Re: A92: Memory layout of the 92plus

To: assembly-92@lists.ticalc.org
Subject: Re: A92: Memory layout of the 92plus
From: Arno.Kizina@t-online.de (Arno Kizina)
Date: Sun, 30 Aug 1998 02:13:48 +0200
Delivered-To: assembly-92-outgoing@towerguard.unix.edu.sollentuna.se
References: <m0zCXo3-0004pZC@fwd07.btx.dtag.de> <35E75655.5F436E6F@ucs.orst.edu>
Reply-To: assembly-92@lists.ticalc.org


Anton Ivanov schrieb:
>
>
>
> Arno Kizina wrote:
>
> > Concerning the thread "recovery on crashes" I recently examined the 92plus
> > memory :
> > $000000-$03ffff: RAM
> > $040000-$1fffff: 7 mirrors of $0-$3ffff
> > $200000-$2fffff: OLD TI92 ROM (parts of it seem still to be used)
> > $300000-$3fffff: mirror of $200000-$3fffff
> > $400000-$59ffff: TI92plus ROM
> > $5a0000-$5fffff: Archive Memory
> > $600000-$6?????: Memory mapped I/O
> > above: nothing
> > Archive memory is totally deleted after a crash! Archived variables are
>  stored
> > in backups and recovered to the archive.
> >                 A.K.
>
>  You mean that the plus module has parts of the old ROM on it?  Or are you
>  saying
> that if the calculator has masked ROM then the plus module utilizes it?
>
> --
> Anton Ivanov
> ivanova@ucs.orst.edu
> http://www.geocities.com/CapeCanaveral/Hangar/9136
>
>
I mean that the plus module uses addresses from $400000 to $5fffff, it doesn't 
have parts of the old ROM in it, the old ROM is still there where it always used 
to be.			A.K.
Arno.Kizina@t-online.de

References:

A92: Memory layout of the 92plus

From: Arno.Kizina@t-online.de (Arno Kizina)

Re: A92: Memory layout of the 92plus

From: Anton Ivanov <ivanova@ucs.orst.edu>