branch.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
- /*
- * Branch and jump emulation.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
- *
- * $Id: branch.h,v 1.2 1998/04/28 19:37:46 ralf Exp $
- */
- #include <asm/ptrace.h>
- extern inline int delay_slot(struct pt_regs *regs)
- {
- return regs->cp0_cause & CAUSEF_BD;
- }
- extern int __compute_return_epc(struct pt_regs *regs);
- extern inline int compute_return_epc(struct pt_regs *regs)
- {
- if (!delay_slot(regs)) {
- regs->cp0_epc += 4;
- return 0;
- }
- return __compute_return_epc(regs);
- }