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ARM Compiler armasm User Guide : EXT (vector)

EXT (vector)

Extract vector from pair of vectors.

Syntax

EXT Vd.T, Vn.T, Vm.T, #index

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 first SIMD and FP source register.

Vm

Is the name of the second SIMD and FP source register.

index

Is the lowest numbered byte element to be extracted in the range shown in Usage.

Usage

The following table shows the valid specifier combinations:

Table 20-6 EXT (Vector) specifier combinations

T index
8B to 7
16B 0 to 15
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