sega/megadriv.cpp, sega/mdconsole.cpp, video/315_5313.cpp: Allow LCM scaling for handle mismatch 32x vs megadriv vdp horizontal screen width case#14884
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…ismatch 32x vs megadriv vdp horizontal screen width case H32 mode in 32x used at nflqb (still not support yet in MAME)
32x screen width is fixed to 320 pixels.
cam900
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angelosa
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Jan 29, 2026
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I don't like this, it looks a timing drift nightmare on something that already has timing issues for a game that doesn't even work because the base driver needs the cart rewrite.
angelosa
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Feb 1, 2026
| screen_device &screen(SCREEN(config, "megadriv", SCREEN_TYPE_RASTER)); | ||
| screen.set_refresh_hz(double(OSC1_CLOCK) / 10.0 / 262.0 / 342.0); // same as SMS? | ||
| // screen.set_refresh_hz(double(OSC1_CLOCK) / 8.0 / 262.0 / 427.0); // or 427 Htotal? | ||
| screen.set_refresh_hz(double(OSC1_CLOCK) / 3420.0 / 262.0); // 3420 clock per scanline |
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3420 x 262 screenshot memes for a game that don't even boot ...
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H32 mode in 32x used at nflqb (still not support yet in MAME)