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\ shex.fs Output Routines for Motorola S-Records 16jul97jaw
\ Copyright (C) 1998,2000,2003 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
\ this is a extention to cross.fs to save motorola s-records
\ the first part is generic to output s-records from and to any
\ destination
\ the second part is for the cross compiler
unlock >CROSS
decimal
\ only method to get information
defer @byte ' c@ IS @byte
\ only method to output
defer htype ' type IS htype
: hemit pad c! pad 1 htype ;
: hcr #lf hemit ;
: .## ( c -- ) base @ swap hex s>d <# # # #> htype base ! ;
\ generic checksum support
variable csum
: csum+ ( c -- c ) dup csum +! ;
: .b ( c -- ) csum+ .## ;
: .w ( w -- ) dup 8 rshift .b 255 and .b ;
: .csum ( -- ) csum @ 255 xor 255 and .b ;
2 constant adrlen
1 constant csumlen
32 constant maxline
: .smem ( destadr adr len type -- )
'S hemit hemit 0 csum !
dup adrlen + csumlen + .b
rot .w
bounds ?DO I @byte .b LOOP
.csum hcr ;
: 3dup >r 2dup r@ -rot r> ;
: .sregion ( destadr adr len -- )
BEGIN dup
WHILE 3dup maxline min dup >r
'1 .smem r@ /string rot r> + -rot
REPEAT drop 2drop ;
: .startaddr ( adr -- )
'S hemit '9 hemit 0 csum !
adrlen csumlen + .b
.w .csum hcr ;
\ specific for cross-compiler
0 value fd
: (htype) fd write-file throw ;
' (htype) IS htype
: tc@ X c@ ;
' tc@ IS @byte
variable start-addr
: save-region-shex ( adr len -- )
bl parse w/o create-file throw to fd
\ PSC1000 trick:
'E hemit
2dup over swap 200 min .sregion
over swap .sregion
start-addr @ .startaddr
fd close-file throw ;
>MINIMAL
: cpu-start start-addr ! ;
: save-region-shex save-region-shex ;
>CROSS
lock
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