1 //==========================================================================
5 // RedBoot memory copy (mcopy) routine
7 //==========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
15 // Software Foundation; either version 2 or (at your option) any later version.
17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // You should have received a copy of the GNU General Public License along
23 // with eCos; if not, write to the Free Software Foundation, Inc.,
24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 // As a special exception, if other files instantiate templates or use macros
27 // or inline functions from this file, or you compile this file and link it
28 // with other works to produce a work based on this file, this file does not
29 // by itself cause the resulting work to be covered by the GNU General Public
30 // License. However the source code for this file must still be made available
31 // in accordance with section (3) of the GNU General Public License.
33 // This exception does not invalidate any other reasons why a work based on
34 // this file might be covered by the GNU General Public License.
36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37 // at http://sources.redhat.com/ecos/ecos-license/
38 // -------------------------------------------
39 //####ECOSGPLCOPYRIGHTEND####
40 //==========================================================================
41 //#####DESCRIPTIONBEGIN####
44 // Contributors: msalter
49 // This code is part of RedBoot (tm).
51 //####DESCRIPTIONEND####
53 //==========================================================================
58 do_mcopy(int argc, char *argv[])
60 struct option_info opts[6];
61 unsigned long src, dst, len, end;
62 bool src_set, dst_set, len_set;
66 init_opts(&opts[0], 's', true, OPTION_ARG_TYPE_NUM,
67 (void *)&src, (bool *)&src_set, "base address");
68 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
69 (void *)&len, (bool *)&len_set, "length");
70 init_opts(&opts[2], 'd', true, OPTION_ARG_TYPE_NUM,
71 (void *)&dst, (bool *)&dst_set, "base address");
72 init_opts(&opts[3], '4', false, OPTION_ARG_TYPE_FLG,
73 (void *)&sz32, (bool *)0, "copy 32 bit data");
74 init_opts(&opts[4], '2', false, OPTION_ARG_TYPE_FLG,
75 (void *)&sz16, (bool *)0, "copy 16 bit data");
76 init_opts(&opts[5], '1', false, OPTION_ARG_TYPE_FLG,
77 (void *)&sz8, (bool *)0, "copy 8 bit data");
78 if (!scan_opts(argc, argv, 1, opts, 6, 0, 0, "")) {
82 // Must have src, dst, len. No more than one size specifier.
83 if (!src_set || !dst_set || !len_set || (sz32 + sz16 + sz8) > 1) {
84 diag_printf("usage: mcopy -s <addr> -d <addr> -l <length> [-1|-2|-4]\n");
88 // adjust incr and len for data size
92 } else if (sz32 || !sz8) {
99 // If overlapping areas, must copy backwards.
100 if (dst > src && dst < (src + len)) {
109 *(cyg_uint8 *)dst = *(cyg_uint8 *)src;
115 *(cyg_uint16 *)dst = *(cyg_uint16 *)src;
122 *(cyg_uint32 *)dst = *(cyg_uint32 *)src;
131 "Copy memory from one address to another",
132 "-s <location> -d <location> -l <length> [-1|-2|-4]",