On 03/31/2013 6:36 PM, David Shoemaker wrote:
Working on a Midway grid. Board is reporting bad checksums on some roms. The roms have checksums written on them (factory labels with handwritten info).
Put a rom into my EMP20 (which I have never used for this size rom before) and then had it calc the checksum. Doesn't match the notation on the label.
Loaded a mame rom set into the software and got a different checksum from both my rom and the file.
Doing a file compare against the rom loaded into the buffer and the rom in the socket shows dramatic differences.
I tried this with one of the roms that the board is reporting as good and got the same kind of results.
So now I don't know what to trust.
I wanted to calc the checksums of the mame rom images but can't figure out what tool to use (running windows here).
Any help appreciated.
David
Hi David, ROMSUM (DOS based) or ROMIdent (Windows based) are the answers to your question...ROMSUM gives you a checksum of any file that is run through it, ROMIdent compares the ROM image with it's data file to see what game it belongs to. As I recall it also gives a checksum. Download ROMSUM from: http://www.flippers.com/exe/romsum.zip Or ROMIdent from: http://arcarc.xmission.com/Utils/Rom%20Ident/ John :-#)# _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/