x86 Assembly Language Programming Labs

Computer Architecture & Assembly Language Programming
(CA296) Lab Page

Program Exercises are .ASM files. Open a command prompt and change directory to your
h:\ drive. Save the assembly files from the web to your h:\ drive.

Assemble the files using [ TASM <filename>.ASM ]
Link the files using [ TLINK <filename> ]

TO GET STARTED

Save this file Hello.asm in your H:\CA296 Directory
Make sure it has a .asm extension
Open it in Editplus The ASM Style File is here store it in H:\CA296 nasm.stx
Change Tools/Preferences in Editplus to add a syntax file for .ASM files.
Start a D6 Shell Command Prompt.. Menu
Type H: ......which will change to H Drive (H:>)
Type cd CA296 ......which will change to directory CA296 (H:\CA296>)
Type tasm Hello ......which assembles the file
Type tlink Hello ......which creates the executable
Type Hello ......runs the Hello executable

Reference list of Common Interrupts

Using INTERRUPTS write ASM files to perform the following

1. Print out a Character........ PR_CHAR.ASM
2. Read in a Character from keyboard and Print it back out
3. Read in a Character, wait for any keypress and print the character back out
4. Print a STRING
5. Print a character in the middle of the screen (X,Y Co-Ordinates)
6. Print a color character (Foreground Color, Background Color)
7. Read in a String of characters and Print the string back out.

Sample Progs

template.asm - hello.asm - STR_MOV.asm - strings.asm - Clr_Str2.asm - Addit.asm

Now should be able to create solutions to
1. Color Char moving from top of Screen to Bottom
2. Color Changing Char moving from top of Screen to Bottom
3. Repeat Char move Top to Bottom, JMP back up and move TOP to BOTTOM again
4. Color String moving from top of Screen to Bottom
5. Color String moving from Left to Right across screen
6. Color Char moving from Left to Right across screen
7. Color String moving Diagonally across screen
8. Get the String/Char to appear to bounce in ALL 7 previous examples
9. Repeat the above for a 3x3 Red Box
10. Change the box colour
11. Draw a White Box 9x9 with a RED Box 3x3 inside it
12. Make the Box in a Box from 11. Move based on keystrokes
13. Modify any of the MOVING programs so that the program exits when the x key is pressed. (i.e. While the char is moving across the screen)
14. Use the Mouse to control some object on the screen, (Color Change, Movement etc)