Tiny RAM guide

Nightmare Tony

*Account control passed, on to Tony's family.Ex Ro
Joined
Sep 19, 2001
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Was asked on this one, so it goes public and can help in figuring out RAM errors.


The basics are that the read and write and address tell all. The 0000 upwards is the base ram. stack, variables. I think 400000 is where the grasphics ram begins. Also using 43256s. The 8000 ram is the fast sprite ram table using the high speed TMM2018s.

For the read and write, it tells information. The read and write byte are arranged onscreen as: HHLL (D31-D8) (D7-D0) so that tells which RAM byte the issue is happening.
An FF or 00 indicates a bad byte read. A number that is 1 off indicates a single line issue which is why 5s tend to become 7s.
 
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