Commodore 128D - Using ALT Mode; Screen Enhancements

Screen
Enhancements
Using ALT Mode
ALT mode is a toggle function (that is, it can be switched between
ON and OFF.) The default value is OFF. This function allows the user
to send 8-bit codes to an application.
The default screen in CP/M 3.0 emulates an ADM31 terminal. The
following screen functions emulate ADM 3A operation, which is a
subset of ADM31 operation.
CTRLG Sound bell
CTRL H Cursor left
CTRLJ Cursor down
CTRL K Cursor up
CTRL L Cursor right
CTRL M Move cursor to start of current line (CR)
CTRL Z Home cursor and clear screen
ESC = RC Cursor position where R is the row location (with
values from space to 8) and C is the column loca
tion (next values from space to 0), referenced to
the status line
Additional functions in ADM31 mode include:
ESCT)
ESCt i
ESCY)
ESCy )
ESC:
ESC*
ESCQ
ESCW
ESCE
ESCR
Clear to end of line
Clear to end of screen
Home cursor and clear screen (including the
status line)
Insert character
Delete character
Insert line
Delete line
* ESC ESC ESC color* sets a screen color from a table of 16
color entries. (These are the same color values listed in Chapter
II, Section 6, Figure 6-2.) The color # will be set as follows:
20h to 2Fh physical character color
30h to 3Fh physical background color
40h to 4Fh physical border color (40 column only)
50h to 5Fh logical character color
60h to 6Fh logical background color
70h to 7Fh logical border color (40 column only)
NOTE: Physical and logical colors have the same default values.
225 USING CP/M MODE—Commodore Enhancements to CP/M 3.0