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      1 /*
      2  *  ARM execution defines
      3  *
      4  *  Copyright (c) 2003 Fabrice Bellard
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Lesser General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Lesser General Public
     17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
     18  */
     19 #include "config.h"
     20 #include "dyngen-exec.h"
     21 
     22 GLOBAL_REGISTER_VARIABLE_DECL struct CPUARMState *env asm(AREG0);
     23 
     24 #include "cpu.h"
     25 #include "exec-all.h"
     26 
     27 static inline void env_to_regs(void)
     28 {
     29 }
     30 
     31 static inline void regs_to_env(void)
     32 {
     33 }
     34 
     35 static inline int cpu_has_work(CPUState *env)
     36 {
     37     return (env->interrupt_request &
     38             (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB));
     39 }
     40 
     41 static inline int cpu_halted(CPUState *env) {
     42     if (!env->halted)
     43         return 0;
     44     /* An interrupt wakes the CPU even if the I and F CPSR bits are
     45        set.  We use EXITTB to silently wake CPU without causing an
     46        actual interrupt.  */
     47     if (cpu_has_work(env)) {
     48         env->halted = 0;
     49         return 0;
     50     }
     51     return EXCP_HALTED;
     52 }
     53 
     54 #if !defined(CONFIG_USER_ONLY)
     55 #include "softmmu_exec.h"
     56 #endif
     57 
     58 void raise_exception(int);
     59 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
     60 {
     61     env->regs[15] = tb->pc;
     62 }
     63 
     64