Curriculum
This System Software program demonstrates a sequence of instructions for SIC/XE to clear a 20 byte string to all blank values.
| Line Number | Code | Description |
|---|---|---|
| 1 | LDX ZERO | |
| 2 | LOOP LDCH BLANK | |
| 3 | STCH STR1,X | |
| 4 | TIX TWENTY | |
| 5 | JLT LOOP | |
| 6 | STR1 RESW 20 | |
| 7 | BLANK BYTE C ‘ ‘ | |
| 8 | ZERO WORD 0 | |
| 9 | TWENTY WORD 20 |