mips64_nojit_trans.c

思科路由器仿真器,用来仿7200系列得,可以在电脑上模拟路由器

/*
 * Cisco router simulation platform.
 * Copyright (c) 2006 Christophe Fillot ([e-mail])
 *
 * Just an empty JIT template file for architectures not supported by the JIT
 * code.
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>

#include "cpu.h"
#include "mips64_jit.h"
#include "mips64_nojit_trans.h"

/* Set an IRQ */
void mips64_set_irq(cpu_mips_t *cpu,m_uint8_t irq)
{
   m_uint32_t m;
   m = (1 << (irq + MIPS_CP0_CAUSE_ISHIFT)) & MIPS_CP0_CAUSE_IMASK;
   MIPS64_IRQ_LOCK(cpu);
   cpu->irq_cause |= m;
   MIPS64_IRQ_UNLOCK(cpu);
}

/* Clear an IRQ */
void mips64_clear_irq(cpu_mips_t *cpu,m_uint8_t irq)
{
   m_uint32_t m;

   m = (1 << (irq + MIPS_CP0_CAUSE_ISHIFT)) & MIPS_CP0_CAUSE_IMASK;
   MIPS64_IRQ_LOCK(cpu);
   cpu->irq_cause &= ~m;
   MIPS64_IRQ_UNLOCK(cpu);

   if (!cpu->irq_cause)
      cpu->irq_pending = 0;
}

#define EMPTY(func) func { \
   fprintf(stderr,"This function should not be called: "#func"\n"); \
   abort(); \
}

EMPTY(void mips64_jit_tcb_push_epilog(mips64_jit_tcb_t *block));
EMPTY(void mips64_jit_tcb_exec(cpu_mips_t *cpu,mips64_jit_tcb_t *block));
EMPTY(void mips64_set_pc(mips64_jit_tcb_t *b,m_uint64_t new_pc));
EMPTY(void mips64_set_ra(mips64_jit_tcb_t *b,m_uint64_t ret_pc));
EMPTY(void mips64_emit_breakpoint(mips64_jit_tcb_t *b));
EMPTY(void mips64_emit_single_step(mips64_jit_tcb_t *b,mips_insn_t insn));
EMPTY(int  mips64_emit_invalid_delay_slot(mips64_jit_tcb_t *b));
EMPTY(void mips64_inc_cp0_count_reg(mips64_jit_tcb_t *b));
EMPTY(void mips64_check_pending_irq(mips64_jit_tcb_t *b));
EMPTY(void mips64_inc_perf_counter(mips64_jit_tcb_t *b));

/* MIPS instruction array */
struct mips64_insn_tag mips64_insn_tags[] = {
   { NULL, 0, 0, 0 },
};