As the x86 ISA teaches us, mistakes are forever. | Hacker News

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		rbanffy on Feb 11, 2025 \| parent \| context \| favorite \| on: Work at the Mill: The story of Digital Equipment C... As the x86 ISA teaches us, mistakes are forever.

astrange on Feb 11, 2025 [–]

x86 has quite a few features disabled. I'm pretty sure there are CPUs that don't implement BOUND and several that turned off SGX after shipping with it.

kjs3 on Feb 12, 2025 | [–]

BCD instructions disappeared along the way.

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