[Libre-soc-dev] svp64 review

Lauri Kasanen cand at gmx.com
Mon Jul 25 15:48:01 BST 2022

On Mon, 25 Jul 2022 15:16:11 +0100
lkcl via Libre-soc-dev <libre-soc-dev at lists.libre-soc.org> wrote:

> nobody else has IBM's resources *and there are no reference implementations* [A2O and A2I are Scalar v2.06/8 from *15* years ago]
> if you put say a scant 2 days per instruction including unit tests and Compliance Test Suite Validation which honestly is barely enough then multiply that by 750 (total MANDATORY for Linux Compliancy with VSX on top of SFFS which is 214) it comes out to 1,500 **DAYS** just to add VSX.
> divide by 250 and you have a jaw-dropping six YEARS of development effort at a crash-course speed that will leave the engineers desperately exhausted, uncomfortable, underconfident and highly likely to leave the team long before those 750 instructions are complete.
> i made these insights very clear multiple times and the message seems to have gotten through.

What about the BE requirement? Any new implementation is going to be
LE, so if compliance requires BE, that's 2x the workload.

- Lauri

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