File:  [gforth] / gforth / ec / shex.fs
Revision 1.5: download - view: text, annotated - select for diffs
Mon Aug 25 14:17:50 2003 UTC (19 years, 3 months ago) by anton
Branches: MAIN
CVS tags: v0-6-2, HEAD
documentation updates
fixed some portability bugs in vmgen-ex and vmgen-ex2
updated copyright years

    1: \ shex.fs Output Routines for Motorola S-Records		16jul97jaw
    2: 
    3: \ Copyright (C) 1998,2000,2003 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: \ this is a extention to cross.fs to save motorola s-records
   22: \ the first part is generic to output s-records from and to any
   23: \ destination
   24: \ the second part is for the cross compiler
   25: 
   26: unlock >CROSS
   27: 
   28: decimal
   29: 
   30: \ only method to get information
   31: defer @byte ' c@ IS @byte
   32: 
   33: \ only method to output
   34: defer htype ' type IS htype
   35: 
   36: : hemit pad c! pad 1 htype ;
   37: : hcr #lf hemit ;
   38: 
   39: : .## ( c -- ) 	     base @ swap hex s>d <# # # #> htype base ! ;
   40: \ generic checksum support
   41: 
   42: variable csum
   43: : csum+ ( c -- c )   dup csum +! ;
   44: : .b  ( c -- ) 	     csum+ .## ;
   45: : .w  ( w -- ) 	     dup 8 rshift .b 255 and .b ;
   46: : .csum ( -- )	     csum @ 255 xor 255 and .b ;
   47: 
   48: 2 constant adrlen
   49: 1 constant csumlen
   50: 32 constant maxline
   51: 
   52: : .smem ( destadr adr len type -- )
   53:   'S hemit hemit 0 csum !
   54:   dup adrlen + csumlen + .b
   55:   rot .w
   56:   bounds ?DO I @byte .b LOOP
   57:   .csum hcr ;
   58: 
   59: : 3dup >r 2dup r@ -rot r> ;
   60: 
   61: : .sregion ( destadr adr len -- )
   62:   BEGIN dup
   63:   WHILE	3dup maxline min dup >r
   64: 	'1 .smem r@ /string rot r> + -rot
   65:   REPEAT drop 2drop ;
   66: 
   67: : .startaddr ( adr -- )
   68:   'S hemit '9 hemit 0 csum !
   69:   adrlen csumlen + .b
   70:   .w .csum hcr ;
   71: 
   72: \ specific for cross-compiler
   73: 
   74: 0 value fd
   75: : (htype) fd write-file throw ;
   76: ' (htype) IS htype
   77: 
   78: : tc@ X c@ ;
   79: ' tc@ IS @byte
   80: 
   81: variable start-addr
   82: 
   83: : save-region-shex ( adr len -- )
   84:   bl parse w/o create-file throw to fd
   85: 
   86: \ PSC1000 trick:
   87:   'E hemit
   88:   2dup over swap 200 min .sregion
   89: 
   90:   over swap .sregion 
   91:   start-addr @ .startaddr
   92:   fd close-file throw ;
   93: 
   94: >MINIMAL
   95: 
   96: : cpu-start start-addr ! ;
   97: : save-region-shex save-region-shex ;
   98: 
   99: >CROSS
  100: 
  101: lock

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