ESC"
="
Moves the cursor to the specified position
on
the current screen.
In
the track-
ing mode, the screen window
is
moved so
that
the cursor
is
positioned
at
the
screen center
if
the position specified
is
outside the screen window. The track-
ing mode
is
turned
on
and
off
by pressing the shift and SCRN keys together,
or
by using the sequence ESC 149. The sequence for moving the cursor
is
as
follows:
Keyboard ESC,
=
,(m+
31),(n + 31)
Decimal
27,61,m+31,n+31
Hexadecimal
IB,3D,m+
IF,n+
IF
Here, m specifies the vertical cursor position and n specifies the horizontal po-
sition. The value
of
n should be greater
than
1 and less than the screen width
in the particular screen mode being used. The value
of
m should be greater than
1 and less than the number
of
lines in the virtual screen.
ESC
"C"
<
character>
Used to select one
of
the nine international character sets as follows:
The
<
character>
is
a letter which corresponds
to
the character sets
of
one
of
the following countries.
Keyboard Decimal
Hexadecimal
US ASCII ESC,C,U
27,67,85 IB,43,55
France ESC,C,F 27,67,70
IB,43,46
Germany
ESC,C,G 27,67,71 IB,43,47
England ESC,C,E
27,67,69 lB,43,45
Denmark ESC,C,D
27,67,68 IB,43,441
Sweden
ESC,C,W 27,67,87 IB,43,57
Italy ESC,C,I
27,67,73 IB,43,49
Spain ESC,C,S 27,67,83
IB,43,53
Norway ESC,C,N 27,67,78 IB,43,4E
This code sequence
is
equivalent to the BASIC OPTION COUNTRY command.
The
"country"
option
of
the CONFIG progrm can also be used to change the
full character set.
A-6
ESC
"P"
In screen modes 0,
1,
and 2 this escape sequence outputs the contents
of
the
screen window currently being displayed to a printer in ASCII format. In mode
3 it outputs the contents
of
the entire physical screen in bit image format.
It
duplicates the
COpy
command
of
BASIC or screen dump function obtained
by pressing the CTRL and PF5 key.
Keyboard
Decimal
Hexadecimal
ESC
"T"
ESC,P
27,80
IB,50
Clears the line currently containing the cursor from its present position to the
end
of
that
logical line.
Keyboard
Decimal
Hexadecimal
ESC
"Y"
ESC,T
27,84
lB,54
Clears the screen from the current position
of
the cursor to the end
of
the screen.
Keyboard
Decimal
Hexadecimal
ESC 123
ESC,Y
27,89
IB,59
Causes all characters to be displayed on the screen as blanks (the secret mode).
The secret mode
is
not active in the System Display.
Keyboard
Decimal
Hexadecimal
ESC,[
27,123
lB,7B
WARNING:
You should make sure that a program returns the user to normal non-
secret mode,
for
example with
an
error handling routine.
If
the user is
placed
in
immediate mode and the secret mode is still active, it is impossi-
ble to know what is happening. Also the reset button on the left
of
the
A-7
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