The Alpha edition of Visual C++ produces both assembly language source (.ASM) files and machine code (.COD) files.
The following table shows the available /Fa and /FA options:
| Option | Description |
| /Fa | Treated as if /FAa specified |
| /Fa filename | Generates .ASM file |
| /FA | Treated as if /FAc specified |
| /FAa | Generates .ASM file |
| /FAc or /FAac | Create machine code (.COD) file |
| /FAcs or /FAacs | Create a combined source and machine code listing |
| /FAs or /FAas | Treated as if /FAcs specified |
If you add /Fa or /Fa filename to any of the /FA options, the result only determines the name of the output file.