X-Git-Url: https://git.gir.st/Chiptunes.git/blobdiff_plain/238720910767fee2ed2b0433432f660384f74966..e389879f63ee13e638364da4a624a1b3d137f8a5:/foo.c

diff --git a/foo.c b/foo.c
index b7a21e8..6c1e738 100644
--- a/foo.c
+++ b/foo.c
@@ -36,9 +36,26 @@ int main(void) {
 	u8 acc;
 	//TODO: clear all vars/registers
 	for (;;) {
-		acc = 0;
-		n = (i2<<2 | i1>>6);
-		s = (i3<<7 | i2>>1);
+		MOV	(n, i2)
+		LSL	(n)
+		LSL	(n)
+		#define tmp acc
+		MOV	(tmp, i1)
+		SWAP	(tmp)
+		ANDI	(tmp, 0x0f)
+		LSR	(tmp)
+		LSR	(tmp)
+		OR	(n, tmp)
+		#undef tmp
+		MOV	(s, i3)
+		ROR	(s)
+		ROR	(s)
+		ANDI	(s, 0x80)
+		#define tmp acc
+		MOV	(tmp, i2)
+		LSR	(tmp)
+		OR	(s, tmp)
+		#undef tmp
 
 		//voice 1:
 		LDI	(x, 1)
@@ -55,7 +72,9 @@ int main(void) {
 		LSL	(tmp)
 		LSL	(tmp)
 		MOV	(t, i1)
-		t >>= 5;
+		SWAP	(t)
+		ANDI	(t, 0xf)
+		LSR	(t)
 		OR	(t, tmp)
 		#undef tmp
 		EOR	(t, n)