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It should be clear that your assignment would not get any credit if:
  • The assignment is submitted after the due date.
  • The submitted assignment does not open or file is corrupt.
  • Strict action will be taken if submitted solution is copied from any other student or from the internet.

You should concern the recommended books to clarify your
concepts as handouts are not sufficient.
You are supposed to submit your assignment in .doc or docx format.
Any other formats like scan images, PDF, zip, rar, ppt and bmp etc. will not be accepted.
Topic Covered:
·         Interrupt Priority and Nested Interrupts

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If you people find any mistake or confusion in assignment (Question statement), please consult with your instructor before the deadline. After the deadline no queries will be entertained in this regard.
For any query, feel free to email at cs501@vu.edu.pk

Q. No. 1.                                                                                                                     Marks 10
The performance of a 2MHz CPU is calculated as 2 MIPS. Data Transmission speed of a scanner is calculated as 9600 bytes per second. Direct Memory Access (DMA) controller transfers 16-bit data from scanner to memory in one clock cycle using cycle stealing. If such a controller is attached with a system, then calculate the percentage of speed dropped by using DMA controller.

Q. No. 2.                                                                                                                     Marks 10
Identify the category of the following 8086 Interrupts. Also specify the sub categories if any.
1.      Mouse interrupt
2.      Divide by zero
3.      Trap
4.      Non-Maskable
5.      Breakpoint
6.      Stack overflow
7.      Mode Switching
8.      Invalid opcode
9.      File Deletion
10.  Arithmetic overflows


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