6530 Programmer's Guide

Block Mode Operation
3-18
6530 Programmer’s Guide
Backspace (BS)
The BS control character (08H) moves the cursor one column position to
the left. If the cursor is initially in column l, the cursor moves to the last
column of the previous row. If the cursor is initially in row 1, column l,
the cursor wraps to the last column of the last row. The backspace is
nondestructive.
In protect submode, if the new cursor position is protected, the 6530 first
back tabs to the previous unprotected field and then moves the cursor to
the last column of that field.
Carriage Return (CR)
The CR control character (0DH) moves the cursor to column 1 of the
current row.
In protect submode, if the new cursor position is protected, a forward tab
operation occurs.
Cursor Home (Esc H)
The Esc H sequence moves the cursor to the first column of the first row
(nonprotect submode) or the first position of the first unprotected field
(protect submode).
Cursor Home Down (Esc F)
The Esc F sequence moves the cursor to the first column of the last row
(nonprotect submode) or the first position of the last unprotected field
(protect submode).
Horizontal Tab (HT)
The HT control character (09H) moves the cursor forward (right) to the
next horizontal tab stop in nonprotect submode. See page 3-16 for details
on setting tabs. If the cursor is initially positioned past the row’s last tab
stop, the cursor moves to column 1 of the next row.
In protect submode, the cursor moves to the first position of the next
unprotected field (searching right and then down). If no unprotected
fields are encountered before the end of the page, the cursor wraps
around to the home position and the search continues.