| Directive | Description |
| Align next datum to an address divisible by | |
| Add ASCII string to data segment | |
| Add zero-terminated ASCII string to data segment | |
| Add bytes to successively into segment | |
.data |
Start/continue data segment |
| Declare symbol as global (visible from other object files) | |
| Add half words to to segment | |
| Reserve bytes of free space in current segment | |
.text |
Start code segment |
| Add words to successively to current segment |