X-Git-Url: https://git.gir.st/Chiptunes.git/blobdiff_plain/965274e21f31a95689f0e1d46cbba876c158adbb..5d4207f9a0b24eec52054fa1674cded926f06a72:/foo.c?ds=inline

diff --git a/foo.c b/foo.c
index e70f5cf..4caddea 100644
--- a/foo.c
+++ b/foo.c
@@ -31,13 +31,21 @@ void g(void) {
 };
 
 int main(void) {
-	unsigned short n;
-	unsigned short s;
+	u8 n;
+	u8 s;
 	u8 acc;
 	//TODO: clear all vars/registers
 	for (;;) {
-		acc = 0;
-		n = (i2<<2 | i1>>6);
+		MOV	(n, i2)
+		LSL	(n)
+		LSL	(n)
+		#define tmp acc
+		MOV	(tmp, i1)
+		SWAP	(tmp)
+		ANDI	(tmp, 0x0f)
+		tmp >>= 2;
+		OR	(n, tmp)
+		#undef tmp
 		s = (i3<<7 | i2>>1);
 
 		//voice 1:
@@ -49,7 +57,18 @@ int main(void) {
 
 		//voice 2:
 		MOV	(x, s)
-		t = n ^ (i2<<3 | i1>>5);
+		#define tmp o
+		MOV	(tmp, i2)
+		LSL	(tmp)
+		LSL	(tmp)
+		LSL	(tmp)
+		MOV	(t, i1)
+		SWAP	(t)
+		ANDI	(t, 0xf)
+		LSR	(t)
+		OR	(t, tmp)
+		#undef tmp
+		EOR	(t, n)
 		LDI	(o, 10)
 		RCALL	g();
 		ADD	(acc, t)
@@ -75,5 +94,6 @@ int main(void) {
 		ADC	(i1, tmp, !i0)
 		ADC	(i2, tmp, !i0&&!i1)
 		ADC	(i3, tmp, !i0&&!i1&&!i2)
+		#undef tmp
 	}
 }