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Diff for /gforth/tasker.fs between versions 1.1 and 1.4

version 1.1, 1996/03/31 20:16:04 version 1.4, 1997/05/21 20:39:42
Line 1 Line 1
 \ Multitasker                                          19aug94py  \ Multitasker                                          19aug94py
   
   \ Copyright (C) 1995-1997 Free Software Foundation, Inc.
   
   \ This file is part of Gforth.
   
   \ Gforth is free software; you can redistribute it and/or
   \ modify it under the terms of the GNU General Public License
   \ as published by the Free Software Foundation; either version 2
   \ of the License, or (at your option) any later version.
   
   \ This program is distributed in the hope that it will be useful,
   \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   \ GNU General Public License for more details.
   
   \ You should have received a copy of the GNU General Public License
   \ along with this program; if not, write to the Free Software
   \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   
 Create sleepers  sleepers A, sleepers A, 0 ,  Create sleepers  sleepers A, sleepers A, 0 ,
   
 \ LINK-TASK links task1 into the task chain of task2  \ LINK-TASK links task1 into the task chain of task2
Line 24  Create sleepers  sleepers A, sleepers A, Line 42  Create sleepers  sleepers A, sleepers A,
   
 \ USER' computes the task offset  \ USER' computes the task offset
 : user' ( 'user' -- n )  : user' ( 'user' -- n )
   ' >body @ state @ IF  postpone Literal  THEN ; immediate      ' >body @ postpone literal ; immediate
   interpretation:
       ' >body @ ;
   
 \ NEWTASK creates a new, sleeping task  \ NEWTASK creates a new, sleeping task
 : NewTask ( n -- Task )  dup 2* 2* udp @ + dup  : NewTask ( n -- Task )  dup 2* 2* udp @ + dup
Line 55  Create sleepers  sleepers A, sleepers A, Line 75  Create sleepers  sleepers A, sleepers A,
 : activate ( task -- )  0 swap (pass) ;  : activate ( task -- )  0 swap (pass) ;
 : pass ( x1 .. xn n task -- )  (pass) ;  : pass ( x1 .. xn n task -- )  (pass) ;
   
 : task-key   BEGIN  pause key?  UNTIL  (key) ;  : single-tasking? ( -- flag )
       next-task dup @ = ;
   
   : task-key   BEGIN  pause key? single-tasking? or  UNTIL  (key) ;
 : task-emit  (emit) pause ;  : task-emit  (emit) pause ;
 : task-type  (type) pause ;  : task-type  (type) pause ;
   
Removed from v.1.1  
changed lines
  Added in v.1.4

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