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tildearrow 2022-09-25 03:50:33 -05:00
parent 3cddca857d
commit 32d8eec522
2 changed files with 25 additions and 10 deletions
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27
src/engine/platform/snes.cpp
View file

@ -93,10 +93,6 @@ void DivPlatformSNES::tick(bool sysTick) {
// so they have to be accumulated
unsigned char kon=0;
unsigned char koff=0;
bool writeControl=false;
bool writeNoise=false;
bool writePitchMod=false;
bool writeEcho=false;
for (int i=0; i<8; i++) {
chan[i].std.next();
if (chan[i].std.vol.had) {
@ -146,23 +142,23 @@ void DivPlatformSNES::tick(bool sysTick) {
}
bool hasInverted=false;
if (chan[i].std.ex1.had) {
if (chan[i].invertL!=(chan[i].std.ex1.val&16)) {
if (chan[i].invertL!=(bool)(chan[i].std.ex1.val&16)) {
chan[i].invertL=chan[i].std.ex1.val&16;
hasInverted=true;
}
if (chan[i].invertR!=(chan[i].std.ex1.val&8)) {
if (chan[i].invertR!=(bool)(chan[i].std.ex1.val&8)) {
chan[i].invertR=chan[i].std.ex1.val&8;
hasInverted=true;
}
if (chan[i].pitchMod!=(chan[i].std.ex1.val&4)) {
if (chan[i].pitchMod!=(bool)(chan[i].std.ex1.val&4)) {
chan[i].pitchMod=chan[i].std.ex1.val&4;
writePitchMod=true;
}
if (chan[i].echo!=(chan[i].std.ex1.val&2)) {
if (chan[i].echo!=(bool)(chan[i].std.ex1.val&2)) {
chan[i].echo=chan[i].std.ex1.val&2;
writeEcho=true;
}
if (chan[i].noise!=(chan[i].std.ex1.val&1)) {
if (chan[i].noise!=(bool)(chan[i].std.ex1.val&1)) {
chan[i].noise=chan[i].std.ex1.val&1;
writeNoise=true;
}
@ -226,6 +222,7 @@ void DivPlatformSNES::tick(bool sysTick) {
if (writeControl) {
unsigned char control=noiseFreq&0x1f;
rWrite(0x6c,control);
writeControl=false;
}
if (writeNoise) {
unsigned char noiseBits=(
@ -239,6 +236,7 @@ void DivPlatformSNES::tick(bool sysTick) {
(chan[7].noise?0x80:0)
);
rWrite(0x3d,noiseBits);
writeNoise=false;
}
if (writePitchMod) {
unsigned char pitchModBits=(
@ -252,6 +250,7 @@ void DivPlatformSNES::tick(bool sysTick) {
(chan[7].pitchMod?0x80:0)
);
rWrite(0x2d,pitchModBits);
writePitchMod=false;
}
if (writeEcho) {
unsigned char echoBits=(
@ -265,6 +264,7 @@ void DivPlatformSNES::tick(bool sysTick) {
(chan[7].echo?0x80:0)
);
rWrite(0x4d,echoBits);
writeEcho=false;
}
if (kon!=0) {
rWrite(0x4c,kon);
@ -457,6 +457,10 @@ void DivPlatformSNES::forceIns() {
}
writeOutVol(i);
}
writeControl=true;
writeNoise=true;
writePitchMod=true;
writeEcho=true;
}
void* DivPlatformSNES::getChanState(int ch) {
@ -489,7 +493,6 @@ void DivPlatformSNES::reset() {
dsp.init(sampleMem);
dsp.set_output(NULL,0);
memset(regPool,0,128);
// TODO more initial values
// this can't be 0 or channel 1 won't play
// this can't be 0x100 either as that's used by SPC700 page 1 and the stack
// this may not even be 0x200 as some space will be taken by the playback routine and variables
@ -506,6 +509,10 @@ void DivPlatformSNES::reset() {
writeOutVol(i);
chWrite(i,4,i); // source number
}
writeControl=false;
writeNoise=false;
writePitchMod=false;
writeEcho=false;
}
bool DivPlatformSNES::isStereo() {

8
src/engine/platform/snes.h
View file

@ -64,6 +64,10 @@ class DivPlatformSNES: public DivDispatch {
useWave(false),
setPos(false),
noise(false),
echo(false),
pitchMod(false),
invertL(false),
invertR(false),
vol(127),
outVol(127),
wtLen(16) {}
@ -74,6 +78,10 @@ class DivPlatformSNES: public DivDispatch {
signed char globalVolL, globalVolR;
unsigned char noiseFreq;
size_t sampleTableBase;
bool writeControl;
bool writeNoise;
bool writePitchMod;
bool writeEcho;
struct QueuedWrite {
unsigned char addr;