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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [testsuite/] [gdb.arch/] [ppc64-atomic-inst.c] - Blame information for rev 157

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Line No. Rev Author Line
1 24 jeremybenn
/* This file is part of GDB, the GNU debugger.
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   Copyright 2008 Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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#include <stdio.h>
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int main()
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{
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  unsigned int word = 0;
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  unsigned int *word_addr = &word;
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  unsigned long dword = 0;
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  unsigned long *dword_addr = &dword;
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  __asm __volatile ("1:     lwarx   %0,0,%2\n"              \
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                    "       addi    %0,%0,1\n"              \
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                    "       stwcx.  %0,0,%2\n"              \
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                    "       bne-    1b"                     \
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                    : "=&b" (word), "=m" (*word_addr)       \
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                    : "b" (word_addr), "m" (*word_addr)     \
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                    : "cr0", "memory");                     \
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  __asm __volatile ("1:     ldarx   %0,0,%2\n"              \
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                    "       addi    %0,%0,1\n"              \
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                    "       stdcx.  %0,0,%2\n"              \
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                    "       bne-    1b"                     \
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                    : "=&b" (dword), "=m" (*dword_addr)     \
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                    : "b" (dword_addr), "m" (*dword_addr)   \
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                    : "cr0", "memory");                     \
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  return 0;
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}

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