Ensure long irs sequencer_tick can be interrupted

1 files changed, 4 insertions, 0 deletions

diff --git a/src/gba/interrupts.s b/src/gba/interrupts.s
index 67b9fe9..1d3e001 100644
--- a/src/gba/interrupts.s
+++ b/src/gba/interrupts.s
@@ -67,6 +67,10 @@ irs_main_handle_irs:
     bx      r2
     ldmfd   sp!, {lr}
 
+    @ Clear IRQ enable again just in case it was enabled from within the IRS.
+    mov r3, #0                      @ r3 = 0
+    strh r3, [ip, #8]               @ *(ip + 0x8) = r3
+
     @ Set CPU to irq mode
     mrs     r3, cpsr
     bic     r3, r3, #0xDF