void moonsoundWrite(Moonsound* moonsound, UInt16 ioPort, UInt8 value)
{
UInt32 systemTime = boardSystemTime();
if (ioPort < 0xC0) {
switch (ioPort & 0x01) {
case 0: // select register
moonsound->opl4latch = value;
break;
case 1:
mixerSync(moonsound->mixer);
moonsound->ymf278->writeRegOPL4(moonsound->opl4latch, value, systemTime);
break;
}
} else {
switch (ioPort & 0x03) {
case 0:
moonsound->opl3latch = value;
break;
case 2: // select register bank 1
moonsound->opl3latch = value | 0x100;
break;
case 1:
case 3: // write fm register
mixerSync(moonsound->mixer);
moonsound->ymf262->writeReg(moonsound->opl3latch, value, systemTime);
break;
}
}
}
UInt8 moonsoundRead(Moonsound* moonsound, UInt16 ioPort)
{
UInt8 result = 0xff;
UInt32 systemTime = boardSystemTime();
if (ioPort < 0xC0) {
switch (ioPort & 0x01) {
case 1: // read wave register
mixerSync(moonsound->mixer);
result = moonsound->ymf278->readRegOPL4(moonsound->opl4latch, systemTime);
break;
}
} else {
switch (ioPort & 0x03) {
case 0: // read status
case 2:
mixerSync(moonsound->mixer);
result = moonsound->ymf262->readStatus() |
moonsound->ymf278->readStatus(systemTime);
break;
case 1:
case 3: // read fm register
mixerSync(moonsound->mixer);
result = moonsound->ymf262->readReg(moonsound->opl3latch);
break;
}
}
return result;
}
void vlm5030Write(VLM5030* vlm5030, UInt16 ioPort, UInt8 value)
{
switch (ioPort & 1) {
case 0:
mixerSync(vlm5030->mixer);
VLM5030_data_w(0, value);
break;
case 1:
mixerSync(vlm5030->mixer);
VLM5030_RST((value & 0x01) ? 1 : 0 );
VLM5030_VCU((value & 0x04) ? 1 : 0 );
VLM5030_ST( (value & 0x02) ? 1 : 0 );
break;
}
}
void ym2151Write(YM2151* ym2151, UInt16 ioPort, UInt8 value)
{
switch (ioPort & 1) {
case 0:
ym2151->latch = value;
break;
case 1:
mixerSync(ym2151->mixer);
YM2151WriteReg(ym2151->opl, ym2151->latch, value);
break;
}
}
void y8950Write(Y8950* y8950, UInt16 ioPort, UInt8 value)
{
switch (ioPort & 1) {
case 0:
OPLWrite(y8950->opl, 0, value);
break;
case 1:
mixerSync(y8950->mixer);
OPLWrite(y8950->opl, 1, value);
break;
}
}
UInt8 y8950Read(Y8950* y8950, UInt16 ioPort)
{
switch (ioPort & 1) {
case 0:
return (UInt8)OPLRead(y8950->opl, 0);
case 1:
if (y8950->opl->address == 0x14) {
mixerSync(y8950->mixer);
}
return (UInt8)OPLRead(y8950->opl, 1);
break;
}
return 0xff;
}
void stream_update(void* dummy1, int idx)
{
if (theVlm5030 != NULL) {
mixerSync(theVlm5030->mixer);
}
}
