a. Write Z-80 instructions that perform the following operation: Line 1) Copy 70 H to accumulator Line 2) Copy AAH to register B Line 3) Add the content of register A with OCH Line 4) Copy the content of accumulator to register C Line 5) Switch the contents of general purpose registers by those of alternate registers Line 6) Copy 03H to register B Line 7) Subtract the content of register A by that of register B Line 8) Change the 2nd bit of reg B into 1 Line 9) Change the 4th bit of reg B into 0 A Register Content (In Hexadecimal) Ex: After line 0) After line 1) After line 2) After line 3) After line 4) After line 5) After line 6) After line 7) After line 8) After line 9) AA B BB C FF B' FF C' FF b. State the contents of register A, B, C, B', and C' after each line of operations! Use the following format in your answer