linux-user/m68k/target_cpu.h

   1 /*
   2  * m68k specific CPU ABI and functions for linux-user
   3  *
   4  * Copyright (c) 2005-2007 CodeSourcery
   5  * Written by Paul Brook
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef M68K_TARGET_CPU_H
  22 #define M68K_TARGET_CPU_H
  23
  24 static inline void cpu_clone_regs_child(CPUM68KState *env, target_ulong newsp,
  25                                         unsigned flags)
  26 {
  27     if (newsp) {
  28         env->aregs[7] = newsp;
  29     }
  30     env->dregs[0] = 0;
  31 }
  32
  33 static inline void cpu_clone_regs_parent(CPUM68KState *env, unsigned flags)
  34 {
  35 }
  36
  37 static inline void cpu_set_tls(CPUM68KState *env, target_ulong newtls)
  38 {
  39     CPUState *cs = env_cpu(env);
  40     TaskState *ts = get_task_state(cs);
  41
  42     ts->tp_value = newtls;
  43 }
  44
  45 static inline abi_ulong get_sp_from_cpustate(CPUM68KState *state)
  46 {
  47     return state->aregs[7];
  48 }
  49 #endif