/* mem-test.c. Simple memory test for Or1ksim
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/* mem-test.c. Simple memory test for Or1ksim
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 2010 Embecosm Limited
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Copyright (C) 2010 Embecosm Limited
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Contributors various OpenCores participants
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Contributors various OpenCores participants
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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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 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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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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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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Software Foundation; either version 3 of the License, or (at your option)
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any later version.
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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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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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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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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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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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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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with this program. If not, see <http: www.gnu.org/licenses/>. */
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/* ----------------------------------------------------------------------------
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/* ----------------------------------------------------------------------------
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This code is commented throughout for use with Doxygen.
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This code is commented throughout for use with Doxygen.
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--------------------------------------------------------------------------*/
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--------------------------------------------------------------------------*/
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/* Simple test, which tests whether memory accesses are performed correctly.
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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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WARNING: Requires big endian host!!! */
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#include "support.h"
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#include "support.h"
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unsigned long _ul, *pul;
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unsigned long _ul, *pul;
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unsigned short *pus;
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unsigned short *pus;
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unsigned char *puc;
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unsigned char *puc;
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int main ()
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int main ()
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{
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{
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unsigned long cnt = 0;
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unsigned long cnt = 0;
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_ul = 0x12345678;
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_ul = 0x12345678;
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pul = &_ul;
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pul = &_ul;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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pus = (unsigned short *)&_ul;
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pus = (unsigned short *)&_ul;
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report (*pus);
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report (*pus);
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cnt = (cnt + *pus) << 1;
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cnt = (cnt + *pus) << 1;
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pus++;
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pus++;
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report (*pus);
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report (*pus);
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cnt = (cnt + *pus) << 1;
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cnt = (cnt + *pus) << 1;
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puc = (unsigned char *)&_ul;
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puc = (unsigned char *)&_ul;
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report (*puc);
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report (*puc);
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cnt = (cnt + *puc) << 1;
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cnt = (cnt + *puc) << 1;
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puc++;
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puc++;
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report (*puc);
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report (*puc);
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cnt = (cnt + *puc) << 1;
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cnt = (cnt + *puc) << 1;
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puc++;
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puc++;
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report (*puc);
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report (*puc);
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cnt = (cnt + *puc) << 1;
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cnt = (cnt + *puc) << 1;
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puc++;
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puc++;
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report (*puc);
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report (*puc);
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cnt = (cnt + *puc) << 1;
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cnt = (cnt + *puc) << 1;
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*pul = 0xdeaddead;
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*pul = 0xdeaddead;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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pus = (unsigned short *)&_ul;
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pus = (unsigned short *)&_ul;
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*pus = 0x5678;
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*pus = 0x5678;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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pus++;
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pus++;
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*pus = 0x1234;
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*pus = 0x1234;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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puc = (unsigned char *)&_ul;
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puc = (unsigned char *)&_ul;
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*puc = 0xdd;
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*puc = 0xdd;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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puc++;
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puc++;
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*puc = 0xcc;
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*puc = 0xcc;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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puc++;
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puc++;
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*puc = 0xbb;
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*puc = 0xbb;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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puc++;
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puc++;
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*puc = 0xaa;
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*puc = 0xaa;
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report (*pul);
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report (*pul);
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cnt = (cnt + *pul) << 1;
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cnt = (cnt + *pul) << 1;
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report (cnt);
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report (cnt);
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cnt ^= 0xdeaddead ^ 0xda25e544;
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cnt ^= 0xdeaddead ^ 0xda25e544;
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report(cnt);
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report(cnt);
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return (cnt != 0xdeaddead);
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return (cnt != 0xdeaddead);
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}
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}
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