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Display Memory Functions
ENHANCEMENT CHARACTER
SELECTING ALTERNATE SETS
Half-Bright
Underline
Inverse Video
Blinking
End
Enhancement
@
A
B
C
0
E
F
G
H
I
J
K
L
M
N
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
To use optional character sets, first select the character set
to be used as the alternate. (With the terminal in its
initial state, character set A is defined to be the alternate.)
An alternate set is selected with the following sequence:
@
or
Esc) <set> where set
=
A or
B or
C
TEST PATTERN
Figure 2-5. Character Set Locations
C Character Set
(not installed)
B Character Set
A Character Set
@
Roman Set
Note that if
@
is used, the Roman or basic terminal set
would be selected as the alternate. To find out which
character set corresponds to
@,
A, B, or C, generate the
test pattern by pressing the
c:;;:J
key). This displays the
TEST
order of the character sets as shown below.
Example: Define columns 10 through 14 of line 5 to be
inverse video and blinking.
1
1
o
5
..
..
T~L
Step 1. Position the cursor at column 10 in line 5.
Step 2. Send ESC & d C
Step 3. Move the cursor to column 15 in line 5.
Step 4. Send ESC & d
@
(this ends the enhancements).
The field should be white.
Step 5. Send the word TERMINAL beginning in column 9
of line 5. It should appear as shown below.
(If
your
terminal does not have the 13231A accessory installed the
characters will not blink.)
USING ALTERNATE SETS
ALTERNATE CHARACTER SETS
Once the alternate character set is defined, you can switch
from the Roman to the alternate set with a Nc (SO).
The terminal can display up to four different character
sets. Each character set can contain up to 128 characters
or symbols. In addition to the Math, Line Drawing, and
Large Character sets available as options, you can create
character sets tailored for special applications. Contact
your nearest Hewlett-Packard Sales Office for additional
information on special character sets.
Switching from one character set to another can be done
on a character-by-character basis. For example, a
character from the Math Symbol Set can be displayed next
to characters from the Roman set. This is done by defining
one or more character positions in a line to be from
alternate character sets. (Each group of characters can be
thought of as a field.)
NOTE
The terminal automatically returns to the base or Roman
set at the end of a line. To return to the base set within a
line, send a Oc (S1). This means that you must send
another NC to turn on the alternate set if it extends to the
next line.
Example: Define the Math Set as the alternate character
set.
From the test pattern the Math Symbol Set is found to be
the A alternate character set.
An alternate set is selected with the following sequence:
ESC) A
The following discussion assumes that
the Math and Line Drawing character
sets are present and are installed as
alternate sets A and B respectively.
To display
AaB,B
send the following sequence:
The screen should display
Aa B,B :
2-9
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