[libre-riscv-dev] [isa-dev] Re: FP transcendentals (trigonometry, root/exp/log) proposal

[lkcl]

On Monday, August 12, 2019 at 6:52:16 PM UTC+1, MitchAlsup wrote:
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>
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> On Sunday, August 11, 2019 at 10:20:28 PM UTC-5, lkcl wrote:
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>> https://libre-riscv.org/ztrans_proposal/#khronos_equiv
>>
>
> I would like to point out that the general implementations of ATAN2 do a 
> bunch of special case checks and then simply call ATAN.
>

if there's no objections, i'll put ATAN back in [where it was formerly an 
alias ATAN(x)=ATAN2(1.0, x)].  that will require implementors to microcode 
the algorithm that Mitch described, and allow them to keep both 3D and UNIX 
Profiles optimal without compromise of either profile.

l.