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OPLL: 99.9%

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all features usable, except for custom patchsets (not sure how am i
gonna implement it)
This commit is contained in:
tildearrow 2022-03-01 23:07:29 -05:00
parent 614c1a4da8
commit b90fb02e63
6 changed files with 104 additions and 9 deletions
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34
src/engine/platform/opll.cpp
View file

@ -25,7 +25,7 @@
#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
#define immWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
#define CHIP_FREQBASE 295017
#define CHIP_FREQBASE 1180068
const char* DivPlatformOPLL::getEffectName(unsigned char effect) {
switch (effect) {
@ -693,6 +693,20 @@ void DivPlatformOPLL::reset() {
OPLL_Reset(&fm,opll_type_ds1001);
} else {
OPLL_Reset(&fm,opll_type_ym2413);
switch (patchSet) {
case 0:
fm.patchrom=OPLL_GetPatchROM(opll_type_ym2413);
break;
case 1:
fm.patchrom=OPLL_GetPatchROM(opll_type_ymf281);
break;
case 2:
fm.patchrom=OPLL_GetPatchROM(opll_type_ym2423);
break;
case 3:
fm.patchrom=OPLL_GetPatchROM(opll_type_ds1001);
break;
}
}
if (dumpWrites) {
addWrite(0xffffffff,0);
@ -763,22 +777,24 @@ void DivPlatformOPLL::setYMFM(bool use) {
}
void DivPlatformOPLL::setFlags(unsigned int flags) {
if (flags==3) {
chipClock=COLOR_NTSC;
} else if (flags==2) {
chipClock=8000000.0;
} else if (flags==1) {
chipClock=COLOR_PAL*1.0/5.0;
if ((flags&15)==3) {
chipClock=COLOR_NTSC/2.0;
} else if ((flags&15)==2) {
chipClock=4000000.0;
} else if ((flags&15)==1) {
chipClock=COLOR_PAL*4.0/5.0;
} else {
chipClock=COLOR_NTSC/4.0;
chipClock=COLOR_NTSC;
}
rate=chipClock/9;
rate=chipClock/36;
patchSet=flags>>4;
}
int DivPlatformOPLL::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
patchSet=0;
for (int i=0; i<11; i++) {
isMuted[i]=false;
}

2
src/engine/platform/opll.h
View file

@ -78,6 +78,8 @@ class DivPlatformOPLL: public DivDispatch {
bool drums;
bool properDrums, properDrumsSys;
bool vrc7;
unsigned char patchSet;
short oldWrites[256];
short pendingWrites[256];