CMPP Compare with tag This instruction subtracts the 56-bit address held in the second source register from the 56-bit address held in the first source register, updates the condition flags based on the result of the subtraction, and discards the result. SUBPS 1 0 1 1 1 0 1 0 1 1 0 0 0 0 0 0 0 1 1 1 1 1 CMPP <Xn|SP>, <Xm|SP> SUBPS XZR, <Xn|SP>, <Xm|SP> Unconditionally <Xn|SP> Is the 64-bit name of the first source general-purpose register or stack pointer, encoded in the "Rn" field. <Xm|SP> Is the 64-bit name of the second general-purpose source register or stack pointer, encoded in the "Rm" field. 2026-03-26 20:27:25 2026-03_rel