Question: NOTE !! You must answer them all OR leave them to another Instructor. Be aware These multiple choices from class 8051 Microcontroller and Embedded Systems

NOTE !! You must answer them all OR leave them to another Instructor.

Be aware These multiple choices from class "8051 Microcontroller and Embedded Systems"

Give direct answers!

NOTE !! You must answer them all OR leave them to another

20. What is the final result in the accumulat or following the execution of the following program segment? MOV A, #52H ADD A, #39H DA A A. 8BH B. 91H C. 81H D. 7BH 21. W hat is the final result in Port 2 after the execution of the following program segment? MOV A, #91H ORLA #IAH MOV P2, A A. 91H B. 1AH 9BH D. 11H 22. What is the final result in Port 1 after the execution of the following program segment? MOV A, #55H XRL A, #0AAH OV P1, A A) FFH B. 55H C. AAH D. 00H

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