otomatalabs/furnace
8
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix OPL4 mixer volume, mixer effect description (x: Left, y: Right)

Browse source
This commit is contained in:
cam900 2024-07-17 18:26:40 +09:00
parent 4174be22c1
commit 346d34c6e7
3 changed files with 16 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/engine/platform/opl.cpp
View file

@ -2430,12 +2430,16 @@ int DivPlatformOPL::dispatch(DivCommand c) {
break;
case DIV_CMD_MULTIPCM_MIX_FM:
if (chipType==4) {
rWrite(PCM_ADDR_MIX_FM,(CLAMP((0x70-(c.value&0x70)),0,0x70)>>1)|(CLAMP((7-(c.value&7)),0,7)));
fmMixL=CLAMP((c.value&0x70)>>4,0,7);
fmMixR=CLAMP((c.value&0x7),0,7);
immWrite(PCM_ADDR_MIX_FM,((7-fmMixR)<<3)|(7-fmMixL));
}
break;
case DIV_CMD_MULTIPCM_MIX_PCM:
if (chipType==4) {
rWrite(PCM_ADDR_MIX_PCM,(CLAMP((0x70-(c.value&0x70)),0,0x70)>>1)|(CLAMP((7-(c.value&7)),0,7)));
pcmMixL=CLAMP((c.value&0x70)>>4,0,7);
pcmMixR=CLAMP((c.value&0x7),0,7);
immWrite(PCM_ADDR_MIX_PCM,((7-pcmMixR)<<3)|(7-pcmMixL));
}
break;
case DIV_CMD_MULTIPCM_LFO:
@ -2844,6 +2848,13 @@ void DivPlatformOPL::reset() {
immWrite(0x105,3);
// Reset wavetable header
immWrite(0x202,(ramSize<=0x200000)?0x10:0x00);
// initialize mixer volume
fmMixL=7;
fmMixR=7;
pcmMixL=7;
pcmMixR=7;
immWrite(PCM_ADDR_MIX_FM,((7-fmMixR)<<3)|(7-fmMixL));
immWrite(PCM_ADDR_MIX_PCM,((7-pcmMixR)<<3)|(7-pcmMixL));
} else {
immWrite(0x105,1);
}