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-rw-r--r--src/interrupts.s5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/interrupts.s b/src/interrupts.s
index 7026223..658f6a3 100644
--- a/src/interrupts.s
+++ b/src/interrupts.s
@@ -161,6 +161,11 @@
sta PPU::m_scroll
sta PPU::m_scroll
+ ;; The sound effect from bullets follow a frame rule. Tick the frame count
+ ;; from sound as the very last thing to be done before unblocking the main
+ ;; code.
+ jsr Sound::tick
+
;; Unblock the main code.
lda #%01111111
and Globals::zp_flags