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c64: updated music player, sid macros

This commit is contained in:
Steven Hugg 2023-11-03 14:54:27 -05:00
parent 2de919a225
commit 99f7ff41bb
3 changed files with 184 additions and 28 deletions
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198
presets/c64/musicplayer.c
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File diff suppressed because one or more lines are too long

12
presets/c64/sidmacros.h
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@ -18,12 +18,12 @@
SID.amp = (volume) | ((filters)<<4);
// stop voice
#define SID_STOP(voice) \
SID.voice.ctrl &= ~SID_GATE;
#define SID_STOP(voice, options) \
SID.voice.ctrl = options & ~SID_GATE;
// start voice
#define SID_START(voice) \
SID.voice.ctrl |= SID_GATE;
#define SID_START(voice, options) \
SID.voice.ctrl = options | SID_GATE;
// set ADSR envelope
#define SID_ADSR(voice,attack,decay,sustain,release) \
@ -38,10 +38,6 @@
#define SID_PULSEWIDTH(voice,_pw) \
SID.voice.pw = (_pw);
// set wave shape and options
#define SID_WAVE(voice,options) \
SID.voice.ctrl = (SID.voice.ctrl & 1) | (options)
// play a quick square wave pulse
#define SID_PULSE_DECAY(voice, freq) \
SID_STOP(voice) \

2
src/machine/c64.ts
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@ -29,7 +29,7 @@ export class C64_WASMMachine extends BaseWASMMachine
loadBIOS(srcArray: Uint8Array) {
var patch1ofs = 0xea24 - 0xe000 + 0x3000;
/*if (srcArray[patch1ofs] == 0x02)*/ srcArray[patch1ofs] = 0x60; // cursor move, KIL -> RTS
if (srcArray[patch1ofs] == 0xc4) srcArray[patch1ofs] = 0x60; // cursor move, KIL -> RTS
super.loadBIOS(srcArray);
}
reset() {