[libre-riscv-dev] [Bug 139] Add LD.X and ST.X? Strided

bugzilla-daemon at libre-riscv.org bugzilla-daemon at libre-riscv.org
Thu Oct 3 11:24:51 BST 2019


--- Comment #6 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Jacob Lifshay from comment #5)
> (In reply to Luke Kenneth Casson Leighton from comment #2)
> > For dynamic LD/ST-Swizzle, R-Type would give 3 operands, src2 could be used
> > as a dynamic swizzle specifier, particularly if vectorised and set to 8bit
> > it will pack very efficiently.  The rest would be just like standard LD/ST
> > where funct7 could be the (truncated) immediate.
> would also like dynamic-swizzle without LD/ST.

swizzle is usually uniform, so we should have both scalar and vector swizzle

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