Modifiers For Select Stacker (K) Instruction
| BCD Character | Unit | Meaning |
|---|---|---|
| Blank | 1401 | set program activity recording
at BBB only if A is, dd |
| 1 | 1402 | select last card read to stacker 1 if within 10 ms |
| 2 | 1402 | select last card read to stacker 8/2 if within 10 ms |
| 4 | 1402 | select previous card punched to stacker 4 |
| 8 | 1402 | select previous card punched to stacker 8/2 |
| = or # | 1444 | select previous card punched to stacker 2 |
| L | 1009 | operate in load mode |
| $ | 1402 | overlap on |
| A | 1009 | suppress 3-second alarm |
| C | DDC | read request |
| D | 1009 | set direction to receive |
| DDC | write request | |
| E | 1009 | set direction to transmit |
| DDC | reset | |
| F | 1009 | send EOF |
| . | 1402 | overlap off |
| ) | 1402 | reset overlap |
Read more about this topic: IBM 1401
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