Question # 1
Mechanism used to drop carry for making the calculated address valid is known as:
Carry Overload
Overflow
Address Wraparound
None of the above
Question # 2
we can not Subrtace index register from the base register( bx-si )in assemlby language
True
False
Question # 3
Physical address calculation depends on
Base address
Effective address
Offset Address
None of the above
Question # 4
Simple CMP instruction uses _____ operation
Addition
Division
Subtraction
Multiplicaion
Question # 5
SS is bydefult associated with
BP
IP
SP
BP
Question # 6
When a 32 bit number is divided by a 16 bit number, the remainder is of
4 bits
8 bits
16 bits
32 bits
Question # 7
Which of the following is not a valid instruction in assembly language?
MOV AX, 55
MOV AX, BX
MOV CS, 0xb800
MOV BX, AX
Question # 8
Memory to Memory operation is allowed
True
False
Question # 9
The other directive is “define word” or “dw” with the same syntax as “db” but reserving a whole word of __ bits instead of a byte.
32
8
16
64
Question # 10
we can not add two base register i.e. (bx+bp) or cant use in an instruction
True
False
Question # 11
Size Mismatch Error is a syntax error
False
True
Question # 12
Unconditional jump
Execute in every condition whether true or false
If the condition is true
If the condition is false
None of the given
Question # 13
Bydefault CS is associated with
SS
BP
CX
IP
Question # 14
Register whose each bit specify a different meaning is
Accumulator Register
Pointer Register
Index register
Flag register
Question # 15
Which type of Rotation it is "Every bit moves one position to the right and the bit dropped from the right is inserted at the eft. This bit is also copied into the carry flag."
ROL
RCR
RCL
None of the given
Question # 16
Assembly languague is not a low level language.
True
False
Question # 17
In JA jump is not taken after a CMP if the unsigned destination is larger than the unsigned source.
True
False
Question # 18
Group of bits processor uses to inform memory which element to read/write is collectively known as
Control bus
Data bus
Address bus
RAM
Question # 19
90 is the op-code of
Do nothing
Add
Subtract
Multiplication
Question # 20
Intel follow:
Littel endian
Big endian
Both littel endian and big endian
None of the given
Question # 21
SHL and SAL are same
True
False
Question # 22
Register whose each bit specify a different meaning is
Accumulator Register
Pointer Register
Index register
Flag register
Question # 23
The first 16-bit processor produced by "Intel" was 8085
True
False
Question # 24
The first 16-bit processor produced by "Intel" was 8085
True
False
Question # 25
The extension of assembly languague file is
.doc
.com
.lst
.asm
Question # 26
Bydefault CS is associated with
SS
BP
CX
IP
Question # 27
When a large number is subtracted from a smaller number, a borrow is needed; in this case which flag will be set
ZF
CF
SF
OF
Question # 28
All the addressing mechanisms in iAPX88 return a number called _____________ address.
Effective address
Physical address
Direct address
None of the given
Question # 29
In direct addressing the memory address given in the instruction is
Fixed
Variable
Register
Question # 30
Which type of shifting is "Inserts a zero from the left and moves every bit one position to the right and copies the rightmost bit in the carry flag."
SHL
SAL
SAR
None of the given
Question # 31
mov [1234],ax is an example of
Direct addressing
Base register indirect
Base+index
None of the given
Question # 32
Registers are also called scratch pad ram
True
False
Question # 33
Register are storage cell
Outside the processor
Both inside and outside the processor
Inside the processor
None of the given
Question # 34
Bydefault CS is associated with
SS
BP
CX
IP
Question # 35
In direct addressing the memory address given in the instruction is
Fixed
Variable
Register
Question # 36
The basic function of register is to
Hold the operand
Hold the operator
Hold both the operator and operand
None of the given
Question # 37
Instruction Pointer holds the address of the
Previous instruction to be executed
Current instruction
Next instruction to be executed
None of the given
Question # 38
Register to Register Operation is not allowed
True
False
Question # 39
Address is alway go from
Processor to memory
Memory to processor
Memory to memory
None of the given
Question # 40
CX register mostly use a
Counter register
Flag register
Base register
Desination register
Question # 41
The jump is taken if the last arithmetic operation changed the sign unexpectedly.
JO
JNO
JNZ
JZ
Question # 42
In JA jump is not taken after a CMP if the unsigned destination is larger than the unsigned source.
True
False
Question # 43
which type of rotation it is "The carry flag is inserted from the left, every bit moves one position to the right, and the right most bit is dropped in the carry flag. "
RCR
ROL
RCL
ROR
Question # 44
which type of rotation it is "The carry flag is inserted from the left, every bit moves one position to the right, and the right most bit is dropped in the carry flag. "
RCR
ROL
RCL
ROR
Question # 45
This jump is taken if the last arithmetic operation produced a number in its destination that has even parity , Which jump is taken
JP
JPE
JNP
both JP and JPE
In direct addressing the memory address given in the instruction is
Question # 46
When a large number is subtracted from a smaller number, a borrow is needed; in this case which flag will be set
ZF
CF
SF
OF
Question # 47
The extension of assembly languague file is
.doc
.com
.lst
.asm
Question # 48
Assembly languague is not a low level language.
True
False
Question # 49
The basic function of register is to
Hold the operand
Hold the operator
Hold both the operator and operand
None of the given
Question # 50
All the addressing mechanisms in iAPX88 return a number called _____________ address.
Effective address
Physical address
Direct address
None of the given
Question # 51
BP by default associated with
CS
IP
SS
SP
Question # 52
SHL and SAL are same
True
False
Question # 53
we can not Subrtace index register from the base register( bx-si )in assemlby language
True
False
Question # 54
Group of bits processor uses to inform memory which element to read/write is collectively known as
Control bus
Data bus
Address bus
RAM
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