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/*
* 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, 2001 by Ralf Baechle
*/
#ifndef _ASM_BRANCH_H
#define _ASM_BRANCH_H
#include <asm/ptrace.h>
#include <asm/inst.h>
static inline int delay_slot(struct pt_regs *regs)
{
return regs->cp0_cause & CAUSEF_BD;
}
static inline unsigned long exception_epc(struct pt_regs *regs)
{
if (!delay_slot(regs))
return regs->cp0_epc;
return regs->cp0_epc + 4;
}
#define BRANCH_LIKELY_TAKEN 0x0001
extern int __compute_return_epc(struct pt_regs *regs);
extern int __compute_return_epc_for_insn(struct pt_regs *regs,
union mips_instruction insn);
static inline int compute_return_epc(struct pt_regs *regs)
{
if (!delay_slot(regs)) {
regs->cp0_epc += 4;
return 0;
}
return __compute_return_epc(regs);
}
#endif /* _ASM_BRANCH_H */
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