usb-redir: convert to QOM
[qemu.git] / dyngen-exec.h
1 /*
2 * dyngen defines for micro operation code
3 *
4 * Copyright (c) 2003 Fabrice Bellard
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 #if !defined(__DYNGEN_EXEC_H__)
20 #define __DYNGEN_EXEC_H__
21
22 #if defined(CONFIG_TCG_INTERPRETER)
23 /* The TCG interpreter does not need a special register AREG0,
24 * but it is possible to use one by defining AREG0.
25 * On i386, register edi seems to work. */
26 /* Run without special register AREG0 or use a value defined elsewhere. */
27 #elif defined(__i386__)
28 #define AREG0 "ebp"
29 #elif defined(__x86_64__)
30 #define AREG0 "r14"
31 #elif defined(_ARCH_PPC)
32 #define AREG0 "r27"
33 #elif defined(__arm__)
34 #define AREG0 "r6"
35 #elif defined(__hppa__)
36 #define AREG0 "r17"
37 #elif defined(__mips__)
38 #define AREG0 "s0"
39 #elif defined(__sparc__)
40 #ifdef CONFIG_SOLARIS
41 #define AREG0 "g2"
42 #else
43 #ifdef __sparc_v9__
44 #define AREG0 "g5"
45 #else
46 #define AREG0 "g6"
47 #endif
48 #endif
49 #elif defined(__s390__)
50 #define AREG0 "r10"
51 #elif defined(__alpha__)
52 /* Note $15 is the frame pointer, so anything in op-i386.c that would
53 require a frame pointer, like alloca, would probably loose. */
54 #define AREG0 "$15"
55 #elif defined(__mc68000)
56 #define AREG0 "%a5"
57 #elif defined(__ia64__)
58 #define AREG0 "r7"
59 #else
60 #error unsupported CPU
61 #endif
62
63 #if defined(AREG0)
64 register CPUState *env asm(AREG0);
65 #else
66 /* TODO: Try env = cpu_single_env. */
67 extern CPUState *env;
68 #endif
69
70 #endif /* !defined(__DYNGEN_EXEC_H__) */