Assembly Language Programming Multiple Choice Questions and Answers:-
1. Assembly language programs are written using
A) Hex code
B) Mnemonics
C) ASCII code
D) None of these View
ANS: B
2. For the execution of an interrupt applied at INTR, the number of states required by 8085 Microprocessor is
A) 4
B) 6
C) 12
D) 18
ANS: C
3. In 8085 which is/are the 16-bit registers?
A) Program Counter
B) Stack Pointer
C) Both A) & B)
D) None of the above
ANS: C
4. How many memory locations are required to store the instruction LXIH, 0800H in an 8085 assembly language program?
A) 1
B) 2
C) 3
D) 4
ANS: B
5. The instruction DEC N inform the assembler to
A) Decrement the content of N
B) Decrement the data addressed by N
C) Convert signed decimal number to binary
D) None of the above
ANS: A
Assembly Language Programming Objective Questions Pdf Free Download::
6. In 8085 microprocessor, the value of the most significant bit of the result following the execution of any arithmetic or Boolean instruction is stored in the
A) carry status flag
B) auxiliary carry status flag
C) sign status flag
D) zero status flag
ANS: C
7. Instructions performing actions in assembly language are called
A) imperative statements
B) declarative statements
C) directive statements
D) none of the above
ANS: A
8. What is the content of the Stack Pointer?
A) Address of the current instruction
B) Address of the next instruction
C) Address of the top element of the stack
D) None of the above
ANS: C
9. Which of the following interrupt has the highest Priority?
A) INTR
B) TRAP
C) RST 7.5
D) RST 6.5
ANS: B
10. Number of machine cycles required for RET instruction in 8085 microprocessor is
A) 1
B) 2
C) 3
D) 5
ANS: C