linux-user/sh4/target_cpu.h

   1 /*
   2  * SH4 specific CPU ABI and functions for linux-user
   3  *
   4  * Copyright (c) 2005 Samuel Tardieu
   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 2.1 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 #ifndef SH4_TARGET_CPU_H
  20 #define SH4_TARGET_CPU_H
  21
  22 static inline void cpu_clone_regs_child(CPUSH4State *env, target_ulong newsp,
  23                                         unsigned flags)
  24 {
  25     if (newsp) {
  26         env->gregs[15] = newsp;
  27     }
  28     env->gregs[0] = 0;
  29 }
  30
  31 static inline void cpu_clone_regs_parent(CPUSH4State *env, unsigned flags)
  32 {
  33 }
  34
  35 static inline void cpu_set_tls(CPUSH4State *env, target_ulong newtls)
  36 {
  37   env->gbr = newtls;
  38 }
  39
  40 static inline abi_ulong get_sp_from_cpustate(CPUSH4State *state)
  41 {
  42     return state->gregs[15];
  43 }
  44 #endif