CSRU 3595 Operating Systems                                                                             Dept. of Computer & Info Sciences
Fall 2008                                                                                                                  C. Schweikert

Lab Assignment #5 (Memory Assignment)
Due: Friday, November 21
 

Chapter 8: Main Memory

Programming Problem 8.28

Assume that a system has a 32-bit virtual address with a 4-KB page size. Write a C program that is passed a virtual address (in decimal) on the command line and have it output the page number and offset for the given address. As an example, your program would run as follows:

    ./a.out 19986

Your program would output:

    The address 19986 contains:
    page number = 4
    offset = 3602

Writing this program will require using the appropriate data type to store 32 bits, for example: long unsigned int.

Hints for program.

• You will utilize command line arguments, which you did in Lab #1. Remember to include an error statement if the user does not input an address.
• How many bytes are in a 4-KB page? (1 KB in this case is 2¹⁰ bytes)