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EXTR

Extract register.

This instruction is used by the alias ROR (immediate).

Syntax

EXTR Wd, Wn, Wm, #lsb ; 32-bit general registers

EXTR Xd, Xn, Xm, #lsb ; 64-bit general registers

Where:

Wd

Is the 32-bit name of the general-purpose destination register.

Wn

Is the 32-bit name of the first general-purpose source register.

Wm

Is the 32-bit name of the second general-purpose source register.

lsb

Depends on the instruction variant:

32-bit general registers

Is the least significant bit position from which to extract, in the range 0 to 31.

64-bit general registers

Is the least significant bit position from which to extract, in the range 0 to 63.

Xd

Is the 64-bit name of the general-purpose destination register.

Xn

Is the 64-bit name of the first general-purpose source register.

Xm

Is the 64-bit name of the second general-purpose source register.

Usage

Extract register extracts a register from a pair of registers.

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