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Re: Patch to implement rotates by zero
- From: "Maciej W. Rozycki" <macro at ds2 dot pg dot gda dot pl>
- To: cgd at broadcom dot com
- Cc: rsandifo at redhat dot com, binutils at sources dot redhat dot com, echristo at redhat dot com
- Date: Tue, 27 Aug 2002 11:42:26 +0200 (MET DST)
- Subject: Re: Patch to implement rotates by zero
- Organization: Technical University of Gdansk
On 26 Aug 2002 cgd@broadcom.com wrote:
> * I checked the r4k UM and it does in fact match what you said, _but_
> I do note that the PDF I have (second edition, from the MIPS web
> site IIRC), same pages as you mention, has change bars next to the
> statements in sll/sllv descriptions which define this behaviour. I
> don't know how first edition looked (or how the earliest r4k parts
> behaved).
I think that was added as a clarification. If earlier R4000/R4400
processors behaved differently, there would surely be a note in their
errata, but there isn't one (not sure about R4000 rev. 1 -- anyone knows
if the processor was publicly released at all?).
--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +