ROMCMP(1)                  MAME romset checking tool                 ROMCMP(1)

NAME
       romcmp - MAME rom and romsets check and comparison tool

SYNOPSIS
       romcmp [-option] [dir1|zip1] [dir2|zip2]

DESCRIPTION
       romcmp is a tool developed to detect the most common errors that can
       occur when dumping ROMS, for example stuck bits and address line
       errors.

       It can check the ROMs in ZIP files or subdirectories; it can also be
       used to compare two ROM sets, by giving it two files or subdirectories
       as parameters. It will determine which ROMS are identical and which are
       the closest matches.  This is useful when figuring out if a newly
       dumped ROM set is a clone of another ROM set.

OPTIONS
       -d     Enables a slower, more comprehensive comparison.

       -h     Prints hashes (CRC-32, SHA-1) and 16-bit sums for all files.

EXAMPLES
       romcmp jumpkids.zip will output the following:

         11 files
         23.3c             FIXED BITS (xxxxxx1x)
         23.3c             FIRST AND SECOND HALF IDENTICAL

       This tells us that the 23.3C ROM in Jump Kids is bad, and incidentally,
       it causes the missing sound in that game.

SEE ALSO
       mame(6)

0.176                             2016-07-21                         ROMCMP(1)