Texas Instruments TravelMate 4000M User Reference Manual page 272

; — (semicolon) in column 0 precedes a comment line,
which is ignored by the program. You can insert any
number of comment lines for your own information;
comment lines are not displayed in the Help screens.
You also can use the ; (semicolon) character anywhere
on a menu color line after the :C X Y characters when
preceded by a space character; for example,
: C 1 0f ; this is a sample color comment line.
Column length of the subject name box is 13 characters
maximum; the description box is 52 characters maximum.
Sample Help File
The following figure shows a sample help subject entry,
with comment lines explaining the command lines.
Creating Help Displays
Creating Help Displays I-3