At Mon Jun 15 14:10:57 1998, Tennessee Carmel-Veilleux wrote:
>Last night, I made my first attempt at modifying a playfield
>graphics program for the 2600. I added a cascading sound and changed the
>input parameters to display more than just plain blue when the joystick
>is moved. The source was Erik Mooney's playfield graphics demo, and I
>had quite a few problems writing it... You will see in the source that
>when I tried to make the sound routine change the sound every scanline,
>during scanline scanning, the machine (in my case PCAE
>on a P233) became excessively slow. My best guess is that the routines
>takes too many clocks, but I don't think it exceeds the 76 I can use per
>scanline. How odd. (...)
Hmm, another technical problem, just like my one with the ship shadow...
Has anyone tried any other emulator with the non-
commented code?
>I would like to hear comments on the small code I added, even thought it
>might be crappy...
Well I think it's not too crappy. There's no description on the things
displayed, but then again, they are nothing really concrete, they look
more like modern art... ;-)
No, obviously you moved the sound routine to the frame start when you
realized it was running slow, but your comments don't entirely reflect
that. But I know how that is - first write some code, commenting it
heavily. Then we test the code, and in the end, the comments haven't
change with the improvements done while testing. I think my code is a
bit crappy too...
Other than that, keep on programming! Maybe someday we'll see something
more concrete, rather than some raster.
But I have to stop bragging, since I don't want to stop you from coding,
as I'm afraid I did with Andrew Davie before... I'm sorry for my
comments to his 4-colour playfield demo now, since he gave up on it.
At least, your demo has got sound. I still have to add this to my one...
With love (and something to improve on my own demo)
Kurt Woloch
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