The syntax of SUBT is:

SUBT subtitle

where:

Use SUBT to place a subtitle at thetop of the pages of a listing file. Subtitles appear in the line below the titles. See TTL directive. If you want the subtitle to appear on the first page, the SUBT directive must be on the first line of the source file.

Use additional SUBT directives to change subtitles. Each new SUBT directive takes effect from the top of the next page.

		TTL 		First Title				; places a title on the first 
								; and subsequent pages of a 
								; listing file.
		SUBT 		First Subtitle				; places a subtitle on the 
								; second and subsequent pages 
								; of a listing file.
		AREA 		Example, CODE, READONLY