From 63b251cb7d04bddf660dbedd9332abadbb65e348 Mon Sep 17 00:00:00 2001
From: Vince Weaver <vincent.weaver@maine.edu>
Date: Mon, 29 Oct 2018 12:04:19 -0400
Subject: [PATCH] mockingboard: trying to get IRQ handler working on II+/IIe

---
 megademo/mockingboard.s | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/megademo/mockingboard.s b/megademo/mockingboard.s
index cd89d9d3..bb47812c 100644
--- a/megademo/mockingboard.s
+++ b/megademo/mockingboard.s
@@ -148,12 +148,14 @@ reset_ay_right:
 
 interrupt_handler:
 	; A saved by firmware in $45
-	sta	$45
+;	sta	$45
 	txa
 	pha			; save X
 	tya
 	pha			; save Y
 
+	bit     $C404           ; clear 6522 interrupt by reading T1C-L ; 4
+
 	jsr	play_music
 
 	pla
@@ -162,8 +164,6 @@ interrupt_handler:
 	tax			; restore X
 	lda	$45		; restore A
 
-	bit     $C404           ; clear 6522 interrupt by reading T1C-L ; 4
-
 	rti			; return from interrupt                 ; 6