forth/bootstrap/builtin.fs

   1 \ tag: initialize builtin functionality
   2 \
   3 \ Copyright (C) 2003 Stefan Reinauer
   4 \
   5 \ See the file "COPYING" for further information about
   6 \ the copyright and warranty status of this work.
   7 \
   8
   9
  10
  11 : init-builtin-terminal  ( -- )
  12
  13   \ define key, key? and emit
  14   ['] (key) ['] key (to)
  15   ['] (key?) ['] key? (to)
  16   ['] (emit) ['] emit (to)
  17
  18   \ 2 bytes band guard on each side
  19   100 #ib !
  20   #ib @ dup             ( -- ibs ibs )
  21   cell+ alloc-mem       ( -- ibs addr )
  22   dup -rot              ( -- addr ibs addr )
  23
  24   /w + ['] ib (to)      \ assign input buffer
  25   0 fill                \ erase tib
  26   0 ['] source-id (to)  \ builtin terminal has id 0
  27
  28   ;