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echo: cbm
to: All
from: pzembrod@gmail.com
date: 2021-02-12 07:27:00
subject: Why $0401, $0801, $1c01?

Hi all,

I figure that someone here probably knows why CBM's basic RAM always started at $xx01 addresses, like $0801, $0401, $1001, $1c01 instead of $0800, $0400, $1000, $1c00?
What is sitting in that one byte, or what role is it playing?
I realize that I've always taken that for granted, but never asked myself why. Or I knew it at some point in the past and forgot.

Cheers
/Philip

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