Here is the code for the C power example:

#include <stdio.h>

/*

power recursive

return x^y

*/

int power(int x,int y){

if (y==0) return 1;

if (y==1) return x;

return( x*power(x,y-1) );

}

/*

power not recursive

return x^y

*/

int power2(int x,int y) {

if (y==0) return 1;

if (y==1) return x;

int result,i;

for (i=0,result=1;i<y;i++) {

result = result * x;

}

return(result);

}

int main() {

int x,y;

do{

printf("Give integer X from 1 to 20 : ");

scanf("%d",&x);

}

while( x>20 || x<1 );

do{

printf("Give integer Y from 0 to 5 : ");

scanf("%d",&y);

}

while( x>20 || x<1 );

printf("%d raised to %d gives %d \n",x,y,power(x,y));

printf("%d raised to %d gives %d ",x,y,power2(x,y));

exit (0);

}

The output is like that:

Please give integer X from 1 to 20: 2

Please give integer Y from 0 to 5: 5

X raised to Y gives: 32

You may want to see Simple MIPS counter or MIPS bubble sort. Del.icio.us

## 1 comment:

plz tell us modification in an existing code if we want to calculate power of unsigned number and print result using shift operator

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