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Questions - extended-precision

AArch64: compare 256-bit unsigned integers

While learning Arm NEON instruction set, I tried to implement 256-bit numbers comparison (A <= B). Below is the implementation I ended up with, but I doubt my approach is good. Maybe there's some w...
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Alexander Zhak

assembly

arm64

neon

bigint

extended-precision

Votes: 0

Answers: 1

Latest Answer

I reversed the boolean, replaced xtn/xtn2 pairs with uzp1, and re-scheduled the insructions. cmhi v12.4s, v10.4s, v0.4s cmhi v13.4s, v11.4s, v1.4s cmhi v10.4s, v0.4s, v10.4s cmhi v11.4s, v1.4s, v11.4...
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Jake &#39;Alquimista&#39; LEE

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