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cc65/libsrc/plus4/waitvsync.s
2017-07-18 01:04:53 +02:00

18 lines
270 B
ArmAsm

;
; Written by Groepaz <groepaz@gmx.net>
;
; void waitvsync (void);
;
.export _waitvsync
.include "plus4.inc"
_waitvsync:
@l1:
lda TED_VLINEHI
and #$01
ora TED_VLINELO
bne @l1
rts