as a followup to my NEC uPD7811 series ROM reader i built last year, i decided to try a counterpart for the even older uPD7801

there's no mode pins for disabling/enabling internal memory this time, but i tried to design a simple clock glitching attack to force booting into external ROM, and it works! (albeit somewhat tempermentally)

first random chip from ebay turns out to be from the Casio FP-1000 computer, which was already dumped via other methods, but i have another one to try later