From: Tobias Girstmair <tobi@isticktoit.net>
Date: Tue, 27 Apr 2021 19:27:26 +0000 (+0200)
Subject: fix notes bank selection
X-Git-Url: https://git.gir.st/Chiptunes-pms150c.git/commitdiff_plain/ebad4b347bbbff503d53b51ea18b59f770e8044a?ds=sidebyside

fix notes bank selection

we want the 2nd "bank" when i2&3 != 0, so when f.z is not set. hence, we
want to skip adding 8 to the index when f.z is set. yep, it's confusing.
---

diff --git a/bsv.asm b/bsv.asm
index 1a60072..b6fed82 100644
--- a/bsv.asm
+++ b/bsv.asm
@@ -115,11 +115,11 @@ mod3:
 g:
 	CLEAR	mul2		; this is notes_ix_hi (and should be 0)
 	AND	a, #0x7
-	MOV	notes_ix, a
+	MOV	notes_ix, a	; assumes notes are the first thing in SRAM
 	; test i2 & 3:
 	MOV	a, i2
 	AND	a, #3
-	T0SN	f, z
+	T1SN	f, z
 	SET1	notes_ix, #3
 	IDXM	a, notes_ix