mask>count ( n rep -- n' )

Vocabulary

math.vectors.simd.private

Inputs

n	an object
rep	an object

Outputs

n'

an object

Definition

USING: combinators cpu.architecture kernel math math.bitwise ;

IN: math.vectors.simd.private

: mask>count ( n rep -- n' )
    [ bit-count ] dip {
        { float-4-rep [ ] }
        { double-2-rep [ -1 shift ] }
        { uchar-16-rep [ ] }
        { char-16-rep [ ] }
        { ushort-8-rep [ -1 shift ] }
        { short-8-rep [ -1 shift ] }
        { ushort-8-rep [ -1 shift ] }
        { int-4-rep [ -2 shift ] }
        { uint-4-rep [ -2 shift ] }
        { longlong-2-rep [ -3 shift ] }
        { ulonglong-2-rep [ -3 shift ] }
    } case ; inline