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[/] [openrisc/] [trunk/] [or1ksim/] [testsuite/] [test-code-or1k/] [mem-test/] [mem-test.c] - Blame information for rev 99

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1 90 jeremybenn
/* mem-test.c. Simple memory test for Or1ksim
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   Copyright (C) 1999-2006 OpenCores
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   Copyright (C) 2010 Embecosm Limited
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   Contributors various OpenCores participants
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   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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   This file is part of OpenRISC 1000 Architectural Simulator.
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   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the Free
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   Software Foundation; either version 3 of the License, or (at your option)
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   any later version.
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   This program is distributed in the hope that it will be useful, but WITHOUT
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   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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   more details.
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   You should have received a copy of the GNU General Public License along
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   with this program.  If not, see <http:  www.gnu.org/licenses/>.  */
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/* ----------------------------------------------------------------------------
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   This code is commented throughout for use with Doxygen.
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   --------------------------------------------------------------------------*/
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/* Simple test, which tests whether memory accesses are performed correctly.
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   WARNING: Requires big endian host!!! */
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#include "support.h"
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unsigned long _ul, *pul;
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unsigned short *pus;
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unsigned char *puc;
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int main ()
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{
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  unsigned long cnt = 0;
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  _ul = 0x12345678;
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  pul = &_ul;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  pus = (unsigned short *)&_ul;
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  report (*pus);
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  cnt = (cnt + *pus) << 1;
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  pus++;
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  report (*pus);
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  cnt = (cnt + *pus) << 1;
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  puc = (unsigned char *)&_ul;
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  report (*puc);
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  cnt = (cnt + *puc) << 1;
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  puc++;
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  report (*puc);
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  cnt = (cnt + *puc) << 1;
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  puc++;
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  report (*puc);
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  cnt = (cnt + *puc) << 1;
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  puc++;
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  report (*puc);
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  cnt = (cnt + *puc) << 1;
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  *pul = 0xdeaddead;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  pus = (unsigned short *)&_ul;
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  *pus = 0x5678;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  pus++;
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  *pus = 0x1234;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  puc = (unsigned char *)&_ul;
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  *puc = 0xdd;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  puc++;
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  *puc = 0xcc;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  puc++;
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  *puc = 0xbb;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  puc++;
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  *puc = 0xaa;
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  report (*pul);
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  cnt = (cnt + *pul) << 1;
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  report (cnt);
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  cnt ^= 0xdeaddead ^ 0xda25e544;
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  report(cnt);
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  return (cnt != 0xdeaddead);
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}

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