Load Register Signed Word (literal).
Is the 64-bit name of the general-purpose register to be loaded.
Is the program label from which the data is to be loaded. Its offset from the address of this instruction, in the range ±1MB.
Load Register Signed Word (literal) calculates an address from the PC value and an immediate offset, loads a word from memory, and writes it to a register. For information about memory accesses, see Load/Store addressing modes in the ARMv8-A Architecture Reference Manual.