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

6       romcmp - MAME rom and romsets check and comparison tool
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SYNOPSIS

9       romcmp [-option] [dir1|zip1] [dir2|zip2]
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DESCRIPTION

12       romcmp  is  a  tool developed to detect the most common errors that can
13       occur when dumping ROMS, for example stuck bits and  address  line  er‐
14       rors.
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16       It  can  check  the ROMs in ZIP files or subdirectories; it can also be
17       used to compare two ROM sets, by giving it two files or  subdirectories
18       as parameters. It will determine which ROMS are identical and which are
19       the closest matches.  This is useful  when  figuring  out  if  a  newly
20       dumped ROM set is a clone of another ROM set.
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OPTIONS

23       -d     Enables a slower, more comprehensive comparison.
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EXAMPLES

26       romcmp jumpkids.zip will output the following:
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28         11 files
29         23.3c             FIXED BITS (xxxxxx1x)
30         23.3c             FIRST AND SECOND HALF IDENTICAL
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32       This tells us that the 23.3C ROM in Jump Kids is bad, and incidentally,
33       it causes the missing sound in that game.
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SEE ALSO

36       mame(6)
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400.176                             2016-07-21                         ROMCMP(1)