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Re: Looking for Videx VideoTerm ROM images
On Jun 8, 10:02 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
>
> If the character generator EPROM is bad, then the patterns displayed
> will be completely consistent--if you repeat a character, you'll see
> lots of copies of *exactly* the same bit pattern--as if you have some
> "alien" font. ;-)
>
> If this is not the case, then I doubt it's the EPROM.
I don't think it's the character generator ROM. I think it's the
program ROM. There has to be some code mapped into ROM space ($C300)
to handle communication with the card when you do a PR#3. In my case,
the 40 column display gets corrupted, and the computer hangs up. No 80
column output at all.
-Ian