Another one: the old Z-80 CPU had two sets of registers, and a single instructio... | Hacker News

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		pwg on July 14, 2018 \| parent \| context \| favorite \| on: Asmttpd: Web server for Linux written in amd64 ass... Another one: the old Z-80 CPU had two sets of registers, and a single instruction to swap between the main and the alternate register set. http://landley.net/history/mirror/cpm/z80.html (search for "alternate registers").

nineteen999 on July 16, 2018 [–]

Sadly it appears that none of the Z80 C compilers (at least the ones I've used, Hi-Tech C and sdcc) are smart enough to use it.

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