Data for Programmable Logic Devices (PLDs) are usually stored in a format known
as JEDEC, basically a text file allowing insertion of further information by
programmers.
MAME uses a raw binary representation of the same data, in order to
achieve correct identification of PLD data through CRC and SHA1 algorithms
(i.e. with the -romident option).
jedutil
provides an easy way to convert PLDs data between these two formats.