[Coco] NitrOS9 and 6309 code

[Robert Gault]

Gene,

The following should work as I believe the 6809 just ignores "illegal" opcode.

  ldb #123
  clrd
  tstb
  beq 6309 code
6809 code

CLRD looks like a CLRA to a 6809 as it skips over the $10 in $10,$4F.

Robert

Gene Heskett wrote:
><snip>
> I don't recall if there is a bulletproof method to actually do a runtime
> test to see which processor we're running on, one that gives a yes/no
> answer without crashing a 6809.  Has anyone written such a critter yet?
>
><snip>