cc65/libsrc/c128/waitvblank.s
2017-06-17 02:26:54 +02:00

13 lines
201 B
ArmAsm

.export _waitvblank
.include "c128.inc"
_waitvblank:
@l1:
lda VIC_CTRL1
bpl @l1
@l2:
lda VIC_CTRL1
bmi @l2
rts