Re: VSM troubleshooting, Asteroids

So the 9010A didn't catch the Vector Ram failure?

Curiosity forced me to pull the schematics, the RAM failure should be caught
by the 9010A, unless you have a problem with one of the 273 latches
(right?).

The 3 signals that didn't work properly for me using the Flukescript were

!OPTS
!SINP0
!SINP1

Kev

> It puts a medium sized PLUS on the screen. I jumper the watchdog
> and let if fly. I was going to put scope patterns in a doc for
> the various test points during the draw but never got around to
> it. What I'd like to do is increase the scaling, and have the vsm
> code put in three different places in the vsm ram. I've run into
> a few cases that it ran fine, but only because it was located low
> in the vsm ram (its such a small pgm it does not fully test the
> vsm address space). The game would die, but the vsm was fine.
> Turns out that one of the high order bits (I forget the chip) was
> out in the vsm ram. So to make this run in low vsm and then again
> in high vsm memory space would be nice. Did anyone ever document
> the vsm command structure ? That would be helpfull, this PLUS is
> from the atari catbox documentation and I just adapted the tests
> to the 9010. On of these day's I'll make it pretty..
>
> TomW

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Received on Tue Feb 12 13:11:59 2002