SS.Size Get Status
From NitrOS-9
Gets the current file size on RBF-supported devices only.
| Entry Conditions | |
| A | path number |
| B | SS.Size ($02) |
| Exit Conditions | |
| X | most significant 16 bits of the current file size |
| U | least significant 16 bits of the current file size |
| Error Output | |
| CC | carry set on error |
| B | error code |
