[Libre-soc-dev] svp64 review

Jacob Bachmeyer jcb62281 at gmail.com
Tue Jul 26 02:39:23 BST 2022

Lauri Kasanen wrote:
> On Mon, 25 Jul 2022 15:57:29 +0100
> lkcl <luke.leighton at gmail.com> wrote:
>> On Mon, Jul 25, 2022 at 3:47 PM Lauri Kasanen <cand at gmx.com> wrote:
>>> What about the BE requirement? Any new implementation is going to be
>>> LE, so if compliance requires BE, that's 2x the workload.
>> all of the ABIs make endian-ness optional. it's just that you don't get
>> people coming forward to spend the time and money on Distro porting.
>> to the point where software such as golang are actually ripping out BE.
> Sorry, that doesn't answer the question - BE was a requirement for the
> OpenPower ISA implementation to be compliant. I was asking if this has
> changed.

I am looking at the "Power ISA[TM] Version 3.1B" publicly available from 
the OpenPOWER Foundation's Web site.  The Preface defines four 
"Compliancy Subsets" each of which builds on the lower levels.  BE is 
optional for every subset except for the "AIX Compliancy Subset (ACS)" 
which is the highest level.

-- Jacob

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