Add Pair of elements (scalar).
Is the destination width specifier,
- Is the number of the SIMD and FP destination register.
- Is the name of the SIMD and FP source register.
Is the source arrangement specifier,
Add Pair of elements (scalar). This instruction adds two vector elements in the source SIMD and FP register and writes the scalar result into 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.