Installation guide

Appendix A: Control Sequence Codes OS-9 V2.4 on EUROCOM-17
56 Software Manual
• <ESC> [ <n> M Delete Line (DL)
Takes one parameter, <n> (default 1). Delete <n> beginning with the
current line. The portion of the screen from the current line inclusive to
the bottom is scrolled upwards by <n> lines. The <n> new lines scrolling
onto the bottom of the screen are filled with spaces. The <n> old lines
beginning at the cursor line are deleted. The position of the cursor on the
screen is unchanged.
• <ESC> [ <sel> m Select Graphic Rendition (SGR)
Takes one parameter, <sel> (default 0). Invokes the graphic rendition
specified by the parameter. All following printing characters in the data
stream are rendered according to the parameter until the next occurrence
of this escape sequence. Only two graphic renditions are defined.
0 Normal rendition
7 Reverse video mode on
• <ESC> ? <sel> h
Takes one parameter, <sel>. Turns on private feature specified by the
parameter. Only one private feature is defined.
25 Cursor On (visible)
• <ESC> ? <sel> l
Takes one parameter, <sel>. Turns off private feature specified by the
parameter. Only one private feature is defined.
25 Cursor Off (invisible)