Added MDSI Genius emulation. Patch from John Elliott.
This commit is contained in:
SarahW
parent
1cb83a4dc1
commit
2acbcece0e
10 changed files with 653 additions and 7 deletions
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@ -27,7 +27,7 @@ sound_ad1848.c sound_adlib.c sound_adlibgold.c sound_cms.c sound_emu8k.c sound_g
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sound_mpu401_uart.c sound_opl.c sound_pas16.c sound_ps1.c sound_pssj.c sound_sb.c sound_sb_dsp.c sound_sn76489.c \
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sound_mpu401_uart.c sound_opl.c sound_pas16.c sound_ps1.c sound_pssj.c sound_sb.c sound_sb_dsp.c sound_sn76489.c \
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sound_speaker.c sound_ssi2001.c sound_wss.c sound_ym7128.c soundopenal.c tandy_eeprom.c tandy_rom.c thread-pthread.c \
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sound_speaker.c sound_ssi2001.c sound_wss.c sound_ym7128.c soundopenal.c tandy_eeprom.c tandy_rom.c thread-pthread.c \
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timer.c um8669f.c um8881f.c vid_ati_eeprom.c vid_ati_mach64.c vid_ati18800.c vid_ati28800.c \
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timer.c um8669f.c um8881f.c vid_ati_eeprom.c vid_ati_mach64.c vid_ati18800.c vid_ati28800.c \
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vid_ati68860_ramdac.c vid_cga.c vid_cl5429.c vid_colorplus.c vid_ega.c vid_et4000.c vid_et4000w32.c vid_hercules.c \
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vid_ati68860_ramdac.c vid_cga.c vid_cl5429.c vid_colorplus.c vid_ega.c vid_et4000.c vid_et4000w32.c vid_genius.c vid_hercules.c \
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vid_icd2061.c vid_ics2595.c vid_incolor.c vid_mda.c vid_olivetti_m24.c vid_oti067.c vid_paradise.c vid_pc200.c \
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vid_icd2061.c vid_ics2595.c vid_incolor.c vid_mda.c vid_olivetti_m24.c vid_oti067.c vid_paradise.c vid_pc200.c \
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vid_pc1512.c vid_pc1640.c vid_pcjr.c vid_ps1_svga.c vid_s3.c vid_s3_virge.c vid_sdac_ramdac.c \
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vid_pc1512.c vid_pc1640.c vid_pcjr.c vid_ps1_svga.c vid_s3.c vid_s3_virge.c vid_sdac_ramdac.c \
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vid_stg_ramdac.c vid_svga.c vid_svga_render.c vid_tandy.c vid_tandysl.c vid_tgui9440.c \
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vid_stg_ramdac.c vid_svga.c vid_svga_render.c vid_tandy.c vid_tandysl.c vid_tgui9440.c \
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@ -16,7 +16,7 @@ sound_ad1848.o sound_adlib.o sound_adlibgold.o sound_cms.o sound_emu8k.o sound_g
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sound_mpu401_uart.o sound_opl.o sound_pas16.o sound_ps1.o sound_pssj.o sound_sb.o sound_sb_dsp.o sound_sn76489.o \
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sound_mpu401_uart.o sound_opl.o sound_pas16.o sound_ps1.o sound_pssj.o sound_sb.o sound_sb_dsp.o sound_sn76489.o \
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sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o soundopenal.o tandy_eeprom.o tandy_rom.o thread-pthread.o \
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sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o soundopenal.o tandy_eeprom.o tandy_rom.o thread-pthread.o \
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timer.o um8669f.o um8881f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o vid_ati28800.o \
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timer.o um8669f.o um8881f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o vid_ati28800.o \
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vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o vid_et4000w32.o vid_hercules.o \
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vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o vid_et4000w32.o vid_genius.o vid_hercules.o \
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vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc200.o \
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vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc200.o \
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vid_pc1512.o vid_pc1640.o vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o \
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vid_pc1512.o vid_pc1640.o vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o \
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vid_stg_ramdac.o vid_svga.o vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o \
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vid_stg_ramdac.o vid_svga.o vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o \
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@ -15,7 +15,7 @@ sound_ad1848.o sound_adlib.o sound_adlibgold.o sound_cms.o sound_emu8k.o sound_g
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sound_mpu401_uart.o sound_opl.o sound_pas16.o sound_ps1.o sound_pssj.o sound_sb.o sound_sb_dsp.o sound_sn76489.o \
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sound_mpu401_uart.o sound_opl.o sound_pas16.o sound_ps1.o sound_pssj.o sound_sb.o sound_sb_dsp.o sound_sn76489.o \
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sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o soundopenal.o tandy_eeprom.o tandy_rom.o thread-pthread.o \
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sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o soundopenal.o tandy_eeprom.o tandy_rom.o thread-pthread.o \
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timer.o um8669f.o um8881f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o vid_ati28800.o \
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timer.o um8669f.o um8881f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o vid_ati28800.o \
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vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o vid_et4000w32.o vid_hercules.o \
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vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o vid_et4000w32.o vid_genius.o vid_hercules.o \
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vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc200.o \
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vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc200.o \
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vid_pc1512.o vid_pc1640.o vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o \
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vid_pc1512.o vid_pc1640.o vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o \
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vid_stg_ramdac.o vid_svga.o vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o \
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vid_stg_ramdac.o vid_svga.o vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o \
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@ -14,7 +14,7 @@ OBJ = 386.o 386_dynarec.o 386_dynarec_ops.o 808x.o acer386sx.o ali1429.o amstrad
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sound_sb.o sound_sb_dsp.o sound_sn76489.o sound_speaker.o sound_ssi2001.o sound_wss.o \
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sound_sb.o sound_sb_dsp.o sound_sn76489.o sound_speaker.o sound_ssi2001.o sound_wss.o \
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sound_ym7128.o soundopenal.o tandy_eeprom.o tandy_rom.o timer.o um8881f.o um8669f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o \
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sound_ym7128.o soundopenal.o tandy_eeprom.o tandy_rom.o timer.o um8881f.o um8669f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o \
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vid_ati28800.o vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o \
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vid_ati28800.o vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o \
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vid_et4000w32.o vid_et4000w32i.o vid_hercules.o vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o \
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vid_et4000w32.o vid_et4000w32i.o vid_genius.o vid_hercules.o vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o \
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vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc1512.o vid_pc1640.o vid_pc200.o \
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vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc1512.o vid_pc1640.o vid_pc200.o \
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vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o vid_stg_ramdac.o vid_svga.o \
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vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o vid_stg_ramdac.o vid_svga.o \
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vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o vid_tkd8001_ramdac.o vid_tvga.o vid_unk_ramdac.o \
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vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o vid_tkd8001_ramdac.o vid_tvga.o vid_unk_ramdac.o \
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@ -14,7 +14,7 @@ OBJ = 386.o 386_dynarec.o 386_dynarec_ops.o 808x.o acer386sx.o ali1429.o amstrad
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sound_sb.o sound_sb_dsp.o sound_sn76489.o sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o \
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sound_sb.o sound_sb_dsp.o sound_sn76489.o sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o \
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soundopenal.o tandy_eeprom.o tandy_rom.o timer.o um8881f.o um8669f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o \
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soundopenal.o tandy_eeprom.o tandy_rom.o timer.o um8881f.o um8669f.o vid_ati_eeprom.o vid_ati_mach64.o vid_ati18800.o \
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vid_ati28800.o vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o \
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vid_ati28800.o vid_ati68860_ramdac.o vid_cga.o vid_cl5429.o vid_colorplus.o vid_ega.o vid_et4000.o \
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vid_et4000w32.o vid_et4000w32i.o vid_hercules.o vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o \
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vid_et4000w32.o vid_et4000w32i.o vid_genius.o vid_hercules.o vid_icd2061.o vid_ics2595.o vid_incolor.o vid_mda.o \
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vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc1512.o vid_pc1640.o vid_pc200.o \
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vid_olivetti_m24.o vid_oti067.o vid_paradise.o vid_pc1512.o vid_pc1640.o vid_pc200.o \
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vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o vid_stg_ramdac.o vid_svga.o \
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vid_pcjr.o vid_ps1_svga.o vid_s3.o vid_s3_virge.o vid_sdac_ramdac.o vid_stg_ramdac.o vid_svga.o \
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vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o vid_tkd8001_ramdac.o vid_tvga.o vid_unk_ramdac.o \
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vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui9440.o vid_tkd8001_ramdac.o vid_tvga.o vid_unk_ramdac.o \
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@ -332,8 +332,8 @@ int disctime;
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char discfns[2][256];
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char discfns[2][256];
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int driveempty[2];
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int driveempty[2];
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#define MDA ((gfxcard==GFX_MDA || gfxcard==GFX_HERCULES || gfxcard==GFX_INCOLOR) && (romset<ROM_TANDY || romset>=ROM_IBMAT))
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#define MDA ((gfxcard==GFX_MDA || gfxcard==GFX_HERCULES || gfxcard==GFX_INCOLOR || gfxcard==GFX_GENIUS) && (romset<ROM_TANDY || romset>=ROM_IBMAT))
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#define VGA ((gfxcard>=GFX_TVGA || romset==ROM_ACER386) && gfxcard!=GFX_COLORPLUS && gfxcard!=GFX_INCOLOR && gfxcard!=GFX_WY700 && romset!=ROM_PC1640 && romset!=ROM_PC1512 && romset!=ROM_TANDY && romset!=ROM_PC200)
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#define VGA ((gfxcard>=GFX_TVGA || romset==ROM_ACER386) && gfxcard!=GFX_COLORPLUS && gfxcard!=GFX_INCOLOR && gfxcard!=GFX_WY700 && gfxcard!=GFX_GENIUS && romset!=ROM_PC1640 && romset!=ROM_PC1512 && romset!=ROM_TANDY && romset!=ROM_PC200)
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#define PCJR (romset == ROM_IBMPCJR)
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#define PCJR (romset == ROM_IBMPCJR)
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#define AMIBIOS (romset==ROM_AMI386SX || romset==ROM_AMI486 || romset == ROM_WIN486)
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#define AMIBIOS (romset==ROM_AMI386SX || romset==ROM_AMI486 || romset == ROM_WIN486)
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@ -421,6 +421,7 @@ enum
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GFX_INCOLOR, /* Hercules InColor */
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GFX_INCOLOR, /* Hercules InColor */
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GFX_COLORPLUS, /* Plantronics ColorPlus */
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GFX_COLORPLUS, /* Plantronics ColorPlus */
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GFX_WY700, /* Wyse 700 */
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GFX_WY700, /* Wyse 700 */
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GFX_GENIUS, /* MDSI Genius */
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GFX_MAX
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GFX_MAX
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};
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};
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@ -77,6 +77,7 @@ int loadbios()
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loadfont("roms/mda.rom", 0);
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loadfont("roms/mda.rom", 0);
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loadfont("roms/wy700.rom", 3);
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loadfont("roms/wy700.rom", 3);
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loadfont("roms/8x12.bin", 4);
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biosmask = 0xffff;
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biosmask = 0xffff;
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630
src/vid_genius.c
Normal file
630
src/vid_genius.c
Normal file
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@ -0,0 +1,630 @@
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/* MDSI Genius VHR emulation*/
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#include <stdlib.h>
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#include "ibm.h"
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#include "device.h"
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#include "mem.h"
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#include "timer.h"
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#include "video.h"
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#include "vid_genius.h"
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#define GENIUS_XSIZE 728
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#define GENIUS_YSIZE 1008
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void updatewindowsize(int x, int y);
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void loadfont(char *s, int format);
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extern uint8_t fontdat8x12[256][16];
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/* I'm at something of a disadvantage writing this emulation: I don't have an
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* MDSI Genius card, nor do I have the BIOS extension (VHRBIOS.SYS) that came
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* with it. What I do have are the GEM and Windows 1.04 drivers, plus a driver
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* for a later MCA version of the card. The latter can be found at
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* <http://files.mpoli.fi/hardware/DISPLAY/GENIUS/> and is necessary if you
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* want the Windows driver to work.
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*
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* This emulation appears to work correctly with:
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* The MCA drivers GMC_ANSI.SYS and INS_ANSI.SYS
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* The GEM driver SDGEN9.VGA
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* The Windows 1.04 driver GENIUS.DRV
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*
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* As far as I can see, the card uses a fixed resolution of 728x1008 pixels.
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* It has the following modes of operation:
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*
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* > MDA-compatible: 80x25 text, each character 9x15 pixels.
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* > CGA-compatible: 640x200 mono graphics
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* > Dual: MDA text in the top half, CGA graphics in the bottom
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* > Native text: 80x66 text, each character 9x15 pixels.
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* > Native graphics: 728x1008 mono graphics.
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*
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* Under the covers, this seems to translate to:
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* > Text framebuffer. At B000:0000, 16k. Displayed if enable bit is set
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* in the MDA control register.
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* > Graphics framebuffer. In native modes goes from A000:0000 to A000:FFFF
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* and B800:0000 to B800:FFFF. In CGA-compatible
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* mode only the section at B800:0000 to B800:7FFF
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* is visible. Displayed if enable bit is set in the
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* CGA control register.
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*
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* Two card-specific registers control text and graphics display:
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*
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* 03B0: Control register.
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* Bit 0: Map all graphics framebuffer into memory.
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* Bit 2: Unknown. Set by GMC /M; cleared by mode set or GMC /T.
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* Bit 4: Set for CGA-compatible graphics, clear for native graphics.
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* Bit 5: Set for black on white, clear for white on black.
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*
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* 03B1: Character height register.
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* Bits 0-1: Character cell height (0 => 15, 1 => 14, 2 => 13, 3 => 12)
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* Bit 4: Set to double character cell height (scanlines are doubled)
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* Bit 7: Unknown, seems to be set for all modes except 80x66
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*
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* Not having the card also means I don't have its font. According to the
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* card brochure the font is an 8x12 bitmap in a 9x15 character cell. I
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* therefore generated it by taking the MDA font, increasing graphics to
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* 16 pixels in height and reducing the height of characters so they fit
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* in an 8x12 cell if necessary.
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*/
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typedef struct genius_t
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{
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mem_mapping_t mapping;
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uint8_t mda_crtc[32]; /* The 'CRTC' as the host PC sees it */
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int mda_crtcreg; /* Current CRTC register */
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uint8_t genius_control; /* Native control register
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* I think bit 0 enables the full
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* framebuffer.
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*/
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uint8_t genius_charh; /* Native character height register:
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* 00h => chars are 15 pixels high
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* 81h => chars are 14 pixels high
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* 83h => chars are 12 pixels high
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* 90h => chars are 30 pixels high [15 x 2]
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* 93h => chars are 24 pixels high [12 x 2]
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*/
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uint8_t genius_mode; /* Current mode (see list at top of file) */
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uint8_t cga_ctrl; /* Emulated CGA control register */
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uint8_t mda_ctrl; /* Emulated MDA control register */
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uint8_t cga_colour; /* Emulated CGA colour register (ignored) */
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uint8_t mda_stat; /* MDA status (IN 0x3BA) */
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uint8_t cga_stat; /* CGA status (IN 0x3DA) */
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int font; /* Current font, 0 or 1 */
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int enabled; /* Display enabled, 0 or 1 */
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int detach; /* Detach cursor, 0 or 1 */
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int dispontime, dispofftime;
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int vidtime;
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int linepos, displine;
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int vc;
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||||||
|
int dispon, blink;
|
||||||
|
int vsynctime;
|
||||||
|
|
||||||
|
uint8_t *vram;
|
||||||
|
} genius_t;
|
||||||
|
|
||||||
|
/* Mapping of attributes to colours, in MDA emulation mode */
|
||||||
|
static int mdacols[256][2][2];
|
||||||
|
|
||||||
|
void genius_recalctimings(genius_t *genius);
|
||||||
|
void genius_write(uint32_t addr, uint8_t val, void *p);
|
||||||
|
uint8_t genius_read(uint32_t addr, void *p);
|
||||||
|
|
||||||
|
|
||||||
|
void genius_out(uint16_t addr, uint8_t val, void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
|
||||||
|
switch (addr)
|
||||||
|
{
|
||||||
|
case 0x3b0: /* Command / control register */
|
||||||
|
genius->genius_control = val;
|
||||||
|
if (val & 1)
|
||||||
|
{
|
||||||
|
mem_mapping_set_addr(&genius->mapping, 0xa0000, 0x28000);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
mem_mapping_set_addr(&genius->mapping, 0xb0000, 0x10000);
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 0x3b1:
|
||||||
|
genius->genius_charh = val;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Emulated CRTC, register select */
|
||||||
|
case 0x3b2: case 0x3b4: case 0x3b6:
|
||||||
|
case 0x3d0: case 0x3d2: case 0x3d4: case 0x3d6:
|
||||||
|
genius->mda_crtcreg = val & 31;
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* Emulated CRTC, value */
|
||||||
|
case 0x3b3: case 0x3b5: case 0x3b7:
|
||||||
|
case 0x3d1: case 0x3d3: case 0x3d5: case 0x3d7:
|
||||||
|
genius->mda_crtc[genius->mda_crtcreg] = val;
|
||||||
|
genius_recalctimings(genius);
|
||||||
|
return;
|
||||||
|
|
||||||
|
/* Emulated MDA control register */
|
||||||
|
case 0x3b8:
|
||||||
|
genius->mda_ctrl = val;
|
||||||
|
return;
|
||||||
|
/* Emulated CGA control register */
|
||||||
|
case 0x3D8:
|
||||||
|
genius->cga_ctrl = val;
|
||||||
|
return;
|
||||||
|
/* Emulated CGA colour register */
|
||||||
|
case 0x3D9:
|
||||||
|
genius->cga_colour = val;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
uint8_t genius_in(uint16_t addr, void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
|
||||||
|
switch (addr)
|
||||||
|
{
|
||||||
|
case 0x3b0: case 0x3b2: case 0x3b4: case 0x3b6:
|
||||||
|
case 0x3d0: case 0x3d2: case 0x3d4: case 0x3d6:
|
||||||
|
return genius->mda_crtcreg;
|
||||||
|
case 0x3b1: case 0x3b3: case 0x3b5: case 0x3b7:
|
||||||
|
case 0x3d1: case 0x3d3: case 0x3d5: case 0x3d7:
|
||||||
|
return genius->mda_crtc[genius->mda_crtcreg];
|
||||||
|
case 0x3b8:
|
||||||
|
return genius->mda_ctrl;
|
||||||
|
case 0x3d9:
|
||||||
|
return genius->cga_colour;
|
||||||
|
case 0x3ba:
|
||||||
|
return genius->mda_stat;
|
||||||
|
case 0x3d8:
|
||||||
|
return genius->cga_ctrl;
|
||||||
|
case 0x3da:
|
||||||
|
return genius->cga_stat;
|
||||||
|
}
|
||||||
|
return 0xff;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
void genius_write(uint32_t addr, uint8_t val, void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
egawrites++;
|
||||||
|
|
||||||
|
if (genius->genius_control & 1)
|
||||||
|
{
|
||||||
|
addr = addr % 0x28000;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
/* If hi-res memory is disabled, only visible in the B000 segment */
|
||||||
|
{
|
||||||
|
addr = (addr & 0xFFFF) + 0x10000;
|
||||||
|
}
|
||||||
|
genius->vram[addr] = val;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
uint8_t genius_read(uint32_t addr, void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
egareads++;
|
||||||
|
|
||||||
|
if (genius->genius_control & 1)
|
||||||
|
{
|
||||||
|
addr = addr % 0x28000;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
/* If hi-res memory is disabled, only visible in the B000 segment */
|
||||||
|
{
|
||||||
|
addr = (addr & 0xFFFF) + 0x10000;
|
||||||
|
}
|
||||||
|
return genius->vram[addr];
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
void genius_recalctimings(genius_t *genius)
|
||||||
|
{
|
||||||
|
double disptime;
|
||||||
|
double _dispontime, _dispofftime;
|
||||||
|
|
||||||
|
disptime = 0x31;
|
||||||
|
_dispontime = 0x28;
|
||||||
|
_dispofftime = disptime - _dispontime;
|
||||||
|
_dispontime *= MDACONST;
|
||||||
|
_dispofftime *= MDACONST;
|
||||||
|
genius->dispontime = (int)(_dispontime * (1 << TIMER_SHIFT));
|
||||||
|
genius->dispofftime = (int)(_dispofftime * (1 << TIMER_SHIFT));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* Draw a single line of the screen in either text mode */
|
||||||
|
void genius_textline(genius_t *genius, uint8_t background)
|
||||||
|
{
|
||||||
|
int x;
|
||||||
|
int w = 80; /* 80 characters across */
|
||||||
|
int cw = 9; /* Each character is 9 pixels wide */
|
||||||
|
uint8_t chr, attr, fg, bg;
|
||||||
|
uint8_t bitmap[2];
|
||||||
|
int blink, c, row;
|
||||||
|
int drawcursor, cursorline;
|
||||||
|
uint16_t addr;
|
||||||
|
uint8_t sc;
|
||||||
|
int charh;
|
||||||
|
uint16_t ma = (genius->mda_crtc[13] | (genius->mda_crtc[12] << 8)) & 0x3fff;
|
||||||
|
uint16_t ca = (genius->mda_crtc[15] | (genius->mda_crtc[14] << 8)) & 0x3fff;
|
||||||
|
unsigned char *framebuf = genius->vram + 0x10000;
|
||||||
|
uint8_t col;
|
||||||
|
|
||||||
|
/* Character height is 12-15 */
|
||||||
|
charh = 15 - (genius->genius_charh & 3);
|
||||||
|
if (genius->genius_charh & 0x10)
|
||||||
|
{
|
||||||
|
row = ((genius->displine >> 1) / charh);
|
||||||
|
sc = ((genius->displine >> 1) % charh);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
row = (genius->displine / charh);
|
||||||
|
sc = (genius->displine % charh);
|
||||||
|
}
|
||||||
|
addr = ((ma & ~1) + row * w) * 2;
|
||||||
|
|
||||||
|
ma += (row * w);
|
||||||
|
|
||||||
|
if ((genius->mda_crtc[10] & 0x60) == 0x20)
|
||||||
|
{
|
||||||
|
cursorline = 0;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
cursorline = ((genius->mda_crtc[10] & 0x1F) <= sc) &&
|
||||||
|
((genius->mda_crtc[11] & 0x1F) >= sc);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (x = 0; x < w; x++)
|
||||||
|
{
|
||||||
|
chr = framebuf[(addr + 2 * x) & 0x3FFF];
|
||||||
|
attr = framebuf[(addr + 2 * x + 1) & 0x3FFF];
|
||||||
|
drawcursor = ((ma == ca) && cursorline && genius->enabled &&
|
||||||
|
(genius->mda_ctrl & 8));
|
||||||
|
|
||||||
|
switch (genius->mda_crtc[10] & 0x60)
|
||||||
|
{
|
||||||
|
case 0x00: drawcursor = drawcursor && (genius->blink & 16); break;
|
||||||
|
case 0x60: drawcursor = drawcursor && (genius->blink & 32); break;
|
||||||
|
}
|
||||||
|
blink = ((genius->blink & 16) &&
|
||||||
|
(genius->mda_ctrl & 0x20) &&
|
||||||
|
(attr & 0x80) && !drawcursor);
|
||||||
|
|
||||||
|
if (genius->mda_ctrl & 0x20) attr &= 0x7F;
|
||||||
|
/* MDA underline */
|
||||||
|
if (sc == charh && ((attr & 7) == 1))
|
||||||
|
{
|
||||||
|
col = mdacols[attr][blink][1];
|
||||||
|
|
||||||
|
if (genius->genius_control & 0x20)
|
||||||
|
{
|
||||||
|
col ^= 15;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (c = 0; c < cw; c++)
|
||||||
|
{
|
||||||
|
if (col != background)
|
||||||
|
buffer->line[genius->displine][(x * cw) + c] = col;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else /* Draw 8 pixels of character */
|
||||||
|
{
|
||||||
|
bitmap[0] = fontdat8x12[chr][sc];
|
||||||
|
for (c = 0; c < 8; c++)
|
||||||
|
{
|
||||||
|
col = mdacols[attr][blink][(bitmap[0] & (1 << (c ^ 7))) ? 1 : 0];
|
||||||
|
if (!(genius->enabled) || !(genius->mda_ctrl & 8))
|
||||||
|
col = mdacols[0][0][0];
|
||||||
|
|
||||||
|
if (genius->genius_control & 0x20)
|
||||||
|
{
|
||||||
|
col ^= 15;
|
||||||
|
}
|
||||||
|
if (col != background)
|
||||||
|
{
|
||||||
|
buffer->line[genius->displine][(x * cw) + c] = col;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* The ninth pixel column... */
|
||||||
|
if ((chr & ~0x1f) == 0xc0)
|
||||||
|
{
|
||||||
|
/* Echo column 8 for the graphics chars */
|
||||||
|
col = buffer->line[genius->displine][(x * cw) + 7];
|
||||||
|
if (col != background) buffer->line[genius->displine][(x * cw) + 8] = col;
|
||||||
|
}
|
||||||
|
else /* Otherwise fill with background */
|
||||||
|
{
|
||||||
|
col = mdacols[attr][blink][0];
|
||||||
|
if (genius->genius_control & 0x20)
|
||||||
|
{
|
||||||
|
col ^= 15;
|
||||||
|
}
|
||||||
|
if (col != background) buffer->line[genius->displine][(x * cw) + 8] = col;
|
||||||
|
}
|
||||||
|
if (drawcursor)
|
||||||
|
{
|
||||||
|
for (c = 0; c < cw; c++)
|
||||||
|
buffer->line[genius->displine][(x * cw) + c] ^= mdacols[attr][0][1];
|
||||||
|
}
|
||||||
|
++ma;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/* Draw a line in the CGA 640x200 mode */
|
||||||
|
void genius_cgaline(genius_t *genius)
|
||||||
|
{
|
||||||
|
int x, c;
|
||||||
|
uint32_t dat;
|
||||||
|
uint8_t bitmap, ink;
|
||||||
|
uint32_t addr;
|
||||||
|
|
||||||
|
ink = (genius->genius_control & 0x20) ? 16 : 16+15;
|
||||||
|
/* We draw the CGA at row 600 */
|
||||||
|
if (genius->displine < 600)
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
addr = 0x18000 + 80 * ((genius->displine - 600) >> 2);
|
||||||
|
if ((genius->displine - 600) & 2)
|
||||||
|
{
|
||||||
|
addr += 0x2000;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (x = 0; x < 80; x++)
|
||||||
|
{
|
||||||
|
dat = genius->vram[addr];
|
||||||
|
addr++;
|
||||||
|
|
||||||
|
for (c = 0; c < 8; c++)
|
||||||
|
{
|
||||||
|
if (dat & 0x80)
|
||||||
|
{
|
||||||
|
buffer->line[genius->displine][x*8 + c] = ink;
|
||||||
|
}
|
||||||
|
dat = dat << 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/* Draw a line in the native high-resolution mode */
|
||||||
|
void genius_hiresline(genius_t *genius)
|
||||||
|
{
|
||||||
|
int x, c;
|
||||||
|
uint32_t dat;
|
||||||
|
uint8_t bitmap, ink;
|
||||||
|
uint32_t addr;
|
||||||
|
|
||||||
|
ink = (genius->genius_control & 0x20) ? 16 : 16+15;
|
||||||
|
/* The first 512 lines live at A0000 */
|
||||||
|
if (genius->displine < 512)
|
||||||
|
{
|
||||||
|
addr = 128 * genius->displine;
|
||||||
|
}
|
||||||
|
else /* The second 496 live at B8000 */
|
||||||
|
{
|
||||||
|
addr = 0x18000 + 128 * (genius->displine - 512);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (x = 0; x < 91; x++)
|
||||||
|
{
|
||||||
|
dat = genius->vram[addr];
|
||||||
|
addr++;
|
||||||
|
|
||||||
|
for (c = 0; c < 8; c++)
|
||||||
|
{
|
||||||
|
if (dat & 0x80)
|
||||||
|
{
|
||||||
|
buffer->line[genius->displine][x*8 + c] = ink;
|
||||||
|
}
|
||||||
|
dat = dat << 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
void genius_poll(void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
int x, c;
|
||||||
|
int oldvc;
|
||||||
|
uint8_t background;
|
||||||
|
uint16_t dat;
|
||||||
|
int mode;
|
||||||
|
|
||||||
|
if (!genius->linepos)
|
||||||
|
{
|
||||||
|
genius->vidtime += genius->dispofftime;
|
||||||
|
genius->cga_stat |= 1;
|
||||||
|
genius->mda_stat |= 1;
|
||||||
|
genius->linepos = 1;
|
||||||
|
if (genius->dispon)
|
||||||
|
{
|
||||||
|
if (genius->genius_control & 0x20)
|
||||||
|
{
|
||||||
|
background = 16 + 15;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
background = 16;
|
||||||
|
}
|
||||||
|
if (genius->displine == 0)
|
||||||
|
{
|
||||||
|
video_wait_for_buffer();
|
||||||
|
}
|
||||||
|
/* Start off with a blank line */
|
||||||
|
for (x = 0; x < GENIUS_XSIZE; x++)
|
||||||
|
{
|
||||||
|
buffer->line[genius->displine][x] = background;
|
||||||
|
}
|
||||||
|
/* If graphics display enabled, draw graphics on top
|
||||||
|
* of the blanked line */
|
||||||
|
if (genius->cga_ctrl & 8)
|
||||||
|
{
|
||||||
|
if (genius->genius_control & 8)
|
||||||
|
{
|
||||||
|
genius_cgaline(genius);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
genius_hiresline(genius);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* If MDA display is enabled, draw MDA text on top
|
||||||
|
* of the lot */
|
||||||
|
if (genius->mda_ctrl & 8)
|
||||||
|
{
|
||||||
|
genius_textline(genius, background);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
genius->displine++;
|
||||||
|
/* Hardcode a fixed refresh rate and VSYNC timing */
|
||||||
|
if (genius->displine == 1008) /* Start of VSYNC */
|
||||||
|
{
|
||||||
|
genius->cga_stat |= 8;
|
||||||
|
genius->dispon = 0;
|
||||||
|
}
|
||||||
|
if (genius->displine == 1040) /* End of VSYNC */
|
||||||
|
{
|
||||||
|
genius->displine = 0;
|
||||||
|
genius->cga_stat &= ~8;
|
||||||
|
genius->dispon = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
if (genius->dispon)
|
||||||
|
{
|
||||||
|
genius->cga_stat &= ~1;
|
||||||
|
genius->mda_stat &= ~1;
|
||||||
|
}
|
||||||
|
genius->vidtime += genius->dispontime;
|
||||||
|
genius->linepos = 0;
|
||||||
|
|
||||||
|
if (genius->displine == 1008)
|
||||||
|
{
|
||||||
|
/* Hardcode GENIUS_XSIZE * GENIUS_YSIZE window size */
|
||||||
|
if (GENIUS_XSIZE != xsize || GENIUS_YSIZE != ysize)
|
||||||
|
{
|
||||||
|
xsize = GENIUS_XSIZE;
|
||||||
|
ysize = GENIUS_YSIZE;
|
||||||
|
if (xsize < 64) xsize = 656;
|
||||||
|
if (ysize < 32) ysize = 200;
|
||||||
|
updatewindowsize(xsize, ysize);
|
||||||
|
}
|
||||||
|
video_blit_memtoscreen_8(0, 0, xsize, ysize);
|
||||||
|
|
||||||
|
frames++;
|
||||||
|
/* Fixed 728x1008 resolution */
|
||||||
|
video_res_x = GENIUS_XSIZE;
|
||||||
|
video_res_y = GENIUS_YSIZE;
|
||||||
|
video_bpp = 1;
|
||||||
|
genius->blink++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void *genius_init()
|
||||||
|
{
|
||||||
|
int c;
|
||||||
|
genius_t *genius = malloc(sizeof(genius_t));
|
||||||
|
memset(genius, 0, sizeof(genius_t));
|
||||||
|
|
||||||
|
/* 160k video RAM */
|
||||||
|
genius->vram = malloc(0x28000);
|
||||||
|
|
||||||
|
timer_add(genius_poll, &genius->vidtime, TIMER_ALWAYS_ENABLED, genius);
|
||||||
|
|
||||||
|
/* Occupy memory between 0xB0000 and 0xBFFFF (moves to 0xA0000 in
|
||||||
|
* high-resolution modes) */
|
||||||
|
mem_mapping_add(&genius->mapping, 0xb0000, 0x10000, genius_read, NULL, NULL, genius_write, NULL, NULL, NULL, 0, genius);
|
||||||
|
/* Respond to both MDA and CGA I/O ports */
|
||||||
|
io_sethandler(0x03b0, 0x000C, genius_in, NULL, NULL, genius_out, NULL, NULL, genius);
|
||||||
|
io_sethandler(0x03d0, 0x0010, genius_in, NULL, NULL, genius_out, NULL, NULL, genius);
|
||||||
|
|
||||||
|
/* MDA attributes */
|
||||||
|
/* I don't know if the Genius's MDA emulation actually does
|
||||||
|
* emulate bright / non-bright. For the time being pretend it does. */
|
||||||
|
for (c = 0; c < 256; c++)
|
||||||
|
{
|
||||||
|
mdacols[c][0][0] = mdacols[c][1][0] = mdacols[c][1][1] = 16;
|
||||||
|
if (c & 8) mdacols[c][0][1] = 15 + 16;
|
||||||
|
else mdacols[c][0][1] = 7 + 16;
|
||||||
|
}
|
||||||
|
mdacols[0x70][0][1] = 16;
|
||||||
|
mdacols[0x70][0][0] = mdacols[0x70][1][0] = mdacols[0x70][1][1] = 16 + 15;
|
||||||
|
mdacols[0xF0][0][1] = 16;
|
||||||
|
mdacols[0xF0][0][0] = mdacols[0xF0][1][0] = mdacols[0xF0][1][1] = 16 + 15;
|
||||||
|
mdacols[0x78][0][1] = 16 + 7;
|
||||||
|
mdacols[0x78][0][0] = mdacols[0x78][1][0] = mdacols[0x78][1][1] = 16 + 15;
|
||||||
|
mdacols[0xF8][0][1] = 16 + 7;
|
||||||
|
mdacols[0xF8][0][0] = mdacols[0xF8][1][0] = mdacols[0xF8][1][1] = 16 + 15;
|
||||||
|
mdacols[0x00][0][1] = mdacols[0x00][1][1] = 16;
|
||||||
|
mdacols[0x08][0][1] = mdacols[0x08][1][1] = 16;
|
||||||
|
mdacols[0x80][0][1] = mdacols[0x80][1][1] = 16;
|
||||||
|
mdacols[0x88][0][1] = mdacols[0x88][1][1] = 16;
|
||||||
|
|
||||||
|
/* Start off in 80x25 text mode */
|
||||||
|
genius->cga_stat = 0xF4;
|
||||||
|
genius->genius_mode = 2;
|
||||||
|
genius->enabled = 1;
|
||||||
|
genius->genius_charh = 0x90; /* Native character height register */
|
||||||
|
return genius;
|
||||||
|
}
|
||||||
|
|
||||||
|
void genius_close(void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
|
||||||
|
free(genius->vram);
|
||||||
|
free(genius);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int genius_available()
|
||||||
|
{
|
||||||
|
return rom_present("roms/8x12.bin");
|
||||||
|
}
|
||||||
|
|
||||||
|
void genius_speed_changed(void *p)
|
||||||
|
{
|
||||||
|
genius_t *genius = (genius_t *)p;
|
||||||
|
|
||||||
|
genius_recalctimings(genius);
|
||||||
|
}
|
||||||
|
|
||||||
|
device_t genius_device =
|
||||||
|
{
|
||||||
|
"Genius VHR",
|
||||||
|
0,
|
||||||
|
genius_init,
|
||||||
|
genius_close,
|
||||||
|
genius_available,
|
||||||
|
genius_speed_changed,
|
||||||
|
NULL,
|
||||||
|
NULL
|
||||||
|
};
|
||||||
1
src/vid_genius.h
Normal file
1
src/vid_genius.h
Normal file
|
|
@ -0,0 +1 @@
|
||||||
|
extern device_t genius_device;
|
||||||
13
src/video.c
13
src/video.c
|
|
@ -20,6 +20,7 @@
|
||||||
#include "vid_ega.h"
|
#include "vid_ega.h"
|
||||||
#include "vid_et4000.h"
|
#include "vid_et4000.h"
|
||||||
#include "vid_et4000w32.h"
|
#include "vid_et4000w32.h"
|
||||||
|
#include "vid_genius.h"
|
||||||
#include "vid_hercules.h"
|
#include "vid_hercules.h"
|
||||||
#include "vid_incolor.h"
|
#include "vid_incolor.h"
|
||||||
#include "vid_colorplus.h"
|
#include "vid_colorplus.h"
|
||||||
|
|
@ -62,6 +63,7 @@ static VIDEO_CARD video_cards[] =
|
||||||
{"Hercules", "hercules", &hercules_device, GFX_HERCULES},
|
{"Hercules", "hercules", &hercules_device, GFX_HERCULES},
|
||||||
{"Hercules InColor", "incolor", &incolor_device, GFX_INCOLOR},
|
{"Hercules InColor", "incolor", &incolor_device, GFX_INCOLOR},
|
||||||
{"MDA", "mda", &mda_device, GFX_MDA},
|
{"MDA", "mda", &mda_device, GFX_MDA},
|
||||||
|
{"MDSI Genius", "genius", &genius_device, GFX_GENIUS},
|
||||||
{"Number Nine 9FX (S3 Trio64)", "n9_9fx", &s3_9fx_device, GFX_N9_9FX},
|
{"Number Nine 9FX (S3 Trio64)", "n9_9fx", &s3_9fx_device, GFX_N9_9FX},
|
||||||
{"OAK OTI-067", "oti067", &oti067_device, GFX_OTI067},
|
{"OAK OTI-067", "oti067", &oti067_device, GFX_OTI067},
|
||||||
{"Paradise Bahamas 64 (S3 Vision864)", "bahamas64", &s3_bahamas64_device, GFX_BAHAMAS64},
|
{"Paradise Bahamas 64 (S3 Vision864)", "bahamas64", &s3_bahamas64_device, GFX_BAHAMAS64},
|
||||||
|
|
@ -310,6 +312,7 @@ BITMAP *buffer, *buffer32;
|
||||||
uint8_t fontdat[256][8];
|
uint8_t fontdat[256][8];
|
||||||
uint8_t fontdatm[256][16];
|
uint8_t fontdatm[256][16];
|
||||||
uint8_t fontdatw[512][32]; /* Wyse700 font */
|
uint8_t fontdatw[512][32]; /* Wyse700 font */
|
||||||
|
uint8_t fontdat8x12[256][16]; /* MDSI Genius font */
|
||||||
|
|
||||||
int xsize=1,ysize=1;
|
int xsize=1,ysize=1;
|
||||||
|
|
||||||
|
|
@ -393,6 +396,16 @@ void loadfont(char *s, int format)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
case 4: /* MDSI Genius */
|
||||||
|
for (c=0;c<256;c++)
|
||||||
|
{
|
||||||
|
for (d=0;d<16;d++)
|
||||||
|
{
|
||||||
|
fontdat8x12[c][d]=getc(f);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
}
|
}
|
||||||
fclose(f);
|
fclose(f);
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue