[Coco] (very very slightly OT) 6800 emulator

[coco at yourdvd.net]

I've used 6809 assemblers that automatically convert 6800 assembly
mnemonics into 6809 on the fly. No need to emulate a 6800 on a 6809
when you can recompile the 6800 code into 6809 (or should that be
re-assemble :-) of course, this would probably be a good learning
exercise, so why not? :-) -r

> -------- Original Message --------
> Subject: [Coco] (very very slightly OT) 6800 emulator
> From: David Roper <dave at ebonhost.com>
> Date: Sat, April 28, 2007 11:21 pm
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> 
> Yes, call me masochistic..
> 
> I'm writing a 6800 chip emulator in Visual Basic :)
> 
> So far it initialises the RAM (4k), the registers, inserts some dummy 
> asm code into the RAM and executes the fetch/execute cycle
> 
> Only a few opcodes have been implemented yet, but it's working
> 
> This is an exercise to get familiar with "how it all works" so I can :
> a) try it in VB with the 6809, and
> 
> b) implement it in 6809 assembly to (very slowly) emulate a 6800
> 
> No, I don't know why either
> 
> -- 
> 
> Kind Regards,
> 
> David Roper
> 
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