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ARM Compiler armasm User Guide : LDURSH

LDURSH

Load Register Signed Halfword (unscaled).

Syntax

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

LDURSH 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 Signed Halfword (unscaled) calculates an address from a base register and an immediate offset, loads a signed halfword from memory, sign-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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