From: Baltissen, GJPAA (Ruud) (ruud.baltissen_at_abp.nl)
Date: 2004-01-05 07:41:01
Hallo Andre,
> The area $E900-$EFFF is being used - I think - by internationalized
> versions of the PET screen editor ROM (some CBM 8xxx).
I checked my 8032-SK yesterday and the monitor shows 'E9 E9 E9...' from
$E900 on. This surely does not look like the code found from $E100 on. So in
this case the area is free. OTOH the schematic on its turn says it is
occupied. But just now I noticed it mentions the use of a 2316 but shows the
use of addressline A11 which is not used on a 2316. Checking my own
re-engineered version I found that there A11 is used to direct the CS signal
that replaces A11 and that the extra circuit that lifts out $E800/E8FF
simply is missing. So it indeed seems there are different boardversions.
I only have one none-US version, a German 8032-SK in my case, and I will
check that one if I can free it.
--
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/ __|__
/ / |_/ Groetjes, Ruud
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\___| URL: Ruud.C64.org
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