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

[Neil Morrison]

No. in fact they often jumped into the middle of an opcode to save a
byte. Everyone had to learn that if they used the rom code.

Neil

----- Original Message ----- 
From: "Torsten Dittel" <Torsten at Dittel.info>

> 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?