[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.  */


/* 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


/* Word size of host/target:

   Set these according to your host and target requirements.  At this
   point in time, I've only compiled (not run) for a 64bit and never
   built for a 64bit host.  This will always remain a compile time
   option */

#ifndef WITH_TARGET_WORD_BITSIZE
#define WITH_TARGET_WORD_BITSIZE        32 /* compiled only */
#endif

#ifndef WITH_HOST_WORD_BITSIZE
#define WITH_HOST_WORD_BITSIZE		32 /* 64bit ready? */
#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. */
207
a35e91c3 AC	208
	209	/* endianness of the host/target:
	210
	211	If the build process is aware (at compile time) of the endianness
	212	of the host/target it is able to eliminate slower generic endian
	213	handling code.
	214
	215	Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */
	216
	217	#ifndef WITH_HOST_BYTE_ORDER
	218	#define WITH_HOST_BYTE_ORDER 0 /unknown/
	219	#endif
	220
	221	#ifndef WITH_TARGET_BYTE_ORDER
	222	#define WITH_TARGET_BYTE_ORDER 0 /unknown/
	223	#endif
	224
247fccde AC	225	#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
	226	#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
	227	#endif
	228
a35e91c3 AC	229	extern int current_host_byte_order;
	230	#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
	231	? WITH_HOST_BYTE_ORDER \
	232	: current_host_byte_order)
	233	extern int current_target_byte_order;
	234	#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
	235	? WITH_TARGET_BYTE_ORDER \
	236	: current_target_byte_order)
	237
	238
	239
	240	/* XOR endian.
	241
247fccde AC	242	In addition to the above, the simulator can support the horrible
	243	XOR endian mode (as found in the PowerPC and MIPS ISA). See
	244	sim-core for more information.
a35e91c3	245
247fccde AC	246	If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes
	247	potentially involved in the XOR munge. A typical value is 8. */
	248
	249	#ifndef WITH_XOR_ENDIAN
	250	#define WITH_XOR_ENDIAN 0
	251	#endif
a35e91c3 AC	252
	253
	254
	255	/* Intel host BSWAP support:
	256
	257	Whether to use bswap on the 486 and pentiums rather than the 386
	258	sequence that uses xchgb/rorl/xchgb */
	259	#ifndef WITH_BSWAP
	260	#define WITH_BSWAP 0
	261	#endif
	262
	263
	264
	265	/* SMP support:
	266
	267	Sets a limit on the number of processors that can be simulated. If
	268	WITH_SMP is set to zero (0), the simulator is restricted to
247fccde	269	suporting only one processor (and as a consequence leaves the SMP
a35e91c3 AC	270	code out of the build process).
	271
	272	The actual number of processors is taken from the device
	273	/options/smp@<nr-cpu> */
	274
247fccde	275	#if defined (WITH_SMP) && WITH_SMP > 0
a35e91c3	276	#define MAX_NR_PROCESSORS WITH_SMP
a35e91c3 AC	277	#endif
a35e91c3 AC	278
247fccde AC	279	#ifndef MAX_NR_PROCESSORS
247fccde AC	280	#define MAX_NR_PROCESSORS 1
a35e91c3 AC	281	#endif
	282
	283
a35e91c3 AC	284	/* Word size of host/target:
	285
	286	Set these according to your host and target requirements. At this
	287	point in time, I've only compiled (not run) for a 64bit and never
	288	built for a 64bit host. This will always remain a compile time
	289	option */
	290
	291	#ifndef WITH_TARGET_WORD_BITSIZE
	292	#define WITH_TARGET_WORD_BITSIZE 32 /* compiled only */
	293	#endif
	294
	295	#ifndef WITH_HOST_WORD_BITSIZE
	296	#define WITH_HOST_WORD_BITSIZE 32 /* 64bit ready? */
	297	#endif
	298
	299
	300
7ec396d2 AC	301	/* Most significant bit of target:
	302
	303	Set this according to your target's bit numbering convention. For
	304	the PowerPC it is zero, for many other targets it is 31 or 63.
	305
	306	For targets that can both have either 32 or 64 bit words and number
	307	MSB as 31, 63. Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */
	308
	309	#ifndef WITH_TARGET_WORD_MSB
	310	#define WITH_TARGET_WORD_MSB 0
	311	#endif
	312
	313
	314
a35e91c3 AC	315	/* Program environment:
	316
	317	Three environments are available - UEA (user), VEA (virtual) and
	318	OEA (perating). The former two are environment that users would
	319	expect to see (VEA includes things like coherency and the time
	320	base) while OEA is what an operating system expects to see. By
	321	setting these to specific values, the build process is able to
22469a10	322	eliminate non relevent environment code.
a35e91c3 AC	323
a35e91c3 AC	324	CURRENT_ENVIRONMENT specifies which of vea or oea is required for
22469a10 DE	325	the current runtime.
	326
	327	ALL_ENVIRONMENT is used during configuration as a value for
	328	WITH_ENVIRONMENT to indicate the choice is runtime selectable.
	329	The default is then USER_ENVIRONMENT [since allowing the user to choose
	330	the default at configure time seems like featuritis and since people using
	331	OPERATING_ENVIRONMENT have more to worry about than selecting the default].
	332	ALL_ENVIRONMENT is also used to set `current_environment' to the
	333	"unknown" state. */
	334
	335	enum sim_environment {
	336	ALL_ENVIRONMENT,
	337	USER_ENVIRONMENT,
	338	VIRTUAL_ENVIRONMENT,
	339	OPERATING_ENVIRONMENT
	340	};
a35e91c3	341
22469a10 DE	342	/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so. */
	343	#ifdef WITH_ENVIRONMENT
	344	#define SIM_HAVE_ENVIRONMENT
	345	#endif
a35e91c3	346
22469a10 DE	347	/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its
	348	configure.in, the only supported environment is the user environment. */
	349	#ifndef WITH_ENVIRONMENT
	350	#define WITH_ENVIRONMENT USER_ENVIRONMENT
	351	#endif
a35e91c3	352
22469a10	353	#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
a35e91c3	354	? WITH_ENVIRONMENT \
22469a10	355	: USER_ENVIRONMENT)
a35e91c3	356
22469a10 DE	357	extern enum sim_environment current_environment;
	358	#define CURRENT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
	359	? WITH_ENVIRONMENT \
	360	: current_environment)
a35e91c3 AC	361
a35e91c3 AC	362
b45caf05	363	/* Callback & Modulo Memory.
a35e91c3 AC	364
	365	Core includes a builtin memory type (raw_memory) that is
	366	implemented using an array. raw_memory does not require any
	367	additional functions etc.
	368
	369	Callback memory is where the core calls a core device for the data
b45caf05	370	it requires. Callback memory can be layered using priorities.
a35e91c3	371
b45caf05 AC	372	Modulo memory is a variation on raw_memory where ADDRESS & (MODULO
b45caf05 AC	373	- 1) is used as the index into the memory array.
a35e91c3	374
b45caf05	375	The OEA model uses callback memory for devices.
a35e91c3 AC	376
	377	The VEA model uses callback memory to capture `page faults'.
	378
a35e91c3 AC	379	BTW, while raw_memory could have been implemented as a callback,
	380	profiling has shown that there is a biger win (at least for the
	381	x86) in eliminating a function call for the most common
	382	(raw_memory) case. */
	383
	384	#ifndef WITH_CALLBACK_MEMORY
	385	#define WITH_CALLBACK_MEMORY 1
	386	#endif
	387
b45caf05 AC	388	#ifndef WITH_MODULO_MEMORY
	389	#define WITH_MODULO_MEMORY 0
	390	#endif
	391
a35e91c3 AC	392
	393
	394	/* Alignment:
	395
247fccde AC	396	A processor architecture may or may not handle miss aligned
	397	transfers.
	398
	399	As alternatives: both little and big endian modes take an exception
	400	(STRICT_ALIGNMENT); big and little endian models handle mis aligned
	401	transfers (NONSTRICT_ALIGNMENT); or the address is forced into
	402	alignment using a mask (FORCED_ALIGNMENT).
a35e91c3	403
247fccde AC	404	Mixed alignment should be specified when the simulator needs to be
	405	able to change the alignment requirements on the fly (eg for
	406	bi-endian support). */
a35e91c3	407
247fccde AC	408	enum sim_alignments {
	409	MIXED_ALIGNMENT,
	410	NONSTRICT_ALIGNMENT,
	411	STRICT_ALIGNMENT,
	412	FORCED_ALIGNMENT,
	413	};
a35e91c3	414
247fccde	415	extern enum sim_alignments current_alignment;
a35e91c3	416
247fccde	417	#if !defined (WITH_ALIGNMENT)
22469a10	418	#define WITH_ALIGNMENT 0
247fccde	419	#endif
a35e91c3	420
b45caf05 AC	421	#if !defined (WITH_DEFAULT_ALIGNMENT)
	422	#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */
	423	#endif
	424
	425
	426
	427
a35e91c3 AC	428	#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \
	429	? WITH_ALIGNMENT \
	430	: current_alignment)
	431
a35e91c3 AC	432
	433
	434	/* Floating point suport:
	435
	436	Should the processor trap for all floating point instructions (as
	437	if the hardware wasn't implemented) or implement the floating point
	438	instructions directly. */
	439
	440	#if defined (WITH_FLOATING_POINT)
	441
	442	#define SOFT_FLOATING_POINT 1
	443	#define HARD_FLOATING_POINT 2
	444
	445	extern int current_floating_point;
	446	#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \
	447	? WITH_FLOATING_POINT \
	448	: current_floating_point)
	449
	450	#endif
	451
	452
	453
247fccde AC	454	/* Engine module.
	455
	456	Use the common start/stop/restart framework (sim-engine).
	457	Simulators using the other modules but not the engine should define
	458	WITH_ENGINE=0. */
	459
	460	#ifndef WITH_ENGINE
	461	#define WITH_ENGINE 1
	462	#endif
	463
	464
	465
a35e91c3 AC	466	/* Debugging:
a35e91c3 AC	467
4b364b00 DE	468	Control the inclusion of debugging code.
	469	Debugging is only turned on in rare circumstances [say during development]
	470	and is not intended to be turned on otherwise. */
	471
	472	#ifndef WITH_DEBUG
	473	#define WITH_DEBUG 0
	474	#endif
a35e91c3 AC	475
	476	/* Include the tracing code. Disabling this eliminates all tracing
	477	code */
	478
	479	#ifndef WITH_TRACE
247fccde AC	480	#define WITH_TRACE (-1)
	481	#endif
	482
	483	/* Include the profiling code. Disabling this eliminates all profiling
	484	code. */
	485
	486	#ifndef WITH_PROFILE
	487	#define WITH_PROFILE (-1)
a35e91c3 AC	488	#endif
	489
	490
	491	/* include code that checks assertions scattered through out the
	492	program */
	493
	494	#ifndef WITH_ASSERT
	495	#define WITH_ASSERT 1
	496	#endif
	497
	498
	499	/* Whether to check instructions for reserved bits being set */
	500
	501	/* #define WITH_RESERVED_BITS 1 */
	502
	503
	504
	505	/* include monitoring code */
	506
	507	#define MONITOR_INSTRUCTION_ISSUE 1
	508	#define MONITOR_LOAD_STORE_UNIT 2
	509	/* do not define WITH_MON by default */
	510	#define DEFAULT_WITH_MON (MONITOR_LOAD_STORE_UNIT \
	511	\| MONITOR_INSTRUCTION_ISSUE)
	512
	513
	514	/* Current CPU model (models are in the generated models.h include file) */
	515	#ifndef WITH_MODEL
	516	#define WITH_MODEL 0
	517	#endif
	518
	519	#define CURRENT_MODEL (WITH_MODEL \
	520	? WITH_MODEL \
	521	: current_model)
	522
	523	#ifndef WITH_DEFAULT_MODEL
	524	#define WITH_DEFAULT_MODEL DEFAULT_MODEL
	525	#endif
	526
	527	#define MODEL_ISSUE_IGNORE (-1)
	528	#define MODEL_ISSUE_PROCESS 1
	529
	530	#ifndef WITH_MODEL_ISSUE
	531	#define WITH_MODEL_ISSUE 0
	532	#endif
	533
	534	extern int current_model_issue;
	535	#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE \
	536	? WITH_MODEL_ISSUE \
	537	: current_model_issue)
	538
	539
	540
	541	/* Whether or not input/output just uses stdio, or uses printf_filtered for
	542	output, and polling input for input. */
	543
	544	#define DONT_USE_STDIO 2
	545	#define DO_USE_STDIO 1
	546
	547	#ifndef WITH_STDIO
	548	#define WITH_STDIO 0
	549	#endif
	550
	551	extern int current_stdio;
552	#define CURRENT_STDIO (WITH_STDIO \
553	? WITH_STDIO \
554	: current_stdio)
555
556
557
558	/* Specify that configured calls pass parameters in registers when the
559	convention is that they are placed on the stack */
560
561	#ifndef WITH_REGPARM
562	#define WITH_REGPARM 0
563	#endif
564
565	/* Specify that configured calls use an alternative calling mechanism */
566
567	#ifndef WITH_STDCALL
568	#define WITH_STDCALL 0
569	#endif
570
571
572	/* complete/verify/print the simulator configuration */
573
247fccde	574	extern SIM_RC sim_config
fafce69a	575	(SIM_DESC sd);
a35e91c3	576
a35e91c3 AC	577
	578	extern void print_sim_config (SIM_DESC sd);
	579
	580
	581	#endif /* _PSIM_CONFIG_H */