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SMS: prepare for don't reset phase flag
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parent
fbb6c4cb4f
commit
e6201b8390
2 changed files with 12 additions and 7 deletions
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@ -73,17 +73,18 @@ void DivPlatformSMS::tick() {
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}
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}
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}
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}
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if (chan[3].freqChanged || updateSNMode) {
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if (chan[3].freqChanged || updateSNMode) {
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updateSNMode=false;
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// seems arbitrary huh?
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// seems arbitrary huh?
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chan[3].freq=parent->calcFreq(chan[3].baseFreq,chan[3].pitch-1-(isRealSN?127:0),true);
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chan[3].freq=parent->calcFreq(chan[3].baseFreq,chan[3].pitch-1-(isRealSN?127:0),true);
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if (chan[3].freq>1023) chan[3].freq=1023;
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if (chan[3].freq>1023) chan[3].freq=1023;
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if (chan[3].actualNote>0x5d) chan[3].freq=0x01;
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if (chan[3].actualNote>0x5d) chan[3].freq=0x01;
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chan[3].freqChanged=false;
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chan[3].freqChanged=false;
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if (snNoiseMode&2) { // take period from channel 3
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if (snNoiseMode&2) { // take period from channel 3
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if (snNoiseMode&1) {
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if (updateSNMode || resetPhase) {
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rWrite(0xe7);
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if (snNoiseMode&1) {
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} else {
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rWrite(0xe7);
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rWrite(0xe3);
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} else {
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rWrite(0xe3);
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}
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}
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}
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rWrite(0xdf);
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rWrite(0xdf);
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rWrite(0xc0|(chan[3].freq&15));
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rWrite(0xc0|(chan[3].freq&15));
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@ -104,6 +105,7 @@ void DivPlatformSMS::tick() {
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rWrite(0xe0|value|((snNoiseMode&1)<<2));
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rWrite(0xe0|value|((snNoiseMode&1)<<2));
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}
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}
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}
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}
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updateSNMode=false;
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}
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}
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}
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}
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@ -224,7 +226,7 @@ void DivPlatformSMS::reset() {
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}
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}
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sn->device_start();
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sn->device_start();
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snNoiseMode=3;
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snNoiseMode=3;
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updateSNMode=false;
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updateSNMode=true;
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}
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}
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bool DivPlatformSMS::keyOffAffectsArp(int ch) {
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bool DivPlatformSMS::keyOffAffectsArp(int ch) {
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@ -261,8 +263,9 @@ void DivPlatformSMS::setFlags(unsigned int flags) {
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} else {
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} else {
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chipClock=COLOR_NTSC;
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chipClock=COLOR_NTSC;
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}
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}
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resetPhase=!(flags&16);
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if (sn!=NULL) delete sn;
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if (sn!=NULL) delete sn;
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switch (flags>>2) {
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switch ((flags>>2)&3) {
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case 1: // TI
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case 1: // TI
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sn=new sn76496_base_device(0x4000, 0x4000, 0x01, 0x02, true, 1, false, true);
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sn=new sn76496_base_device(0x4000, 0x4000, 0x01, 0x02, true, 1, false, true);
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isRealSN=true;
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isRealSN=true;
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@ -287,6 +290,7 @@ int DivPlatformSMS::init(DivEngine* p, int channels, int sugRate, unsigned int f
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parent=p;
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parent=p;
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dumpWrites=false;
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dumpWrites=false;
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skipRegisterWrites=false;
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skipRegisterWrites=false;
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resetPhase=false;
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for (int i=0; i<4; i++) {
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for (int i=0; i<4; i++) {
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isMuted[i]=false;
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isMuted[i]=false;
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}
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}
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@ -32,6 +32,7 @@ class DivPlatformSMS: public DivDispatch {
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bool isMuted[4];
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bool isMuted[4];
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unsigned char snNoiseMode;
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unsigned char snNoiseMode;
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bool updateSNMode;
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bool updateSNMode;
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bool resetPhase;
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bool isRealSN;
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bool isRealSN;
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sn76496_base_device* sn;
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sn76496_base_device* sn;
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friend void putDispatchChan(void*,int,int);
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friend void putDispatchChan(void*,int,int);
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