M3

Question 1

refers to the way in which the operand of an instruction is specified.

Answer 1

Addressing modes

Question 2

specifies a rule for interpreting or modifying the address field of the
instruction before the operand is actually executed.

Answer 2

Addressing modes

Question 3

is an 8 bit or 16 bit immediate value given in the instruction.

Answer 3

Displacement

Question 4

is an addressing mode wherein the operand is specified in the instruction
itself.

Answer 4

implied mode

Question 5

this mode the data is 8 bits or 16 bits long and data is the part of instruction.

Answer 5

Implied mode

Question 6

In this mode, the operand is placed in one of 8 bit or 16 bit general purpose
registers.

Answer 6

Register mode.

Question 7

In this, addressing the operand’s offset is placed in any one of the registers BX,BP,SI,DI as specified in the instruction

Answer 7

Register Indirect mode.

Question 8

After accessing the operand, the contents of this register are
automatically incremented to point to the next consecutive memory location.(R1)+

Answer 8

Auto Indexed increment.

Question 9

Before accessing the operand, the contents of this register are
automatically decremented to point to the previous consecutive memory location. –(R1)

Answer 9

Auto indexed decrement.

Question 10

is also referred to as Absolute addressing Mode.

Answer 10

Direct addressing

Question 11

is also referred to as Direct addressing.

Answer 11

Absolute addressing Mode

Question 12

In this addressing mode the 16 bit effective address of the

data is the part of the instruction.

Answer 12

Absolute addressing Mode.

Question 13

In this mode effective address is in the register, and corresponding
register name will be maintained in the address field of an instruction.

Answer 13

register Indirect.

Question 14

In this mode effective address is in the memory, and corresponding
memory address will be maintained in the address field of an instruction.

Answer 14

Memory Indirect.

Question 15

In this mode effective address is obtained by adding
displacement to PC

Answer 15

PC relative addressing mode.

Question 16

In this mode effective address is obtained by adding base

register value to address field value.

Answer 16

Base register addressing mode.

Question 17

X in the immediate mode is that the range of constants are restricted by size of
address field.

Answer 17

Limitation

Question 18

are designed with implied addressing mode

Answer 18

Zero address instruction

Question 19

Addressing modes for 8086 instructions are divided into X categories

Answer 19

2

Question 20

The X provide flexible access to memory, allowing you to

easily access variables, arrays, records, pointers, and other complex data types.

Answer 20

8086 memory addressing modes

Question 21

The key to good assembly language programming is the proper use of X

Answer 21

memory addressing

modes.

Question 22

The term X refers to the way in which the operand of an instruction is
specified

Answer 22

addressing modes

Question 23

specifies a rule for interpreting or modifying the address field of the
instruction before the operand is actually executed

Answer 23

addressing mode

Question 24

Two categories of addressing modes for 8086 instructions.

Answer 24

Addressing modes for data and Addressing modes for branch

Question 25

Two parts of an assembly language program instruction

Answer 25

Opcode and Operand

Question 26

Two components of the memory address of an operand?

Answer 26

Starting address and offset

Question 27

In X addressing the operand is specified in the instruction itself.

Answer 27

implied

Question 28

is the symbol used for Absolute addressing Mode?

Answer 28

[]

Question 29

X memory reference is required to access the data in a memory indirect mode.

Answer 29

Two

Question 30

In a X mode, one register reference, one memory reference is required to access the data.

Answer 30

Register indirect

Question 31

In this addressing mode, the operand’s offset is sum of the | content of a base register BX and an index register SI.

Answer 31

Based index addressing.

Question 32

provides a powerful memory management mechanism.

Answer 32

Segmentation

Question 33

allows programmers to partition their programs into modules that operate independently of one another.

Answer 33

Segmentation

Question 34

provides a way to easily implement object-oriented programs

Answer 34

Segments

Question 35

allows two processes to easily share data.

Answer 35

Segments

Question 36

is the simplest partitioning method.

Answer 36

Fixed Partitioning

Question 37

is a type of partitioning wherein the main memory portion for user applications is initially a single contiguous block.

Answer 37

Dynamic

Question 38

is a unique location in primary storage (or main memory) that serves as a reference point for other memory locations called absolute addresses.

Answer 38

Base Address

Question 39

is identified by a segment (its base address) and an offset

Answer 39

Logical Address

Question 40

identifies the distance in bytes that the storage location of interest resides from this starting address.

Answer 40

Offset

Question 41

is an address that is generated by CPU while a program is running.

Answer 41

Logical Address

Question 42

is an address that does not exist physically, therefore, it is also known as Virtual

Answer 42

Logical Address

Question 43

is used as a reference to access the physical memory location by CPU

Answer 43

Logical Address

Question 44

is the set of all logical addresses generated by a program’s perspective.

Answer 44

Logical address space

Question 45

is used for mapping logical address to its corresponding physical address

Answer 45

Memory-Management Unit

Question 46

identifies a physical location of required data in a memory.

Answer 46

Physical Address

Question 47

is used for all physical addresses corresponding to the logical addresses in a Logical address space.

Answer 47

Physical Address Space

Question 48

is an address generated by the CPU.

Answer 48

Logical Address

Question 49

is a memory management scheme that eliminates the need for contiguous allocation of physical memory.

Answer 49

Paging

Question 50

The mapping from virtual to physical address is done | by this hardware device.

Answer 50

memory management unit (MMU).

Question 51

is the mapping from virtual to physical address.

Answer 51

paging technique

Question 52

is conceptually divided into a number of fixed-size blocks, called frames

Answer 52

The Physical Address Space

Question 53

is also divided into fixed-size blocks, called Pages

Answer 53

The Logical address Space

Question 54

refers to the number of bits required to represent the pages in Logical Address Space.

Answer 54

Page Number

Question 55

is the number of bits required to represent particular word in a page

Answer 55

Offset

Question 56

is the number of bits required to represent the frame of Physical Address Space

Answer 56

Frame number

Question 57

is the number of bits required to represent particular word in a frame

Answer 57

Frame offset