[Coco] Test

[jdaggett at gate.net]

You can create whatis called a System on a CHip or SOC. By doing that you can 
memory map the MMU inside the processor. 

Another method is to extend the address buss internal and increase the PC. 
Stacking the extra high nibble or byte will need to be done and any assembler 
software needs to be rewritten. 

james


On 6 Jan 2004 at 12:31, peak at mail.polarcomm.com wrote:

Date sent:      	Tue, 6 Jan 2004 12:31:26 -0600
From:           	peak at mail.polarcomm.com
Subject:        	Re: [Coco] Test
To:             	CoCoList for Color Computer Enthusiasts 
<coco at maltedmedia.com>
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> Yep
> The mc86008 is NOT compatible with mc6809 and so calling a 
> Pseudo CPU by the name MC68009 may not be a good idea.
> I really would like to see a 6809 compatible CPU with more 
> address lines though, wouldn't you?
> 
> 
> ---- Original message ----
> >Date: Mon, 5 Jan 2004 17:06:02 -1000
> >From: Theodore (Alex) Evans <alxevans at concentric.net>  
> >Subject: Re: [Coco] Test  
> >To: CoCoList for Color Computer Enthusiasts 
> <coco at maltedmedia.com>
> >
> >
> >On Jan 5, 2004, at 11:29 AM, peak at mail.polarcomm.com wrote:
> >
> >> Bill
> >> A coco4 Emulator??
> >> How about a CPU which doesn't exist. Call it a MC68009?
> >> 32-bit registers and 20 or so address lines?
> >> Waaaay Cool!!
> >
> >Except that it is not MC6809 compatible, sound a lot like an 
> MC68008.
> >
> >
> >-- 
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> >Coco at maltedmedia.com
> >http://five.pairlist.net/mailman/listinfo/coco
> 
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