qemu/target-unicore32/exec.h

51 lines
1.0 KiB
C

/*
* UniCore32 execution defines
*
* Copyright (C) 2010-2011 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UC32_EXEC_H__
#define __UC32_EXEC_H__
#include "config.h"
#include "dyngen-exec.h"
register struct CPUState_UniCore32 *env asm(AREG0);
#include "cpu.h"
#include "exec-all.h"
static inline void env_to_regs(void)
{
}
static inline void regs_to_env(void)
{
}
static inline int cpu_has_work(CPUState *env)
{
return env->interrupt_request &
(CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB);
}
static inline int cpu_halted(CPUState *env)
{
if (!env->halted) {
return 0;
}
/* An interrupt wakes the CPU even if the I and R ASR bits are
set. We use EXITTB to silently wake CPU without causing an
actual interrupt. */
if (cpu_has_work(env)) {
env->halted = 0;
return 0;
}
return EXCP_HALTED;
}
#endif /* __UC32_EXEC_H__ */