[PATCH] MIPS: Correct opcode for some IL3A instructions

Jiaxun Yang jiaxun.yang@flygoat.com
Tue Mar 20 16:47:00 GMT 2018


Hi Maciej

> I will be happy to accept your change, however I need a better 
> documentation reference as the justification.  There are a couple of
minor 
> issues as well.  See below for details.

> > Correct instrotions' opcode according to Loongson 3A2000's user
manual.
> > Ref(in Chinese): http://www.loongson.cn/uploadfile/cpu/3A2000/Loong
son3A2000_user2.pdf

>  Are you sure it is the right reference though?  I looked through
the 
> manual and I cannot find encodings for these instructions shown
anywhere.  
> Granted, I might well be missing something, given my regrettable lack
of 
> skills in Chinese, so I will appreciate a specific page pointer if
indeed 

Well, in this document, they didn't exactly mention the opcode, and I
infered the opcodes by the sequences of these instructions appeared in
this document.... According my test, they are right.

After checked all loongson's publictions, I realized no document from
Loongson can clearly proof this.

Will acks from Loongson and Lemote staffs be enough to back this
change?

Sorry for the supper long delay because I missed this E-mail.

Thanks.

> the required information is there and its only me unable to find it.



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