20.134 RBIT (vector)

Reverse Bit order (vector).

Syntax

RBIT Vd.T, Vn.T

Where:

Vd
Is the name of the SIMD and FP destination register.
T
Is an arrangement specifier, and can be either 8B or 16B.
Vn
Is the name of the SIMD and FP source register.

Usage

Reverse Bit order (vector). This instruction reads each vector element from the source SIMD and FP register, reverses the bits of the element, places the results into a vector, and writes the vector to the destination SIMD and FP register.

Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.

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