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ARM Compiler armasm User Guide : SMNEGL

SMNEGL

Signed Multiply-Negate Long.

This instruction is an alias of SMSUBL.

Syntax

SMNEGL Xd, Wn, Wm

Equivalent to SMSUBL Xd, Wn, Wm, XZR.

Where:

Xd

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

Wn

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

Wm

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

Operation

Signed Multiply-Negate Long multiplies two 32-bit register values, negates the product, and writes the result to the 64-bit destination register.

Xd = -(Wn * Wm).

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