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

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=139

--- Comment #18 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #17)

> > Remind me, why 4 regs on swizzle?
> 
> 2-input swizzle ([f]swizzle2):

ohhh yehyehyeh, i remember now - argh where did i see a link
to a spec on this?  this one isn't it:
https://www.khronos.org/opengl/wiki/Data_Type_(GLSL)#Swizzling

we need to make sure, have some pseudocode of the operations.
swizzle i understand, swizzle2 i don't.

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