[Libre-soc-isa] [Bug 1057] split out all int/fp min/max ops into their own RFC ls013

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Wed Apr 19 20:18:53 BST 2023


--- Comment #11 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #10)

> x86 has fp/int simd min/max but only has fp scalar min/max.

i meant has VSX *elements* got minw. answer is no. section 6.9.2
p379 Public v3.1.  i am tempted
to suggest that programmers may use extsw and then the full
64-bit min/max.

adding functionality that no other ISA has is risky, it means we have
no historic or technical justification.

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