Re: Battlezone Signature Analysis Procedures

The NOP is the same, the signatures are different.

Kev

----- Original Message -----
From: "tom mcclintock" <tomm@mgcap.com>
To: <vectorlist@synthcom.com>
Sent: Wednesday, July 24, 2002 3:21 PM
Subject: Re: VECTOR: Battlezone Signature Analysis Procedures

> From the SA guides that were up on Spies (SA notes page 47), I was under
> the impression the 6502A and the 8080 would provide the same signatures
> in 'test' mode, and the 6502 would provide different signatures. Part of
> the reason I haven't sat down with Peter's guides yet :)
>
>
> tm
>
> John Robertson wrote:
> >
> > The NOP is the same for 6502 or 6502A...I hardwired a 6502A in the NOP
> > state (and have a simple reset circuit hardwired to it as well) that I
just
> > plug into a CPU socket.
> >
> > John :-#)#
> >
> > At 01:38 PM 24/07/2002 -0500, tom mcclintock wrote:
> >
> > >Peter Fyfe *did* do a signature analysis guide for Battlezone, but I
> > >don't know if he ever finished it. I've got a copy if anyone wants it.
I
> > >am, however, not clear if he made his signatures with a 6502 or 6502A
> > >NOP.
> > >
> > >Peter, you still on here?
> > >
> > >
> > >tm
> > >
> > >Matt Rossiter wrote:
> > > >
> > > > Does anyone have documented procedures for Battlezone using either
the
> > > > Cat Box or the HP 5004a?
> > > > If not, I suppose I could try getting started on one. I really like
> > > > Peter Fyfe's procedures for Asteroids.
> > > > The Battlezone schematics have procedures for the aux board but not
the
> > > > main board.
> > > >
> > > > Matt
> > > >
> > >
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Received on Wed Jul 24 13:42:57 2002