configure: fix --meson=/path/to/meson
[qemu.git] / target / ppc / cpu.c
1 /*
2 * PowerPC CPU routines for qemu.
3 *
4 * Copyright (c) 2017 Nikunj A Dadhania, IBM Corporation.
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
20 #include "qemu/osdep.h"
21 #include "cpu.h"
22 #include "cpu-models.h"
23
24 target_ulong cpu_read_xer(CPUPPCState *env)
25 {
26 if (is_isa300(env)) {
27 return env->xer | (env->so << XER_SO) |
28 (env->ov << XER_OV) | (env->ca << XER_CA) |
29 (env->ov32 << XER_OV32) | (env->ca32 << XER_CA32);
30 }
31
32 return env->xer | (env->so << XER_SO) | (env->ov << XER_OV) |
33 (env->ca << XER_CA);
34 }
35
36 void cpu_write_xer(CPUPPCState *env, target_ulong xer)
37 {
38 env->so = (xer >> XER_SO) & 1;
39 env->ov = (xer >> XER_OV) & 1;
40 env->ca = (xer >> XER_CA) & 1;
41 /* write all the flags, while reading back check of isa300 */
42 env->ov32 = (xer >> XER_OV32) & 1;
43 env->ca32 = (xer >> XER_CA32) & 1;
44 env->xer = xer & ~((1ul << XER_SO) |
45 (1ul << XER_OV) | (1ul << XER_CA) |
46 (1ul << XER_OV32) | (1ul << XER_CA32));
47 }