[Libre-soc-bugs] [Bug 238] POWER Compressed Formal Standard writeup

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=238

--- Comment #70 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #69)
> (In reply to Luke Kenneth Casson Leighton from comment #68)
> > tck tck... thinks... does the dual halfword memory swapping similarly
> > interfere with ppc64le ABI? i would expect the answer to that to be yes.
> 
> No it does not interfere, because it is changing both the order that bytes
> are conceptually read from memory as well as swapping the instruction
> encoding so that the combination matches the original unmodified 32-bit LE
> encoding.

that's an important missing detail not made clear in the bugreport!
can you make it clearer in bug #529 with some examples? (then we add
them to the wiki page once it's completely clear)

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