Date   : Thu, 14 Feb 2008 09:45:02 +0000 (GMT)
From   : tommowalker@... (Tom Walker)
Subject: Model A (16K) RAM memory map?

> Sprow wrote:
> 
> > Simple:
> >  write 0 to &0000
> >  write 0 to &4000
> >  write 1 to &0000
> >  read from &4000, if it's 1 then there's 16k of RAM
> 
> This this is a known fact, or speculation on your part? i.e. do you know if
> the BBC is (a) mirrored and (b) this is how the MOS ROM actually does it?

Yes that's pretty much how it works.

Tom


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