Installation guide

OS-9 V2.4 on EUROCOM-17 Appendix A: Control Sequence Codes
Software Manual 53
Appendix A: Control Sequence Codes
ANSI Standard Terminal Emulation
The sc17cons output character functions for the graphic interface
emulates a subset of a standard ANSI X3.64 terminal.
The sc17cons displays 24 lines of 80 ASCII characters per line (default
setting), with scrolling, (x, y) cursor addressability, and some other
control functions. The non-blinking block cursor marks the current line
and character position on the screen. When one of the ASCII characters
between $20 (space) and $FF are written to the screen by calling the
sc17cons (and the character is not part of an escape sequence), it is
displayed at the current cursor position and the cursor moves one position
to the right on the current line. If the cursor is already at the right edge of
the screen, it moves to the first character position on the next line. If the
cursor is already at the right edge of the screen on the bottom line, the
screen is scrolls up by one line, before moving the cursor to the first
character position on the next line.
Control Sequence Syntax
The sc17cons output function defines a number of control sequences
which may occur in its input. When such a sequence is written to the
sc17cons output function, it is not displayed on the screen, but effects
some control function as described below.
Some of the control sequences consist of a single character. The notation
<CTRL>-x
for some character x, represents a control character.
Other ANSI control sequences are of the form
CSI <params> <char> or < ESC> [ <params> char
Spaces are included only for readability. These characters must occur in
the given sequence without the intervening spaces.