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

[Neil Morrison]

To clarify, I wasn't referring to illegal opcodes. There might be
code like

JMP 8A07

and they would jump to the 8A which might do, say,

LD H, 07 (almost certainly wrong)

which might do nothing.

Neil

----- Original Message ----- 
From: "Brad Grier" <bradgrier at cox.net>

> > 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.