xref: /qemu/linux-user/hppa/target_cpu.h (revision fc37dcfe1a049090e72fd3f4810f0b221cc5399c)
1925ccf32SRichard Henderson /*
2925ccf32SRichard Henderson  * HPPA specific CPU ABI and functions for linux-user
3925ccf32SRichard Henderson  *
4925ccf32SRichard Henderson  *  Copyright (c) 2016  Richard Henderson
5925ccf32SRichard Henderson  *
6925ccf32SRichard Henderson  * This library is free software; you can redistribute it and/or
7925ccf32SRichard Henderson  * modify it under the terms of the GNU Lesser General Public
8925ccf32SRichard Henderson  * License as published by the Free Software Foundation; either
9925ccf32SRichard Henderson  * version 2 of the License, or (at your option) any later version.
10925ccf32SRichard Henderson  *
11925ccf32SRichard Henderson  * This library is distributed in the hope that it will be useful,
12925ccf32SRichard Henderson  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13925ccf32SRichard Henderson  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14925ccf32SRichard Henderson  * Lesser General Public License for more details.
15925ccf32SRichard Henderson  *
16925ccf32SRichard Henderson  * You should have received a copy of the GNU Lesser General Public
17925ccf32SRichard Henderson  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18925ccf32SRichard Henderson  */
19925ccf32SRichard Henderson #ifndef ALPHA_TARGET_CPU_H
20925ccf32SRichard Henderson #define ALPHA_TARGET_CPU_H
21925ccf32SRichard Henderson 
22925ccf32SRichard Henderson static inline void cpu_clone_regs(CPUHPPAState *env, target_ulong newsp)
23925ccf32SRichard Henderson {
24925ccf32SRichard Henderson     if (newsp) {
25925ccf32SRichard Henderson         env->gr[30] = newsp;
26925ccf32SRichard Henderson     }
27*fc37dcfeSRichard Henderson     /* Indicate child in return value.  */
28925ccf32SRichard Henderson     env->gr[28] = 0;
29*fc37dcfeSRichard Henderson     /* Return from the syscall.  */
30*fc37dcfeSRichard Henderson     env->iaoq_f = env->gr[31];
31*fc37dcfeSRichard Henderson     env->iaoq_b = env->gr[31] + 4;
32925ccf32SRichard Henderson }
33925ccf32SRichard Henderson 
34925ccf32SRichard Henderson static inline void cpu_set_tls(CPUHPPAState *env, target_ulong newtls)
35925ccf32SRichard Henderson {
36925ccf32SRichard Henderson     env->cr27 = newtls;
37925ccf32SRichard Henderson }
38925ccf32SRichard Henderson 
39925ccf32SRichard Henderson #endif
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