Assignment No. 3
Semester Fall 2015
Total Marks: 20
Due Date: 20/01/2016
The assignment has been designed to enhance your knowledge about Software Interrupts and Real Time Interrupts and Hardware Interfacing.
Please read the following instructions carefully before solving & submitting assignment:
For any query about the assignment, contact only at CS401@vu.edu.pk
Do not post queries related to assignment on MDB.
Question: 1 [20 Marks]
Suppose we have interfaced 2 different AC devices with our system’s parallel port and want those to be controlled using 2 different keyboard keys. You have to read and write the parallel port’s data block using IN and OUT instructions.
You have to write an assembly code that will read the device status (read the parallel port) and on the basis of that status, it will turn the specific device ON or OFF depending upon your input provided through keyboard as shown in Table: 1.
In your assembly code, you have to read an input character (ASCII code only) from keyboard and then have to send a specific HEX value to parallel port to turn ON or OFF the specific device depend upon the current state.
For example :
If a device is ON, by pressing the assigned key the device should be set to OFF or vice versa. For example, if you have pressed “M” to switch ON the Microwave then by pressing the key “M” again will switch OFF the Microwave as shown in Table: 2.
You have to write a code in an assembly language using ASCII standard that take an input character from keyboard (Capital letters: M, L and Q) and on the basis of these characters, you have to control attached AC devices via the parallel port using IN and OUT instructions.
Note : You will submit your code written in Word File.
+ http://bit.ly/vucodes (Link for Assignments, GDBs & Online Quizzes Solution)
+ http://bit.ly/papersvu (Link for Past Papers, Solved MCQs, Short Notes & More)+ Click Here to Search (Looking For something at vustudents.ning.com?) + Click Here To Join (Our facebook study Group)
CS401 Assignment ka solution hay kisi k pass ?
is mn agin and again .... :(
plzzzzz guys share correct solution...i tried but fail
dekhty hain aj kon duen leta hai assignment upload kar k...........
error again :(
No Error in the Assignment. I've checked it.
but where is the file of solution??
Please, send in word document, Thanks
All the words are separate, that's why I was asking for .doc file.
Anyhow, thanks for the solution