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Question: (15 Marks)

Write a TSR program in C that will clear all the contents of the screen and print your VU ID and Name (BC0000000-Name) at the center of the video text memory available at 0xB8000000 whenever Alt+Ctrl+D combination is pressed from keyboard. Note that you have to take the backup of the contents of video text memory before clearing the screen. And, whenever Alt+Ctrl+R combination is pressed from the keyboard, all the contents of video text memory should be restored.

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 cs609@vu.edu.pk.

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Replies to This Discussion

Lets start discussion

and at last no one here to discuss this assignment 

is ki to kch smjh hi nhi a rhi

koi btaye ga is assignment k baray may

Drop Box with Turbo C++ 

aoa students...

when I run my code in borlandc softwre then two errors occure: 1. unable to open include file 'dos.h'.

2. unable to open include file 'bios.h' . 

plzzz guide me.

what is borlandc sofware

ye bc.exe kia he

mujhay code de dain plz


aoa students...

when I run my code in borlandc softwre then two errors occure:

1. unable to open include file 'dos.h'.

2. unable to open include file 'bios.h' . 

plzzz guide me.

go to following link


and set  INCLUDE AND LIB directories path


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