Appendix C. Translation
Codes
The
§!SYSTEM
command
allows for a
different
translation
to
the
eBCD
notation.
Both
the
5100
and
the
remote
system
must
use
the
same translation.
When
the
APL
or
APL.SV translation
is
used, valid APL overstrike characters are
allowed. Invalid overstrike characters are replaced by
the
OUT
(0
backspace
U backspace T)
character
on
the
display screen,
but
are
transmitted
as
they
are
entered
from
the
keyboard. When invalid codes are read
from
tape,
they
are
converted
to
OUT characters
and
the
error
code
086
is
displayed
on
the
status
line.
In
the
BASIC translation,
two
characters
cannot
be
combined
to
form
a single
character;
the
overstriking
character
replaces
the
existing character.
The
OTHER translation
is
the
same as BASIC
except
that
combined
characters are
replaced by
OUT
characters.
CHARACTER CODE
CHART
The
character
code
chart
shows
the
bit value
of
the
eBCD characters
that
are
transmitted
and
received by
the
5100.
All
lower shift BASIC alphabetic characters are displayed as uppercase characters,
but
are
transmitted
as
lowercase characters. Alphabetic characters received are
displayed
as
uppercase
whether
they
are uppercase
or
lowercase.
For
example,
if
the
A key
is
pressed, an uppercase A
is
displayed
on
the
screen,
but
a lowercase
a
is
transmitted.
Other
BASIC characters are displayed
and
transmitted
as shown
on
the
chart.
All
APL characters are displayed
and
transmitted
as shown
on
the
following
chart:
42
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