> I'm not sure they really have to be described on a raw IEEE level,
although
> it would be nice from an informational perspective. If they were
> adequately described, I'm not sure software guys would know what to do
with
> the information. In fact, some of the information won't be useful because
> it simply explains how internally the chip works but some of that stuff
> isn't exposed to the software, so it's "hardwired". I think it's more
> useful to describe observed _BEHAVIOR_ of the chips when driven by the
> software. This has already been done through Stellalist to some extent
> with the horizontal positioning system. We've looked a lot at how the TIA
> reacts when these registers are hit at unorthodox times. We also don't
> necessarily need to know how the poly counters are arranged at the logic
> level in the TIA chip as much as we need that sound chart that gives us
the
> note and frequency values of all the possible 2600 sound tones.
>
The sound chart is exactly the kind of stuff I envisioned adding to the
Stella Programmer's Guide.
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