1. MICROINSTRUCTIONS:

Give the binary microinstruction corresponding to each of the following sets of micro-operations:

a. Increment SP by 1. Store the results back in the SP. Load the MAR with the SP goto 0.

b. Load the contents of register IR into MAR; Read from main memory.

c. Perform the Boolean AND of the contents of IR and AMASK; Store the result in register AC.

d. Test the contents of register TIR for its sign bit N;

If N is set, got to the microinstruction at address 50;

Shift the contents of TIR one bit to the left;

Store the result back into the TIR register.