CS 2734 Computer Organization II

Laboratory 5 [2/17; 2/19] Automatic and Static Variables

This laboratory explores representation of static and automatic variables.

Write a Sparc function to do the following:

    int b[] = {10, -1, 7, 4, 3};

    int sumit(int a[]) 
    { 
       int c[5]; 
       int i; 

       for (i = 0; i < 5; i++)   {
           c[i] = a[i+1] - i + b[i];
           a[i] = 2*i + c[i];
       }
       return 0; 
    }

Assume the address of a is in register i0. Allocate c on the stack and b as a static initialized variable.

Write a C main program to call sumit. The calling program should output a before and after the call to sumit. Input the values of a from a file whose name is passed as a command line argument to the program. Use a makefile. Hand in all source code and your makefile when your get the lab checked off.
Download my.data to test your program.
You may use an array which is an automatic variable of size 10 in the main program.
For checkoff, you must demonstrate your program in action. Hand in hardcopies of all source code and your makefile when you get the lab checked off.

Revision Date: 2/12/97 1:30 p.m.