| /* This file is part of GDB, the GNU debugger. |
| |
| Copyright 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
| |
| 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/>. */ |
| |
| #include <stdio.h> |
| |
| int main() |
| { |
| unsigned int word = 0; |
| unsigned int *word_addr = &word; |
| unsigned long dword = 0; |
| unsigned long *dword_addr = &dword; |
| |
| __asm __volatile ("1: lwarx %0,0,%2\n" \ |
| " addi %0,%0,1\n" \ |
| " stwcx. %0,0,%2\n" \ |
| " bne- 1b" \ |
| : "=&b" (word), "=m" (*word_addr) \ |
| : "b" (word_addr), "m" (*word_addr) \ |
| : "cr0", "memory"); \ |
| |
| __asm __volatile ("1: ldarx %0,0,%2\n" \ |
| " addi %0,%0,1\n" \ |
| " stdcx. %0,0,%2\n" \ |
| " bne- 1b" \ |
| : "=&b" (dword), "=m" (*dword_addr) \ |
| : "b" (dword_addr), "m" (*dword_addr) \ |
| : "cr0", "memory"); \ |
| |
| return 0; |
| } |