[qemu.git] / dyngen-exec.h

/*
 *  dyngen defines for micro operation code
 *
 *  Copyright (c) 2003 Fabrice Bellard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */
#if !defined(__DYNGEN_EXEC_H__)
#define __DYNGEN_EXEC_H__

#if defined(CONFIG_TCG_INTERPRETER)
/* The TCG interpreter does not need a special register AREG0,
 * but it is possible to use one by defining AREG0.
 * On i386, register edi seems to work. */
/* Run without special register AREG0 or use a value defined elsewhere. */
#elif defined(__i386__)
#define AREG0 "ebp"
#elif defined(__x86_64__)
#define AREG0 "r14"
#elif defined(_ARCH_PPC)
#define AREG0 "r27"
#elif defined(__arm__)
#define AREG0 "r6"
#elif defined(__hppa__)
#define AREG0 "r17"
#elif defined(__mips__)
#define AREG0 "s0"
#elif defined(__sparc__)
#ifdef CONFIG_SOLARIS
#define AREG0 "g2"
#else
#ifdef __sparc_v9__
#define AREG0 "g5"
#else
#define AREG0 "g6"
#endif
#endif
#elif defined(__s390__)
#define AREG0 "r10"
#elif defined(__alpha__)
/* Note $15 is the frame pointer, so anything in op-i386.c that would
   require a frame pointer, like alloca, would probably loose.  */
#define AREG0 "$15"
#elif defined(__mc68000)
#define AREG0 "%a5"
#elif defined(__ia64__)
#define AREG0 "r7"
#else
#error unsupported CPU
#endif

#if defined(AREG0)
register CPUArchState *env asm(AREG0);
#else
/* TODO: Try env = cpu_single_env. */
extern CPUArchState *env;
#endif

#endif /* !defined(__DYNGEN_EXEC_H__) */
Commit	Line	Data
	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 CPUArchState *env asm(AREG0);
	65	#else
	66	/* TODO: Try env = cpu_single_env. */
	67	extern CPUArchState *env;
	68	#endif
	69
	70	#endif /* !defined(__DYNGEN_EXEC_H__) */