ACT apricot - Page 264

MICROSCREEN
Some of the standard ASCII control codes are also
supported:
Backspace - Character 8
Move the cursor BACK one position
Linefeed - Character 10
If the cursor is on the first line, it is moved down to the
next line, otherwise a scroll UP takes place, and the
bottom line is cleared.
Vertab - Character 11
As linefeed
Formfeed - Character 12
As linefeed
Return - Character 13
Move the cursor to the start of the current line.
A standard 256
character set is supplied, containing all
the standard ASCII, and some extra graphics characters.
Characters 0
to 31
Characters
32 to 127
Characters 128
to 159
Characters 160 to.255
SYSTEMS INTEREST
Non printing control codes
Standard
ASCII character set
Special graphics characters
Repeat of
the ASCII set
The MicroScreen is accessed by the BIOS as a serial
device.
The keyboard queue buffer is used for all
communication to the MicroScreen, which is an output
device only.