Epson PX-8 User Manual page 130

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