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NEON vectors

A NEON operand can be a vector or a scalar. A NEON vector can be a 64-bit doubleword vector or a 128-bit quadword vector.

The size of the elements in a NEON vector is specified by a datatype suffix in the NEON instruction.

Doubleword vectors can contain:

  • eight 8-bit elements

  • four 16-bit elements

  • two 32-bit elements

  • one 64-bit element.

Quadword vectors can contain:

  • sixteen 8-bit elements

  • eight 16-bit elements

  • four 32-bit elements

  • two 64-bit elements.