Linked by Thom Holwerda on Tue 15th Jan 2013 22:29 UTC
Hardware, Embedded Systems "In this article, I show at the transistor and silicon level. I've discussed the mathematics of the 6502 overflow flag earlier and thought it would be interesting to look at the actual chip-level implementation. Even though the overflow flag is a slightly obscure feature, its circuit is simple enough that it can be explained at the silicon level."
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Comment by Valhalla
by Valhalla on Wed 16th Jan 2013 16:17 UTC
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Very interesting (and very deep) article. As someone who first learned programming on a 6502 (or rather 6510 as it was on a Commodore 64) I never even remotely considered how this worked, just that it did.

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