In the following code, we have omitted the definitions of constants M and N:

We compiled this code for particular values of M and N. The compiler optimized the multiplication and division using the methods we have discussed. The following is a translation of the generated machine code back into C:

What are the values of M and N?

#define M #define N /* Mystery number 1 */ /* Mystery number 2 */ int arith (int x, int y) { int result = 0; result = x*M + y/N; /* M and N are mystery numbers. */ return result; }