xref: /qemu/linux-user/m68k/target_cpu.h (revision d884e272)
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
50