ARM Compiler armasm User Guide : 14.8 VABA and VABAL

14.8 VABA and VABAL

Vector Absolute Difference and Accumulate.

Syntax

VABA{cond}.datatype {Qd}, Qn, Qm

VABA{cond}.datatype {Dd}, Dn, Dm

VABAL{cond}.datatype Qd, Dn, Dm

where:

cond: is an optional condition code.
datatype: must be one of S8, S16, S32, U8, U16, or U32.
Qd, Qn, Qm: are the destination vector, the first operand vector, and the second operand vector, for a quadword operation.
Dd, Dn, Dm: are the destination vector, the first operand vector, and the second operand vector, for a doubleword operation.
Qd, Dn, Dm: are the destination vector, the first operand vector, and the second operand vector, for a long operation.

Operation

VABA subtracts the elements of one vector from the corresponding elements of another vector, and accumulates the absolute values of the results into the elements of the destination vector.

VABAL is the long version of the VABA instruction.

Related concepts

9.10 Advanced SIMD data types in A32/T32 instructions

Related reference

7.11 Condition code suffixes

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