From: Keates, Mark (Mark.Keates_at_dendrite.com)
Date: 2003-03-14 15:57:33
Hi,
How about implementing it as a cartridge image, e.g. XEGS format?
This gives $A000->$BFFF as a fixed bank (last 8K from ROM, 'n')
and $8000->$9FFF as any bank from the ROM ('0' -> 'n').
Therefore any other space below the ROM (<$8000)
and above DOS (say >$2000) is spare RAM. The screen memory
would have to go there too though.
The problem as I see it would be that the sources would
have to include the bank switching calls as the linker
wouldn't do this, and this affects the open-ness of the project.
Regards,
Mark
P.S. Uz, have you been affected by:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=FRNT39296EA
E04%40frontier.co.uk
-----Original Message-----
From: Christian Groessler [mailto:chris_at_groessler.org]
Sent: 14 March 2003 14:23
To: cc65_at_musoftware.de
Subject: Re: [cc65] The Contiki Desktop OS for cc65
Hi,
On Fri, 14 Mar 2003, Ullrich von Bassewitz wrote:
> On Fri, Mar 14, 2003 at 03:02:44PM +0100, Christian Groessler wrote:
> > The memory is so tight with only the web browser, the other things are
> > already disabled... :-(
>
> I don't know much about the Atari and its memory layout, but maybe there's
a
> way to do some sort of banking?
Yes, but it's not useful in this case. The 130xe has multiple 16k banks
which can be mapped at $4000-$7FFF.
regards,
chris
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