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| r192830 Tuesday 14th March, 2023 at 17:10:24 UTC by utz82 |
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| ddr/kc.cpp: Fixed sound emulation: (#10989) * Split KC 85/2 (HC 900), 85/3, and 85/4 state implementations. * Removed internal speaker from KC 85/2. * Ensure output to internal speaker on KC 85/3..4 is 1-bit. * Added missing Clock signal for CTC on KC 85/4. * Disconnected CTC channel 1 from internal speaker. * Implemented sound flip-flop reset via PIO B bit 0 on KC 85/4. * Implemented DAC sound (85/2..3: 31*2+1 levels, 85/4: 15*2+1 levels). * Disable speaker sound on KC 85/4 when DAC level is 0. |
| [src/mame/ddr] | kc.cpp kc.h kc_m.cpp |
| https://github.com/mamedev/mame/commit/79cd0eedcef5db29b88c763866603a7467f4bce7 |
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