— Jojo
在 2021年7月22日 +0800 AM4:53，Jim Wilson <j...@sifive.com>，写道：
> On Tue, Jul 13, 2021 at 11:06 AM Palmer Dabbelt <pal...@dabbelt.com> wrote:
> > Is there are documentation as to what this "theadc" extension is?
>
> The best doc I know of is https://github.com/isrc-cas/c910-llvmThe README
> is in Chinese, but google translate does a decent job on it. If you want
> more details, you have to read the llvm sources to see exactly what each
> instruction does. They have mentioned that they are working on English
> language docs, but I don't know when they will be available.
> There are quite a few T-Head specific instructions here. This patch is only
> adding support for a few of them, probably as a trial to see how it goes
> before they try to add the rest.
Hi,
Please let me feed more details for this patch,
There are about ~100+ instructions in our ISA spec,
and we put the RFC[1] to ask guide how to commit vendor extension ISAs,
we want to commit one type instruction every time, it’s helpful for
reviewing.
Some Chinese T-HEAD ISA Specs have been on the our web page [2] already,
and we are converting these docs to english version to help your
reading :)
it will be out in the next week, including binutils.
Thanks for your suggestion of the patch
[1] https://github.com/riscv/riscv-gcc/issues/278
[2] https://www.t-head.cn/technology
> Jim
>
