The character string denoted by title_string is printed as a heading at the top of each page of the source and object section of the assembler listing. The heading is printed beginning on the page in the listing that follows the page on which the TITLE instruction is specified. A new heading is printed each time a new TITLE instruction occurs in the source module. If the TITLE instruction is the first instruction in the source module the heading is printed on the first page of the listing.

When a TITLE instruction immediately follows an EJECT instruction, the assembler changes the title but does not perform an additional page-eject.