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Added panning and load LFSR commands.

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This commit is contained in:
Waldemar Pawlaszek 2022-02-21 12:41:06 +01:00
parent 869f799299
commit 6e79e84e53
7 changed files with 55 additions and 16 deletions
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39
src/engine/platform/lynx.cpp
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@ -10,6 +10,7 @@
#define WRITE_BACKUP(ch,v) rWrite(0x24+(ch<<3),(v))
#define WRITE_CONTROL(ch,v) rWrite(0x25+(ch<<3),(v))
#define WRITE_OTHER(ch,v) rWrite(0x27+(ch<<3),(v))
#define WRITE_ATTEN(ch,v) rWrite((0x40+ch),(v))
#define CHIP_DIVIDER 64
@ -68,6 +69,19 @@ const char* regCheatSheetLynx[]={
const char** DivPlatformLynx::getRegisterSheet() {
return regCheatSheetLynx;
}
const char* DivPlatformLynx::getEffectName(unsigned char effect) {
switch (effect)
{
case 0x30: case 0x31: case 0x32: case 0x33:
case 0x34: case 0x35: case 0x36: case 0x37:
case 0x38: case 0x39: case 0x3a: case 0x3b:
case 0x3c: case 0x3d: case 0x3e: case 0x3f:
return "3xxx: Load LFSR (0 to FFF)";
break;
}
return NULL;
}
void DivPlatformLynx::acquire(short* bufL, short* bufR, size_t start, size_t len) {
@ -101,21 +115,20 @@ void DivPlatformLynx::tick() {
}
if (chan[i].freqChanged) {
chan[i].fd=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true);
if (chan[i].resetLFSR) {
chan[i].resetLFSR=false;
WRITE_LFSR(i, 0);
WRITE_OTHER(i, 0);
if (chan[i].lfsr >= 0) {
WRITE_LFSR(i, (chan[i].lfsr&0xff));
WRITE_OTHER(i, ((chan[i].lfsr&0xf00)>>4));
chan[i].lfsr=-1;
}
chan[i].fd=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true);
if (chan[i].std.hadDuty) {
chan[i].duty = chan[i].std.duty;
chan[i].duty=chan[i].std.duty;
WRITE_FEEDBACK(i, chan[i].duty.feedback);
}
WRITE_BACKUP(i, chan[i].fd.backup);
WRITE_CONTROL(i, (chan[i].fd.clockDivider|0x18|chan[i].duty.int_feedback7));
}
else if (chan[i].std.hadDuty)
{
else if (chan[i].std.hadDuty) {
chan[i].duty = chan[i].std.duty;
WRITE_FEEDBACK(i, chan[i].duty.feedback);
WRITE_CONTROL(i, (chan[i].fd.clockDivider|0x18|chan[i].duty.int_feedback7));
@ -129,9 +142,10 @@ int DivPlatformLynx::dispatch(DivCommand c) {
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
chan[c.chan].freqChanged=true;
chan[c.chan].resetLFSR=true;
chan[c.chan].note=c.value;
chan[c.chan].actualNote=c.value;
if (chan[c.chan].lfsr<0)
chan[c.chan].lfsr=0;
}
chan[c.chan].active=true;
WRITE_VOLUME(c.chan,(isMuted[c.chan]?0:(chan[c.chan].vol&127)));
@ -142,6 +156,10 @@ int DivPlatformLynx::dispatch(DivCommand c) {
WRITE_VOLUME(c.chan, 0);
chan[c.chan].std.init(NULL);
break;
case DIV_CMD_LYNX_LFSR_LOAD:
chan[c.chan].freqChanged=true;
chan[c.chan].lfsr=c.value;
break;
case DIV_CMD_NOTE_OFF_ENV:
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
@ -159,6 +177,9 @@ int DivPlatformLynx::dispatch(DivCommand c) {
if (chan[c.chan].active) WRITE_VOLUME(c.chan,(isMuted[c.chan]?0:(chan[c.chan].vol&127)));
}
break;
case DIV_CMD_PANNING:
WRITE_ATTEN(c.chan, c.value);
break;
case DIV_CMD_GET_VOLUME:
if (chan[c.chan].std.hasVol) {
return chan[c.chan].vol;