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added turnaround to talker to IEC support

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FeralChild64 committed 2019-07-15 20:14:52 +02:00
1 parent ef10c90ee6
commit b1e882b021
3 files changed
+27 -16
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c64/kernal/iec_wait_for_data_pull.s
+7
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@@ -0,0 +1,7 @@
iec_wait_for_data_pull:
lda CI2PRA
;; Check the highest bit, which is DATA IN,
;; (highest bit set = negative value)
bmi iec_wait_for_data_pull
rts