Practice Tough Microprocessors Interview Multiple Choice Questions with Answers Quiz-1

Q.1.

Which of the following is not a data transfer instruction?

a) floating point data transfer
b) integer data transfer
c) arithmetic instruction
d) bcd data transfer

Explanation

Q.2.

The instruction that performs real or integer multiplication of the specified operand with stack top is

a) AMUL
b) IMUL
c) RMUL
d) FMUL

Explanation

Q.3.

When the instruction, FDIV is performed, the destination is

a) memory
b) stack top
c) register
d) stack bottom

Explanation

Q.4.

When the instruction, FPREM, is performed, the data stored on to the stack top is

a) dividend
b) divisor
c) quotient
d) remainder

Explanation

Q.5.

If ‘x’ is the value stored at the top of the stack, then the instruction F2XMI calculates the expression

a) 2x
b) 2x+1
c) 2x-1
d) log(2x)

Explanation

Q.6.

The content of the stack is compared with zero to check whether the content is zero, using the instruction

a) FCOM
b) FIST
c) FCOMP
d) FXAM

Explanation

Q.7.

The instruction that loads log(to the baseto stack top is

a) FLDPI
b) FLDLG2
c) FLD2T
d) FLDLN2

Explanation

Q.8.

The instructions that are used to program the numeric processor or to handle the internal housekeeping functions are

a) transcendental operations
b) comparison instructions
c) constant operations
d) coprocessor control instructions

Explanation

Q.9.

When the instruction FINIT performs its function, then the TAG status is

a) set
b) empty
c) reset
d) zero

Explanation

Q.10.

The instruction that enables the interrupt structure and response mechanism is

a) FINIT
b) FDISI
c) FENI
d) FLDCW

Explanation

Q.11.

The instruction that is used to store the environment of the coprocessor to a destination memory location is

a) FINCSTP
b) FLDENV
c) FFREE
d) FSTENV

Explanation

Q.12.

The instruction that is the NOP instruction of the coprocessor is

a) CNOP
b) FNOP
c) SNOP
d) PNOP

Explanation

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