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16.138 SXTW

Sign Extend Word.

This instruction is an alias of SBFM.

Syntax

SXTW Xd, Wn

Equivalent to SBFM Xd, Xn, #0, #31.

Where:

Xd

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

Xn

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

Wn

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

Operation

Sign Extend Word sign-extends a word to the size of the register, and writes the result to the destination register.

Xd = SignExtend(Wn31:0).

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