fix apu, fogleman/nes#52 https://www.nesdev.org/wiki/APU_Pulse

jianjunjiang · jianjunjiang · commit f3b2d3f9f41f · 2023-07-23T19:05:20.000+08:00
diff --git a/src/apu.c b/src/apu.c
@@ -334,7 +334,7 @@ static void pulse_writeControl(Pulse *p, uint8_t value)
     p->envelopeEnabled = ((value>>4)&1) == 0;
     p->envelopePeriod = value & 15;
     p->constantVolume = value & 15;
-    p->envelopeStart = 1;
+    //TODO p->envelopeStart = 1;
 }
 
 static void pulse_writeSweep(Pulse *p, uint8_t value)
@@ -738,7 +738,7 @@ static void apu_init(struct xnes_apu_t *apu)
 
 void xnes_apu_init(struct xnes_apu_t * apu, struct xnes_ctx_t * ctx)
 {
-	//memset(apu, 0, sizeof(struct xnes_apu_t));
+	memset(apu, 0, sizeof(struct xnes_apu_t));
 	apu->ctx = ctx;
 	apu_init(apu);
 }

Original file line number	Diff line number	Diff line change
`@@ -334,7 +334,7 @@ static void pulse_writeControl(Pulse *p, uint8_t value)`
`334`	`334`	`p->envelopeEnabled = ((value>>4)&1) == 0;`
`335`	`335`	`p->envelopePeriod = value & 15;`
`336`	`336`	`p->constantVolume = value & 15;`
`337`		`- p->envelopeStart = 1;`
	`337`	`+ //TODO p->envelopeStart = 1;`
`338`	`338`	`}`
`339`	`339`
`340`	`340`	`static void pulse_writeSweep(Pulse *p, uint8_t value)`
`@@ -738,7 +738,7 @@ static void apu_init(struct xnes_apu_t *apu)`
`738`	`738`
`739`	`739`	`void xnes_apu_init(struct xnes_apu_t * apu, struct xnes_ctx_t * ctx)`
`740`	`740`	`{`
`741`		`- //memset(apu, 0, sizeof(struct xnes_apu_t));`
	`741`	`+ memset(apu, 0, sizeof(struct xnes_apu_t));`
`742`	`742`	`apu->ctx = ctx;`
`743`	`743`	`apu_init(apu);`
`744`	`744`	`}`