From f2326bfb06284713600f8191632ec01e37ccc26c Mon Sep 17 00:00:00 2001
From: Tobias Girstmair <tobi@isticktoit.net>
Date: Thu, 4 Mar 2021 17:34:37 +0100
Subject: [PATCH] new version

---
 bsv.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/bsv.c b/bsv.c
index a6863d4..a784857 100644
--- a/bsv.c
+++ b/bsv.c
@@ -46,10 +46,18 @@ void mod3(void) {
 }
 
 void g(void){
-	u8 notes_ix = acc & 0x7;
-	if(3&i2)
-		notes_ix += 8;
-	u8 result = ((i1<<8|i0)*notes[notes_ix])>>8;  // keep hi byte
+	// notes_ix_hi = always 0
+	u8 notes_ix;//lo
+	AND	(acc, 0x7)
+	MOV	(notes_ix, acc)
+	// test i2 & 3:
+	MOV	(acc, i2)
+	AND	(acc, 3)
+	if(3&i2) {// T0SN FLAG.Z (0x00.0) -- skip if !(3&i0)
+		notes_ix |= 8; // SET1 MEM.n
+	}
+	acc = notes[notes_ix]; // IDXM acc, notes_ix
+	u8 result = ((i1<<8|i0)*acc)>>8;  // keep hi byte
 	acc = result;
 }
 void main(void){
-- 
2.39.3