[Coco] Re: Any reason to put a 6309 in a Coco2?

[jdaggett at gate.net]

Torsten

There is supposed to be the execute and burnup opcode sequence in the 6800 and 
supposedly in the 6809. Not sure of what the sequnce was but it was rumored to do 
a bit of damage to the processor.

james
 

On 2 Jan 2004 at 2:48, Torsten Dittel wrote:

> > Interesting. Microsoft was notorious for doing this with their ROM
> > Basics.
> 
> I think the opcodes in Microsoft BASIC weren't illegal, they just did
> something useless. AFAIR some of the so called "illegal" instructions
> of the 6809 had some effects on the registers including the CC which
> just didn't make sense. I once saw a list somewhere were all the
> "functions" of those opcodes were listed. I wonder if the emulators do
> this well. Tim? Brad?
> 
> Torsten
> 
> 
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