| 00155 | 0361 00 4 00532 | 109 | ACL | CHKSUM,4 COMPUTE THE CHECK SUM FOR RECORD | ||
| 00157 | 0322 00 0 00532 | 111 | ERA | CHKSUM COMPARE WITH THE CHECKSUM ON TAPE | ||
| 00235 | 0560 00 0 00532 | 168 | LDQ | CHKSUM PICK UP WORD READ IN | ||
| 00243 | 0322 00 0 00532 | 174 | ERA | CHKSUM SUBSTRACT CHECK SUMS | ||
| 00244 | 0602 00 0 00532 | 175 | SLW | CHKSUM STORE DIFFERECE | ||
| 00253 | 0520 00 0 00532 | 182 | ZET | CHKSUM SKIP IF CHECK SUMS AGREE | ||
| 00274 | −1 00001 0 00532 | 201 | RTIOC | IOCT | CHKSUM,,1 BRING IN 1 WORD | |
| 00533 | 386 | RTRX | SYN | CHKSUM+1 PROTECTED STORAGE | ||
| 00534 | 387 | RTADR | SYN | CHKSUM+2 | ||
| 00535 | 388 | RTLCH | SYN | CHKSUM+3 | ||
| 00536 | 389 | RTIOU | SYN | CHKSUM+4 | ||
| 00366 | 390 | BSRECL | EQU | CHKSUM−BOTTOM LENGTH OF BOOTSTRAP RECORD | ||
| 00567 | 0602 00 0 00532 | 417 | SLW | CHKSUM STOE IN CHECK SUM CELL | ||
| 00632 | 0 00001 0 00532 | 455 | WTIOD | IOCD | CHKSUM,,1 WRITE OUT CHECK SUM |