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cc65/libsrc/pet/waitvsync.s
2020-11-18 10:28:19 +01:00

17 lines
251 B
ArmAsm

;
; Written by Robin Harbron, requires 12" monitor
;
; void waitvsync (void);
;
.export _waitvsync
.include "pet.inc"
_waitvsync:
@l1:
lda VIA_PB
and #%00100000
bne @l1
rts