[Libre-soc-isa] [Bug 533] design new CR instructions suitable for predication

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=533

--- Comment #9 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
i'm also wondering:

src1 ← VSR[VRA+32]
src2 ← VSR[VRB+32]
mask ← VSR[VRC+32]
VSR[VRT+32] ← (src1 & ~mask) | (src2 & mask)

is there a way that, hypothetically, the new CR operations could be leveraged
to achieve that style of mask operation (on integers) but using less bits in
instructions to specify the required src regs?

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