> Done that, its in the VSM, but why does the self test work, and not
>the game, and why does the manual loading of code in the vector memory to
>draw a plus on the screen work as well, but not the game. Basically, the
>fluke has eliminated, RAM ROM and MPU, I'm confused as to why the VSM would
>work on the internal board test pattern and the + Code (the code from the
>atari Cat box test procedure can be loaded thru the fluke to be executed by
>the VSM, at that point the drawing of the + on the screen is not CPU
>controlled but totally VSM ), but not work in game play ?
Just a thought (I haven't read the whole thread), but just because the Fluke
can get to the VROM area doesn't necessarily mean that the VSM can. (The
CPU can see the VROM area in memory space on Asteroids, but the VSM accesses
it through a second path, maybe something's wrong there?)
Still though, I think the VRAM area is on the same bus as the VROM from the
VSM's standpoint, so that would be a little strange if one would work and
the other not.
You *could* have a problem with the VSM stack-- that would still pass with
the short-little "+" test, but crap out when the game runs...
-Clay
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Received on Tue Oct 31 18:18:10 2000
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