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Linux Cross Reference
Linux/include/asm-mips/branch.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  1 /*
  2  * Branch and jump emulation.
  3  *
  4  * This file is subject to the terms and conditions of the GNU General Public
  5  * License.  See the file "COPYING" in the main directory of this archive
  6  * for more details.
  7  *
  8  * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
  9  *
 10  * $Id: branch.h,v 1.2 1998/04/28 19:37:46 ralf Exp $
 11  */
 12 #include <asm/ptrace.h>
 13 
 14 extern inline int delay_slot(struct pt_regs *regs)
 15 {
 16         return regs->cp0_cause & CAUSEF_BD;
 17 }
 18 
 19 extern int __compute_return_epc(struct pt_regs *regs);
 20 
 21 extern inline int compute_return_epc(struct pt_regs *regs)
 22 {
 23         if (!delay_slot(regs)) {
 24                 regs->cp0_epc += 4;
 25                 return 0;
 26         }
 27 
 28         return __compute_return_epc(regs);
 29 }
 30
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