Re: cbm 8032 io area $e800-$e8ff decoding

The CRTC registers are at $E880-E881, and mirrored in the $E88x range.
Steve

      From: Ethan Dicks <ethan.dicks@gmail.com>
 To: cbm-hackers@musoftware.de 
 Sent: Thursday, November 10, 2016 1:53 PM
 Subject: Re: cbm 8032 io area $e800-$e8ff decoding
   
I was curious so I checked...

> I don't see anything at $E800 - $E80F; what uses it, if anything?

I used TIM on my 2001-N/3032 (no CTRC) to look for locations that
aren't returning "real" values, and I see two places that read back
with a value of $E8 ("dead" locations will read back the upper address
byte).

$E800-$E80F
$E880-$E88F

Every other address in the $E800 block read back with some value, with
lots of obvious mirroring.

I didn't have a handy CTRC machine to run the same check.

-ethan

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