User character definition (03) <ext, User, Character – IBM 32x User Manual
Page 34: Definition
Purpose:
Selects
the
specified
character
set.
00
Modified
IBM
code
page
437
(U.S./European,
power-on
default)
01
Modified
IBM
code
page
897
(Katakana)
02
Modified
IBM
code
page
858
(Multilingual
International)
03
Modified
IBM
code
page
852
(Central
Europe)
04
Modified
IBM
code
page
855
(Cyrillic)
05
Modified
IBM
code
page
857
(Turkey)
06
Modified
IBM
code
page
862
(Israel)
07
Modified
IBM
code
page
863
(Canadian
French)
08
Modified
IBM
code
page
864
(Arabic)
09
Modified
IBM
code
page
865
(Nordic)
0A
Modified
IBM
code
page
808
(Cyrillic
-
Russia)
0B
Modified
IBM
code
page
869
(Greece)
Example:
This
example
selects
the
U.S./European
character
set:
02
00
User
character
definition
(03)
<EXT>
03
nn
Purpose:
Defines
a
custom
character.
Logic
Controls
Emulation
Mode
The
byte
that
follows
the
command
byte
contains
an
ASCII
character
between
X'20'
and
X'7F'
of
a
keyboard
key
to
be
redefined.
This
byte
is
followed
by
five
bytes
defining
the
bit
patterns
of
the
user-defined
character.
Logic
Controls
Emulation
Mode
allows
only
one
keyboard
key
to
be
redefined.
This
means
that
there
is
only
one
user-definable
character
in
this
mode.
Once
a
key
is
redefined,
any
occurrence
of
that
character
on
the
display
will
change
to
the
user-defined
character.
If
a
new
key
is
redefined,
the
previously
redefined
key
is
restored
to
the
original
character
in
all
places
on
the
display
and
the
newly
redefined
key
is
changed
to
the
user-definable
character.
shows
the
format
of
these
five
bytes.
Note:
A
hyphen
character
in
the
table
indicates
a
do-not-care
bit.
The
other
values
relate
to
the
character
pixel
positions
shown
in
the
diagram
following
the
table.
A
value
of
1
in
the
data
stream
indicates
that
the
related
pixel
position
is
ON;
a
0
indicates
that
it
is
OFF.
Input/output
device
commands
11-9-2005
A-2
SurePOS
Installation
and
Service
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