| Name | Contents | Type |
| @ | PC value | EQU |
| _PI | Fixed point ¶ | EQU |
| _RS | _RS counter | SET |
| _NARG | Number of arguments passed to macro | EQU |
| __LINE__ | The current linenumber | EQU |
| __FILE__ | The current filename | EQUS |
| __DATE__ | Todays date | EQUS |
| __TIME__ | The current time | EQUS |
Last updated 21 June 1997 by Carsten Sorensen