After reminiscing with Dr J R Stockton about old computers, it got to converting my 16-bit algorithm for Easter to 8-bit Z80 assembly language. I spent quite some time hand-optimising it (which is an enjoyable past-time in itself, if there's no deadline involved!) and posted the code with a short commentary.
I had thought about writing a bespoke super-optimiser to try to find the "ultimate" Z80 code, but with just under 500 bytes of machine code, that's over 101000 permutations. I think I might have to divide and conquer!
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