Re: [stella] button questions

Subject: Re: [stella] button questions
From: KirkIsrael@xxxxxxxxxxxxx
Date: 17 Jul 2002 16:22:39 -0000
> 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.

 "Ahh to be young again. And also a robot."
                --Professor Farnsworth, Futurama

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