isqrt
ed = dx + dy == 0 ? 1: isqrt(dx * dx + dy * dy);
return (isqrt(dp / di));
cst->isqrt = (1UL<< FIX_POINT_BITS) * 7/10;
temp = (uint32_t) cst->isqrt * cst->isqrt;
temp = (cst->isqrt * temp) >> (FIX_POINT_BITS + FIX_POINT_BITS - 8);
cst->isqrt = temp;
uint16_t isqrt; /* last isqrt for control low */
if (target == 0 && ndirty * isqrt(howmany(nfreed + 1,
static u_int isqrt(u_int num);