[Libre-soc-isa] [Bug 766] Justify log2 addition as helper for pseudo-code

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=766

--- Comment #2 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #1)
> Well, log2 is already used in the OpenPower ISA v3.1 specification, in the
> dcbz instruction's pseudo-code (ignore messy character set, I'm too lazy to

ahh, niiice, good find.

then that easily justifies using it, in fact it should be raised as
a bug with the OPF ISA WG that the function is "not defined" in Section
1.3.4 (and must be added)

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