Shift Right and Insert (immediate).
Is a width specifier,
- Is the number of the SIMD and FP destination register.
- Is the number of the first SIMD and FP source register.
- Is the right shift amount, in the range 1 to 64.
Shift Right and Insert (immediate). This instruction reads each vector element in the source SIMD and FP register, right shifts each vector element by an immediate value, and inserts the result into the corresponding vector element in the destination SIMD and FP register such that the new zero bits created by the shift are not inserted but retain their existing value. Bits shifted out of the right of each vector element of the source register are lost.
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.