Carriage return (0d) <cr, Test (0f) <si, Display position (10) <dle – IBM 32x User Manual
Page 38: Normal-display control mode (11) <dc1, Carriage, Return, Test, Display, Position, Normal-display
line
is
cleared,
and
the
cursor
position
is
unchanged.
This
command
always
stops
the
scrolling
alphanumeric
message.
Carriage
return
(0D)
<CR>
0D
Purpose:
Causes
the
cursor
to
move
to
the
leftmost
position
of
the
current
line.
This
command
stops
the
scrolling
alphanumeric
message
if
the
cursor
position
is
on
the
top
line
when
this
command
is
sent.
Test
(0F)
<SI>
0F
Purpose:
Causes
the
first
40
characters
in
the
currently
selected
character
set
to
be
displayed
once.
At
the
end
of
the
test,
a
test
pattern
is
written
that
turns
all
pixels
ON.
At
the
end
of
the
test,
the
display
is
cleared
and
is
reset
to
the
power-on
state
as
described
at
Display
position
(10)
<DLE>
10
nn
Purpose:
Changes
the
cursor
position.
The
byte
that
follows
the
command
byte
indicates
the
character
position
where
the
next
data-string
write
operation
is
to
start.
Any
values
greater
than
X'27'
are
ignored
and
the
cursor
position
remains
unchanged.
This
command
stops
the
scrolling
alphanumeric
message
if
the
cursor
position
is
on
the
top
line
when
this
command
is
sent.
X'00'
Top
left
X'13'
Top
right
X'14'
Bottom
left
X'27'
Bottom
right
Normal-display
control
mode
(11)
<DC1>
11
Purpose:
Sets
normal
display-control
mode
(DC1)
and
permits
data
to
be
written
to
either
line.
After
a
character
is
written,
the
cursor
moves
one
position
to
the
right.
When
the
display
position
is
at
the
last
position
of
the
top
line,
the
cursor
moves
to
the
first
position
of
the
bottom
line.
When
the
display
position
is
at
the
last
position
of
the
bottom
line,
the
cursor
moves
to
the
first
position
of
the
top
line.
The
display
remains
in
DC1
mode
until
a
DC2
mode
command
is
issued,
a
reset
command
is
issued,
or
power
is
removed
from
the
display.
Input/output
device
commands
11-9-2005
A-6
SurePOS
Installation
and
Service