Add comment about C16 OS bug workaround

2022-08-08 00:37:00 +02:00 · 2022-08-08 00:37:00 +02:00 · 14f3eaf3ad
parent 992fcfe751
commit 14f3eaf3ad
1 changed files with 3 additions and 0 deletions
--- a/6502/C64/src/vf-sys-cbm.fth
+++ b/6502/C64/src/vf-sys-cbm.fth
@ -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