[PATCH] RISC-V: Add experimental support for Zvabd extension

[Jiawei]

Hi Zhongyao,

Sure, I can help pick this up.

Thanks for the updated status and spec links. Since Zvabd is now in 
Freeze and
the only remaining change appears to be the mnemonic rename, I will 
refresh my
earlier binutils patch and update it against the current spec.

I will check the previous comments and post a new version after updating the
opcodes/gas changes and tests.

Best regards,
Jiawei

在 2026/5/27 8:56, chen.zhongyao@zte.com.cn 写道:
>> See https://sourceware.org/pipermail/binutils/2025-August/143522.html for
>> an earlier submission. Sadly, like for the other submission, the link here
>> doesn't actually point at a (complete) spec of the extension.
> Sorry, I missed the earlier submission.
>
> Zvabd is now in the "Freeze" state:
> Status: https://riscv.atlassian.net/browse/RVS-3896
> Spec: https://github.com/riscv/integer-vector-absolute-difference/pull/1
>
> The only change since then is the mnemonic. I think it's time to move this forward,
> the GCC patch is ready, but it's blocked waiting for binutils to land first.
>
> Jiawei, could you help pick this up?
>
>
> --
> Zhongyao