RE: Atari CAT Box

> ----------
> From: John Robertson[SMTP:jrr@flippers.com]
> Sent: Monday, August 09, 1999 9:26 PM
> Subject: RE: Atari CAT Box
>
> What I think might be more useful would be to build the Polar B2000. This
> device was an automatic analyzer that would figure out what the addresses
> were of I/O, RAM, and ROM based on their read/write characteristics
>
The Fluke 9010A will do that as well-- the "Learn" key. I use it a lot when
doing multigames to "learn" the behaviour of the original game, and then to
verify that the particular multigame daughtercard "looks" the same to the
CPU as the original. (Handy to save it to tape to be able to do a fast A-B
compare with a sick board too...)

If you give the Fluke some "hints" about where ROM memory is it does even
better (otherwise areas of blank ROM can get I.D.'d as non-mapped memory).
I use the learn function to double-check the memory maps in MAME before I go
nuts when things don't work right-- it's very satisfying to page through the
memory space and see that it matches MAME's source-code. ;-)

-Clay
Received on Tue Aug 10 12:08:52 1999