Line-number information from the C source program.
[Syntax]
| 
 
Symbol field 
 | 
 
Mnemonic field 
 | 
 
Operand field 
 | 
 
Comment field 
 | 
  
 | 
.line  
 | 
["file-name",] line-number 
 | 
[; comment] 
 | 
 
[Function]
-  | The .func directive is compiler debugging information.  | 
 
[Description]
-  | Modifies the line numbers and filenames referenced during debugging.  | 
 
-  | The line numbers and filenames in the source program are not updated between the first .line directive and the next one.  | 
 
-  | If the filename is omitted, then only the line number is changed.  | 
 
-  | This is the line-number information of the C source program that the compiler outputs. A change made in the assembly source file is invalid.  |