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ZIP2 (vector)

Zip vectors (secondary).


ZIP2 Vd.T, Vn.T, Vm.T


Is the name of the SIMD and FP destination register.
Is an arrangement specifier, and can be one of 8B, 16B, 4H, 8H, 2S, 4S or 2D.
Is the name of the first SIMD and FP source register.
Is the name of the second SIMD and FP source register.


Zip vectors (secondary). This instruction reads adjacent vector elements from the lower half of two source SIMD and FP registers as pairs, interleaves the pairs and places them into a vector, and writes the vector to the destination SIMD and FP register. The first pair from the first source register is placed into the two lowest vector elements, with subsequent pairs taken alternately from each source register.


This instruction can be used with ZIP1 to interleave two vectors.

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.