File:  [gforth] / gforth / ec / mirror.fs
Revision 1.7: download - view: text, annotated - select for diffs
Mon Dec 31 19:02:25 2007 UTC (16 years, 3 months ago) by anton
Branches: MAIN
CVS tags: v0-7-0, HEAD
updated copyright year after changing license notice

    1: \ mirror.fs mirrors ram in rom and copies back at startup
    2: 
    3: \ Copyright (C) 1998,2000,2003,2004,2007 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation, either version 3
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program. If not, see http://www.gnu.org/licenses/.
   19: 
   20: 0 [IF]
   21: 
   22: For the romable feature:
   23: 
   24: We need to save the ram area (there might be initialized variables,
   25: and code-fields...) into rom and copy it back at system startup.
   26: 
   27: [THEN]
   28: 
   29: \ save ram area
   30: 
   31: >rom
   32: unlock ram-dictionary extent lock		
   33: Constant ram-len
   34: Constant ram-start
   35: Variable ram-origin
   36: ram-start ram-origin ram-len unlock tcmove lock 
   37: ram-len allot align
   38: >auto
   39: 
   40: : mirrorram
   41:   ram-origin ram-start ram-len cmove ;
   42: 

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