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Prepare to YMF289B OPL3-L support

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This commit is contained in:
cam900 2023-01-05 08:40:44 +09:00
parent 560ec19176
commit e5d81bd694
3 changed files with 43 additions and 2 deletions
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20
src/engine/platform/opl.cpp
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@ -1722,13 +1722,29 @@ void DivPlatformOPL::setFlags(const DivConfig& flags) {
case 0x04:
chipClock=15000000.0;
break;
case 0x05:
chipClock=33868800.0;
break;
default:
chipClock=COLOR_NTSC*4.0;
break;
}
CHECK_CUSTOM_CLOCK;
rate=chipClock/288;
chipRateBase=rate;
switch (flags.getInt("chipType",0)) {
case 1: // YMF289B
chipFreqBase=32768*684;
rate=chipClock/684;
chipRateBase=chipClock/768;
downsample=true;
break;
default: // YMF262
chipFreqBase=32768*288;
rate=chipClock/288;
chipRateBase=rate;
downsample=false;
break;
}
reset();
break;
case 4:
switch (flags.getInt("clockSel",0)) {