I wrote the brute-force CRC polynomial finder program. It takes six minutes to try all
CRC polynomials of order three through sixteen over two buffers of 1024 ROM words, on my Athlon XP 1900+ system.

Bill asked me about the self-test feature of the Spice series calculators (HP-3xE/C, such as HP-33C). I used the self-test to dump the ROMs by passively monitoring the bus. The processor has a single instruction to compute some kind of check over 1K*10 of ROM, but it seems to only produce a pass/fail [...]