[Coco] Instruction trapping on xroar?

[Ciaran Anscomb]

Joel Rees wrote:
> 
> [...]
> in other words, deliberately misaligned auto mode indexed instructions.
> [...]
> So, I am wondering if anyone knows whether Xroar does anything special with
> those, or simply lets the index mode be interpreted independently of the
> instruction, as the real 6809 did.

Nothing special - indexed addressing (and all the others) is calculated
independently of the instruction.

Hope you can track down where things differ, always want to improve
accuracy...

..ciaran