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Questions - sse4

Is there a way to cast integers to bytes, knowing these ints are in range of bytes. Using SSE?

In an xmm register I have 3 integers with values less than 256. I want to cast these to bytes, and save them to memory. I don't know how to approach it. I was thinking about getting those numbers from...
test-img

thomas113412

assembly

x86-64

masm

sse

sse4

Votes: 0

Answers: 1

Latest Answer

The easiest way is probably to use pshufb to permute the bytes, followed by movd to store the datum: ; convert dwords in xmm0 into bytes and store into dest pshufb xmm0, xmmword ptr m...
test-img

fuz

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