Changes
/* LOCATE x,y */
==== LOCATE x,y ====
: Moves the text cursor to the x,y location.
: x starts at 1 on the left and goes up to 20 (in mode 0), 40 (in mode 1) or 80 (in mode 2).
: y starts at 1 at the top and ends at 25 at the bottom.
==== MASK [i1][,i2]====
