Re: [PATCH v2 3/3] target/openrisc: Setup FPU for detecting tininess before rounding

[Richard Henderson]

On 5/10/23 16:32, Stafford Horne wrote:
> OpenRISC defines tininess to be detected before rounding.  Setup qemu to
> obey this.
>
> Signed-off-by: Stafford Horne <shorne@gmail.com>
> ---
> Since v1:
>   - Remove setting default NaN behavior.  I discussed with the FPU developers 
> and
>     they mentioned the OpenRISC hardware should be IEEE compliant when handling
>     and forwarding NaN payloads, and they don't want try change this.

There is no such thing as IEEE compliant for NaN payloads.
All of that is implementation defined.
All OpenRISC needs to do is document its intentions (and then double-check that 
fpu/softfloat-specialize.c.inc does what is documented).


Anyway, back to this patch,
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

:-)


r~