[libre-riscv-dev] fp special functions

[Jacob Lifshay]

On Sun, Aug 4, 2019, 22:41 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
wrote:

> https://libre-riscv.org/rv_major_opcode_1010011/#transcendentals_1op
>
> wow, that filled up *real* fast.  i'd missed atan, in a 2nd reading of
> bug #127 - got it now.
>
note that atan(x) and atanpi(x) are just atan2(x, 1.0) and atan2pi(x, 1.0),
so the atan and atanpi instructions are not needed