[stella] Understanding the PIA

[bob.montgomery at thomson.com]

Hi,


>OK, now I'm just really confused.  There's the documentation that you 
>provided from nocash, and the actual implementation in Stella that say 
>this is how it should work.  However, z26 and MESS don't do it that 
>way, and they produce the results that you guys say is correct.
>
>At this point it's not a matter of fixing a bug in the emulator; I have

>code that does it both ways.  What I need is confirmation of *which* 
>way is correct.

Sounds like someone needs to test on a 2600.  I'll try to make time for
that, but I don't know when I'll get to it.

-Bob