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[/] [openrisc/] [trunk/] [or1ksim/] [testsuite/] [test-code-or1k/] [mem-test/] [mem-test.c] - Rev 178
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/* mem-test.c. Simple memory test for Or1ksim Copyright (C) 1999-2006 OpenCores Copyright (C) 2010 Embecosm Limited Contributors various OpenCores participants Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> This file is part of OpenRISC 1000 Architectural Simulator. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http: www.gnu.org/licenses/>. */ /* ---------------------------------------------------------------------------- This code is commented throughout for use with Doxygen. --------------------------------------------------------------------------*/ /* Simple test, which tests whether memory accesses are performed correctly. WARNING: Requires big endian host!!! */ #include "support.h" unsigned long _ul, *pul; unsigned short *pus; unsigned char *puc; int main () { unsigned long cnt = 0; _ul = 0x12345678; pul = &_ul; report (*pul); cnt = (cnt + *pul) << 1; pus = (unsigned short *)&_ul; report (*pus); cnt = (cnt + *pus) << 1; pus++; report (*pus); cnt = (cnt + *pus) << 1; puc = (unsigned char *)&_ul; report (*puc); cnt = (cnt + *puc) << 1; puc++; report (*puc); cnt = (cnt + *puc) << 1; puc++; report (*puc); cnt = (cnt + *puc) << 1; puc++; report (*puc); cnt = (cnt + *puc) << 1; *pul = 0xdeaddead; report (*pul); cnt = (cnt + *pul) << 1; pus = (unsigned short *)&_ul; *pus = 0x5678; report (*pul); cnt = (cnt + *pul) << 1; pus++; *pus = 0x1234; report (*pul); cnt = (cnt + *pul) << 1; puc = (unsigned char *)&_ul; *puc = 0xdd; report (*pul); cnt = (cnt + *pul) << 1; puc++; *puc = 0xcc; report (*pul); cnt = (cnt + *pul) << 1; puc++; *puc = 0xbb; report (*pul); cnt = (cnt + *pul) << 1; puc++; *puc = 0xaa; report (*pul); cnt = (cnt + *pul) << 1; report (cnt); cnt ^= 0xdeaddead ^ 0xda25e544; report(cnt); return (cnt != 0xdeaddead); }
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