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Assignment No. 04
Semester: Fall 2012

CS401: Computer Architecture and Assembly Language Programming

Due Date:
Your assignment must be uploaded/submitted before or on 28 January, 2013.

Uploading instructions:

Please view the Assignment Submission Process document provided to you by the Virtual University for uploading assignments.

• Assignment should be in .doc format.
• Save your assignment with your ID (e.g. bx020200786.doc).
• Assignment submission through email is highly discouraged.

                                                                                                                                
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 file is corrupted.
• The assignment is copied.

Note:

Your answer must follow the below given specifications. You will be assigned zero marks if you do not follow these instructions.

• Font style: “Times New Roman”
• Font color: “Black”
• Font size: “12”
• Bold for heading only.
• Font in Italic is not allowed at all.
• No formatting or bullets are allowed to use.

Objective

The objective of this assignment is to enhance your knowledge about;

• Debugging interrupts

Question: 1
A debugger or debugging tool is basically software that is used to test/debug programs. It has the ability to fetch an instruction, decode and execute that instruction. After each and every instruction a debugger can give control back to the user through its user interface or it can have ability to have a breakeven point.

Suppose you are assigned to write a code that will debug an interrupts using internal support provided through assembly language. So you have to answer the following question that your code/program is justifying the basic objectives that a debugger should have.

1.      Which interrupts in assembly language programming can be used in debugging an interrupt and how their functionality matches the debugging process?        

                                                                                                                      (Marks: 10)

2.      How your code will counter fault and trap exception?                                                                                                                                                        (Marks: 5)

3.      Which flag will be used in debugging an interrupt and how?                                                                                                                                              (Marks: 5)