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17.40 LDUR

Load Register (unscaled).

Syntax

LDUR Wt, [Xn|SP{, #simm}] ; 32-bit general registers

LDUR Xt, [Xn|SP{, #simm}] ; 64-bit general registers

Where:

Wt

Is the 32-bit name of the general-purpose register to be transferred.

Xt

Is the 64-bit name of the general-purpose register to be transferred.

Xn|SP

Is the 64-bit name of the general-purpose base register or stack pointer.

simm

Is the optional signed immediate byte offset, in the range -256 to 255, defaulting to 0.

Usage

Load Register (unscaled) calculates an address from a base register and an immediate offset, loads a 32-bit word or 64-bit doubleword from memory, zero-extends it, and writes it to a register. For information about memory accesses, see Load/Store addressing modes in the ARMv8-A Architecture Reference Manual.

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