PX-8 must be pressed
in
order to see any printed output except
for
the
clock on the
MENU
page and the System Display.
ESC 125
Terminates the secret mode.
Keyboard
Decimal
Hexadecimal
ESC 144
ESC,{
27,125
IB,7D
Scrolls (m -
1)
lines starting
at
line (n +
1)
up one line so
that
line (n + m
-1)
becomes blank. This
is
done as follows:
Keyboard
Decimal
Hexadecimal
ESC,GRPH-U
,(n - l),(m)
27,I44,n-I,m
IB,90,n
-I,m
Numbers specified for
nand
m must satisfy all
of
the following conditions.
°
;:;i
(n-)I
<
(R-I)
1
;:;i
m;:;i R
(n-I+m-l)
< R
Here, R
is
the number
of
virtual screen lines in mode 0, 1,
or
2
and
is
the num-
ber
of
screen window lines in mode
3.
ESC 145
Scrolls the (m -
1)
lines starting
at
line n down one line so
that
line n becomes
blank. This
is
done as follows:
Keyboard
Decimal
Hexadecimal
ESC,GRPH-I,(n
-l),(m)
27,145,n-I,m
IB,91,n -
I,m
Numbers specified for
nand
m must satisfy all
of
the following conditions:
A-8
°
;:;i
(n -
1)
;:;i
(R
-1)
1
;:;i
m < R
(n-l+m-l)
< P
Here, R is the number
of
virtual screen lines in mode 0,
1,
or
2 and is the num-
ber
of
screen window lines in mode 3.
ESC 148
In
modes 0,
1,
and
2 this escape sequence sets the number
of
lines n which are
moved by one scrolling operation. The actual scrolling is carried out by print-
ing
an
ESC
150
sequence. The number
of
lines are set up using the following
sequence:
Keyboard
Decimal
Hexadecimal
ESC,GRPH-@,(n)
27,148,n
IB,94,n
The number specified for n must be greater
than
1
and
less
than
the number
of
lines in the screen window.
This escape sequence does nothing in mode 3.
ESC 149
In
modes 0,
1,
and
2 this escape sequence determines whether scrolling is per-
formed automatically. The automatic scrolling mode
is
referred
to
as
the tracking
mode,
and
the mode in which automatic scrolling
is
not
performed is referred
to
as the non-tracking mode. The tracking mode is used unless otherwise speci-
fied. The escape sequence for determining the tracking mode is as follows:
Keyboard ESC,GRPH-K,CTRL-@ for tracking mode
ESC,GRPH-K,CTRL-A for non-tracking mode
Decimal 27,149,0
or
1
Hexadecimal IB,95,0
or
1
In
this sequence, <
mode>
is specified as either °
or
1.
The tracking mode
is
selected when °
is
specified,
and
the non-tracking mode
is
selected when 1 is
specified.
Normally the
I SCRN I key
or
CONFIG
command can be used
to
switch between
the tracking and non-tracking modes.
A-9
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