[deliverable/binutils-gdb.git] / sim / common / sim-config.h

/*  This file is part of the program psim.

    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>

    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 _PSIM_CONFIG_H_
#define _PSIM_CONFIG_H_

/* 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.

 */


/* NetBSD:

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

#if defined(__NetBSD__)
# include <machine/endian.h>
# 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 (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 (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__)
# 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 (__i686__)) && defined(__GNUC__) && WITH_BSWAP
#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

/* Power or PowerPC running AIX  */
#if defined(_POWER) && defined(_AIX)
# 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 "Power/PowerPC AIX was big endian last time I looked ..."
# endif
#endif

/* Solaris running PowerPC */
#if defined(__PPC) && defined(__sun__)
# 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 "Solaris on PowerPCs was little endian last time I looked ..."
# endif
#endif

/* HP/PA */
#if defined(__hppa__)
# 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 "HP/PA was big endian last time I looked ..."
# endif
#endif

/* Big endian MIPS */
#if defined(__MIPSEB__)
# 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 "MIPSEB was big endian last time I looked ..."
# endif
#endif

/* Little endian MIPS */
#if defined(__MIPSEL__)
# 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 "MIPSEL was little endian last time I looked ..."
# endif
#endif

/* Windows NT */
#if defined(__WIN32__)
# 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 "Windows NT was little endian last time I looked ..."
# endif
#endif

/* Alpha running DEC unix */
#if defined(__osf__) && defined(__alpha__)
# 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 "AXP running DEC unix was little endian last time I looked ..."
# endif
#endif


/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
   BIG_ENDIAN definitions available.  */
\f
/* Until devices and tree properties are sorted out, tell sim-config.c
   not to call the tree_find_foo fns.  */
#define WITH_TREE_PROPERTIES 0


/* endianness of the host/target:

   If the build process is aware (at compile time) of the endianness
   of the host/target it is able to eliminate slower generic endian
   handling code.

   Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */

#ifndef WITH_HOST_BYTE_ORDER
#define WITH_HOST_BYTE_ORDER		0 /*unknown*/
#endif

#ifndef WITH_TARGET_BYTE_ORDER
#define WITH_TARGET_BYTE_ORDER		0 /*unknown*/
#endif

#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
#endif

extern int current_host_byte_order;
#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
				 ? WITH_HOST_BYTE_ORDER \
				 : current_host_byte_order)
extern int current_target_byte_order;
#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
				   ? WITH_TARGET_BYTE_ORDER \
				   : current_target_byte_order)


/* XOR endian.

   In addition to the above, the simulator can support the horrible
   XOR endian mode (as found in the PowerPC and MIPS ISA).  See
   sim-core for more information.

   If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes
   potentially involved in the XOR munge. A typical value is 8. */

#ifndef WITH_XOR_ENDIAN
#define WITH_XOR_ENDIAN		0
#endif


/* Intel host BSWAP support:

   Whether to use bswap on the 486 and pentiums rather than the 386
   sequence that uses xchgb/rorl/xchgb */
#ifndef WITH_BSWAP
#define	WITH_BSWAP 0
#endif


/* SMP support:

   Sets a limit on the number of processors that can be simulated.  If
   WITH_SMP is set to zero (0), the simulator is restricted to
   suporting only one processor (and as a consequence leaves the SMP
   code out of the build process).

   The actual number of processors is taken from the device
   /options/smp@<nr-cpu> */

#if defined (WITH_SMP) && (WITH_SMP > 0)
#define MAX_NR_PROCESSORS		WITH_SMP
#endif

#ifndef MAX_NR_PROCESSORS
#define MAX_NR_PROCESSORS		1
#endif


/* Size of target word, address and OpenFirmware Cell:

   The target word size is determined by the natural size of its
   reginsters.

   On most hosts, the address and cell are the same size as a target
   word.  */

#ifndef WITH_TARGET_WORD_BITSIZE
#define WITH_TARGET_WORD_BITSIZE        32
#endif

#ifndef WITH_TARGET_ADDRESS_BITSIZE
#define WITH_TARGET_ADDRESS_BITSIZE	WITH_TARGET_WORD_BITSIZE
#endif

#ifndef WITH_TARGET_CELL_BITSIZE
#define WITH_TARGET_CELL_BITSIZE	WITH_TARGET_WORD_BITSIZE
#endif


/* Most significant bit of target:

   Set this according to your target's bit numbering convention.  For
   the PowerPC it is zero, for many other targets it is 31 or 63.

   For targets that can both have either 32 or 64 bit words and number
   MSB as 31, 63.  Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */

#ifndef WITH_TARGET_WORD_MSB
#define WITH_TARGET_WORD_MSB            0
#endif


/* Program environment:

   Three environments are available - UEA (user), VEA (virtual) and
   OEA (perating).  The former two are environment that users would
   expect to see (VEA includes things like coherency and the time
   base) while OEA is what an operating system expects to see.  By
   setting these to specific values, the build process is able to
   eliminate non relevent environment code.

   CURRENT_ENVIRONMENT specifies which of vea or oea is required for
   the current runtime.

   ALL_ENVIRONMENT is used during configuration as a value for
   WITH_ENVIRONMENT to indicate the choice is runtime selectable.
   The default is then USER_ENVIRONMENT [since allowing the user to choose
   the default at configure time seems like featuritis and since people using
   OPERATING_ENVIRONMENT have more to worry about than selecting the default].
   ALL_ENVIRONMENT is also used to set `current_environment' to the
   "unknown" state.  */

enum sim_environment {
  ALL_ENVIRONMENT,
  USER_ENVIRONMENT,
  VIRTUAL_ENVIRONMENT,
  OPERATING_ENVIRONMENT
};

/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so.  */
#ifdef WITH_ENVIRONMENT
#define SIM_HAVE_ENVIRONMENT
#endif

/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its
   configure.in, the only supported environment is the user environment.  */
#ifndef WITH_ENVIRONMENT
#define WITH_ENVIRONMENT USER_ENVIRONMENT
#endif

#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
			     ? WITH_ENVIRONMENT \
			     : USER_ENVIRONMENT)

extern enum sim_environment current_environment;
#define CURRENT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
			     ? WITH_ENVIRONMENT \
			     : current_environment)


/* Callback & Modulo Memory.

   Core includes a builtin memory type (raw_memory) that is
   implemented using an array.  raw_memory does not require any
   additional functions etc.

   Callback memory is where the core calls a core device for the data
   it requires.  Callback memory can be layered using priorities.

   Modulo memory is a variation on raw_memory where ADDRESS & (MODULO
   - 1) is used as the index into the memory array.

   The OEA model uses callback memory for devices.

   The VEA model uses callback memory to capture `page faults'.

   BTW, while raw_memory could have been implemented as a callback,
   profiling has shown that there is a biger win (at least for the
   x86) in eliminating a function call for the most common
   (raw_memory) case. */

#ifndef WITH_CALLBACK_MEMORY
#define WITH_CALLBACK_MEMORY		1
#endif

#ifndef WITH_MODULO_MEMORY
#define WITH_MODULO_MEMORY              0
#endif


/* Alignment:

   A processor architecture may or may not handle miss aligned
   transfers.

   As alternatives: both little and big endian modes take an exception
   (STRICT_ALIGNMENT); big and little endian models handle mis aligned
   transfers (NONSTRICT_ALIGNMENT); or the address is forced into
   alignment using a mask (FORCED_ALIGNMENT).

   Mixed alignment should be specified when the simulator needs to be
   able to change the alignment requirements on the fly (eg for
   bi-endian support). */

enum sim_alignments {
  MIXED_ALIGNMENT,
  NONSTRICT_ALIGNMENT,
  STRICT_ALIGNMENT,
  FORCED_ALIGNMENT,
};

extern enum sim_alignments current_alignment;

#if !defined (WITH_ALIGNMENT)
#define WITH_ALIGNMENT 0
#endif

#if !defined (WITH_DEFAULT_ALIGNMENT)
#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */
#endif


#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \
			   ? WITH_ALIGNMENT \
			   : current_alignment)


/* Floating point suport:

   Should the processor trap for all floating point instructions (as
   if the hardware wasn't implemented) or implement the floating point
   instructions directly. */

#if defined (WITH_FLOATING_POINT)

#define SOFT_FLOATING_POINT		1
#define HARD_FLOATING_POINT		2

extern int current_floating_point;
#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \
				? WITH_FLOATING_POINT \
				: current_floating_point)

#endif


/* Engine module.

   Use the common start/stop/restart framework (sim-engine).
   Simulators using the other modules but not the engine should define
   WITH_ENGINE=0. */

#ifndef WITH_ENGINE
#define WITH_ENGINE			1
#endif


/* Debugging:

   Control the inclusion of debugging code.
   Debugging is only turned on in rare circumstances [say during development]
   and is not intended to be turned on otherwise.  */

#ifndef WITH_DEBUG
#define WITH_DEBUG			0
#endif

/* Include the tracing code.  Disabling this eliminates all tracing
   code */

#ifndef WITH_TRACE
#define WITH_TRACE                      (-1)
#endif

/* Include the profiling code.  Disabling this eliminates all profiling
   code.  */

#ifndef WITH_PROFILE
#define WITH_PROFILE			(-1)
#endif


/* include code that checks assertions scattered through out the
   program */

#ifndef WITH_ASSERT
#define WITH_ASSERT			1
#endif


/* Whether to check instructions for reserved bits being set */

/* #define WITH_RESERVED_BITS		1 */


/* include monitoring code */

#define MONITOR_INSTRUCTION_ISSUE	1
#define MONITOR_LOAD_STORE_UNIT		2
/* do not define WITH_MON by default */
#define DEFAULT_WITH_MON		(MONITOR_LOAD_STORE_UNIT \
					 | MONITOR_INSTRUCTION_ISSUE)


/* Current CPU model (models are in the generated models.h include file)  */
#ifndef WITH_MODEL
#define WITH_MODEL			0
#endif

#define CURRENT_MODEL (WITH_MODEL	\
		       ? WITH_MODEL	\
		       : current_model)

#ifndef WITH_DEFAULT_MODEL
#define WITH_DEFAULT_MODEL		DEFAULT_MODEL
#endif

#define MODEL_ISSUE_IGNORE		(-1)
#define MODEL_ISSUE_PROCESS		1

#ifndef WITH_MODEL_ISSUE
#define WITH_MODEL_ISSUE		0
#endif

extern int current_model_issue;
#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE	\
			     ? WITH_MODEL_ISSUE	\
			     : current_model_issue)


/* Whether or not input/output just uses stdio, or uses printf_filtered for
   output, and polling input for input.  */

#define DONT_USE_STDIO			2
#define DO_USE_STDIO			1

#ifndef WITH_STDIO
#define WITH_STDIO			0
#endif

extern int current_stdio;
#define CURRENT_STDIO (WITH_STDIO	\
		       ? WITH_STDIO     \
		       : current_stdio)


/* Specify that configured calls pass parameters in registers when the
   convention is that they are placed on the stack */

#ifndef WITH_REGPARM
#define WITH_REGPARM                   0
#endif

/* Specify that configured calls use an alternative calling mechanism */

#ifndef WITH_STDCALL
#define WITH_STDCALL                   0
#endif


/* complete/verify/print the simulator configuration */

extern SIM_RC sim_config
(SIM_DESC sd);


extern void print_sim_config (SIM_DESC sd);


#endif /* _PSIM_CONFIG_H */
Commit	Line	Data
a35e91c3 AC	1	/* This file is part of the program psim.
	2
	3	Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
	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 _PSIM_CONFIG_H_
	23	#define _PSIM_CONFIG_H_
	24
7ec396d2 AC	25	/* Host dependant:
	26
	27	The CPP below defines information about the compilation host. In
	28	particular it defines the macro's:
	29
	30	WITH_HOST_BYTE_ORDER The byte order of the host. Could
	31	be any of LITTLE_ENDIAN, BIG_ENDIAN
	32	or 0 (unknown). Those macro's also
	33	need to be defined.
	34
	35	*/
	36
	37
	38	/* NetBSD:
	39
	40	NetBSD is easy, everything you could ever want is in a header file
	41	(well almost :-) */
	42
	43	#if defined(__NetBSD__)
	44	# include <machine/endian.h>
	45	# if (WITH_HOST_BYTE_ORDER == 0)
	46	# undef WITH_HOST_BYTE_ORDER
	47	# define WITH_HOST_BYTE_ORDER BYTE_ORDER
	48	# endif
	49	# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
	50	# error "host endian incorrectly configured, check config.h"
	51	# endif
	52	#endif
	53
	54	/* Linux is similarly easy. */
	55
	56	#if defined(__linux__)
	57	# include <endian.h>
	58	# include <asm/byteorder.h>
	59	# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
	60	# define LITTLE_ENDIAN __LITTLE_ENDIAN
	61	# endif
	62	# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
	63	# define BIG_ENDIAN __BIG_ENDIAN
	64	# endif
	65	# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
	66	# define BYTE_ORDER __BYTE_ORDER
	67	# endif
	68	# if (WITH_HOST_BYTE_ORDER == 0)
	69	# undef WITH_HOST_BYTE_ORDER
	70	# define WITH_HOST_BYTE_ORDER BYTE_ORDER
	71	# endif
	72	# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
	73	# error "host endian incorrectly configured, check config.h"
	74	# endif
	75	#endif
	76
	77	/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
	78	BIG_ENDIAN macro's */
	79
	80
	81	/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
	82
	83	#ifndef LITTLE_ENDIAN
	84	#define LITTLE_ENDIAN 1234
	85	#endif
	86	#ifndef BIG_ENDIAN
	87	#define BIG_ENDIAN 4321
	88	#endif
89
90
91	/* SunOS on SPARC:
92
93	Big endian last time I looked */
94
95	#if defined(sparc) \|\| defined(__sparc__)
96	# if (WITH_HOST_BYTE_ORDER == 0)
97	# undef WITH_HOST_BYTE_ORDER
98	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
99	# endif
100	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
101	# error "sun was big endian last time I looked ..."
102	# endif
103	#endif
104
105
106	/* Random x86
107
108	Little endian last time I looked */
109
110	#if defined(i386) \|\| defined(i486) \|\| defined(i586) \|\| defined (i686) \|\| defined(__i386__) \|\| defined(__i486__) \|\| defined(__i586__) \|\| defined (__i686__)
111	# if (WITH_HOST_BYTE_ORDER == 0)
112	# undef WITH_HOST_BYTE_ORDER
113	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
114	# endif
115	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
116	# error "x86 was little endian last time I looked ..."
117	# endif
118	#endif
119
120	#if (defined (__i486__) \|\| defined (__i586__) \|\| defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP
121	#undef htonl
122	#undef ntohl
123	#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
124	#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
125	#endif
126
127	/* Power or PowerPC running AIX */
128	#if defined(_POWER) && defined(_AIX)
129	# if (WITH_HOST_BYTE_ORDER == 0)
130	# undef WITH_HOST_BYTE_ORDER
131	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
132	# endif
133	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
134	# error "Power/PowerPC AIX was big endian last time I looked ..."
135	# endif
136	#endif
137
138	/* Solaris running PowerPC */
139	#if defined(__PPC) && defined(__sun__)
140	# if (WITH_HOST_BYTE_ORDER == 0)
141	# undef WITH_HOST_BYTE_ORDER
142	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
143	# endif
144	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
145	# error "Solaris on PowerPCs was little endian last time I looked ..."
146	# endif
147	#endif
148
149	/* HP/PA */
150	#if defined(__hppa__)
151	# if (WITH_HOST_BYTE_ORDER == 0)
152	# undef WITH_HOST_BYTE_ORDER
153	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
154	# endif
155	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
156	# error "HP/PA was big endian last time I looked ..."
157	# endif
158	#endif
159
160	/* Big endian MIPS */
161	#if defined(__MIPSEB__)
162	# if (WITH_HOST_BYTE_ORDER == 0)
163	# undef WITH_HOST_BYTE_ORDER
164	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
165	# endif
166	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
167	# error "MIPSEB was big endian last time I looked ..."
168	# endif
169	#endif
170
171	/* Little endian MIPS */
172	#if defined(__MIPSEL__)
173	# if (WITH_HOST_BYTE_ORDER == 0)
174	# undef WITH_HOST_BYTE_ORDER
175	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
176	# endif
177	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
178	# error "MIPSEL was little endian last time I looked ..."
179	# endif
180	#endif
181
182	/* Windows NT */
183	#if defined(__WIN32__)
184	# if (WITH_HOST_BYTE_ORDER == 0)
185	# undef WITH_HOST_BYTE_ORDER
186	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
187	# endif
188	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
189	# error "Windows NT was little endian last time I looked ..."
190	# endif
191	#endif
192
193	/* Alpha running DEC unix */
194	#if defined(__osf__) && defined(__alpha__)
195	# if (WITH_HOST_BYTE_ORDER == 0)
196	# undef WITH_HOST_BYTE_ORDER
197	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
198	# endif
199	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
200	# error "AXP running DEC unix was little endian last time I looked ..."
201	# endif
202	#endif
203
204
205	/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
206	BIG_ENDIAN definitions available. */
412c4e94 AC	207	\f
	208	/* Until devices and tree properties are sorted out, tell sim-config.c
	209	not to call the tree_find_foo fns. */
	210	#define WITH_TREE_PROPERTIES 0
7ec396d2	211
a35e91c3 AC	212
	213	/* endianness of the host/target:
	214
	215	If the build process is aware (at compile time) of the endianness
	216	of the host/target it is able to eliminate slower generic endian
	217	handling code.
	218
	219	Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */
	220
	221	#ifndef WITH_HOST_BYTE_ORDER
	222	#define WITH_HOST_BYTE_ORDER 0 /unknown/
	223	#endif
	224
	225	#ifndef WITH_TARGET_BYTE_ORDER
	226	#define WITH_TARGET_BYTE_ORDER 0 /unknown/
	227	#endif
	228
247fccde AC	229	#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
	230	#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
	231	#endif
	232
a35e91c3 AC	233	extern int current_host_byte_order;
	234	#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
	235	? WITH_HOST_BYTE_ORDER \
	236	: current_host_byte_order)
	237	extern int current_target_byte_order;
	238	#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
	239	? WITH_TARGET_BYTE_ORDER \
	240	: current_target_byte_order)
	241
	242
	243
	244	/* XOR endian.
	245
247fccde AC	246	In addition to the above, the simulator can support the horrible
	247	XOR endian mode (as found in the PowerPC and MIPS ISA). See
	248	sim-core for more information.
a35e91c3	249
247fccde AC	250	If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes
	251	potentially involved in the XOR munge. A typical value is 8. */
	252
	253	#ifndef WITH_XOR_ENDIAN
	254	#define WITH_XOR_ENDIAN 0
	255	#endif
a35e91c3 AC	256
	257
	258
	259	/* Intel host BSWAP support:
	260
	261	Whether to use bswap on the 486 and pentiums rather than the 386
	262	sequence that uses xchgb/rorl/xchgb */
	263	#ifndef WITH_BSWAP
	264	#define WITH_BSWAP 0
	265	#endif
	266
	267
	268
	269	/* SMP support:
	270
	271	Sets a limit on the number of processors that can be simulated. If
	272	WITH_SMP is set to zero (0), the simulator is restricted to
247fccde	273	suporting only one processor (and as a consequence leaves the SMP
a35e91c3 AC	274	code out of the build process).
	275
	276	The actual number of processors is taken from the device
	277	/options/smp@<nr-cpu> */
	278
412c4e94	279	#if defined (WITH_SMP) && (WITH_SMP > 0)
a35e91c3	280	#define MAX_NR_PROCESSORS WITH_SMP
a35e91c3 AC	281	#endif
a35e91c3 AC	282
247fccde AC	283	#ifndef MAX_NR_PROCESSORS
247fccde AC	284	#define MAX_NR_PROCESSORS 1
a35e91c3 AC	285	#endif
	286
	287
412c4e94	288	/* Size of target word, address and OpenFirmware Cell:
a35e91c3	289
412c4e94 AC	290	The target word size is determined by the natural size of its
	291	reginsters.
	292
	293	On most hosts, the address and cell are the same size as a target
	294	word. */
a35e91c3 AC	295
a35e91c3 AC	296	#ifndef WITH_TARGET_WORD_BITSIZE
412c4e94 AC	297	#define WITH_TARGET_WORD_BITSIZE 32
	298	#endif
	299
	300	#ifndef WITH_TARGET_ADDRESS_BITSIZE
	301	#define WITH_TARGET_ADDRESS_BITSIZE WITH_TARGET_WORD_BITSIZE
a35e91c3 AC	302	#endif
a35e91c3 AC	303
412c4e94 AC	304	#ifndef WITH_TARGET_CELL_BITSIZE
412c4e94 AC	305	#define WITH_TARGET_CELL_BITSIZE WITH_TARGET_WORD_BITSIZE
a35e91c3 AC	306	#endif
	307
	308
	309
7ec396d2 AC	310	/* Most significant bit of target:
	311
	312	Set this according to your target's bit numbering convention. For
	313	the PowerPC it is zero, for many other targets it is 31 or 63.
	314
	315	For targets that can both have either 32 or 64 bit words and number
	316	MSB as 31, 63. Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */
	317
	318	#ifndef WITH_TARGET_WORD_MSB
	319	#define WITH_TARGET_WORD_MSB 0
	320	#endif
	321
	322
	323
a35e91c3 AC	324	/* Program environment:
	325
	326	Three environments are available - UEA (user), VEA (virtual) and
	327	OEA (perating). The former two are environment that users would
	328	expect to see (VEA includes things like coherency and the time
	329	base) while OEA is what an operating system expects to see. By
	330	setting these to specific values, the build process is able to
22469a10	331	eliminate non relevent environment code.
a35e91c3 AC	332
a35e91c3 AC	333	CURRENT_ENVIRONMENT specifies which of vea or oea is required for
22469a10 DE	334	the current runtime.
	335
	336	ALL_ENVIRONMENT is used during configuration as a value for
	337	WITH_ENVIRONMENT to indicate the choice is runtime selectable.
	338	The default is then USER_ENVIRONMENT [since allowing the user to choose
	339	the default at configure time seems like featuritis and since people using
	340	OPERATING_ENVIRONMENT have more to worry about than selecting the default].
	341	ALL_ENVIRONMENT is also used to set `current_environment' to the
	342	"unknown" state. */
	343
	344	enum sim_environment {
	345	ALL_ENVIRONMENT,
	346	USER_ENVIRONMENT,
	347	VIRTUAL_ENVIRONMENT,
	348	OPERATING_ENVIRONMENT
	349	};
a35e91c3	350
22469a10 DE	351	/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so. */
	352	#ifdef WITH_ENVIRONMENT
	353	#define SIM_HAVE_ENVIRONMENT
	354	#endif
a35e91c3	355
22469a10 DE	356	/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its
	357	configure.in, the only supported environment is the user environment. */
	358	#ifndef WITH_ENVIRONMENT
	359	#define WITH_ENVIRONMENT USER_ENVIRONMENT
	360	#endif
a35e91c3	361
22469a10	362	#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
a35e91c3	363	? WITH_ENVIRONMENT \
22469a10	364	: USER_ENVIRONMENT)
a35e91c3	365
22469a10 DE	366	extern enum sim_environment current_environment;
	367	#define CURRENT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
	368	? WITH_ENVIRONMENT \
	369	: current_environment)
a35e91c3 AC	370
a35e91c3 AC	371
b45caf05	372	/* Callback & Modulo Memory.
a35e91c3 AC	373
	374	Core includes a builtin memory type (raw_memory) that is
	375	implemented using an array. raw_memory does not require any
	376	additional functions etc.
	377
	378	Callback memory is where the core calls a core device for the data
b45caf05	379	it requires. Callback memory can be layered using priorities.
a35e91c3	380
b45caf05 AC	381	Modulo memory is a variation on raw_memory where ADDRESS & (MODULO
b45caf05 AC	382	- 1) is used as the index into the memory array.
a35e91c3	383
b45caf05	384	The OEA model uses callback memory for devices.
a35e91c3 AC	385
	386	The VEA model uses callback memory to capture `page faults'.
	387
a35e91c3 AC	388	BTW, while raw_memory could have been implemented as a callback,
	389	profiling has shown that there is a biger win (at least for the
	390	x86) in eliminating a function call for the most common
	391	(raw_memory) case. */
	392
	393	#ifndef WITH_CALLBACK_MEMORY
	394	#define WITH_CALLBACK_MEMORY 1
	395	#endif
	396
b45caf05 AC	397	#ifndef WITH_MODULO_MEMORY
	398	#define WITH_MODULO_MEMORY 0
	399	#endif
	400
a35e91c3 AC	401
	402
	403	/* Alignment:
	404
247fccde AC	405	A processor architecture may or may not handle miss aligned
	406	transfers.
	407
	408	As alternatives: both little and big endian modes take an exception
	409	(STRICT_ALIGNMENT); big and little endian models handle mis aligned
	410	transfers (NONSTRICT_ALIGNMENT); or the address is forced into
	411	alignment using a mask (FORCED_ALIGNMENT).
a35e91c3	412
247fccde AC	413	Mixed alignment should be specified when the simulator needs to be
	414	able to change the alignment requirements on the fly (eg for
	415	bi-endian support). */
a35e91c3	416
247fccde AC	417	enum sim_alignments {
	418	MIXED_ALIGNMENT,
	419	NONSTRICT_ALIGNMENT,
	420	STRICT_ALIGNMENT,
	421	FORCED_ALIGNMENT,
	422	};
a35e91c3	423
247fccde	424	extern enum sim_alignments current_alignment;
a35e91c3	425
247fccde	426	#if !defined (WITH_ALIGNMENT)
22469a10	427	#define WITH_ALIGNMENT 0
247fccde	428	#endif
a35e91c3	429
b45caf05 AC	430	#if !defined (WITH_DEFAULT_ALIGNMENT)
	431	#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */
	432	#endif
	433
	434
	435
	436
a35e91c3 AC	437	#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \
	438	? WITH_ALIGNMENT \
	439	: current_alignment)
	440
a35e91c3 AC	441
	442
	443	/* Floating point suport:
	444
	445	Should the processor trap for all floating point instructions (as
	446	if the hardware wasn't implemented) or implement the floating point
	447	instructions directly. */
	448
	449	#if defined (WITH_FLOATING_POINT)
	450
	451	#define SOFT_FLOATING_POINT 1
	452	#define HARD_FLOATING_POINT 2
	453
	454	extern int current_floating_point;
	455	#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \
	456	? WITH_FLOATING_POINT \
	457	: current_floating_point)
	458
	459	#endif
	460
	461
	462
247fccde AC	463	/* Engine module.
	464
	465	Use the common start/stop/restart framework (sim-engine).
	466	Simulators using the other modules but not the engine should define
	467	WITH_ENGINE=0. */
	468
	469	#ifndef WITH_ENGINE
	470	#define WITH_ENGINE 1
	471	#endif
	472
	473
	474
a35e91c3 AC	475	/* Debugging:
a35e91c3 AC	476
4b364b00 DE	477	Control the inclusion of debugging code.
	478	Debugging is only turned on in rare circumstances [say during development]
	479	and is not intended to be turned on otherwise. */
	480
	481	#ifndef WITH_DEBUG
	482	#define WITH_DEBUG 0
	483	#endif
a35e91c3 AC	484
	485	/* Include the tracing code. Disabling this eliminates all tracing
	486	code */
	487
	488	#ifndef WITH_TRACE
247fccde AC	489	#define WITH_TRACE (-1)
	490	#endif
	491
	492	/* Include the profiling code. Disabling this eliminates all profiling
	493	code. */
	494
	495	#ifndef WITH_PROFILE
	496	#define WITH_PROFILE (-1)
a35e91c3 AC	497	#endif
	498
	499
	500	/* include code that checks assertions scattered through out the
	501	program */
	502
	503	#ifndef WITH_ASSERT
	504	#define WITH_ASSERT 1
	505	#endif
	506
	507
	508	/* Whether to check instructions for reserved bits being set */
	509
	510	/* #define WITH_RESERVED_BITS 1 */
	511
	512
	513
	514	/* include monitoring code */
	515
	516	#define MONITOR_INSTRUCTION_ISSUE 1
	517	#define MONITOR_LOAD_STORE_UNIT 2
	518	/* do not define WITH_MON by default */
	519	#define DEFAULT_WITH_MON (MONITOR_LOAD_STORE_UNIT \
	520	\| MONITOR_INSTRUCTION_ISSUE)
	521
	522
	523	/* Current CPU model (models are in the generated models.h include file) */
	524	#ifndef WITH_MODEL
	525	#define WITH_MODEL 0
	526	#endif
	527
	528	#define CURRENT_MODEL (WITH_MODEL \
	529	? WITH_MODEL \
	530	: current_model)
	531
	532	#ifndef WITH_DEFAULT_MODEL
	533	#define WITH_DEFAULT_MODEL DEFAULT_MODEL
	534	#endif
	535
	536	#define MODEL_ISSUE_IGNORE (-1)
	537	#define MODEL_ISSUE_PROCESS 1
	538
	539	#ifndef WITH_MODEL_ISSUE
	540	#define WITH_MODEL_ISSUE 0
	541	#endif
	542
	543	extern int current_model_issue;
	544	#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE \
	545	? WITH_MODEL_ISSUE \
	546	: current_model_issue)
	547
	548
	549
	550	/* Whether or not input/output just uses stdio, or uses printf_filtered for
	551	output, and polling input for input. */
	552
	553	#define DONT_USE_STDIO 2
	554	#define DO_USE_STDIO 1
	555
	556	#ifndef WITH_STDIO
	557	#define WITH_STDIO 0
	558	#endif
	559
	560	extern int current_stdio;
561	#define CURRENT_STDIO (WITH_STDIO \
562	? WITH_STDIO \
563	: current_stdio)
564
565
566
567	/* Specify that configured calls pass parameters in registers when the
568	convention is that they are placed on the stack */
569
570	#ifndef WITH_REGPARM
571	#define WITH_REGPARM 0
572	#endif
573
574	/* Specify that configured calls use an alternative calling mechanism */
575
576	#ifndef WITH_STDCALL
577	#define WITH_STDCALL 0
578	#endif
579
580
581	/* complete/verify/print the simulator configuration */
582
247fccde	583	extern SIM_RC sim_config
fafce69a	584	(SIM_DESC sd);
a35e91c3	585
a35e91c3 AC	586
	587	extern void print_sim_config (SIM_DESC sd);
	588
	589
	590	#endif /* _PSIM_CONFIG_H */