Lines Matching defs:sum
16 register long sum; /* assumes long == 32 bits */
21 * Our algorithm is simple, using a 32-bit accumulator (sum),
26 sum = 0;
28 sum += *ptr++;
36 sum += oddbyte;
43 sum = (sum >> 16) + (sum & 0xffff); /* add high-16 to low-16 */
44 sum += (sum >> 16); /* add carry */
45 answer = ~sum; /* ones-complement, then truncate to 16 bits */