Question

The accumulator of the 8085 microprocessor contains data BEH and register B contains data 46H. What will be the content of the accumulator in hexadecimal after execution of the following instruction independently:

ORI 79H

Answer 1

After the execution of the instruction ORI 79H, the content of the accumulator will be FFH.

The initial content of the accumulator (A) is BEH, and the instruction specifies, and the instruction specifies immediate data of 79H.

BEH = 1011 11102

79H = 0111 10012