[Coco] Mindroll

Bob Devries bdevries at gil.com.au
Mon Oct 17 03:40:08 EDT 2005


Willard, IIRC, the ROM code gets a relocating routine attached to it, and 
it's base address is probably in lower RAM somewhere.
--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Willard Goosey" <goosey at virgo.sdc.org>
To: <coco at maltedmedia.com>
Sent: Monday, October 17, 2005 5:35 PM
Subject: Re: [Coco] Mindroll


> >From: "Neil Morrison" <neilsmorr at hotpop.com>
>>Date: Sun, 16 Oct 2005 18:59:53 -0700
>
>>But AFAIK, you have to run the ROMPAK in all ram mode, so the code runs 
>>from
>>C000 on up.
>
> Then what effect does patching $4xxx have?  (Which is where most, if
> not all, the patches are.)
>
> I'm not trying to be a smarta$$ here... I'm obviously confused about
> *something*...
>
> I mean, presumably, you get the ROM image into low RAM somewhere,
> either using a tape or MPI method, patch it, then save it with an
> offset to put it back at $C000 when it's loaded again.   That's how it
> worked for Thexder and some other ROM paks that I have transfered to
> disk.
>
> But those patches are given as absolute addresses ($4xxx) without
> mentioning where those patches are relative to the beginning of the
> image.
>
> Willard
> -- 
> Willard Goosey  goosey at sdc.org
> Socorro, New Mexico, USA
> "I've never been to Contempt!  Isn't that somewhere in New Mexico?"
>   --- Yacko
>
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> 




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