Specify the register contents and the flag status as the following instructions are executed. A B S Z CY 00 FF 0 1 0 Initial Contents MVI A, F2H MVI B, 7AH ADD B STA 2200H HLT

Zero flag (Z): The Z flag is set to 1, if after arithmetic and logical operations, the 8-bit result thus produced, is 00H. If the 8-bit result is not equal to 00H, the Z flag is reset to 0. Thus the Z flag is hoisted to indicate that the result is 0. 

The register contents and flag status after each instruction is executed are as follows:

Instruction	A	B	S	Z	CY
Initial contents	00	FF	0	1	0
MVI A, F2H	F2	FF	0	0	0
MVI B, 7AH	F2	7A	0	0	0
ADD B	6C	7A	0	0	1
STA 2200H	6C	7A	0	0	1
HLT	6C	7A	0	0	1

After executing the MVI A, F2H instruction, the contents of the A register will be F2H and the flag status will not change:

A B S Z CY F2 FF 0 0 0

After executing the MVI B, 7AH instruction, the contents of the B register will be 7AH and the flag status will not change:

A B S S Z CY F2 7A 0 0 0 0

After executing the ADD B instruction, the value in the B register (7AH) will be added to the value in the A register (F2H), and the result will be stored in the A register. Since the sum of F2H and 7AH is 16CH, the carry flag (CY) will be set to 1 and the zero flag (Z) will be set to 0:

A B S Z CY 6C 7A 0 1 0

After executing the STA 2200H instruction, the value in the A register (6CH) will be stored at memory location 2200H, and the flag status will not change:

A B S Z CY 6C 7A 0 1 0

After executing the HLT instruction, the program will halt, and the flag status will not change:

A B S Z CY 6C 7A 0 1 0

Note that the S and Z flags are not used in this program, so their values will not change.