1 //==========================================================================
5 // RedBoot memory compare (mcmp) 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 Red Hat, Inc.
12 // Copyright (C) 2002 Gary Thomas
14 // eCos is free software; you can redistribute it and/or modify it under
15 // the terms of the GNU General Public License as published by the Free
16 // Software Foundation; either version 2 or (at your option) any later version.
18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23 // You should have received a copy of the GNU General Public License along
24 // with eCos; if not, write to the Free Software Foundation, Inc.,
25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
27 // As a special exception, if other files instantiate templates or use macros
28 // or inline functions from this file, or you compile this file and link it
29 // with other works to produce a work based on this file, this file does not
30 // by itself cause the resulting work to be covered by the GNU General Public
31 // License. However the source code for this file must still be made available
32 // in accordance with section (3) of the GNU General Public License.
34 // This exception does not invalidate any other reasons why a work based on
35 // this file might be covered by the GNU General Public License.
37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
38 // at http://sources.redhat.com/ecos/ecos-license/
39 // -------------------------------------------
40 //####ECOSGPLCOPYRIGHTEND####
41 //==========================================================================
42 //#####DESCRIPTIONBEGIN####
45 // Contributors: gthomas
50 // This code is part of RedBoot (tm).
52 //####DESCRIPTIONEND####
54 //==========================================================================
59 "Compare two blocks of memory",
60 "-s <location> -d <location> -l <length> [-1|-2|-4]",
65 do_mcmp(int argc, char *argv[])
67 // Fill a region of memory with a pattern
68 struct option_info opts[6];
69 unsigned long src_base, dst_base;
71 bool src_base_set, dst_base_set, len_set;
72 bool set_32bit, set_16bit, set_8bit;
74 init_opts(&opts[0], 's', true, OPTION_ARG_TYPE_NUM,
75 (void *)&src_base, (bool *)&src_base_set, "base address");
76 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
77 (void *)&len, (bool *)&len_set, "length");
78 init_opts(&opts[2], 'd', true, OPTION_ARG_TYPE_NUM,
79 (void *)&dst_base, (bool *)&dst_base_set, "base address");
80 init_opts(&opts[3], '4', false, OPTION_ARG_TYPE_FLG,
81 (void *)&set_32bit, (bool *)0, "fill 32 bit units");
82 init_opts(&opts[4], '2', false, OPTION_ARG_TYPE_FLG,
83 (void *)&set_16bit, (bool *)0, "fill 16 bit units");
84 init_opts(&opts[5], '1', false, OPTION_ARG_TYPE_FLG,
85 (void *)&set_8bit, (bool *)0, "fill 8 bit units");
86 if (!scan_opts(argc, argv, 1, opts, 6, 0, 0, "")) {
89 if (!src_base_set || !dst_base_set || !len_set) {
90 diag_printf("usage: mcmp -s <addr> -d <addr> -l <length> [-1|-2|-4]\n");
97 cyg_uint8 *s = (cyg_uint8 *)src_base;
98 cyg_uint8 *d = (cyg_uint8 *)dst_base;
99 while ((len -= sizeof(cyg_uint8)) >= 0) {
103 diag_printf("Buffers don't match - %p=0x%02x, %p=0x%02x\n",
109 } else if (set_16bit) {
110 cyg_uint16 *s = (cyg_uint16 *)src_base;
111 cyg_uint16 *d = (cyg_uint16 *)dst_base;
112 while ((len -= sizeof(cyg_uint16)) >= 0) {
116 diag_printf("Buffers don't match - %p=0x%04x, %p=0x%04x\n",
123 cyg_uint32 *s = (cyg_uint32 *)src_base;
124 cyg_uint32 *d = (cyg_uint32 *)dst_base;
125 while ((len -= sizeof(cyg_uint32)) >= 0) {
129 diag_printf("Buffers don't match - %p=0x%08x, %p=0x%08x\n",