Texas Instruments TMS320C54x User Manual page 384

Syntax
Description
Example
.file " filename "
The .file directive allows a debugger to map locations in memory back to lines
in a C source file. The filename is the name of the file that contains the original
C source program. The first 14 characters of the filename are significant.
You can also use the .file directive in assembly code to provide a name in the
file and improve program readability.
In the following example, the filename text.c contained the C source that pro-
duced this directive.
.file "text.c"
Supply a File Identifier
Symbolic Debugging Directives
.file
B-3