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-rw-r--r--explosion.s1
1 files changed, 1 insertions, 0 deletions
diff --git a/explosion.s b/explosion.s
index eebf3ab..a803d5e 100644
--- a/explosion.s
+++ b/explosion.s
@@ -48,6 +48,7 @@ _explosion:
@d:
sta WSYNC
lda RANDOM
+ lsr ; avoid reading I/O registers, I think it can lock up SDX
sta CHBASE
lda VCOUNT
cmp #(4+23)*4