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31 lines
448 B
ArmAsm
31 lines
448 B
ArmAsm
;
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; Written by Groepaz <groepaz@gmx.net>
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;
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; void waitvsync (void);
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;
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.export _waitvsync
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.include "c128.inc"
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_waitvsync:
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bit MODE
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bmi @c80
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@l1:
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bit VIC_CTRL1
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bpl @l1
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@l2:
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bit VIC_CTRL1
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bmi @l2
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rts
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@c80:
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;FIXME: do we have to switch banks?
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lda #$20
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@l3:
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and VDC_INDEX
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beq @l3
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rts
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