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Microprocessors
Tough Microprocessors Interview
Quiz 1
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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
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
Q.3
When the instruction, FDIV is performed, the destination is
a) memory
b) stack top
c) register
d) stack bottom
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
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)
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
Q.7
The instruction that loads log(to the baseto stack top is
a) FLDPI
b) FLDLG2
c) FLD2T
d) FLDLN2
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
Q.9
When the instruction FINIT performs its function, then the TAG status is
a) set
b) empty
c) reset
d) zero
Q.10
The instruction that enables the interrupt structure and response mechanism is
a) FINIT
b) FDISI
c) FENI
d) FLDCW
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
Q.12
The instruction that is the NOP instruction of the coprocessor is
a) CNOP
b) FNOP
c) SNOP
d) PNOP
0 h : 0 m : 1 s
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