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

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Mon Nov 30 19:38:24 GMT 2020


--- Comment #131 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #126)
> (In reply to Alexandre Oliva from comment #116)
> > insns.  for 48-bit, ...
> this is the 16-bit Compressed bugreport.  48-bit encodings are appropriate
> to discuss under the 16/32/48/64-bit encoding bugreport.
> please can we keep the discussion under the Compressed bugreport to
> 16-bit Compressed, specifically right now the v1 encoding and making sure
> that it is understood.

48-bit is important to 16-bit compressed because it is another instruction
encoding that mostly requires 32/64-bit instructions to be align-2 rather than
align-4. This is relevant because one of the proposed compressed instruction
schemes would have required 32-bit instructions to be align-4.

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