[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 #145 from Alexandre Oliva <oliva at gnu.org> ---
looking at 4.4 now

it defines:

M: insn[0]
N: insn[15]

whereas 2.1.1 had them reversed:

| E01      | Cmaj.m | fld1     | fld2     | M | 10b
[...]
| N | immf | Cmaj.m | fld1     | fld2     | M | 16b

this makes the code snippets afterwards very confusing,
as they uses N from 10-bit insns that only have M,
and M and N with reversed codes.

Though each section defines M and N independently,
they're both individually self-consistent, but mutually confusing.
IMHO it would be desirable to make them mutually self-consistent too.

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