[binutils.git] / sim / ppc / sim-endian.h

/*  This file is part of the program psim.

    Copyright (C) 1994-1995, Andrew Cagney <[email protected]>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    */


#ifndef _SIM_ENDIAN_H_
#define _SIM_ENDIAN_H_

#ifndef INLINE_SIM_ENDIAN
#define INLINE_SIM_ENDIAN
#endif


/* C byte conversion functions */

INLINE_SIM_ENDIAN unsigned_1 endian_h2t_1(unsigned_1 x);
INLINE_SIM_ENDIAN unsigned_2 endian_h2t_2(unsigned_2 x);
INLINE_SIM_ENDIAN unsigned_4 endian_h2t_4(unsigned_4 x);
INLINE_SIM_ENDIAN unsigned_8 endian_h2t_8(unsigned_8 x);

INLINE_SIM_ENDIAN unsigned_1 endian_t2h_1(unsigned_1 x);
INLINE_SIM_ENDIAN unsigned_2 endian_t2h_2(unsigned_2 x);
INLINE_SIM_ENDIAN unsigned_4 endian_t2h_4(unsigned_4 x);
INLINE_SIM_ENDIAN unsigned_8 endian_t2h_8(unsigned_8 x);

INLINE_SIM_ENDIAN unsigned_1 swap_1(unsigned_1 x);
INLINE_SIM_ENDIAN unsigned_2 swap_2(unsigned_2 x);
INLINE_SIM_ENDIAN unsigned_4 swap_4(unsigned_4 x);
INLINE_SIM_ENDIAN unsigned_8 swap_8(unsigned_8 x);


/* Host dependant:

   The CPP below defines information about the compilation host.  In
   particular it defines the macro's:

   	WITH_HOST_BYTE_ORDER	The byte order of the host. Could
				be any of LITTLE_ENDIAN, BIG_ENDIAN
				or 0 (unknown).  Those macro's also
				need to be defined.

	WITH_NTOH		Network byte order macros defined.
				Possible value is 32 or (maybe one
				day 64 because some 64bit network
				byte order macro is defined.
 */


/* NetBSD:

   NetBSD is easy, everything you could ever want is in a header file
   (well almost :-) */

#if defined(__NetBSD__)
# include <machine/endian.h>
# define WITH_NTOH 32 /* what about alpha? */
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
# endif
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
#  error "host endian incorrectly configured, check config.h"
# endif
#endif

/* Linux is similarly easy.  */

#if defined(__linux__)
# include <endian.h>
# include <asm/byteorder.h>
# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
#  define LITTLE_ENDIAN __LITTLE_ENDIAN
# endif
# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
#  define BIG_ENDIAN __BIG_ENDIAN
# endif
# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
#  define BYTE_ORDER __BYTE_ORDER
# endif
# if !defined(__alpha__)
#  define WITH_NTOH 32 /* what about alpha? */
# endif
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
# endif
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
#  error "host endian incorrectly configured, check config.h"
# endif
#endif

/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
   BIG_ENDIAN macro's */


/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */

#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif
#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif


/* SunOS on SPARC:

   Big endian last time I looked */

#if defined(sparc) || defined(__sparc__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
#  error "sun was big endian last time I looked ..."
# endif
#endif


/* Random x86

   Little endian last time I looked */

#if defined(i386) || defined(i486) || defined(i586) || defined(__i386__) || defined(__i486__) || defined(__i586__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
#  error "x86 was little endian last time I looked ..."
# endif
#endif

#if (defined (__i486__) || defined (__i586__)) && defined(__GNUC__) && WITH_BSWAP && WITH_NTOH
#undef  htonl
#undef  ntohl
#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
#endif


/* Configure defines WORDS_BIGENDIAN if the host is big endian.  */

#if (WITH_HOST_BYTE_ORDER == 0)
# undef WITH_HOST_BYTE_ORDER
# ifdef WORDS_BIGENDIAN
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
# else
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
#endif

/* SWAP:

   Some times a swap must always be performed, select the most
   effecient method to swap a collection of bytes.

   HOST BE        sw
   HOST LE      sw/ntoh
   HOST ??        sw

   */

#if (WITH_HOST_BYTE_ORDER \
     && WITH_NTOH \
     && WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN)
#define SWAP_1(X) (X)
#define SWAP_2(X) ntohs(X)
#define SWAP_4(X) ntohl(X)
#define SWAP_8(X) swap_8(X)
#else
#define SWAP_1(X) (X)
#define SWAP_2(X) swap_2(X)
#define SWAP_4(X) swap_4(X)
#define SWAP_8(X) swap_8(X)
#endif


/* CONVERSION:

   Convert between host and target byte orders by the most efficient
   method known (if needed at all)

                TARG BE   TARG LE   TARG ??
       HOST BE    ok       swap      swap
       HOST LE   htohl      ok      ok|ntohl
       HOST ??   ntohl     swap      swap

   */


/* FUNCTIONS:

   Returns the value swapped according to the host/target byte order */

/* no need to swap */
#if (WITH_HOST_BYTE_ORDER \
     && WITH_TARGET_BYTE_ORDER \
     && WITH_HOST_BYTE_ORDER == WITH_TARGET_BYTE_ORDER )
#define H2T_1(X) (X)
#define H2T_2(X) (X)
#define H2T_4(X) (X)
#define H2T_8(X) (X)
#define T2H_1(X) (X)
#define T2H_2(X) (X)
#define T2H_4(X) (X)
#define T2H_8(X) (X)
#endif

/* have ntoh and big endian target */
#if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN \
     && WITH_HOST_BYTE_ORDER != BIG_ENDIAN \
     && WITH_NTOH)
#define H2T_8(X) endian_h2t_8(X)
#define H2T_4(X) htonl(X)
#define H2T_2(X) htons(X)
#define H2T_1(X) (X)
#define T2H_8(X) endian_t2h_8(X)
#define T2H_4(X) htonl(X)
#define T2H_2(X) htons(X)
#define T2H_1(X) (X)
#endif

/* have ntoh, little host and unknown target */
#if (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN \
     && WITH_TARGET_BYTE_ORDER == 0 \
     && WITH_NTOH)
#define H2T_8(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : endian_h2t_8(X))
#define H2T_4(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : htonl(X))
#define H2T_2(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : htons(X))
#define H2T_1(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : (X))
#define T2H_8(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : endian_t2h_8(X))
#define T2H_4(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : htonl(X))
#define T2H_2(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : htons(X))
#define T2H_1(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
		  ? (X) : (X))
#endif

/* if all else fails use software */
#ifndef H2T_1
#define H2T_1(X) (X)
#define H2T_2(X) endian_h2t_2(X)
#define H2T_4(X) endian_h2t_4(X)
#define H2T_8(X) endian_h2t_8(X)
#define T2H_1(X) (X)
#define T2H_2(X) endian_t2h_2(X)
#define T2H_4(X) endian_t2h_4(X)
#define T2H_8(X) endian_t2h_8(X)
#endif


/* CONVERT IN PLACE:

   These macros, given an argument of unknown size, swap its value in
   place if a host/target conversion is required. */

#define H2T(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = H2T_1(VARIABLE); break; \
  case 2: VARIABLE = H2T_2(VARIABLE); break; \
  case 4: VARIABLE = H2T_4(VARIABLE); break; \
  case 8: VARIABLE = H2T_8(VARIABLE); break; \
  } \
} while (0)

#define T2H(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = T2H_1(VARIABLE); break; \
  case 2: VARIABLE = T2H_2(VARIABLE); break; \
  case 4: VARIABLE = T2H_4(VARIABLE); break; \
  case 8: VARIABLE = T2H_8(VARIABLE); break; \
  } \
} while (0)


/* TARGET WORD:

   Byte swap a quantity the size of the targets word */

#if (WITH_TARGET_WORD_BITSIZE == 64)
#define H2T_word(X) H2T_8(X)
#define T2H_word(X) T2H_8(X)
#endif
#if (WITH_TARGET_WORD_BITSIZE == 32)
#define H2T_word(X) H2T_4(X)
#define T2H_word(X) T2H_4(X)
#endif

#endif /* _SIM_ENDIAN_H_ */
Commit	Line	Data
1f1e5dd8 MM	1	/* This file is part of the program psim.
	2
	3	Copyright (C) 1994-1995, Andrew Cagney <[email protected]>
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 2 of the License, or
	8	(at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program; if not, write to the Free Software
	17	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	18
	19	*/
	20
	21
	22	#ifndef _SIM_ENDIAN_H_
	23	#define _SIM_ENDIAN_H_
	24
	25	#ifndef INLINE_SIM_ENDIAN
	26	#define INLINE_SIM_ENDIAN
	27	#endif
	28
	29
	30	/* C byte conversion functions */
	31
	32	INLINE_SIM_ENDIAN unsigned_1 endian_h2t_1(unsigned_1 x);
	33	INLINE_SIM_ENDIAN unsigned_2 endian_h2t_2(unsigned_2 x);
	34	INLINE_SIM_ENDIAN unsigned_4 endian_h2t_4(unsigned_4 x);
	35	INLINE_SIM_ENDIAN unsigned_8 endian_h2t_8(unsigned_8 x);
	36
	37	INLINE_SIM_ENDIAN unsigned_1 endian_t2h_1(unsigned_1 x);
	38	INLINE_SIM_ENDIAN unsigned_2 endian_t2h_2(unsigned_2 x);
	39	INLINE_SIM_ENDIAN unsigned_4 endian_t2h_4(unsigned_4 x);
	40	INLINE_SIM_ENDIAN unsigned_8 endian_t2h_8(unsigned_8 x);
	41
	42	INLINE_SIM_ENDIAN unsigned_1 swap_1(unsigned_1 x);
	43	INLINE_SIM_ENDIAN unsigned_2 swap_2(unsigned_2 x);
	44	INLINE_SIM_ENDIAN unsigned_4 swap_4(unsigned_4 x);
	45	INLINE_SIM_ENDIAN unsigned_8 swap_8(unsigned_8 x);
	46
	47
	48	/* Host dependant:
	49
	50	The CPP below defines information about the compilation host. In
	51	particular it defines the macro's:
	52
	53	WITH_HOST_BYTE_ORDER The byte order of the host. Could
	54	be any of LITTLE_ENDIAN, BIG_ENDIAN
	55	or 0 (unknown). Those macro's also
	56	need to be defined.
	57
	58	WITH_NTOH Network byte order macros defined.
	59	Possible value is 32 or (maybe one
	60	day 64 because some 64bit network
	61	byte order macro is defined.
	62	*/
	63
	64
65	/* NetBSD:
66
67	NetBSD is easy, everything you could ever want is in a header file
68	(well almost :-) */
69
70	#if defined(__NetBSD__)
71	# include <machine/endian.h>
72	# define WITH_NTOH 32 /* what about alpha? */
73	# if (WITH_HOST_BYTE_ORDER == 0)
74	# undef WITH_HOST_BYTE_ORDER
75	# define WITH_HOST_BYTE_ORDER BYTE_ORDER
76	# endif
77	# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
78	# error "host endian incorrectly configured, check config.h"
79	# endif
80	#endif
81
82	/* Linux is similarly easy. */
83
84	#if defined(__linux__)
85	# include <endian.h>
86	# include <asm/byteorder.h>
87	# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
88	# define LITTLE_ENDIAN __LITTLE_ENDIAN
89	# endif
90	# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
91	# define BIG_ENDIAN __BIG_ENDIAN
92	# endif
93	# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
94	# define BYTE_ORDER __BYTE_ORDER
95	# endif
96	# if !defined(__alpha__)
97	# define WITH_NTOH 32 /* what about alpha? */
98	# endif
99	# if (WITH_HOST_BYTE_ORDER == 0)
100	# undef WITH_HOST_BYTE_ORDER
101	# define WITH_HOST_BYTE_ORDER BYTE_ORDER
102	# endif
103	# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
104	# error "host endian incorrectly configured, check config.h"
105	# endif
106	#endif
107
108	/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
109	BIG_ENDIAN macro's */
110
111
112	/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
113
114	#ifndef LITTLE_ENDIAN
115	#define LITTLE_ENDIAN 1234
116	#endif
117	#ifndef BIG_ENDIAN
118	#define BIG_ENDIAN 4321
119	#endif
120
121
122	/* SunOS on SPARC:
123
124	Big endian last time I looked */
125
126	#if defined(sparc) \|\| defined(__sparc__)
127	# if (WITH_HOST_BYTE_ORDER == 0)
128	# undef WITH_HOST_BYTE_ORDER
129	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
130	# endif
131	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
132	# error "sun was big endian last time I looked ..."
133	# endif
134	#endif
135
136
137	/* Random x86
138
139	Little endian last time I looked */
140
141	#if defined(i386) \|\| defined(i486) \|\| defined(i586) \|\| defined(__i386__) \|\| defined(__i486__) \|\| defined(__i586__)
142	# if (WITH_HOST_BYTE_ORDER == 0)
143	# undef WITH_HOST_BYTE_ORDER
144	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
145	# endif
146	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
147	# error "x86 was little endian last time I looked ..."
148	# endif
149	#endif
150
151	#if (defined (__i486__) \|\| defined (__i586__)) && defined(__GNUC__) && WITH_BSWAP && WITH_NTOH
152	#undef htonl
153	#undef ntohl
154	#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
155	#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
156	#endif
157
158
159	/* Configure defines WORDS_BIGENDIAN if the host is big endian. */
160
161	#if (WITH_HOST_BYTE_ORDER == 0)
162	# undef WITH_HOST_BYTE_ORDER
163	# ifdef WORDS_BIGENDIAN
164	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
165	# else
166	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
167	# endif
168	#endif
169
170	/* SWAP:
171
172	Some times a swap must always be performed, select the most
173	effecient method to swap a collection of bytes.
174
175	HOST BE sw
176	HOST LE sw/ntoh
177	HOST ?? sw
178
179	*/
180
181	#if (WITH_HOST_BYTE_ORDER \
182	&& WITH_NTOH \
183	&& WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN)
184	#define SWAP_1(X) (X)
185	#define SWAP_2(X) ntohs(X)
186	#define SWAP_4(X) ntohl(X)
187	#define SWAP_8(X) swap_8(X)
188	#else
189	#define SWAP_1(X) (X)
190	#define SWAP_2(X) swap_2(X)
191	#define SWAP_4(X) swap_4(X)
192	#define SWAP_8(X) swap_8(X)
193	#endif
194
195
196	/* CONVERSION:
197
198	Convert between host and target byte orders by the most efficient
199	method known (if needed at all)
200
201	TARG BE TARG LE TARG ??
202	HOST BE ok swap swap
203	HOST LE htohl ok ok\|ntohl
204	HOST ?? ntohl swap swap
205
206	*/
207
208
209	/* FUNCTIONS:
210
211	Returns the value swapped according to the host/target byte order */
212
213	/* no need to swap */
214	#if (WITH_HOST_BYTE_ORDER \
215	&& WITH_TARGET_BYTE_ORDER \
216	&& WITH_HOST_BYTE_ORDER == WITH_TARGET_BYTE_ORDER )
217	#define H2T_1(X) (X)
218	#define H2T_2(X) (X)
219	#define H2T_4(X) (X)
220	#define H2T_8(X) (X)
221	#define T2H_1(X) (X)
222	#define T2H_2(X) (X)
223	#define T2H_4(X) (X)
224	#define T2H_8(X) (X)
225	#endif
226
227	/* have ntoh and big endian target */
228	#if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN \
229	&& WITH_HOST_BYTE_ORDER != BIG_ENDIAN \
230	&& WITH_NTOH)
231	#define H2T_8(X) endian_h2t_8(X)
232	#define H2T_4(X) htonl(X)
233	#define H2T_2(X) htons(X)
234	#define H2T_1(X) (X)
235	#define T2H_8(X) endian_t2h_8(X)
236	#define T2H_4(X) htonl(X)
237	#define T2H_2(X) htons(X)
238	#define T2H_1(X) (X)
239	#endif
240
241	/* have ntoh, little host and unknown target */
242	#if (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN \
243	&& WITH_TARGET_BYTE_ORDER == 0 \
244	&& WITH_NTOH)
245	#define H2T_8(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
246	? (X) : endian_h2t_8(X))
247	#define H2T_4(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
248	? (X) : htonl(X))
249	#define H2T_2(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
250	? (X) : htons(X))
251	#define H2T_1(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
252	? (X) : (X))
253	#define T2H_8(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
254	? (X) : endian_t2h_8(X))
255	#define T2H_4(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
256	? (X) : htonl(X))
257	#define T2H_2(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
258	? (X) : htons(X))
259	#define T2H_1(X) (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER \
260	? (X) : (X))
261	#endif
262
263	/* if all else fails use software */
264	#ifndef H2T_1
265	#define H2T_1(X) (X)
266	#define H2T_2(X) endian_h2t_2(X)
267	#define H2T_4(X) endian_h2t_4(X)
268	#define H2T_8(X) endian_h2t_8(X)
269	#define T2H_1(X) (X)
270	#define T2H_2(X) endian_t2h_2(X)
271	#define T2H_4(X) endian_t2h_4(X)
272	#define T2H_8(X) endian_t2h_8(X)
273	#endif
274
275
276	/* CONVERT IN PLACE:
277
278	These macros, given an argument of unknown size, swap its value in
279	place if a host/target conversion is required. */
280
281	#define H2T(VARIABLE) \
282	do { \
283	switch (sizeof(VARIABLE)) { \
284	case 1: VARIABLE = H2T_1(VARIABLE); break; \
285	case 2: VARIABLE = H2T_2(VARIABLE); break; \
286	case 4: VARIABLE = H2T_4(VARIABLE); break; \
287	case 8: VARIABLE = H2T_8(VARIABLE); break; \
288	} \
289	} while (0)
290
291	#define T2H(VARIABLE) \
292	do { \
293	switch (sizeof(VARIABLE)) { \
294	case 1: VARIABLE = T2H_1(VARIABLE); break; \
295	case 2: VARIABLE = T2H_2(VARIABLE); break; \
296	case 4: VARIABLE = T2H_4(VARIABLE); break; \
297	case 8: VARIABLE = T2H_8(VARIABLE); break; \
298	} \
299	} while (0)
300
301
302	/* TARGET WORD:
303
304	Byte swap a quantity the size of the targets word */
305
306	#if (WITH_TARGET_WORD_BITSIZE == 64)
307	#define H2T_word(X) H2T_8(X)
308	#define T2H_word(X) T2H_8(X)
309	#endif
310	#if (WITH_TARGET_WORD_BITSIZE == 32)
311	#define H2T_word(X) H2T_4(X)
312	#define T2H_word(X) T2H_4(X)
313	#endif
314
315	#endif /* _SIM_ENDIAN_H_ */