target-microblaze/exec.h

   1 /*
   2  *  Microblaze execution defines
   3  *
   4  *  Copyright (c) 2009 Edgar E. Iglesias
   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  * 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 "dyngen-exec.h"
  20
  21 register struct CPUMBState *env asm(AREG0);
  22
  23 #include "cpu.h"
  24 #include "exec-all.h"
  25
  26 #if !defined(CONFIG_USER_ONLY)
  27 #include "softmmu_exec.h"
  28 #endif
  29
  30 static inline int cpu_has_work(CPUState *env)
  31 {
  32     return (env->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI));
  33 }
  34
  35 static inline int cpu_halted(CPUState *env) {
  36         if (!env->halted)
  37                 return 0;
  38
  39         /* IRQ, NMI and GURU execeptions wakes us up.  */
  40         if (env->interrupt_request
  41             & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI)) {
  42                 env->halted = 0;
  43                 return 0;
  44         }
  45         return EXCP_HALTED;
  46 }
  47
  48 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
  49 {
  50     env->sregs[SR_PC] = tb->pc;
  51 }
  52