[Libre-soc-bugs] [Bug 550] binutils support needed for svp64

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=550

--- Comment #46 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
i must apologise: sv.bc in svp64.py is slightly behind what's actually
in the spec.  "svstep" mode turned out to be fantastically complex in
hardware and i removed it.  the merging of the capability of the
svstep instruction into branch turned out to be CISC, not RISC,
and in RISC you keep things as two "simpler" instructions.

CTR-mode on the other hand is a simple variant of standard bcctr.
it's dead easy.

VLset mode is also not that hard.

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