Which of the following instruction is not valid?
A. MOV AX, BX
B. MOV DS, 5000H
C. MOV AX, 5000H
D. PUSH AX
Answer:A
Which of the following instruction is not valid?
A. MOV AX, BX B. MOV DS, 5000H C. MOV AX, 5000H D. PUSH AX
Explanation: both the source and destination operands cannot be memory locations except for string instructions.