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OPZ: SysEx fixes and notes

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tildearrow 2022-09-13 03:29:36 -05:00
parent d19c6fc236
commit 146255b08e
2 changed files with 16 additions and 1 deletions
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4
src/engine/platform/sound/ymfm/ymfm_opz.cpp
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@ -292,6 +292,10 @@ bool opz_registers::write(uint16_t index, uint8_t data, uint32_t &channel, uint3
// note from tildearrow:
// - are you kidding? I have to write to this "load preset" register before keying on?
// another note from tildearrow:
// - see https://github.com/110-kenichi/ymfm/blob/main/src/ymfm_opz.cpp
// - is 0x08 the actual key on register just like OPM?
// - if so then what's bit 5?
if ((index & 0xf8) == 0x20 /*&& bitfield(index, 0, 3) == bitfield(m_regdata[0x08], 0, 3)*/)
{
channel = bitfield(index, 0, 3);