I remember that many years ago there was a push for the x32 ABI[0] that could, i... | Hacker News

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		haolez on Oct 1, 2024 \| parent \| context \| favorite \| on: Dell XPS13 RAM Upgrade I remember that many years ago there was a push for the x32 ABI[0] that could, in theory, use less RAM in a 64-bit machine. I also remember that I tried to compile Chromium with this ABI enabled and there was a lot of 64-bit bit ops that prevented me from succeeding. What happened to this effort? Does anyone more knowledgeable know? [0] https://en.wikipedia.org/wiki/X32_ABI

crest on Oct 1, 2024 [–]

Doesn't userspace have access to the full ISA in the x32 ABI and the page tables are just configured to wrap at 32 bits?

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