From 4a224878d8fb1f3dd408864e33edcee7f846449d Mon Sep 17 00:00:00 2001
From: Stefan <stefan.haubenthal@gmail.com>
Date: Mon, 6 Apr 2020 16:20:52 +0200
Subject: [PATCH] Preserve the accu

---
 libsrc/nes/waitvsync.s | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libsrc/nes/waitvsync.s b/libsrc/nes/waitvsync.s
index 4bdf9a9d0..9f811c0a9 100644
--- a/libsrc/nes/waitvsync.s
+++ b/libsrc/nes/waitvsync.s
@@ -11,7 +11,7 @@
 
 .proc   _waitvsync
 
-wait:   lda     PPU_STATUS
+wait:   bit     PPU_STATUS
         bpl     wait
         rts