[Libre-soc-isa] [Bug 933] prefix-code (like huffman code) decode/encode instructions

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=933

--- Comment #12 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #11)

> that doesn't really work, >4-bit codes are pretty common, the code size is
> limited to 6-bits since the tree is a 64-bit value and 6 = log2(64).

can't go to register-pairs it'd be too much. in theory could go to
a vec2/3/4 though, hmmm....

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