From: "Spiro Trikaliotis"; on Friday, August 24, 2012; at 7:53 AM -0400 > > a "small" correction: > * On Fri, Aug 24, 2012 at 10:41:25AM +0200 Oliver Schmidt wrote: >> > - The LISTEN and UNLISTEN functions are not present in a CBM KERNAL >> > before C64 (yep, even the VIC20, which is extremely similar to the >> > C64, >> > did not have them). >> > Thus, only the C128 (what about C16, Plus/4?) would be another >> > candidate where that might work. > > My memory was wrong here. LISTEN, UNLISTEN, TALK, and UNTALK actually > *are* present in the VIC20. > Unfortunately, CLOSE does not reset the status. It does not use $F30F to > search the LFN, but $F314, just after clearing $90. :-( I was wrong here, > again. >> >> Okay, so for now, I'll just classify the functionality as C64-only (or, >> C64 and C128 if I find a clean way to do it); and, others more capable >> than I have the option to extend it to other CBM machines -- as >> applicable. Those issues are why CBM-Command does it at a higher level (OPEN, CLOSE, READST). Look at "driveRoutines.s": http://cbmcommand.codeplex.com/SourceControl/changeset/view/76273#841469 ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo@musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.Received on Fri Aug 24 17:43:47 2012
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