RE: [stella] CXM0P value on start up??

Subject: RE: [stella] CXM0P value on start up??
From: "Lee Fastenau" <stella@xxxxxxxxxxxxxxx>
Date: Wed, 13 Jul 2005 02:45:26 -0400
> I read the thread on AA
> ( where Ken let
> us know that Alex Leavens was deceased. Later Bruce posted an interview
> Alex did for a magazine. This got me a little curious in Alex's work.
> I ran Stargunner through Distella and I see Alex uses $00 for the START
> vector and the BRK is set to the actual cart start up. Is this safe? If
> the 2600 starts up in a random state as we believe it does then couldn't
> CXM0P be set on power up?
> Is the dump I have accurate? Does he really jump to $00 on start up
> expecting a BRK to occur? It seems dangerous to jump to $00 expecting it
> to cause a BRK. Then again, I haven't read any reports of it not working
> properly.

If location $00 is non-zero, wouldn't the PC just trundle along executing
random opcodes until it hit a BRK command?


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