AT&T 610 - Scrolling Regions

User's Guide
August 1985
Scro1Ung Regions
The screen can be divided into two static regions and one
scrolling region, one static region and one scrolling region, or
one scrolling region by receiving the escape sequence ESC[ top
row; bottom row r (refer to Section 8) where:
Top row -- defines the first line of the scrolling region.
Bot tom row -- defines the last line of the scrolling
region.
e.g.: ESC [5;20 r
This sequence will establish a scrolling region from lines
5 through 20. Lines 1 through 4 and 21 through 24 are static
regions.
To establish only two regions, either of the following
sequences are used:
ESC [ top row r or ESC [ ;bottom row r
The first sequence will establish the lower region as the
scrolling region and the second sequence will establish the
upper region as the scrolling region.
Whenever the split screen escape sequence is received, the
cursor will be homed. The cursor can be freely moved between
screen regions with cursor addressing when not in the Origin
mode (refer to Section 8), but destructive scrolling will occur
only in the defined region. If in Origin mode (refer to Section
8), the cursor cannot be moved outside the scrolling region
except for the status line (by an escape sequence) or a cursor
restore sequence. The scrolling region must be at least two
lines.
Line insert and line delete (refer to Section 8) operate
only in the scrolling region. When autowrap is enabled and the
cursor is on the last line of the screen in a nonscrolling
region, a newline will position the cursor at the beginning of
the same line.
0-------- -,
Ii I 24 LINE 1:1
SCROLLING REGION
L __________ ~J
DOD DO DCl=J
Kxa.ple: One Scrolliftg Region
Operations
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