File:  [Qemu by Fabrice Bellard] / qemu / dyngen-exec.h
Revision 1.1.1.12 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:17:29 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1001, HEAD
qemu 1.0.1

    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 "r7"
   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__) */

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