> much unnessesary. As long as you check the joystick
> at least once per frame, it's better to leave bit D6
> of VBLANK zero all the time.
Ok, I think that's the rule of thumb I needed, and that
I can incorporate into 2600 101 (and the nice thing is
that it's kind of the default anyway, if you just slap
a #0 into VBLANK)
> As I've briefly mention in an other message to you,
> only the two top-most bits are defined for the TIA
> read registers like INPT4. The state of the other six
> bits depends on the console you are using.
Ah, sorry for possibly not paying enough attention before.
I think my Java programmer heart is showing, where I assumed
the unused bits would all be zero'd out. That was on StellaX,
and I should be grateful that StellaX didn't have all those bits
set to zero, or else I might have had yet another thing that worked
on an emulator but not on the real thing.
Clearly, BMI is the only remotely sane way to go.
--
KirkIsrael@xxxxxxxxxxxxx http://kisrael.com
"Ahh to be young again. And also a robot."
--Professor Farnsworth, Futurama
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