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Assignment No. 01
Semester: Fall  2016

CS609 – System Programming



Total Marks: 15


Due Date: 18/11/2016


Uploading instructions:


  • Your assignment must be in .c format. (Any other formats like scan images, Word, PDF, Zip, rar, bmp, etc will not be accepted).
  • Save your assignment with your ID (e.g. bc020200786.c).
  • No assignment will be accepted through email.


Rules for Marking:


It should be clear that your assignment will not get any credit if:


  • The assignment is submitted after due date.
  • The submitted assignment does not open, execute or file is corrupted.
  • Your assignment is copied from internet, handouts or from any other student

      (Strict disciplinary action will be taken in this case).




Question No1 :     (05 Marks)


Explain four  lines the Followed code (only one lines answer per line)


Unsigned int far * scr = 0xb8000000;// Line 1

Void main ()                     //Line 2


( *scr) = 0x7074;             // Line 3

(*(src+2)) =0770;            //Line 4




Question No2 :     (10 Marks)


Write a TSR program that will clear all the contents of the screen and write your ( SYSTEM PROGRAMMING) anywhere on screen of the video text memory available at 0xB8000000 whenever interrupt 8 is invoked.  Also, note that the fore color of SYSTEM PROGRAMMING should be white and back color should be blue.



NOTE: If you are feeling any difficulty while making your program a TSR program then it is recommended to view the “How_to_generate_COM_file_and_Execute_TSR_Program.ppt” file available at download section of CS609. Do not put any query on MDB about this assignment, if you have any query then email at






Deadline: Your assignment must be uploaded/submitted on or before 18th November 2016.



Views: 8463

Replies to This Discussion

hey dude how to fix this problem in ur code ("declaration is not allowed" warning : nonportable pointer conversion)
plz fix this

1 hi file m

2nd question key coding kea ha bhai

cs690 ka solution plz baban dain ap

brother 2nd question ka code kea ha

first question ka ans kiya hai bhai

please upload complete solution !


KOi solution hi upload kr de

Sample Output


Dear student,

  As many student send two .c files zip in one folder you can also send like this,

Dear Student,

In Dosbox, first of all you need to mount the drive. For example, if your BORLANDC folder is available in D drive then follow the given steps:

1)         mount D D:\

2)         D:

3)         D:\> cd borlandc\bin

4)         Now, Run the following command.

5)         D:\borlandc\bin>bc.exe

you generate the COM file by executing the following command in DOSBox?


(Also, make sure that your BORLNDC folder is available in drive D before executing this command.)



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