simpsons: correct refresh rate

This commit is contained in:
hap 2020-07-09 22:26:27 +02:00
parent 08c3310b4e
commit 0ebb724471

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@ -341,12 +341,11 @@ void simpsons_state::simpsons(machine_config &config)
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
// Screen timings generated by the 051962, probably not programmable (except maybe between 6 amd 8MHz)
// Screen timings generated by the 051962, probably not programmable (except maybe between 6 and 8MHz)
// 6MHz dot clock
// horizontal: 16 cycles front porch, 32 cycles sync, 16 cycles back porch
// vertical: 16 lines front porch, 8 lines sync, 16 lines back porch
screen.set_raw(XTAL(24'000'000)/4, 384, 0, 320, 256, 0, 224);
screen.set_raw(XTAL(24'000'000)/4, 384, 0, 320, 264, 0, 224);
screen.set_video_attributes(VIDEO_UPDATE_AFTER_VBLANK);
screen.set_screen_update(FUNC(simpsons_state::screen_update_simpsons));
screen.set_palette("palette");