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Initial Atari Lynx Support

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This commit is contained in:
Waldemar Pawlaszek 2022-02-20 18:15:15 +01:00
parent 47d7e68958
commit 2e4c7ec60a
14 changed files with 1038 additions and 25 deletions
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27
src/engine/vgmOps.cpp
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@ -260,6 +260,14 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(0);
}
break;
case DIV_SYSTEM_LYNX:
w->writeC(0x4e);
w->writeC(0x40);
w->writeC(0xff); //panning
w->writeC(0x4e);
w->writeC(0x50);
w->writeC(0x00); //stereo
break;
default:
break;
}
@ -377,6 +385,11 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC((isSecond?0x80:0)|(write.addr&0xff));
w->writeC(write.val);
break;
case DIV_SYSTEM_LYNX:
w->writeC(0x4e);
w->writeC(write.addr&0xff);
w->writeC(write.val&0xff);
break;
default:
logW("write not handled!\n");
break;
@ -456,6 +469,7 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
int hasX1=0;
int hasC352=0;
int hasGA20=0;
int hasLynx=0;
int howManyChips=0;
@ -666,6 +680,16 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
hasOPM|=0x40000000;
howManyChips++;
}
case DIV_SYSTEM_LYNX:
if (!hasLynx) {
hasLynx=disCont[i].dispatch->chipClock;
willExport[i] = true;
} else if (!(hasLynx&0x40000000)) {
isSecond[i]=true;
willExport[i]=true;
hasLynx|=0x40000000;
howManyChips++;
}
break;
default:
break;
@ -752,7 +776,8 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
w->writeI(hasX1);
w->writeI(hasC352);
w->writeI(hasGA20);
for (int i=0; i<7; i++) { // reserved
w->writeI(hasLynx);
for (int i=0; i<6; i++) { // reserved
w->writeI(0);
}