From 6494a9420c3ab0022858baf449944c755fbdb49f Mon Sep 17 00:00:00 2001
From: Tobias Girstmair <tobi@isticktoit.net>
Date: Thu, 4 Mar 2021 15:59:34 +0100
Subject: [PATCH] new version

---
 bsv.c | 51 +++++++++++++++++++++++++++------------------------
 1 file changed, 27 insertions(+), 24 deletions(-)

diff --git a/bsv.c b/bsv.c
index 585c431..6137c99 100644
--- a/bsv.c
+++ b/bsv.c
@@ -14,35 +14,38 @@ u8 notes[] = {
 };
 
 u8 mod3hi, mod3lo; //MEM
+//todo: can mod3hi be aliased to tmp_1?
 void mod3(void) {
-	MOV(acc,mod3hi)
-	ADD(mod3lo,acc) // mod3lo = hi+lo
-	CLEAR(acc)
-	ADDC0(acc) // mod3hi, 1bit
-	SWAP(acc)
-	MOV(mod3hi, acc)
+	MOV	(acc,mod3hi)
+	ADD	(mod3lo,acc) // mod3lo = hi+lo
+	CLEAR	(acc)
+	ADDC0	(acc) // mod3hi, 1bit
+	SWAP	(acc)
+	MOV	(mod3hi, acc)
 
-	MOV(acc, mod3lo)
-	SWAP(acc)
-	AND(acc, 0xf) // (mod3lo>>4)
-	XCH(mod3lo) // acc=mod3lo, mod3lo=mod3lo>>4
-	AND(acc, 0xF) // acc=mod3lo&0xf, mod3lo=mod3lo>>4
-	ADD(acc, mod3lo) // (mod3lo & 0xF)
-	ADD(acc, mod3hi)
-	MOV(mod3lo, acc)
+	MOV	(acc, mod3lo)
+	SWAP	(acc)
+	AND	(acc, 0xf) // (mod3lo>>4)
+	XCH	(mod3lo) // acc=mod3lo, mod3lo=mod3lo>>4
+	AND	(acc, 0xF) // acc=mod3lo&0xf, mod3lo=mod3lo>>4
+	ADD	(acc, mod3lo) // (mod3lo & 0xF)
+	ADD	(acc, mod3hi)
+	MOV	(mod3lo, acc)
 
-	AND(acc, 0x3) // acc = (mod3lo & 0x3)
-	SR(mod3lo)
-	SR(mod3lo) // (mod3lo >>  2)
-	ADD(acc, mod3lo)
-	MOV(mod3lo, acc)
+	AND	(acc, 0x3) // acc = (mod3lo & 0x3)
+	SR	(mod3lo)
+	SR	(mod3lo) // (mod3lo >>  2)
+	ADD	(acc, mod3lo)
+	MOV	(mod3lo, acc)
 	
-	AND(acc, 0x3) // acc = (mod3lo & 0x3)
-	SR(mod3lo)
-	SR(mod3lo) // (mod3lo >>  2)
-	ADD(acc, mod3lo)
+	AND	(acc, 0x3) // acc = (mod3lo & 0x3)
+	SR	(mod3lo)
+	SR	(mod3lo) // (mod3lo >>  2)
+	ADD	(acc, mod3lo)
 
-	if (acc > 2) acc = acc - 3;
+	if (acc > 2) {
+	SUB	(acc,3)
+	}
 }
 
 void g(void){
-- 
2.39.3