Each file operation which can be performed by the File Handler is identified by a two-byte operation code.
There are two types of operation code:
| Type of Operation Code | Description |
|---|---|
| Standard operation codes | The codes contain x"FA" in the most significant byte. The least significant byte indicates the specific operation. |
| Special operation codes | The codes contain x"00" in the most significant byte. The least significant byte indicates the specific operation. |
Full lists of standard and special operation codes and links to detailed information are provided in the topics Standard Operation Codes - Overview and Special Operation Codes - Overview.