File:  [gforth] / gforth / simp-see.fs
Revision 1.6: download - view: text, annotated - select for diffs
Mon Dec 31 17:34:58 2007 UTC (11 years, 8 months ago) by anton
Branches: MAIN
CVS tags: HEAD
updated copyright years

    1: \ simple-minded see (good for seeing what the compiler produces)
    2: 
    3: \ Copyright (C) 2001,2003,2007 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 2
   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, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: require see.fs
   22: 
   23: : simple-see-word { addr -- }
   24:     xpos off addr hex. addr cell+ addr @ .word drop ;
   25: 
   26: : simple-see-range ( addr1 addr2 -- ) \ gforth
   27:     swap u+do
   28: 	cr i simple-see-word
   29:     cell +loop ;
   30: 
   31: : simple-see ( "name" -- ) \ gforth
   32:     \G a simple decompiler that's closer to @code{dump} than @code{see}.
   33:     \ !! at the moment NEXT-HEAD is a little too optimistic (see
   34:     \ comment in HEAD?)
   35:     ' >body dup next-head simple-see-range ;
   36: 
   37: : see-code-next-inline { addr1 addr2 -- addr3 }
   38:     \ decompile starting at addr1 until an inlined primitive is found,
   39:     \ or addr2 is reached; addr3 is addr2 or the next inlined
   40:     \ primitive
   41:     addr1 begin { addr }
   42:         addr addr2 u< while
   43:             addr @ dup decompile-prim = while
   44:                 addr cr simple-see-word
   45:                 addr cell+
   46:         repeat then
   47:     addr ;
   48: 
   49: : see-code-range { addr1 addr2 -- } \ gforth
   50:     cr addr1 begin { a }
   51:         a simple-see-word
   52:         a cell+ addr2 see-code-next-inline { b }
   53:         b addr2 u< while
   54:             a @ b @ over - discode
   55:             b
   56:     repeat ;
   57: 
   58: : see-code ( "name" -- ) \ gforth
   59: \G like @code{simple-see}, but also shows the dynamic native code for
   60: \G the inlined primitives (except for the last).
   61:     ' >body dup next-head see-code-range ;
   62:     

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>