Introduction to Assembly Language

Question 1

Can improve the readability and clarity especially in assembly language where the purpose of a set of instructions is often ambiguous.

Answer 1

Comment

Question 2

Is a part of a program that is ignored by the assembler.

Answer 2

Comment

Question 3

What does a comment begin with?

Answer 3

semicolon (;)

Question 4

These are words in which the assembler assigns a special meaning and it cannot be used as identifiers.

Answer 4

Reserved Words

Question 5

Categories of Reserved Words

Answer 5

Instructions
Directives
Operators
Pre-defined Symbols

Question 6

These are statements that will be translated into machine language and executed by the computer.

Answer 6

Instructions

Question 7

Statements that give information to the assembler

Answer 7

Directives

Question 8

Are sometimes called pseudo-ops

Answer 8

Directives

Question 9

These are used at assembly time to affect the value of an operand

Answer 9

Operators

Question 10

These are symbols that return information to your program.

Answer 10

Pre-defined Symbols

Question 11

Is a user-defined name or variable that you apply in the program that is used as reference

Answer 11

Identifier

Question 12

Types of Identifiers

Answer 12

Name
Label

Question 13

It refers to the address of a data item

Answer 13

Name

Question 14

It refers to the address of an instruction or procedure

Answer 14

Label

Question 15

Two types of statements

Answer 15

Instructions
Directives

Question 16

Consists of a set of statements

Answer 16

Statement

Question 17

Maximum number of characters for a valid identifier

Answer 17

31 characters

Question 18

Maximum number of characters for a title

Answer 18

60 characters

Question 19

It tells the assembler to ignore all other request and to adopt the DOS segment sequence-stack, data and code

Answer 19

DOSSEG

Question 20

It specifies and initializes the memory model before defining any segment

Answer 20

MODEL

Question 21

What are the different memory models

Answer 21

Tiny, Small, Medium, Compact, Large

Question 22

Memory Model with 0 number of data and code segments

Answer 22

Tiny

Question 23

Memory Model with 1 data segment and 1 code segment

Answer 23

Small

Question 24

Memory Model with 1 data segment and more than 1 code segments

Answer 24

Medium

Question 25

Memory Model with more than 1 data segments and 1 code segment

Answer 25

Compact

Question 26

Memory Model with more than 1 data segments and more than 1 code segments

Answer 26

Large

Question 27

It defines the size of the stack

Answer 27

.STACK

Question 28

Default stack size

Answer 28

1024 bytes

Question 29

It defines and mark the beginning of data segment

Answer 29

.DATA

Question 29

It defines and marks the code segment which consists of a set of instructions

Answer 29

.CODE

Question 30

It is placed at the last line of the source code

Answer 30

END

Question 31

Is used for descriptive data such as person’s name or simply a message

Answer 31

String

Question 32

A string must end with a ____ symbol

Answer 32

Dollar ($)

Question 33

They are used to define arithmetic values and memory addresses

Answer 33

Numeric Constant