From: John (john_at_ucc.gu.uwa.edu.au)
Date: 2002-10-02 10:12:59
email@example.com writes: >A question: how would one construct a circuit to toggle an LED everytime >$dfdf was accessed? Back in the old days, you'd use something like the 74LS682. Feed it two 8-bit numbers, and it would tell you if they are equal. There was another that matched 12 bits (or was it more?) against a constant. Quite clever - rearrange the bits so that all of the ones are at one end, then just tell it how many there are. But I can't remember the number, and can't find it anywhere. These days, the answer to just about every digital design question is either a GAL (or other programmable logic), or a microcontroller. John Message was sent through the cbm-hackers mailing list
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