UBFIZ ( Rd Rn lsb width -- )

Vocabulary

cpu.arm.64.assembler

Inputs

Rd	an object
Rn	an object
lsb	an object
width	an object

Outputs

None

Definition

USING: cpu.arm.64.assembler.private kernel math math.bitwise
math.order ;

IN: cpu.arm.64.assembler

: UBFIZ ( Rd Rn lsb width -- )
    [ ?max-width ] dip 3dup spin [ 1 ] [ 2^ ] [ - ] tri*
    between? [ immediate-error ] unless
    [ neg ] [ bits ] [ 1 - ] tri* UBFM ;