Programming.
Rr and address from the ALU are presented in the same clock cycle. ST Z+,Rr Stores Rr to the data memory addressed by register Z and increments Z afterwards. Z →ALUi1, Z →MARDM, Rr →DM, instruct ALU to increment ALUo →Z ST -Z,Rr Same as before, but decrements Z before using it as an address. Z