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change AY frequency

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tildearrow 2022-01-14 00:26:10 -05:00
parent dce06d8ec4
commit 6d2aa8d23e
4 changed files with 22 additions and 39 deletions
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43
src/engine/platform/ay.cpp
View file

@ -7,7 +7,7 @@
#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
#define immWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v);}
#define PSG_FREQ_BASE 7640.0f
#define PSG_FREQ_BASE 6848.0f
void DivPlatformAY8910::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (ayBufLen<len) {
@ -28,33 +28,6 @@ void DivPlatformAY8910::acquire(short* bufL, short* bufR, size_t start, size_t l
bufL[i+start]=ayBuf[0][i]+ayBuf[1][i]+ayBuf[2][i];
bufR[i+start]=ayBuf[0][i]+ayBuf[1][i]+ayBuf[2][i];
}
//static int os[2];
/*for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
if (!writes.empty()) {
if (--delay<1) {
QueuedWrite& w=writes.front();
fm->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
writes.pop();
delay=4;
}
}
fm->generate(&fmout);
os[0]=fmout.data[0]+(fmout.data[2]>>1);
if (os[0]<-32768) os[0]=-32768;
if (os[0]>32767) os[0]=32767;
os[1]=fmout.data[1]+(fmout.data[2]>>1);
if (os[1]<-32768) os[1]=-32768;
if (os[1]>32767) os[1]=32767;
bufL[h]=os[0];
bufR[h]=os[1];
}*/
}
void DivPlatformAY8910::tick() {
@ -337,17 +310,21 @@ void DivPlatformAY8910::notifyInsDeletion(void* ins) {
}
}
void DivPlatformAY8910::setPAL(bool pal) {
if (pal) {
rate=221681;
} else {
rate=223722;
}
}
int DivPlatformAY8910::init(DivEngine* p, int channels, int sugRate, bool pal) {
parent=p;
skipRegisterWrites=false;
for (int i=0; i<3; i++) {
isMuted[i]=false;
}
if (pal) {
rate=250000;
} else {
rate=250000;
}
setPAL(pal);
ay=new ay8910_device(rate);
ay->set_psg_type(ay8910_device::PSG_TYPE_AY);
ay->device_start();

1
src/engine/platform/ay.h
View file

@ -57,6 +57,7 @@ class DivPlatformAY8910: public DivDispatch {
void forceIns();
void tick();
void muteChannel(int ch, bool mute);
void setPAL(bool pal);
bool isStereo();
bool keyOffAffectsArp(int ch);
void notifyInsDeletion(void* ins);

16
src/engine/platform/ay8930.cpp
View file

@ -7,7 +7,7 @@
#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
#define immWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v);}
#define PSG_FREQ_BASE 7640.0f
#define PSG_FREQ_BASE 6848.0f
void DivPlatformAY8930::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (ayBufLen<len) {
@ -347,17 +347,21 @@ void DivPlatformAY8930::notifyInsDeletion(void* ins) {
}
}
void DivPlatformAY8930::setPAL(bool pal) {
if (pal) {
rate=221681;
} else {
rate=223722;
}
}
int DivPlatformAY8930::init(DivEngine* p, int channels, int sugRate, bool pal) {
parent=p;
skipRegisterWrites=false;
for (int i=0; i<3; i++) {
isMuted[i]=false;
}
if (pal) {
rate=250000;
} else {
rate=250000;
}
setPAL(pal);
ay=new ay8930_device(rate);
ay->device_start();
ayBufLen=65536;

1
src/engine/platform/ay8930.h
View file

@ -58,6 +58,7 @@ class DivPlatformAY8930: public DivDispatch {
void forceIns();
void tick();
void muteChannel(int ch, bool mute);
void setPAL(bool pal);
bool isStereo();
bool keyOffAffectsArp(int ch);
void notifyInsDeletion(void* ins);