Signed Add Long across Vector.
- Is the destination width specifier, and can be one of the values shown in Usage.
- Is the number of the SIMD and FP destination register.
- Is the name of the SIMD and FP source register.
- Is an arrangement specifier, and can be one of the values shown in Usage.
Signed Add Long across Vector. This instruction adds every vector element in the source SIMD and FP register together, and writes the scalar result to the destination SIMD and FP register. The destination scalar is twice as long as the source vector elements. All the values in this instruction are signed integer values.
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.
The following table shows the valid specifier combinations:
Table 20-36 SADDLV (Vector) specifier combinations