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

From: Richard Henderson
Subject: Re: [RFC 00/15] support subsets of bitmanip extension
Date: Thu, 19 Nov 2020 14:26:54 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

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.


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