Question 1

Identify valid suffix characters used in integer constants.

Accepted Answer

h, q, o, d, b, r, t, y.

Question 2

Is A5h a valid hexadecimal constant?

Accepted Answer

No

Question 3

Does the multiplication operator * have a higher precedence than the division operator / in integer expressions?

Accepted Answer

No

Question 4

Write a constant expression that divides 10 by 3 and returns the integer remainder.

Accepted Answer

Expression: 10 MOD 3.

Question 5

Show an example of a valid real number constant with an exponent.

Accepted Answer

Real number constant: +3.5E-02.

Question 6

Must string constants be enclosed in single quotes?

Accepted Answer

No, they can also be enclosed in double quotes

Question 7

Reserved words can be instruction mnemonics, attributes, operators, predefined symbols, and __________.

Accepted Answer

Directives

Question 8

What is the maximum length of an identifier?

Accepted Answer

247 characters

Question 9

An identifier cannot begin with a numeric digit.

Accepted Answer

True

Question 10

Assembly language identifiers are (by default) case insensitive.

Accepted Answer

True

Question 11

Assembler directives execute at runtime.

Accepted Answer

False

Question 12

Assembler directives can be written in any combination of uppercase and lowercase letters.

Accepted Answer

True

Question 13

Name the four basic parts of an assembly language instruction.

Accepted Answer

Label, mnemonic, operand(s), comment.

Question 14

MOV is an example of an instruction mnemonic.

Accepted Answer

True

Question 15

A code label is followed by a colon (:), but a data label does not have a colon.

Accepted Answer

True

Question 16

Show an example of a block comment.

Accepted Answer

Code example: Comment ! This is a comment This is also a comment !

Question 17

Why would it not be a good idea to use numeric addresses when writing instructions that access variables?

Accepted Answer

Because the addresses coded in the instructions would have to be updated whenever new variables were inserted before existing ones.

Question 18

In the AddSub program (Section 3.2), what is the meaning of the INCLUDE directive?

Accepted Answer

The INCLUDE directive copies necessary definitions and setup information from the Irvine32.inc text file. The data from this file is inserted into the data stream read by the assembler.

Question 19

In the AddSub program, what does the .CODE directive identify?

Accepted Answer

Marks the beginning of the code segment.

Question 20

What are the names of the segments in the AddSub program?

Accepted Answer

code, data, and stack.

Question 21

In the AddSub program, how are the CPU registers displayed?

Accepted Answer

By calling the DumpRegs procedure.

Question 22

In the AddSub program, which statement halts the program?

Accepted Answer

The exit statement

Question 23

Which directive begins a procedure?

Accepted Answer

The PROC directive

Question 24

Which directive ends a procedure?

Accepted Answer

The ENDP directive

Question 25

What is the purpose of the identifier in the END statement?

Accepted Answer

It marks the last line of the program to be assembled, and the label next to END identifies the program\'s entry point (where execution begins).

Question 26

What does the PROTO directive do?

Accepted Answer

PROTO declares the name of a procedure that is called by the current program.

Question 27

What types of files are produced by the assembler?

Accepted Answer

Object .OBJ and listing .LST files.

Question 28

The linker extracts assembled procedures from the link library and inserts them in the executable program.

Accepted Answer

True

Question 29

When a program\'s source code is modified, it must be assembled and linked again before it can be executed with the changes.

Accepted Answer

True

Question 30

Which operating system component reads and executes programs?

Accepted Answer

Loader

Question 31

What types of files is produced by the linker?

Accepted Answer

Executable .EXE

Question 32

Create an uninitialized data declaration for a 16-bit signed integer.

Accepted Answer

var1 SWORD ?

Question 33

Create an uninitialized data declaration for an 8-bit unsigned integer.

Accepted Answer

var2 BYTE ?

Question 34

Create an uninitialized data declaration for an 8-bit signed integer.

Accepted Answer

var3 SBYTE ?

Question 35

Create an uninitialized data declaration for a 64-bit integer.

Accepted Answer

var4 QWORD ?

Question 36

Which data type can hold a 32-bit signed integer?

Accepted Answer

SDWORD

Question 37

Declare a 32-bit signed integer variable and initialize it with the smallest possible negative decimal value.

Accepted Answer

var5 SDWORD -2147483648

Question 38

Declare an unsigned 16-bit integer variable named wArray that uses three initializers.

Accepted Answer

wArray WORD 10, 20, 30

Question 39

Declare a string variable containing the name of your favorite color. Initialize it as a nullterminated string.

Accepted Answer

myColor BYTE \"blue\", 0

Question 40

Declare an uninitialized array of 50 unsigned doublewords named dArray.

Accepted Answer

dArray DWORD 50 DUP(?)

Question 41

Declare a string variable containing the word \"TEST\" repeated 500 times.

Accepted Answer

myTestString BYTE 500 DUP(\"TEST\")

Question 42

Declare an array of 20 unsigned bytes named bArray and initialize all elements to zero.

Accepted Answer

bArray BYTE 20 DUP(0)

Question 43

Show the order of individual bytes in memory (lowest to highest) for the following doubleword variable: val1 DWORD 87654321h

Accepted Answer

21h, 43h, 65h, 87h

Question 44

Declare a symbolic constant using the equal-sign directive that contains the ASCII code (08h) for the Backspace key.

Accepted Answer

BACKSPACE = 08h

Question 45

Declare a symbolic constant named SecondsInDay using the equal-sign directive and assign it an arithmetic expression that calculates the number of seconds in a 24-hour period.

Accepted Answer

SecondsInDay = 24 * 60 * 60

Question 46

Write a statement that causes the assembler to calculate the number of bytes in the following array, and assign the value to a symbolic constant named ArraySize: myArray WORD 20 DUP(?)

Accepted Answer

ArraySize = ($ - myArray)

Question 47

Show how to calculate the number of elements in the following array, and assign the value to a symbolic constant named ArraySize: myArray DWORD 30 DUP(?)

Accepted Answer

ArraySize =($ - myArray) / TYPE DWORD

Question 48

Use a TEXTEQU expression to redefine \"PROC\" as \"PROCEDURE.\"

Accepted Answer

PROCEDURE TEXTEQU

Question 49

Use TEXTEQU to create a symbol named Sample for a string constant, and then use the symbol when defining a string variable named MyString.

Accepted Answer

Code example: Sample TEXTEQU  MyString BYTE Sample

Question 50

Use TEXTEQU to assign the symbol SetupESI to the following line of code: mov esi,OFFSET myArray

Accepted Answer

SetupESI TEXTEQU

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