The .title directive identifies the output listing in which it appears with an optional symbolic name and an optional title string. If more than one .title directive is used, the last one encountered specifies the symbolic name and string. The symbolic name consists of any character up to the comma. Single quotation marks (') must appear at the beginning and end of the character string. A single quotation mark in the string is represented by two quotation marks ('').
Note: .title must appear as the first source line if the header of the first page is to contain symbol and string.