target-ppc/exec.h

   1 /*
   2  *  PowerPC emulation definitions for qemu.
   3  *
   4  *  Copyright (c) 2003-2007 Jocelyn Mayer
   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 #if !defined (__PPC_H__)
  20 #define __PPC_H__
  21
  22 #include "config.h"
  23
  24 #include "dyngen-exec.h"
  25
  26 #include "cpu.h"
  27 #include "exec-all.h"
  28
  29 register struct CPUPPCState *env asm(AREG0);
  30
  31 #if !defined(CONFIG_USER_ONLY)
  32 #include "softmmu_exec.h"
  33 #endif /* !defined(CONFIG_USER_ONLY) */
  34
  35 static inline int cpu_has_work(CPUState *env)
  36 {
  37     return (msr_ee && (env->interrupt_request & CPU_INTERRUPT_HARD));
  38 }
  39
  40
  41 static inline int cpu_halted(CPUState *env)
  42 {
  43     if (!env->halted)
  44         return 0;
  45     if (cpu_has_work(env)) {
  46         env->halted = 0;
  47         return 0;
  48     }
  49     return EXCP_HALTED;
  50 }
  51
  52 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
  53 {
  54     env->nip = tb->pc;
  55 }
  56
  57 #endif /* !defined (__PPC_H__) */