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Add comment about C16 OS bug workaround

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Philip Zembrod 2022-08-08 00:37:00 +02:00
parent 992fcfe751
commit 14f3eaf3ad
1 changed files with 3 additions and 0 deletions
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6502/C64/src/vf-sys-cbm.fth
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@ -152,6 +152,9 @@ Label nodevice 0 # ldx 1 # ldy
Label (?dev
IOStatus stx \ because IOStatus isn't cleared by LISTEN or TALK
\ It's unclear in which situation or use case the following
\ workaround for a C16 OS error is needed. The v4th tests pass
\ even with the following line removed.
(C16 CurDev sta ( ) \ current device number - because of error in OS
LISTEN jsr
60 # lda SECOND jsr UNLSN jsr