3. Briefly describe what f does void f(byte *yp, word *ap, int n) { register int x0, x1; register long yo, yl, dy; x0 = *ap++; yo = (long) *ap++ < < (8* (sizeof (y0)-sizeof*ap)); while (n-> 1) { x1 = *ap++; y1 = (long) *ap++ < < (8* (sizeof (y0)-sizeof*ap)); if (x1x0) { dy (yly0) / (x1) while (x0 < x1) { = - x0); yp [x0++] yo (8 (sizeof (y0) -sizeof*yp)); if (yp[x0-1]==0 && (x0-1 != 0)) yp[x0-1]=1; y0 + dy;