gforth/vt100.fs - diff

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-version 1.2, 1995/11/07 18:07:04
+version 1.5, 1999/12/03 18:24:23
  Line 23  decimal
  : pn    base @ swap decimal 0 u.r base ! ;
  : ;pn   [char] ; emit pn ;
  : ESC[  27 emit [char] [ emit ;
- : at-xy 1+ swap 1+ swap ESC[ pn ;pn [char] H emit ;
- : page  ESC[ ." 2J" 0 0 at-xy ;
+ : at-xy ( u1 u2 -- ) \ facility at-x-y
+   \G Position the cursor so that subsequent text output will take
+   \G place at column @var{u1}, row @var{u2} of the display. (column 0,
+   \G row 0 is the top left-hand corner of the display).
++ swap 1+ swap ESC[ pn ;pn [char] H emit ;
+ : page ( -- ) \ facility
+   \G Clear the display and set the cursor to the top left-hand
+   \G corner.
+   ESC[ ." 2J" 0 0 at-xy ;