Archipelago » qemu

#if defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_M68K)

#if !(defined(TARGET_SPARC) || defined(TARGET_SH4) || defined(TARGET_M68K))

#elif defined(TARGET_M68K)

    flags = env->fpcr & M68K_FPCR_PREC;

    cs_base = 0;

    pc = env->pc;

#elif defined(TARGET_M68K)

    env->cc_op = CC_OP_FLAGS;

    env->cc_dest = env->sr & 0xf;

    env->cc_x = (env->sr >> 4) & 1;

#elif defined(TARGET_M68K)

                    cpu_m68k_flush_flags(env, env->cc_op);

                    env->cc_op = CC_OP_FLAGS;

                    env->sr = (env->sr & 0xffe0)

                              | env->cc_dest | (env->cc_x << 4);

                    cpu_dump_state(env, logfile, fprintf, 0);

#elif defined(TARGET_M68K)

    cpu_m68k_flush_flags(env, env->cc_op);

    env->cc_op = CC_OP_FLAGS;

    env->sr = (env->sr & 0xffe0)

              | env->cc_dest | (env->cc_x << 4);

#elif defined(TARGET_M68K)

static inline int handle_cpu_signal(unsigned long pc, unsigned long address,

                                    int is_write, sigset_t *old_set,

                                    void *puc)

{

    TranslationBlock *tb;

    int ret;

    if (cpu_single_env)

        env = cpu_single_env; /* XXX: find a correct solution for multithread */

#if defined(DEBUG_SIGNAL)

    printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n", 

           pc, address, is_write, *(unsigned long *)old_set);

#endif

    /* XXX: locking issue */

    if (is_write && page_unprotect(address, pc, puc)) {

        return 1;

    }

    /* see if it is an MMU fault */

    ret = cpu_m68k_handle_mmu_fault(env, address, is_write, 1, 0);

    if (ret < 0)

        return 0; /* not an MMU fault */

    if (ret == 0)

        return 1; /* the MMU fault was handled without causing real CPU fault */

    /* now we have a real cpu fault */

    tb = tb_find_pc(pc);

    if (tb) {

        /* the PC is inside the translated code. It means that we have

           a virtual CPU fault */

        cpu_restore_state(tb, env, pc, puc);

    }

    /* we restore the process signal mask as the sigreturn should

       do it (XXX: use sigsetjmp) */

    sigprocmask(SIG_SETMASK, old_set, NULL);

    cpu_loop_exit();

    /* never comes here */

    return 1;

}