1: \ shex.fs Output Routines for Motorola S-Records 16jul97jaw
2:
3: \ Copyright (C) 1998 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
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>