88     int i, checksum = (file_size >> 16) + file_size;  in start_read()  local
92       checksum += int16;  in start_read()
96     if (checksum & 0xffff)  in start_read()
126   int checksum = (VERSION_ >> 16) + VERSION_;  in start_write()  local
127   checksum += t->tm_year + 1900;  in start_write()
128   checksum += ((t->tm_mon + 1) << 8) + t->tm_mday;  in start_write()
129   checksum += (t->tm_hour << 8) + t->tm_min;  in start_write()
131     checksum += (id[i] << 8) + id[i + 1];  in start_write()
132   checksum += encoding;  in start_write()
135       || lsx_writesw(ft, -checksum)  in start_write()
168     int checksum;  in stop_write()  local
171       checksum = (file_size >> 16) + file_size - int16;  in stop_write()
175           checksum += int16;  in stop_write()
179           lsx_writesw(ft, -checksum);  in stop_write()