x5712,0x2c13,0x4014,0x5715,0x9816,0xc317,0xff18,
162 0x001a,0x321b,0x001d,
166 unsigned short cseq_1024x768x8[] = {
167 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1107,
168 0x760b,0x760c,0x760d,0x760e,
169 0x0412,0x0013,0x2017,
170 0x341b,0x341c,0x341d,0x341e,
173 unsigned short ccrtc_1024x768x8[] = {
174 0x2911,0xa300,0x7f01,0x7f02,0x8603,0x8304,0x9405,0x2406,0xf507,
175 0x6009,0x000c,0x000d,
176 0x0310,0xff12,0x8013,0x4014,0xff15,0x2416,0xc317,0xff18,
177 0x001a,0x221b,0x001d,
181 unsigned short cseq_1024x768x16[] = {
182 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1707,
183 0x760b,0x760c,0x760d,0x760e,
184 0x0412,0x0013,0x2017,
185 0x341b,0x341c,0x341d,0x341e,
188 unsigned short ccrtc_1024x768x16[] = {
189 0x2911,0xa300,0x7f01,0x7f02,0x8603,0x8304,0x9405,0x2406,0xf507,
190 0x6009,0x000c,0x000d,
191 0x0310,0xff12,0x0013,0x4014,0xff15,0x2416,0xc317,0xff18,
192 0x001a,0x321b,0x001d,
196 unsigned short cseq_1024x768x24[] = {
197 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1507,
198 0x760b,0x760c,0x760d,0x760e,
199 0x0412,0x0013,0x2017,
200 0x341b,0x341c,0x341d,0x341e,
203 unsigned short ccrtc_1024x768x24[] = {
204 0x2911,0xa300,0x7f01,0x7f02,0x8603,0x8304,0x9405,0x2406,0xf507,
205 0x6009,0x000c,0x000d,
206 0x0310,0xff12,0x8013,0x4014,0xff15,0x2416,0xc317,0xff18,
207 0x001a,0x321b,0x001d,
211 unsigned short cseq_1280x1024x8[] = {
212 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1107,
213 0x760b,0x760c,0x760d,0x760e,
214 0x0412,0x0013,0x2017,
215 0x341b,0x341c,0x341d,0x341e,
218 unsigned short ccrtc_1280x1024x8[] = {
219 0x2911,0xc300,0x9f01,0x9f02,0x8603,0x8304,0x9405,0x2406,0xf707,
220 0x6009,0x000c,0x000d,
221 0x0310,0xff12,0xa013,0x4014,0xff15,0x2416,0xc317,0xff18,
222 0x001a,0x221b,0x001d,
226 unsigned short cseq_1280x1024x16[] = {
227 0x0300,0x2101,0x0f02,0x0003,0x0e04,0x1707,
228 0x760b,0x760c,0x760d,0x760e,
229 0x0412,0x0013,0x2017,
230 0x341b,0x341c,0x341d,0x341e,
233 unsigned short ccrtc_1280x1024x16[] = {
234 0x2911,0xc300,0x9f01,0x9f02,0x8603,0x8304,0x9405,0x2406,0xf707,
235 0x6009,0x000c,0x000d,
236 0x0310,0xff12,0x4013,0x4014,0xff15,0x2416,0xc317,0xff18,
237 0x001a,0x321b,0x001d,
242 cirrus_mode_t cirrus_modes[] =
244 {0x5f,640,480,8,0x00,
245 cseq_640x480x8,cgraph_svgacolor,ccrtc_640x480x8,8,
247 {0x64,640,480,16,0xe1,
248 cseq_640x480x16,cgraph_svgacolor,ccrtc_640x480x16,16,
250 {0x66,640,480,15,0xf0,
251 cseq_640x480x16,cgraph_svgacolor,ccrtc_640x480x16,16,
252 6,5,10,5,5,5,0,1,15},
253 {0x71,640,480,24,0xe5,
254 cseq_640x480x24,cgraph_svgacolor,ccrtc_640x480x24,24,
257 {0x5c,800,600,8,0x00,
258 cseq_800x600x8,cgraph_svgacolor,ccrtc_800x600x8,8,
260 {0x65,800,600,16,0xe1,
261 cseq_800x600x16,cgraph_svgacolor,ccrtc_800x600x16,16,
263 {0x67,800,600,15,0xf0,
264 cseq_800x600x16,cgraph_svgacolor,ccrtc_800x600x16,16,
265 6,5,10,5,5,5,0,1,15},
267 {0x60,1024,768,8,0x00,
268 cseq_1024x768x8,cgraph_svgacolor,ccrtc_1024x768x8,8,
270 {0x74,1024,768,16,0xe1,
271 cseq_1024x768x16,cgraph_svgacolor,ccrtc_1024x768x16,16,
273 {0x68,1024,768,15,0xf0,
274 cseq_1024x768x16,cgraph_svgacolor,ccrtc_1024x768x16,16,
275 6,5,10,5,5,5,0,1,15},
277 {0x78,800,600,24,0xe5,
278 cseq_800x600x24,cgraph_svgacolor,ccrtc_800x600x24,24,
280 {0x79,1024,768,24,0xe5,
281 cseq_1024x768x24,cgraph_svgacolor,ccrtc_1024x768x24,24,
284 {0x6d,1280,1024,8,0x00,
285 cseq_1280x1024x8,cgraph_svgacolor,ccrtc_1280x1024x8,8,
287 {0x69,1280,1024,15,0xf0,
288 cseq_1280x1024x16,cgraph_svgacolor,ccrtc_1280x1024x16,16,
289 6,5,10,5,5,5,0,1,15},
290 {0x75,1280,1024,16,0xe1,
291 cseq_1280x1024x16,cgraph_svgacolor,ccrtc_1280x1024x16,16,
294 {0xfe,0,0,0,0,cseq_vga,cgraph_vga,ccrtc_vga,0,
295 0xff,0,0,0,0,0,0,0,0},
296 {0xff,0,0,0,0,0,0,0,0,
297 0xff,0,0,0,0,0,0,0,0},
300 unsigned char cirrus_id_table[] = {
310 unsigned short cirrus_vesa_modelist[] = {
349 .ascii "cirrus-compatible VGA is detected"
353 cirrus_not_installed:
354 .ascii "cirrus-compatible VGA is not detected"
358 cirrus_vesa_vendorname:
359 cirrus_vesa_productname:
361 .ascii "VGABIOS Cirrus extension"
363 cirrus_vesa_productrevision:
370 SET_INT_VECTOR(0x10, #0xC000, #cirrus_int10_handler)
371 mov al, #0x0f ; memory setup
381 mov ax, #0x0007 ; set vga mode
383 mov ax, #0x0431 ; reset bitblt
397 mov si, #cirrus_not_installed
398 jnz cirrus_msgnotinstalled
399 mov si, #cirrus_installed
401 cirrus_msgnotinstalled:
421 cirrus_int10_handler:
424 cmp ah, #0x00 ;; set video mode
425 jz cirrus_set_video_mode
426 cmp ah, #0x12 ;; cirrus extension
428 cmp ah, #0x4F ;; VESA extension
434 jmp vgabios_int10_handler
438 call cirrus_debug_dump
444 cirrus_set_video_mode:
446 call cirrus_debug_dump
452 #ifdef CIRRUS_VESA3_PMINFO
454 mov si, [cirrus_vesa_sel0000_data]
460 mov [PM_BIOSMEM_VBE_MODE], bx
463 call cirrus_get_modeentry
464 jnc cirrus_set_video_mode_extended
466 call cirrus_get_modeentry_nomask
467 call cirrus_switch_mode
474 call cirrus_debug_dump
484 mov bp, cirrus_extbios_handlers[bx]
492 call cirrus_debug_dump
495 ja cirrus_vesa_not_handled
501 mov bp, cirrus_vesa_handlers[bx]
507 cirrus_vesa_not_handled:
508 mov ax, #0x014F ;; not implemented
518 call _cirrus_debugmsg
525 cirrus_set_video_mode_extended:
526 call cirrus_switch_mode
529 jnz cirrus_set_video_mode_extended_1
531 mov ax, #0xffff ; set to 0xff to keep win 2K happy
532 call cirrus_clear_vram
534 cirrus_set_video_mode_extended_1:
538 #ifdef CIRRUS_VESA3_PMINFO
540 mov si, [cirrus_vesa_sel0000_data]
545 mov [PM_BIOSMEM_CURRENT_MODE], al
553 cirrus_vesa_pmbios_init:
555 cirrus_vesa_pmbios_entry:
559 jnz cirrus_vesa_pmbios_unimplemented
561 ja cirrus_vesa_pmbios_unimplemented
567 mov bp, cirrus_vesa_handlers[bx]
569 push #cirrus_vesa_pmbios_return
572 cirrus_vesa_pmbios_unimplemented:
574 cirrus_vesa_pmbios_return:
587 mov bx, [si+10] ;; seq
590 out dx, ax ;; Unlock cirrus special
591 call cirrus_switch_mode_setregs
593 mov bx, [si+12] ;; graph
595 call cirrus_switch_mode_setregs
597 mov bx, [si+14] ;; crtc
599 call cirrus_switch_mode_setregs
608 mov al, [si+8] ;; hidden dac
614 mov bl, [si+17] ;; memory model
623 call biosfn_get_single_palette_reg
626 call biosfn_set_single_palette_reg
633 cirrus_enable_16k_granularity:
641 or al, #0x20 ;; enable 16k
647 cirrus_switch_mode_setregs:
665 mov bx, #_cirrus_id_table
685 mov ax, #0x100 ;; XXX
704 mov al, #0x0f ;; get DRAM band width
708 ;; al = 4 << bandwidth
720 mov al, #0x20 ;; 2 MB
722 mov al, #0x40 ;; 4 MB
734 call cirrus_get_modeentry
737 mov bx, cirrus_extbios_A0h_callback
744 cirrus_extbios_A0h_callback:
745 ;; fatal: not implemented yet
751 mov bx, #0x0E00 ;; IBM 8512/8513, color
755 mov al, #0x07 ;; HSync 31.5 - 64.0 kHz
759 mov al, #0x01 ;; High Refresh 75Hz
762 cirrus_extbios_unimplemented:
773 cmp ax, #0x4256 ;; VB
776 cmp ax, #0x3245 ;; E2
780 mov ax, #0x0100 ;; soft ver.
782 mov ax, # cirrus_vesa_vendorname
786 mov ax, # cirrus_vesa_productname
790 mov ax, # cirrus_vesa_productrevision
796 mov ax, #0x4556 ;; VE
798 mov ax, #0x4153 ;; SA
800 mov ax, #0x0200 ;; v2.00
802 mov ax, # cirrus_vesa_oemname
813 call cirrus_extbios_85h ;; vram in 64k
820 mov si, #_cirrus_vesa_modelist
837 call cirrus_vesamode_to_mode
839 jnz cirrus_vesa_01h_1
840 jmp cirrus_vesa_unimplemented
851 call cirrus_get_modeentry_nomask
857 stosw ;; clear buffer
860 mov ax, #0x003b ;; mode
862 mov ax, #0x0007 ;; attr
864 mov ax, #0x0010 ;; granularity =16K
866 mov ax, #0x0040 ;; size =64K
868 mov ax, #0xA000 ;; segment A
870 xor ax, ax ;; no segment B
872 mov ax, #cirrus_vesa_05h_farentry
876 call cirrus_get_line_offset_entry
877 stosw ;; bytes per scan line
878 mov ax, [si+2] ;; width
880 mov ax, [si+4] ;; height
886 mov al, #1 ;; count of planes
888 mov al, [si+6] ;; bpp
890 mov al, #0x1 ;; XXX number of banks
893 stosb ;; memory model
894 mov al, #0x0 ;; XXX size of bank in K
896 call cirrus_get_line_offset_entry
898 mul bx ;; dx:ax=vramdisp
903 call cirrus_extbios_85h ;; al=vram in 64k
909 stosb ;; number of image pages = vramtotal/vramdisp-1
925 rcl al, #1 ; bit 0=palette flag
926 stosb ;; direct screen mode info
929 ;; 32-bit LFB address
932 call cirrus_get_lfb_addr
940 or ax, #0x0080 ;; mode bit 7:LFB
958 test cx, #0x4000 ;; LFB flag
963 cmp cx, #0x0080 ;; is LFB supported?
964 jnz cirrus_vesa_01h_6
965 mov ax, #0x014F ;; error - no LFB
972 ;; XXX support CRTC registers
974 jnz cirrus_vesa_02h_2 ;; unknown flags
976 and ax, #0x1ff ;; bit 8-0 mode
977 cmp ax, #0x100 ;; legacy VGA mode
978 jb cirrus_vesa_02h_legacy
979 call cirrus_vesamode_to_mode
981 jnz cirrus_vesa_02h_1
983 jmp cirrus_vesa_unimplemented
984 cirrus_vesa_02h_legacy:
985 #ifdef CIRRUS_VESA3_PMINFO
987 cmp byte ptr [cirrus_vesa_is_protected_mode], #0
988 jnz cirrus_vesa_02h_2
989 #endif // CIRRUS_VESA3_PMINFO
996 call cirrus_get_modeentry_nomask
997 call cirrus_switch_mode
998 test bx, #0x4000 ;; LFB
999 jnz cirrus_vesa_02h_3
1000 call cirrus_enable_16k_granularity
1002 test bx, #0x8000 ;; no clear
1003 jnz cirrus_vesa_02h_4
1006 call cirrus_clear_vram
1011 #ifdef CIRRUS_VESA3_PMINFO
1013 mov si, [cirrus_vesa_sel0000_data]
1018 mov [PM_BIOSMEM_CURRENT_MODE], al
1019 mov [PM_BIOSMEM_VBE_MODE], bx
1027 #ifdef CIRRUS_VESA3_PMINFO
1029 mov ax, [cirrus_vesa_sel0000_data]
1034 mov bx, # PM_BIOSMEM_VBE_MODE
1038 jnz cirrus_vesa_03h_1
1039 mov bx, # PM_BIOSMEM_CURRENT_MODE
1048 cirrus_vesa_05h_farentry:
1049 call cirrus_vesa_05h
1054 ja cirrus_vesa_05h_1
1056 jz cirrus_vesa_05h_setmempage
1058 jz cirrus_vesa_05h_getmempage
1060 jmp cirrus_vesa_unimplemented
1061 cirrus_vesa_05h_setmempage:
1062 or dh, dh ; address must be < 0x100
1063 jnz cirrus_vesa_05h_1
1065 mov al, bl ;; bl=bank number
1067 mov ah, dl ;; dx=window address in granularity
1073 cirrus_vesa_05h_getmempage:
1074 mov al, bl ;; bl=bank number
1081 mov dl, al ;; dx=window address in granularity
1088 je cirrus_vesa_06h_3
1090 je cirrus_vesa_06h_2
1091 jb cirrus_vesa_06h_1
1095 call cirrus_get_bpp_bytes
1101 call cirrus_set_line_offset
1103 call cirrus_get_bpp_bytes
1107 call cirrus_get_line_offset
1112 call cirrus_extbios_85h ;; al=vram in 64k
1123 je cirrus_vesa_07h_1
1125 je cirrus_vesa_07h_2
1126 jb cirrus_vesa_07h_1
1131 call cirrus_get_bpp_bytes
1138 call cirrus_get_line_offset
1142 jnc cirrus_vesa_07h_3
1151 call cirrus_set_start_addr
1155 call cirrus_get_start_addr
1163 call cirrus_get_line_offset
1169 call cirrus_get_bpp_bytes
1180 cirrus_vesa_unimplemented:
1181 mov ax, #0x014F ;; not implemented
1185 ;; in ax:vesamode, out ax:cirrusmode
1186 cirrus_vesamode_to_mode:
1193 mov si, #_cirrus_vesa_modelist
1209 ;; NOTE - may be called in protected mode
1223 ;; in - al:mode, out - cflag:result, si:table, ax:destroyed
1224 cirrus_get_modeentry:
1226 cirrus_get_modeentry_nomask:
1227 mov si, #_cirrus_modes
1235 add si, # CIRRUS_MODE_SIZE
1239 stc ;; video mode is not supported
1242 clc ;; video mode is supported
1247 ; out - ax:LFB address (high 16 bit)
1248 ;; NOTE - may be called in protected mode
1249 cirrus_get_lfb_addr:
1255 call cirrus_pci_read
1257 jz cirrus_get_lfb_addr_5
1258 cirrus_get_lfb_addr_3:
1260 call cirrus_pci_read
1261 cmp ax, #0x1013 ;; cirrus
1262 jz cirrus_get_lfb_addr_4
1264 cmp cx, #0x200 ;; search bus #0 and #1
1265 jb cirrus_get_lfb_addr_3
1266 cirrus_get_lfb_addr_5:
1267 xor dx, dx ;; no LFB
1268 jmp cirrus_get_lfb_addr_6
1269 cirrus_get_lfb_addr_4:
1270 mov dl, #0x10 ;; I/O space #0
1271 call cirrus_pci_read
1273 jnz cirrus_get_lfb_addr_5
1275 mov dx, ax ;; LFB address
1276 cirrus_get_lfb_addr_6:
1284 mov eax, #0x00800000
1294 ;; out - al:bytes per pixel
1295 cirrus_get_bpp_bytes:
1304 jne cirrus_get_bpp_bytes_1
1306 cirrus_get_bpp_bytes_1:
1309 je cirrus_get_bpp_bytes_2
1311 cirrus_get_bpp_bytes_2:
1315 ;; in - ax: new line offset
1316 cirrus_set_line_offset:
1319 call cirrus_get_crtc
1336 ;; out - ax: active line offset
1337 cirrus_get_line_offset:
1340 call cirrus_get_crtc
1361 ;; out - ax: line offset for mode
1362 cirrus_get_line_offset_entry:
1364 mov bx, [si+14] ;; crtc table
1393 ;; in - new address in DX:AX
1394 cirrus_set_start_addr:
1398 call cirrus_get_crtc
1438 ;; out - current address in DX:AX
1439 cirrus_get_start_addr:
1441 call cirrus_get_crtc
1482 call cirrus_enable_16k_granularity
1483 call cirrus_extbios_85h
1487 cirrus_clear_vram_1:
1503 jne cirrus_clear_vram_1
1509 cirrus_extbios_handlers:
1511 dw cirrus_extbios_80h
1512 dw cirrus_extbios_81h
1513 dw cirrus_extbios_82h
1514 dw cirrus_extbios_unimplemented
1516 dw cirrus_extbios_unimplemented
1517 dw cirrus_extbios_85h
1518 dw cirrus_extbios_unimplemented
1519 dw cirrus_extbios_unimplemented
1521 dw cirrus_extbios_unimplemented
1522 dw cirrus_extbios_unimplemented
1523 dw cirrus_extbios_unimplemented
1524 dw cirrus_extbios_unimplemented
1526 dw cirrus_extbios_unimplemented
1527 dw cirrus_extbios_unimplemented
1528 dw cirrus_extbios_unimplemented
1529 dw cirrus_extbios_unimplemented
1531 dw cirrus_extbios_unimplemented
1532 dw cirrus_extbios_unimplemented
1533 dw cirrus_extbios_unimplemented
1534 dw cirrus_extbios_unimplemented
1536 dw cirrus_extbios_unimplemented
1537 dw cirrus_extbios_unimplemented
1538 dw cirrus_extbios_unimplemented
1539 dw cirrus_extbios_unimplemented
1541 dw cirrus_extbios_unimplemented
1542 dw cirrus_extbios_unimplemented
1543 dw cirrus_extbios_9Ah
1544 dw cirrus_extbios_unimplemented
1546 dw cirrus_extbios_unimplemented
1547 dw cirrus_extbios_unimplemented
1548 dw cirrus_extbios_unimplemented
1549 dw cirrus_extbios_unimplemented
1551 dw cirrus_extbios_A0h
1552 dw cirrus_extbios_A1h
1553 dw cirrus_extbios_A2h
1554 dw cirrus_extbios_unimplemented
1556 dw cirrus_extbios_unimplemented
1557 dw cirrus_extbios_unimplemented
1558 dw cirrus_extbios_unimplemented
1559 dw cirrus_extbios_unimplemented
1561 dw cirrus_extbios_unimplemented
1562 dw cirrus_extbios_unimplemented
1563 dw cirrus_extbios_unimplemented
1564 dw cirrus_extbios_unimplemented
1566 dw cirrus_extbios_unimplemented
1567 dw cirrus_extbios_unimplemented
1568 dw cirrus_extbios_AEh
1569 dw cirrus_extbios_unimplemented
1571 cirrus_vesa_handlers:
1578 dw cirrus_vesa_unimplemented
1583 dw cirrus_vesa_unimplemented
1584 dw cirrus_vesa_unimplemented
1585 dw cirrus_vesa_unimplemented
1586 dw cirrus_vesa_unimplemented
1588 dw cirrus_vesa_unimplemented
1589 dw cirrus_vesa_unimplemented
1590 dw cirrus_vesa_unimplemented
1591 dw cirrus_vesa_unimplemented
1597 #ifdef CIRRUS_VESA3_PMINFO
1601 .byte 0x50,0x4d,0x49,0x44 ;; signature[4]
1603 dw cirrus_vesa_pmbios_entry ;; entry_bios
1604 dw cirrus_vesa_pmbios_init ;; entry_init
1606 cirrus_vesa_sel0000_data:
1607 dw 0x0000 ;; sel_00000
1608 cirrus_vesa_selA000_data:
1609 dw 0xA000 ;; sel_A0000
1611 cirrus_vesa_selB000_data:
1612 dw 0xB000 ;; sel_B0000
1613 cirrus_vesa_selB800_data:
1614 dw 0xB800 ;; sel_B8000
1616 cirrus_vesa_selC000_data:
1617 dw 0xC000 ;; sel_C0000
1618 cirrus_vesa_is_protected_mode:
1619 ;; protected mode flag and checksum
1620 dw (~((0xf2 + (cirrus_vesa_pmbios_entry >> 8) + (cirrus_vesa_pmbios_entry) \
1621 + (cirrus_vesa_pmbios_init >> 8) + (cirrus_vesa_pmbios_init)) & 0xff) << 8) + 0x01
1623 #endif // CIRRUS_VESA3_PMINFO
1627 static void cirrus_debugmsg(DI, SI, BP, SP, BX, DX, CX, AX, DS, ES, FLAGS)
1628 Bit16u DI, SI, BP, SP, BX, DX, CX, AX, ES, DS, FLAGS;
1630 if((GET_AH()!=0x0E)&&(GET_AH()!=0x02)&&(GET_AH()!=0x09)&&(AX!=0x4F05))
1631 printf("vgabios call ah%02x al%02x bx%04x cx%04x dx%04x\n",GET_AH(),GET_AL(),BX,CX,DX);