File:  [Qemu by Fabrice Bellard] / qemu / target-ppc / exec.h
Revision 1.1.1.8 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:31:06 2018 UTC (3 years, 7 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0130, HEAD
qemu 0.13.0

    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: /* Precise emulation is needed to correctly emulate exception flags */
   30: #define USE_PRECISE_EMULATION 1
   31: 
   32: register struct CPUPPCState *env asm(AREG0);
   33: 
   34: #if !defined(CONFIG_USER_ONLY)
   35: #include "softmmu_exec.h"
   36: #endif /* !defined(CONFIG_USER_ONLY) */
   37: 
   38: static inline int cpu_has_work(CPUState *env)
   39: {
   40:     return (msr_ee && (env->interrupt_request & CPU_INTERRUPT_HARD));
   41: }
   42: 
   43: 
   44: static inline int cpu_halted(CPUState *env)
   45: {
   46:     if (!env->halted)
   47:         return 0;
   48:     if (cpu_has_work(env)) {
   49:         env->halted = 0;
   50:         return 0;
   51:     }
   52:     return EXCP_HALTED;
   53: }
   54: 
   55: static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
   56: {
   57:     env->nip = tb->pc;
   58: }
   59: 
   60: #endif /* !defined (__PPC_H__) */

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