Block
Data
Transfer
CURSOR
LOCATION.
The
location of
the
cursor
after
the
block
transfer
is completed
depends on
the
terminal
mode combination.
It
will be one
of
the
following:
• Immediately following
the
end
character.
• Column 1,
with
or
without
a line feed.
•
Start
column,
with
or
without
a line feed (modify modes
data
transfer).
•
First
column
after
the
end
of
a field (when a field
or
portion of a field is
transmitted).
•
Last
character
position
in
the
field
transmitted.
Non-Format Mode Data Transfer
The
following
paragraphs
contain
some general
rules
applicable to
data
transfer
when
not
in
Format
mode.
DATA
TRANSFERRED.
Data
transmitted
in
non-Format mode is as follows:
• ASCII displayable characters.
• ASCII control codes.
• Video
enhancement
escape sequences.
•
Alternate
character
set
escape sequences.
• Field definition escape sequences (including
edit
check escape sequences).
Video
enhancements,
alternate
character
set
selections, field definitions,
and
edit
checks
in
display memory
are
converted to escape sequences
and
sent
with
the
ASCII
characters.
Duplicate escape sequences
are
stripped
from
the
data
block before
transmission.
The
duplications
remain
in
the
terminal
display memory.
CURSOR
START
POINT.
The
left
margin
setting
has
no effect
in
cursor
positioningbefore
or
after
a block transfer.
For
block
transfers,
the
((home
up" positionfor
cursor
repositioningis
not
the
same
as
the
((home up" for
the
escapesequenceorkeystroke.
The
block
transfer
((home up" is
the
top of
the
workspace
and
is
not
affected by
the
left
margin
setting
as
is
the
normal
((home
up".
When
in
Block mode
a~d
with
the
menu
Au t
oTerm(
J)
field
set
to
((Yes",
the
search
backward,
for a
character
(block
terminator
or non-displaying
terminator)
at
which to locate
the
cursor
start
point, ends
at
the
top of
the
workspace.
The
left
margin
setting
is ignored.
If
there
is a memory-locked
area
and
the
cursor is outside of
it
when
the.
key is
struck,
the
search
backward for a cursor
start
point skips over
the
memory-locked
area.
If
the
cursor is
within
a memory-locked
area,
a non-displaying
terminator
(NDT)
is
entered
at
the
cursor location
and
the
backward search includes
the
memory-locked
area
as
well
as
any
area
preceding it.
If
the
top row of
the
workspace is below
the
memory-locked
area
and
no block
terminator
or
NDT isfound
in
the
memory-locked
area,
the
cursoris
set
to
the
topof
the
workspace. Note
that
in
a case
where
the
cursor is
in
the
memory-locked
area
to begin with,
the
inserted
NDTwould
not
be encountered
and
the
transfer
would
terminate
elsewhere.
9-9
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