//==========================================================================
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//==========================================================================
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//
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//
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// mcmp.c
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// mcmp.c
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//
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//
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// RedBoot memory compare (mcmp) routine
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// RedBoot memory compare (mcmp) routine
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//
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//
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//==========================================================================
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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// Copyright (C) 2002 Gary Thomas
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// Copyright (C) 2002 Gary Thomas
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//
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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// for more details.
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//
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//
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// You should have received a copy of the GNU General Public License along
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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//
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// As a special exception, if other files instantiate templates or use macros
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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// in accordance with section (3) of the GNU General Public License.
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//
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//
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// This exception does not invalidate any other reasons why a work based on
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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// this file might be covered by the GNU General Public License.
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//
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//#####DESCRIPTIONBEGIN####
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//
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//
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// Author(s): gthomas
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// Author(s): gthomas
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// Contributors: gthomas
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// Contributors: gthomas
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// Date: 2002-08-06
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// Date: 2002-08-06
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// Purpose:
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// Purpose:
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// Description:
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// Description:
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//
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//
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// This code is part of RedBoot (tm).
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// This code is part of RedBoot (tm).
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//
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//
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//####DESCRIPTIONEND####
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//####DESCRIPTIONEND####
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//
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//
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//==========================================================================
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//==========================================================================
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#include <redboot.h>
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#include <redboot.h>
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RedBoot_cmd("mcmp",
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RedBoot_cmd("mcmp",
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"Compare two blocks of memory",
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"Compare two blocks of memory",
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"-s <location> -d <location> -l <length> [-1|-2|-4]",
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"-s <location> -d <location> -l <length> [-1|-2|-4]",
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do_mcmp
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do_mcmp
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);
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);
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void
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void
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do_mcmp(int argc, char *argv[])
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do_mcmp(int argc, char *argv[])
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{
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{
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// Fill a region of memory with a pattern
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// Fill a region of memory with a pattern
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struct option_info opts[6];
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struct option_info opts[6];
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unsigned long src_base, dst_base;
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unsigned long src_base, dst_base;
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long len;
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long len;
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bool src_base_set, dst_base_set, len_set;
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bool src_base_set, dst_base_set, len_set;
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bool set_32bit, set_16bit, set_8bit;
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bool set_32bit, set_16bit, set_8bit;
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init_opts(&opts[0], 's', true, OPTION_ARG_TYPE_NUM,
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init_opts(&opts[0], 's', true, OPTION_ARG_TYPE_NUM,
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(void **)&src_base, (bool *)&src_base_set, "base address");
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(void **)&src_base, (bool *)&src_base_set, "base address");
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init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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(void **)&len, (bool *)&len_set, "length");
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(void **)&len, (bool *)&len_set, "length");
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init_opts(&opts[2], 'd', true, OPTION_ARG_TYPE_NUM,
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init_opts(&opts[2], 'd', true, OPTION_ARG_TYPE_NUM,
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(void **)&dst_base, (bool *)&dst_base_set, "base address");
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(void **)&dst_base, (bool *)&dst_base_set, "base address");
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init_opts(&opts[3], '4', false, OPTION_ARG_TYPE_FLG,
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init_opts(&opts[3], '4', false, OPTION_ARG_TYPE_FLG,
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(void *)&set_32bit, (bool *)0, "fill 32 bit units");
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(void *)&set_32bit, (bool *)0, "fill 32 bit units");
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init_opts(&opts[4], '2', false, OPTION_ARG_TYPE_FLG,
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init_opts(&opts[4], '2', false, OPTION_ARG_TYPE_FLG,
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(void **)&set_16bit, (bool *)0, "fill 16 bit units");
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(void **)&set_16bit, (bool *)0, "fill 16 bit units");
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init_opts(&opts[5], '1', false, OPTION_ARG_TYPE_FLG,
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init_opts(&opts[5], '1', false, OPTION_ARG_TYPE_FLG,
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(void **)&set_8bit, (bool *)0, "fill 8 bit units");
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(void **)&set_8bit, (bool *)0, "fill 8 bit units");
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if (!scan_opts(argc, argv, 1, opts, 6, 0, 0, "")) {
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if (!scan_opts(argc, argv, 1, opts, 6, 0, 0, "")) {
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return;
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return;
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}
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}
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if (!src_base_set || !dst_base_set || !len_set) {
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if (!src_base_set || !dst_base_set || !len_set) {
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diag_printf("usage: mcmp -s <addr> -d <addr> -l <length> [-1|-2|-4]\n");
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diag_printf("usage: mcmp -s <addr> -d <addr> -l <length> [-1|-2|-4]\n");
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return;
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return;
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}
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}
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// No checks here
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// No checks here
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if (set_8bit) {
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if (set_8bit) {
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// Compare 8 bits at a time
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// Compare 8 bits at a time
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while ((len -= sizeof(cyg_uint8)) >= 0) {
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while ((len -= sizeof(cyg_uint8)) >= 0) {
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if (*((cyg_uint8 *)src_base)++ != *((cyg_uint8 *)dst_base)++) {
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if (*((cyg_uint8 *)src_base)++ != *((cyg_uint8 *)dst_base)++) {
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((cyg_uint8 *)src_base)--;
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((cyg_uint8 *)src_base)--;
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((cyg_uint8 *)dst_base)--;
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((cyg_uint8 *)dst_base)--;
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diag_printf("Buffers don't match - %p=0x%02x, %p=0x%02x\n",
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diag_printf("Buffers don't match - %p=0x%02x, %p=0x%02x\n",
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src_base, *((cyg_uint8 *)src_base),
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src_base, *((cyg_uint8 *)src_base),
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dst_base, *((cyg_uint8 *)dst_base));
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dst_base, *((cyg_uint8 *)dst_base));
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return;
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return;
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}
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}
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}
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}
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} else if (set_16bit) {
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} else if (set_16bit) {
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// Compare 16 bits at a time
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// Compare 16 bits at a time
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while ((len -= sizeof(cyg_uint16)) >= 0) {
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while ((len -= sizeof(cyg_uint16)) >= 0) {
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if (*((cyg_uint16 *)src_base)++ != *((cyg_uint16 *)dst_base)++) {
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if (*((cyg_uint16 *)src_base)++ != *((cyg_uint16 *)dst_base)++) {
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((cyg_uint16 *)src_base)--;
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((cyg_uint16 *)src_base)--;
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((cyg_uint16 *)dst_base)--;
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((cyg_uint16 *)dst_base)--;
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diag_printf("Buffers don't match - %p=0x%04x, %p=0x%04x\n",
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diag_printf("Buffers don't match - %p=0x%04x, %p=0x%04x\n",
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src_base, *((cyg_uint16 *)src_base),
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src_base, *((cyg_uint16 *)src_base),
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dst_base, *((cyg_uint16 *)dst_base));
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dst_base, *((cyg_uint16 *)dst_base));
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return;
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return;
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}
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}
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}
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}
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} else {
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} else {
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// Default - 32 bits
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// Default - 32 bits
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while ((len -= sizeof(cyg_uint32)) >= 0) {
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while ((len -= sizeof(cyg_uint32)) >= 0) {
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if (*((cyg_uint32 *)src_base)++ != *((cyg_uint32 *)dst_base)++) {
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if (*((cyg_uint32 *)src_base)++ != *((cyg_uint32 *)dst_base)++) {
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((cyg_uint32 *)src_base)--;
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((cyg_uint32 *)src_base)--;
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((cyg_uint32 *)dst_base)--;
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((cyg_uint32 *)dst_base)--;
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diag_printf("Buffers don't match - %p=0x%08x, %p=0x%08x\n",
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diag_printf("Buffers don't match - %p=0x%08x, %p=0x%08x\n",
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src_base, *((cyg_uint32 *)src_base),
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src_base, *((cyg_uint32 *)src_base),
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dst_base, *((cyg_uint32 *)dst_base));
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dst_base, *((cyg_uint32 *)dst_base));
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return;
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return;
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}
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}
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}
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}
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}
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}
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}
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}
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