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Annotation of quake1/vgamodes.h, revision 1.1

1.1     ! root        1: //
        !             2: // vgamodes.h: VGA mode set tables
        !             3: //
        !             4: 
        !             5: #include "vregset.h"
        !             6: 
        !             7: int            VGA_InitMode (viddef_t *vid, vmode_t *pcurrentmode);
        !             8: void   VGA_SwapBuffers (viddef_t *vid, vmode_t *pcurrentmode, vrect_t *rects);
        !             9: void   VGA_SetPalette (viddef_t *vid, vmode_t *pcurrentmode,
        !            10:                                                unsigned char *pal);
        !            11: 
        !            12: ///////////////////////////////////////////////////////////////////////////
        !            13: // the following base mode descriptors plus extra data together provide all
        !            14: // the data needed to do VGA mode sets
        !            15: ///////////////////////////////////////////////////////////////////////////
        !            16: 
        !            17: typedef struct {
        !            18:        int             vidbuffer;
        !            19:        int             *pregset;
        !            20: } vextra_t;
        !            21: 
        !            22: int    vrsnull[] = {
        !            23:        VRS_END,
        !            24: };
        !            25: 
        !            26: int vrs320x200x256planar[] = {
        !            27: //
        !            28: // switch to linear, non-chain4 mode
        !            29: //
        !            30:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !            31:        VRS_BYTE_OUT, SC_DATA,  1,
        !            32: 
        !            33:        VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
        !            34:        VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
        !            35:        VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
        !            36:        VRS_BYTE_RMW, GC_DATA, ~0x13, 0x00,
        !            37:        VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
        !            38:        VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
        !            39: 
        !            40:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !            41:        VRS_BYTE_OUT, SC_DATA,  3,
        !            42: 
        !            43: //
        !            44: // change the CRTC from doubleword to byte mode
        !            45: //
        !            46:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !            47:        VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
        !            48:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !            49:        VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
        !            50: 
        !            51:        VRS_END,
        !            52: };
        !            53: 
        !            54: int vrs360x200x256planar[] = {
        !            55: //
        !            56: // switch to linear, non-chain4 mode
        !            57: //
        !            58:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !            59:        VRS_BYTE_OUT, SC_DATA,  1,
        !            60: 
        !            61:        VRS_WORD_OUT, SC_INDEX, 0x0604,
        !            62:        VRS_BYTE_OUT, MISC_OUTPUT, 0x67,
        !            63: 
        !            64:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !            65:        VRS_BYTE_OUT, SC_DATA,  3,
        !            66: 
        !            67: //
        !            68: // unprotect CRTC0 through CRTC0
        !            69: //
        !            70:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !            71:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !            72: 
        !            73: //
        !            74: // change the CRTC from doubleword to byte mode
        !            75: //
        !            76:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !            77:        VRS_BYTE_RMW, CRTC_DATA,  ~0x40, 0x00,
        !            78:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !            79:        VRS_BYTE_RMW, CRTC_DATA,  ~0x00, 0x40,
        !            80: 
        !            81: //
        !            82: // set up the CRT Controller
        !            83: //
        !            84:        VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
        !            85:        VRS_WORD_OUT, CRTC_INDEX, 0x5901,
        !            86:        VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
        !            87:        VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
        !            88:        VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
        !            89:        VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
        !            90:        VRS_WORD_OUT, CRTC_INDEX, 0x3013,
        !            91: 
        !            92:        VRS_END,
        !            93: };
        !            94: 
        !            95: int vrs320x240x256planar[] = {
        !            96: //
        !            97: // switch to linear, non-chain4 mode
        !            98: //
        !            99:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           100:        VRS_BYTE_OUT, SC_DATA,  1,
        !           101: 
        !           102:        VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
        !           103:        VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
        !           104:        VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
        !           105:        VRS_BYTE_RMW, GC_DATA, ~0x13, 0x00,
        !           106:        VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
        !           107:        VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
        !           108: 
        !           109:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           110:        VRS_BYTE_OUT, SC_DATA,  3,
        !           111: 
        !           112: //
        !           113: // unprotect CRTC0 through CRTC0
        !           114: //
        !           115:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           116:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           117: 
        !           118: //
        !           119: // set up the CRT Controller
        !           120: //
        !           121:        VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
        !           122:        VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
        !           123:        VRS_WORD_OUT, CRTC_INDEX, 0x4109,
        !           124:        VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
        !           125:        VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
        !           126:        VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
        !           127:        VRS_WORD_OUT, CRTC_INDEX, 0x0014,
        !           128:        VRS_WORD_OUT, CRTC_INDEX, 0xE715,
        !           129:        VRS_WORD_OUT, CRTC_INDEX, 0x0616,
        !           130:        VRS_WORD_OUT, CRTC_INDEX, 0xE317,
        !           131: 
        !           132:        VRS_END,
        !           133: };
        !           134: 
        !           135: int vrs360x240x256planar[] = {
        !           136: //
        !           137: // switch to linear, non-chain4 mode
        !           138: //
        !           139:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           140:        VRS_BYTE_OUT, SC_DATA,  1,
        !           141: 
        !           142:        VRS_WORD_OUT, SC_INDEX, 0x0604,
        !           143:        VRS_BYTE_OUT, MISC_OUTPUT, 0xE7,
        !           144: 
        !           145:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           146:        VRS_BYTE_OUT, SC_DATA,  3,
        !           147: 
        !           148: //
        !           149: // unprotect CRTC0 through CRTC0
        !           150: //
        !           151:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           152:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           153: 
        !           154: //
        !           155: // set up the CRT Controller
        !           156: //
        !           157:        VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
        !           158:        VRS_WORD_OUT, CRTC_INDEX, 0x5901,
        !           159:        VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
        !           160:        VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
        !           161:        VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
        !           162:        VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
        !           163:        VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
        !           164:        VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
        !           165:        VRS_WORD_OUT, CRTC_INDEX, 0x4109,
        !           166:        VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
        !           167:        VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
        !           168:        VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
        !           169:        VRS_WORD_OUT, CRTC_INDEX, 0x3013,
        !           170:        VRS_WORD_OUT, CRTC_INDEX, 0x0014,
        !           171:        VRS_WORD_OUT, CRTC_INDEX, 0xE715,
        !           172:        VRS_WORD_OUT, CRTC_INDEX, 0x0616,
        !           173:        VRS_WORD_OUT, CRTC_INDEX, 0xE317,
        !           174: 
        !           175:        VRS_END,
        !           176: };
        !           177: 
        !           178: int vrs320x350x256planar[] = {
        !           179: //
        !           180: // switch to linear, non-chain4 mode
        !           181: //
        !           182:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           183:        VRS_BYTE_OUT, SC_DATA,  1,
        !           184: 
        !           185:        VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
        !           186:        VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
        !           187:        VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
        !           188:        VRS_BYTE_RMW, GC_DATA, ~0x10, 0x00,
        !           189:        VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
        !           190:        VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
        !           191:        VRS_BYTE_OUT, MISC_OUTPUT, 0xA3,        // 350-scan-line scan rate
        !           192: 
        !           193:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           194:        VRS_BYTE_OUT, SC_DATA,  3,
        !           195: 
        !           196: //
        !           197: // unprotect CRTC0 through CRTC0
        !           198: //
        !           199:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           200:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           201: 
        !           202: //
        !           203: // stop scanning each line twice
        !           204: //
        !           205:        VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
        !           206:        VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
        !           207: 
        !           208: //
        !           209: // change the CRTC from doubleword to byte mode
        !           210: //
        !           211:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !           212:        VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
        !           213:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !           214:        VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
        !           215: 
        !           216: //
        !           217: // set the vertical counts for 350-scan-line mode
        !           218: //
        !           219:        VRS_WORD_OUT, CRTC_INDEX, 0xBF06,
        !           220:        VRS_WORD_OUT, CRTC_INDEX, 0x1F07,
        !           221:        VRS_WORD_OUT, CRTC_INDEX, 0x8310,
        !           222:        VRS_WORD_OUT, CRTC_INDEX, 0x8511,
        !           223:        VRS_WORD_OUT, CRTC_INDEX, 0x5D12,
        !           224:        VRS_WORD_OUT, CRTC_INDEX, 0x6315,
        !           225:        VRS_WORD_OUT, CRTC_INDEX, 0xBA16,
        !           226: 
        !           227:        VRS_END,
        !           228: };
        !           229: 
        !           230: int vrs360x350x256planar[] = {
        !           231: //
        !           232: // switch to linear, non-chain4 mode
        !           233: //
        !           234:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           235:        VRS_BYTE_OUT, SC_DATA,  1,
        !           236: 
        !           237:        VRS_WORD_OUT, SC_INDEX, 0x0604,
        !           238:        VRS_BYTE_OUT, MISC_OUTPUT, 0xA7,        // 350-scan-line scan rate
        !           239: 
        !           240:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           241:        VRS_BYTE_OUT, SC_DATA,  3,
        !           242: 
        !           243: //
        !           244: // unprotect CRTC0 through CRTC0
        !           245: //
        !           246:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           247:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           248: 
        !           249: //
        !           250: // stop scanning each line twice
        !           251: //
        !           252:        VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
        !           253:        VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
        !           254: 
        !           255: //
        !           256: // change the CRTC from doubleword to byte mode
        !           257: //
        !           258:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !           259:        VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
        !           260:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !           261:        VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
        !           262: 
        !           263: //
        !           264: // set the vertical counts for 350-scan-line mode and 360 pixels across
        !           265: //
        !           266:        VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
        !           267:        VRS_WORD_OUT, CRTC_INDEX, 0x5901,
        !           268:        VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
        !           269:        VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
        !           270:        VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
        !           271:        VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
        !           272:        VRS_WORD_OUT, CRTC_INDEX, 0xBF06,
        !           273:        VRS_WORD_OUT, CRTC_INDEX, 0x1F07,
        !           274:        VRS_WORD_OUT, CRTC_INDEX, 0x8310,
        !           275:        VRS_WORD_OUT, CRTC_INDEX, 0x8511,
        !           276:        VRS_WORD_OUT, CRTC_INDEX, 0x5D12,
        !           277:        VRS_WORD_OUT, CRTC_INDEX, 0x3013,
        !           278:        VRS_WORD_OUT, CRTC_INDEX, 0x6315,
        !           279:        VRS_WORD_OUT, CRTC_INDEX, 0xBA16,
        !           280: 
        !           281:        VRS_END,
        !           282: };
        !           283: 
        !           284: int vrs320x400x256planar[] = {
        !           285: //
        !           286: // switch to linear, non-chain4 mode
        !           287: //
        !           288:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           289:        VRS_BYTE_OUT, SC_DATA,  1,
        !           290: 
        !           291: 
        !           292:        VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
        !           293:        VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
        !           294:        VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
        !           295:        VRS_BYTE_RMW, GC_DATA, ~0x10, 0x00,
        !           296:        VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
        !           297:        VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
        !           298: 
        !           299:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           300:        VRS_BYTE_OUT, SC_DATA,  3,
        !           301: 
        !           302: //
        !           303: // stop scanning each line twice
        !           304: //
        !           305:        VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
        !           306:        VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
        !           307: 
        !           308: //
        !           309: // change the CRTC from doubleword to byte mode
        !           310: //
        !           311:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !           312:        VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
        !           313:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !           314:        VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
        !           315: 
        !           316:        VRS_END,
        !           317: };
        !           318: 
        !           319: int vrs360x400x256planar[] = {
        !           320: //
        !           321: // switch to linear, non-chain4 mode
        !           322: //
        !           323:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           324:        VRS_BYTE_OUT, SC_DATA,  1,
        !           325: 
        !           326:        VRS_WORD_OUT, SC_INDEX, 0x0604,
        !           327:        VRS_BYTE_OUT, MISC_OUTPUT, 0x67,
        !           328: 
        !           329:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           330:        VRS_BYTE_OUT, SC_DATA,  3,
        !           331: 
        !           332: //
        !           333: // unprotect CRTC0 through CRTC0
        !           334: //
        !           335:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           336:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           337: 
        !           338: //
        !           339: // stop scanning each line twice
        !           340: //
        !           341:        VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
        !           342:        VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
        !           343: 
        !           344: //
        !           345: // change the CRTC from doubleword to byte mode
        !           346: //
        !           347:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !           348:        VRS_BYTE_RMW, CRTC_DATA,  ~0x40, 0x00,
        !           349:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !           350:        VRS_BYTE_RMW, CRTC_DATA,  ~0x00, 0x40,
        !           351: 
        !           352: //
        !           353: // set up the CRT Controller
        !           354: //
        !           355:        VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
        !           356:        VRS_WORD_OUT, CRTC_INDEX, 0x5901,
        !           357:        VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
        !           358:        VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
        !           359:        VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
        !           360:        VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
        !           361:        VRS_WORD_OUT, CRTC_INDEX, 0x3013,
        !           362: 
        !           363:        VRS_END,
        !           364: };
        !           365: 
        !           366: int vrs320x480x256planar[] = {
        !           367: //
        !           368: // switch to linear, non-chain4 mode
        !           369: //
        !           370:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           371:        VRS_BYTE_OUT, SC_DATA,  1,
        !           372: 
        !           373:        VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
        !           374:        VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
        !           375:        VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
        !           376:        VRS_BYTE_RMW, GC_DATA, ~0x10, 0x00,
        !           377:        VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
        !           378:        VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
        !           379: 
        !           380:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           381:        VRS_BYTE_OUT, SC_DATA,  3,
        !           382: 
        !           383: //
        !           384: // unprotect CRTC0 through CRTC0
        !           385: //
        !           386:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           387:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           388: 
        !           389: //
        !           390: // stop scanning each line twice
        !           391: //
        !           392:        VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
        !           393:        VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
        !           394: 
        !           395: //
        !           396: // change the CRTC from doubleword to byte mode
        !           397: //
        !           398:        VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
        !           399:        VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
        !           400:        VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
        !           401:        VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
        !           402: 
        !           403: //
        !           404: // set up the CRT Controller
        !           405: //
        !           406:        VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
        !           407:        VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
        !           408:        VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
        !           409:        VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
        !           410:        VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
        !           411:        VRS_WORD_OUT, CRTC_INDEX, 0xE715,
        !           412:        VRS_WORD_OUT, CRTC_INDEX, 0x0616,
        !           413: 
        !           414:        VRS_END,
        !           415: };
        !           416: 
        !           417: int vrs360x480x256planar[] = {
        !           418: //
        !           419: // switch to linear, non-chain4 mode
        !           420: //
        !           421:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           422:        VRS_BYTE_OUT, SC_DATA,  1,
        !           423: 
        !           424:        VRS_WORD_OUT, SC_INDEX, 0x0604,
        !           425:        VRS_BYTE_OUT, MISC_OUTPUT, 0xE7,
        !           426: 
        !           427:        VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
        !           428:        VRS_BYTE_OUT, SC_DATA,  3,
        !           429: 
        !           430: //
        !           431: // unprotect CRTC0 through CRTC0
        !           432: //
        !           433:        VRS_BYTE_OUT, CRTC_INDEX, 0x11,
        !           434:        VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
        !           435: 
        !           436: //
        !           437: // set up the CRT Controller
        !           438: //
        !           439:        VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
        !           440:        VRS_WORD_OUT, CRTC_INDEX, 0x5901,
        !           441:        VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
        !           442:        VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
        !           443:        VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
        !           444:        VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
        !           445:        VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
        !           446:        VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
        !           447:        VRS_WORD_OUT, CRTC_INDEX, 0x4009,
        !           448:        VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
        !           449:        VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
        !           450:        VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
        !           451:        VRS_WORD_OUT, CRTC_INDEX, 0x3013,
        !           452:        VRS_WORD_OUT, CRTC_INDEX, 0x0014,
        !           453:        VRS_WORD_OUT, CRTC_INDEX, 0xE715,
        !           454:        VRS_WORD_OUT, CRTC_INDEX, 0x0616,
        !           455:        VRS_WORD_OUT, CRTC_INDEX, 0xE317,
        !           456: 
        !           457:        VRS_END,
        !           458: };
        !           459: 
        !           460: //
        !           461: // extra VGA-specific data for vgavidmodes
        !           462: //
        !           463: vextra_t       extra320x200x256linear = {
        !           464:        1, vrsnull
        !           465: };
        !           466: vextra_t       extra320x200x256planar = {
        !           467:        1, vrs320x200x256planar
        !           468: };
        !           469: vextra_t       extra360x200x256planar = {
        !           470:        1, vrs360x200x256planar
        !           471: };
        !           472: vextra_t       extra320x240x256planar = {
        !           473:        1, vrs320x240x256planar
        !           474: };
        !           475: vextra_t       extra360x240x256planar = {
        !           476:        1, vrs360x240x256planar
        !           477: };
        !           478: vextra_t       extra320x350x256planar = {
        !           479:        1, vrs320x350x256planar
        !           480: };
        !           481: vextra_t       extra360x350x256planar = {
        !           482:        1, vrs360x350x256planar
        !           483: };
        !           484: vextra_t       extra320x400x256planar = {
        !           485:        1, vrs320x400x256planar
        !           486: };
        !           487: vextra_t       extra360x400x256planar = {
        !           488:        1, vrs360x400x256planar
        !           489: };
        !           490: vextra_t       extra320x480x256planar = {
        !           491:        1, vrs320x480x256planar
        !           492: };
        !           493: vextra_t       extra360x480x256planar = {
        !           494:        1, vrs360x480x256planar
        !           495: };
        !           496: 
        !           497: //
        !           498: // base mode descriptors, in ascending order of number of pixels
        !           499: //
        !           500: 
        !           501: vmode_t        vgavidmodes[] = {
        !           502: {
        !           503:        NULL,
        !           504:        "320x200", "    ***** standard VGA modes *****    ",
        !           505:        320, 200, (200.0/320.0)*(320.0/240.0), 320, 0, 1, &extra320x200x256linear,
        !           506:        VGA_InitMode, VGA_SwapBuffers, VGA_SetPalette,
        !           507:        VGA_BeginDirectRect, VGA_EndDirectRect
        !           508: },
        !           509: {
        !           510:        NULL,
        !           511:        "320x200", "    ***** Mode X-style modes *****    ",
        !           512:        320, 200, (200.0/320.0)*(320.0/240.0), 320, 1, 1, &extra320x200x256planar,
        !           513:        VGA_InitMode, VGA_SwapBuffers, VGA_SetPalette,
        !           514:        VGA_BeginDirectRect, VGA_EndDirectRect
        !           515: },
        !           516: {
        !           517:        NULL,
        !           518:        "360x200", NULL, 360, 200, (200.0/360.0)*(320.0/240.0),
        !           519:        384, 1, 1, &extra360x200x256planar, VGA_InitMode,
        !           520:        VGA_SwapBuffers, 
        !           521:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           522: },
        !           523: {
        !           524:        NULL,
        !           525:        "320x240", NULL, 320, 240, (240.0/320.0)*(320.0/240.0),
        !           526:        320, 1, 1, &extra320x240x256planar, VGA_InitMode,
        !           527:        VGA_SwapBuffers, 
        !           528:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           529: },
        !           530: {
        !           531:        NULL,
        !           532:        "360x240", NULL, 360, 240, (240.0/360.0)*(320.0/240.0),
        !           533:        384, 1, 1, &extra360x240x256planar,
        !           534:        VGA_InitMode, VGA_SwapBuffers, VGA_SetPalette,
        !           535:        VGA_BeginDirectRect, VGA_EndDirectRect
        !           536: },
        !           537: {
        !           538:        NULL,
        !           539:        "320x350", NULL, 320, 350, (350.0/320.0)*(320.0/240.0),
        !           540:        320, 1, 1, &extra320x350x256planar, VGA_InitMode,
        !           541:        VGA_SwapBuffers, 
        !           542:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           543: },
        !           544: {
        !           545:        NULL,
        !           546:        "360x350", NULL, 360, 350, (350.0/360.0)*(320.0/240.0),
        !           547:        384, 1, 1, &extra360x350x256planar, VGA_InitMode,
        !           548:        VGA_SwapBuffers, 
        !           549:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           550: },
        !           551: {
        !           552:        NULL,
        !           553:        "320x400", NULL, 320, 400, (400.0/320.0)*(320.0/240.0), 320,
        !           554:        1, 1, &extra320x400x256planar, VGA_InitMode,
        !           555:        VGA_SwapBuffers, 
        !           556:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           557: },
        !           558: {
        !           559:        NULL,
        !           560:        "360x400", NULL, 360, 400, (400.0/360.0)*(320.0/240.0),
        !           561:        384, 1, 1, &extra360x400x256planar, VGA_InitMode,
        !           562:        VGA_SwapBuffers, 
        !           563:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           564: },
        !           565: {
        !           566:        NULL,
        !           567:        "320x480", NULL, 320, 480, (480.0/320.0)*(320.0/240.0),
        !           568:        320, 1, 1, &extra320x480x256planar, VGA_InitMode,
        !           569:        VGA_SwapBuffers, 
        !           570:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           571: },
        !           572: {
        !           573:        NULL,
        !           574:        "360x480", NULL, 360, 480, (480.0/360.0)*(320.0/240.0),
        !           575:        384, 1, 1, &extra360x480x256planar, VGA_InitMode,
        !           576:        VGA_SwapBuffers, 
        !           577:        VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
        !           578: },
        !           579: };
        !           580: 

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