AT&T 6300 Programmer's Manual page 340

LOCATE (Graphics)
Statement
Examples
7-184
10 LOCATE 5,1,4,2
Moves to line 5, column 1, turns the overwrite
cursor on with a blinkrate 4/18.75 seconds, and
sets the height of the cursor to 2. (All scanlines
of the cursor are initialized to &HFE, so 2
scanlines will appear unless the user has
changed the bitmap.)
100 LOCATE ,u1, &H82
110 LOCATE ,u2
120 FOR W=1 TO 2000
130 NEXT
Sets the bitmap of the second scanline of the
user cursor to binary 10000010, sets its height
to 2, and displays the user cursor for a couple
of seconds. It will appear as aU-shaped
underline like the initial overwrite cursor.