Re: 80 Columns under cc65?

[scott@alfter.DIESPAMMERSDIE.us (Scott Alfter)]

In article <BKtdk.10220$LG4.7033@nlpi065.nbdc.sbc.com>,
Dave Althoff, Jr. <dalloff.gcfn.org@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.

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