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ARM Compiler armasm User Guide : VSUBHN

VSUBHN

Vector Subtract and Narrow, selecting High half.

Syntax

VSUBHN{cond}.datatype Dd, Qn, Qm

where:

cond

is an optional condition code.

datatype

must be one of I16, I32, or I64.

Dd, Qn, Qm

are the destination vector, the first operand vector, and the second operand vector.

Operation

VSUBHN subtracts the elements of one quadword vector from the corresponding elements of another quadword vector, selects the most significant halves of the results, and places the final results in the destination doubleword vector. Results are truncated.

Related reference

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