Re: [RFC 00/15] support subsets of bitmanip extension

[Richard Henderson]

On 11/18/20 12:29 AM, frank.chang@sifive.com wrote:
> This patchset implements RISC-V B-extension latest draft version
> (2020.10.26) Zbb, Zbs and Zba subset instructions.

With some additional instructions from Zbp, it seems.  Although the document
isn't completely coherent, with various instructions being present in multiple
subsets, and some instructions w/ strike-out.

The B extension requires more than these three, but I suppose turning it on
with just these 3 subsets during development is ok.


r~