Re: 80 Columns under cc65?

[hunt_stock@yahoo.com]

On Jul 13, 3:51 am, sc...@alfter.DIESPAMMERSDIE.us (Scott Alfter)
wrote:
> In article <BKtdk.10220$LG4.7...@nlpi065.nbdc.sbc.com>,
> Dave Althoff, Jr. <dalloff.gcfn....@sbcglobal.net> wrote:
>
> >I'm going way WAY back here...back before the //c, the earliest version
> >of the 80-column firmware had some strange bugs in it, particularly with
> >regard to horizontal position.  Most of the unexpected behaviors were
> >cleaned up with the //c ROM, the replacement video ROM in the 'enhanced'
> >][e, and with the IIgs.  So the problems only appear in the earliest of
> >][e's, and I think ProDOS actually replaces the 80-column firmware with
> >its own display driver, so under ProDOS it might not even matter.  8-)
>
> If this had been the case, it probably wouldn't have been necessary to
> upgrade the IIe to enhanced firmware to get most comm software running
> right.  The biggest problem was that interrupts were disabled for an
> unnecessarily long time.  Even at 2400 bps, you'd probably start dropping
> incoming characters if the screen started scrolling.  I only ever used
> ProDOS-based comm software, and I had scrolling problems until I obtained
> enhanced ROMs and a 65C02 for my IIe.  If ProDOS had somehow patched the
> buggy firmware out, this wouldn't have been necessary.
>
>   _/_
>  / v \ Scott Alfter (remove the obvious to send mail)
> (IIGS(http://alfter.us/           Top-posting!
>  \_^_/ rm -rf /bin/laden            >What's the most annoying thing on Usenet?



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