After successful assembling session, the Macro Assembler generates a listing file containing each assembly instruction with their associated hexadecimal code. This file is always generated when the -L: Generate a listing file assembler option is activated (even when the Macro Assembler generates directly an absolute file). This file is written to the directory given in the TEXTPATH: Text file path.environment variable. If that variable contains more than one path, the listing file is written in the first directory given; if this variable is not set at all, the listing file is written in the directory the source file was found. Listing files always get the *.lst extension. The format of the listing file is described in the Assembler Listing File chapter.