2shuffler ( indexes/mask -- mask )

Vocabulary

cpu.x86.assembler.private

Inputs

indexes/mask

an object

Outputs

mask

an object

Definition

USING: kernel math math.bitwise sequences ;

IN: cpu.x86.assembler.private

: 2shuffler ( indexes/mask -- mask )
    dup integer? [ first2 { 1 0 } bitfield ] unless ;