Laboratory Report Format

1 Title Page

1 University Name

2 Course Name

3 Semester

4 Experiment Number

5 Title of the Experiment

6 Your Name

7 Instructors Name

8 Date Submitted

9

2 Problem Statement Page(s)

1 Title

2 Objective

3 Problem Statement

4 System Diagram if any

5

3 Theoretical Solution Page(s)

1 Problem Analysis

2 Solution Steps

3 Flow-Chart as applicable

4 Assembly Language Program

5 Manual coding (machine language) as needed

6 Expected Results

7

4 Laboratory Simulation using DEBUG/MASM Page(s)

1 Description of setup steps

2 Description of Input values

3 Simulation results

4 Explanation of simulation results

5

5 Comparison of results of step 3 and 4 Page(s)

6

7 Conclusion/Discussion (Page)

 

 

 

 

 

For this lab assignment, complete the following:

1.   Open a command window (or DosBox), start DEBUG, and enter these commands:

a

mov dx,1

mov ax,6b48

mov bx,00ba

div bx

mov bl,3c

div bl

 

r

t 6

q

2.   Remember that a screenshot showing your DEBUG results should be included in your lab report.

3.   What is the final value in the AX register? Does it represent some combination of 8 and 20?

Hint: Remember that DEBUG only works with hexadecimal numbers.

4.   Explain how the calculations were performed in SUN.SCR. For example, were the numbers 93,000,000 and 186,000 represented anywhere? If not, why not?

5.   Open a command window (or DosBox), start DEBUG, and enter the following commands. What is the final value in AL? Explain why this is correct.

a 200

db 5

db 8

db 4

db 7

db 6

 

a 100

mov si,200

mov al,[si]

mov ah,0

mov bh,0

movbl,[si+1]

add ax,bx

movbl,[si+2]

add ax,bx

movbl,[si+3]

add ax,bx

movbl,[si+4]

add ax,bx

mov bl,5

div bl

 

r

t 0e

q

6.   Open a command window (or DosBox), start DEBUG, and enter the following commands.

a

mov al,20

cmp al,10

cmp al,20

 

r

 

t 3

q

7.   Discuss the relationship between the instructions and the results indicated by the flags.

Hint: See Example 4.7 beginning on page 102 in Chapter 4 of your assigned textbook.

8.   Repeat step 4 using these commands:

a

mov al,90

cmp al,80

cmp al,a0

 

r

t 3

q

9.   Download the program COMPARES.ASM. Assemble, link, and run.

10.   Choose four additional types of conditional jump instructions (see page 124 of your assigned textbook), and add the appropriate procedures to test the new jump instructions. Your final program will show the results of eight comparisons.

11.   Submit the final ASM file.