1. The instruction that converts the result in an unpacked decimal digits is
a. AAA
b. AAS
c. AAM
d. All of the mentioned
Ans- d. All of the mentioned
2. During comparison operation, the result of comparing or subtraction is stored in
a. memory
b. registers
c. stack
d. no where
Ans- d. no where
3. The instruction, CMP to compare source and destination operands it performs
a. addition
b. subtraction
c. division
d. multiplication
Ans- b. subtraction
4. In general, the destination operand of an instruction can be
a. memory location
b. register
c. immediate data
d. memory location and register
Ans- d. memory location and register
5. In general, the source operand of an instruction can be
a. memory location
b. register
c. immediate data
d. all of the mentioned
Ans- d. all of the mentioned
6. The flag that acts as Borrow flag in the instruction, SBB is
a. direction flag
b. carry flag
c. parity flag
d. trap flag
Ans- b. carry flag
7. The instruction that enables subtraction with borrow is
a. DEC
b. SUB
c. SBB
d. None of the mentioned
Ans- c. SBB
8. The instruction that subtracts 1 from the contents of the specified register/memory location is
a. INC
b. SUBB
c. SUB
d. DEC
Ans- d. DEC
9. The instruction, "INC" increases the contents of the specified register or memory location by
a. 2
b. 0
c. 1
d. 3
Ans- c. 1
10. The instruction "JUMP" belongs to
a. sequential control flow instructions
b. control transfer instructions
c. branch instructions
d. control transfer & branch instructions
Ans- d. control transfer & branch instructions