.\" a test macro package
.\"
.\" .pp a simple paragraph part
.de pp
.sp
.ti +5
..
.\" .tl do titles
.de tl
.eh /%  CC310 USER MANUAL//CHAPTER \\$1/
.oh /CHAPTER \\$1//\\$2  %/
.fo //BY PHIL/
..
.\" set some things for the current file
.fl 2
.hl 2
.pl 30
.rm 55
.tl 4 "C SOURCE FILES"
.de oo
.br
.ti -60
OPTION
.br
.ti +5
\\$1
.if \\n$>1 \{\
.br
or
.ti +5
\\$1\\$2
.sp 1\}
.br
Where,
..