[libre-riscv-dev] PPC on Talos and Playstation 3

[Jacob Lifshay]

On Mon, Mar 30, 2020, 01:04 Lauri Kasanen <cand at gmx.com> wrote:

> On Mon, 30 Mar 2020 00:52:31 -0700
> Jacob Lifshay <programmerjake at gmail.com> wrote:
>
> > Normally, the size of a pointer or general-purpose integer register is
> used
> > to determine 32 or 64-bit rather than the size of the FP unit since
> nearly
> > every processor more powerful than a microcontroller supports 64-bit FP.
> > even the 8086 (16-bit) supports 64-bit floating point (or even 80-bit)
> with
> > the 8087 math coprocessor. Also, recent intel processors support 512-bit
> FP
> > registers (the avx512 instruction set), but it's only a 64-bit processor.
>
> Aiye, but the context was running 64-bit fpu code, and with an embedded
> cpu it's possible it would not have such.
>

yeah, I guess.

Sorry if I sound overly negative.

Jacob