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YM2608-LLE, part 10

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tildearrow 2024-04-27 19:15:01 -05:00
parent 6129d2714a
commit ea9c483510
1 changed files with 11 additions and 0 deletions
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11
src/engine/platform/ym2608.cpp
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@ -490,11 +490,14 @@ void DivPlatformYM2608::acquire_ymfm(short** buf, size_t len) {
} }
} }
// ac_fm_output
void DivPlatformYM2608::acquire_lle(short** buf, size_t len) { void DivPlatformYM2608::acquire_lle(short** buf, size_t len) {
for (size_t h=0; h<len; h++) { for (size_t h=0; h<len; h++) {
bool have0=false; bool have0=false;
bool have1=false; bool have1=false;
unsigned char howLong=0; unsigned char howLong=0;
unsigned char subCycle=0x100-12;
unsigned char subSubCycle=0;
while (true) { while (true) {
bool canWeWrite=fm_lle.prescaler_latch[1]&1; bool canWeWrite=fm_lle.prescaler_latch[1]&1;
@ -558,6 +561,14 @@ void DivPlatformYM2608::acquire_lle(short** buf, size_t len) {
FMOPNA_Clock(&fm_lle,0); FMOPNA_Clock(&fm_lle,0);
FMOPNA_Clock(&fm_lle,1); FMOPNA_Clock(&fm_lle,1);
if (++subSubCycle>=6) {
subSubCycle=0;
if (subCycle<12) {
oscBuf[subCycle]->data[oscBuf[subCycle]->needle++]=fm_lle.ac_fm_output;
}
subCycle++;
}
if (canWeWrite) { if (canWeWrite) {
if (delay==1) { if (delay==1) {
// check busy status here // check busy status here