[deliverable/binutils-gdb.git] / sim / cris / cris-tmpl.c

/* CRIS base simulator support code
   Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
   Contributed by Axis Communications.

This file is part of the GNU simulators.

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 3 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, see <http://www.gnu.org/licenses/>.  */

/* The infrastructure is based on that of i960.c.  */

#define WANT_CPU

#include "sim-main.h"
#include "cgen-mem.h"
#include "cgen-ops.h"

#define MY(f) XCONCAT3(crisv,BASENUM,f)

/* Dispatcher for break insn.  */

USI
MY (f_break_handler) (SIM_CPU *cpu, USI breaknum, USI pc)
{
  SIM_DESC sd = CPU_STATE (cpu);
  USI ret = pc + 2;

  MY (f_h_pc_set) (cpu, ret);

  /* FIXME: Error out if IBR or ERP set.  */
  switch (breaknum)
    {
    case 13:
      MY (f_h_gr_set (cpu, 10,
		      cris_break_13_handler (cpu,
					     MY (f_h_gr_get (cpu, 9)),
					     MY (f_h_gr_get (cpu, 10)),
					     MY (f_h_gr_get (cpu, 11)),
					     MY (f_h_gr_get (cpu, 12)),
					     MY (f_h_gr_get (cpu, 13)),
					     MY (f_h_sr_get (cpu, 7)),
					     MY (f_h_sr_get (cpu, 11)),
					     pc)));
      break;

    case 14:
      sim_io_printf (sd, "%x\n", MY (f_h_gr_get (cpu, 3)));
      break;

    case 15:
      /* Re-use the Linux exit call.  */
      cris_break_13_handler (cpu, /* TARGET_SYS_exit */ 1, 0,
			     0, 0, 0, 0, 0, pc);

    default:
      abort ();
    }

  return MY (f_h_pc_get) (cpu);
}

/* Accessor function for simulator internal use.
   Note the contents of BUF are in target byte order.  */

int
MY (f_fetch_register) (SIM_CPU *current_cpu, int rn,
		      unsigned char *buf, int len ATTRIBUTE_UNUSED)
{
  SETTSI (buf, XCONCAT3(crisv,BASENUM,f_h_gr_get) (current_cpu, rn));
  return -1;
}

/* Accessor function for simulator internal use.
   Note the contents of BUF are in target byte order.  */

int
MY (f_store_register) (SIM_CPU *current_cpu, int rn,
		      unsigned char *buf, int len ATTRIBUTE_UNUSED)
{
  XCONCAT3(crisv,BASENUM,f_h_gr_set) (current_cpu, rn, GETTSI (buf));
  return -1;
}
\f
#if WITH_PROFILE_MODEL_P

/* FIXME: Some of these should be inline or macros.  Later.  */

/* Initialize cycle counting for an insn.
   FIRST_P is non-zero if this is the first insn in a set of parallel
   insns.  */

void
MY (f_model_insn_before) (SIM_CPU *current_cpu, int first_p ATTRIBUTE_UNUSED)
{
  /* To give the impression that we actually know what PC is, we have to
     dump register contents *before* the *next* insn, not after the
     *previous* insn.  Uhh...  */

  /* FIXME: Move this to separate, overridable function.  */
  if ((CPU_CRIS_MISC_PROFILE (current_cpu)->flags
       & FLAG_CRIS_MISC_PROFILE_XSIM_TRACE)
#ifdef GET_H_INSN_PREFIXED_P
      /* For versions with prefixed insns, trace the combination as
	 one insn.  */
      && !GET_H_INSN_PREFIXED_P ()
#endif
      && 1)
  {
    int i;
    char flags[7];
    unsigned64 cycle_count;

    SIM_DESC sd = CPU_STATE (current_cpu);

    cris_trace_printf (sd, current_cpu, "%lx ",
		       0xffffffffUL & (unsigned long) (CPU (h_pc)));

    for (i = 0; i < 15; i++)
      cris_trace_printf (sd, current_cpu, "%lx ",
			 0xffffffffUL
			 & (unsigned long) (XCONCAT3(crisv,BASENUM,
						     f_h_gr_get) (current_cpu,
								  i)));
    flags[0] = GET_H_IBIT () != 0 ? 'I' : 'i';
    flags[1] = GET_H_XBIT () != 0 ? 'X' : 'x';
    flags[2] = GET_H_NBIT () != 0 ? 'N' : 'n';
    flags[3] = GET_H_ZBIT () != 0 ? 'Z' : 'z';
    flags[4] = GET_H_VBIT () != 0 ? 'V' : 'v';
    flags[5] = GET_H_CBIT () != 0 ? 'C' : 'c';
    flags[6] = 0;

    /* For anything else than basic tracing we'd add stall cycles for
       e.g. unaligned accesses.  FIXME: add --cris-trace=x options to
       match --cris-cycles=x.  */
    cycle_count
      = (CPU_CRIS_MISC_PROFILE (current_cpu)->basic_cycle_count
	 - CPU_CRIS_PREV_MISC_PROFILE (current_cpu)->basic_cycle_count);

    /* Emit ACR after flags and cycle count for this insn.  */
    if (BASENUM == 32)
      cris_trace_printf (sd, current_cpu, "%s %d %lx\n", flags,
			 (int) cycle_count,
			 0xffffffffUL
			 & (unsigned long) (XCONCAT3(crisv,BASENUM,
						     f_h_gr_get) (current_cpu,
								  15)));
    else
      cris_trace_printf (sd, current_cpu, "%s %d\n", flags,
			 (int) cycle_count);

    CPU_CRIS_PREV_MISC_PROFILE (current_cpu)[0]
      = CPU_CRIS_MISC_PROFILE (current_cpu)[0];
  }
}

/* Record the cycles computed for an insn.
   LAST_P is non-zero if this is the last insn in a set of parallel insns,
   and we update the total cycle count.
   CYCLES is the cycle count of the insn.  */

void
MY (f_model_insn_after) (SIM_CPU *current_cpu, int last_p ATTRIBUTE_UNUSED,
			 int cycles)
{
  PROFILE_DATA *p = CPU_PROFILE_DATA (current_cpu);

  PROFILE_MODEL_TOTAL_CYCLES (p) += cycles;
  CPU_CRIS_MISC_PROFILE (current_cpu)->basic_cycle_count += cycles;
  PROFILE_MODEL_CUR_INSN_CYCLES (p) = cycles;

#if WITH_HW
  /* For some reason, we don't get to the sim_events_tick call in
     cgen-run.c:engine_run_1.  Besides, more than one cycle has
     passed, so we want sim_events_tickn anyway.  The "events we want
     to process" is usually to initiate an interrupt, but might also
     be other events.  We can't do the former until the main loop is
     at point where it accepts changing the PC without internal
     inconsistency, so just set a flag and wait.  */
  if (sim_events_tickn (CPU_STATE (current_cpu), cycles))
    STATE_EVENTS (CPU_STATE (current_cpu))->work_pending = 1;
#endif
}

/* Initialize cycle counting for an insn.
   FIRST_P is non-zero if this is the first insn in a set of parallel
   insns.  */

void
MY (f_model_init_insn_cycles) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
			       int first_p ATTRIBUTE_UNUSED)
{
  abort ();
}

/* Record the cycles computed for an insn.
   LAST_P is non-zero if this is the last insn in a set of parallel insns,
   and we update the total cycle count.  */

void
MY (f_model_update_insn_cycles) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
				 int last_p ATTRIBUTE_UNUSED)
{
  abort ();
}

#if 0
void
MY (f_model_record_cycles) (SIM_CPU *current_cpu, unsigned long cycles)
{
  abort ();
}

void
MY (f_model_mark_get_h_gr) (SIM_CPU *current_cpu, ARGBUF *abuf)
{
  abort ();
}

void
MY (f_model_mark_set_h_gr) (SIM_CPU *current_cpu, ARGBUF *abuf)
{
  abort ();
}
#endif
\f
/* Create the context for a thread.  */

void *
MY (make_thread_cpu_data) (SIM_CPU *current_cpu, void *context)
{
  void *info = xmalloc (current_cpu->thread_cpu_data_size);

  if (context != NULL)
    memcpy (info,
	    context,
	    current_cpu->thread_cpu_data_size);
  else
    memset (info, 0, current_cpu->thread_cpu_data_size),abort();
  return info;
}

/* Hook function for per-cpu simulator initialization.  */

void
MY (f_specific_init) (SIM_CPU *current_cpu)
{
  current_cpu->make_thread_cpu_data = MY (make_thread_cpu_data);
  current_cpu->thread_cpu_data_size = sizeof (current_cpu->cpu_data);
#if WITH_HW
  current_cpu->deliver_interrupt = MY (deliver_interrupt);
#endif
}
\f
/* Model function for arbitrary single stall cycles.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_stall)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
			  const IDESC *idesc,
			  int unit_num,
			  int referenced ATTRIBUTE_UNUSED)
{
  return idesc->timing->units[unit_num].done;
}

#ifndef SPECIFIC_U_SKIP4_FN

/* Model function for u-skip4 unit.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_skip4)) (SIM_CPU *current_cpu,
			  const IDESC *idesc,
			  int unit_num,
			  int referenced ATTRIBUTE_UNUSED)
{
  /* Handle PC not being updated with pbb.  FIXME: What if not pbb?  */
  CPU (h_pc) += 4;
  return idesc->timing->units[unit_num].done;
}

#endif

#ifndef SPECIFIC_U_EXEC_FN

/* Model function for u-exec unit.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_exec)) (SIM_CPU *current_cpu,
			 const IDESC *idesc,
			 int unit_num, int referenced ATTRIBUTE_UNUSED)
{
  /* Handle PC not being updated with pbb.  FIXME: What if not pbb?  */
  CPU (h_pc) += 2;
  return idesc->timing->units[unit_num].done;
}
#endif

#ifndef SPECIFIC_U_MEM_FN

/* Model function for u-mem unit.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_mem)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
			const IDESC *idesc,
			int unit_num,
			int referenced ATTRIBUTE_UNUSED)
{
  return idesc->timing->units[unit_num].done;
}
#endif

#ifndef SPECIFIC_U_CONST16_FN

/* Model function for u-const16 unit.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_const16)) (SIM_CPU *current_cpu,
			    const IDESC *idesc,
			    int unit_num,
			    int referenced ATTRIBUTE_UNUSED)
{
  CPU (h_pc) += 2;
  return idesc->timing->units[unit_num].done;
}
#endif /* SPECIFIC_U_CONST16_FN */

#ifndef SPECIFIC_U_CONST32_FN

/* This will be incorrect for early models, where a dword always take
   two cycles.  */
#define CRIS_MODEL_MASK_PC_STALL 2

/* Model function for u-const32 unit.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_const32)) (SIM_CPU *current_cpu,
			    const IDESC *idesc,
			    int unit_num,
			    int referenced ATTRIBUTE_UNUSED)
{
  int unaligned_extra
    = (((CPU (h_pc) + 2) & CRIS_MODEL_MASK_PC_STALL)
       == CRIS_MODEL_MASK_PC_STALL);

  /* Handle PC not being updated with pbb.  FIXME: What if not pbb?  */
  CPU_CRIS_MISC_PROFILE (current_cpu)->unaligned_mem_dword_count
    += unaligned_extra;

  CPU (h_pc) += 4;
  return idesc->timing->units[unit_num].done;
}
#endif /* SPECIFIC_U_CONST32_FN */

#ifndef SPECIFIC_U_MOVEM_FN

/* Model function for u-movem unit.  */

int
MY (XCONCAT3 (f_model_crisv,BASENUM,
	      _u_movem)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
			  const IDESC *idesc ATTRIBUTE_UNUSED,
			  int unit_num ATTRIBUTE_UNUSED,
			  int referenced ATTRIBUTE_UNUSED,
			  INT limreg)
{
  /* FIXME: Add cycles for misalignment.  */

  if (limreg == -1)
    abort ();

  /* We don't record movem move cycles in movemsrc_stall_count since
     those cycles have historically been handled as ordinary cycles.  */
  return limreg + 1;
}
#endif /* SPECIFIC_U_MOVEM_FN */

#endif /* WITH_PROFILE_MODEL_P */
Commit	Line	Data
f6bcefef	1	/* CRIS base simulator support code
9b254dd1	2	Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
f6bcefef HPN	3	Contributed by Axis Communications.
	4
	5	This file is part of the GNU simulators.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
4744ac1b JB	9	the Free Software Foundation; either version 3 of the License, or
4744ac1b JB	10	(at your option) any later version.
f6bcefef HPN	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
4744ac1b JB	17	You should have received a copy of the GNU General Public License
4744ac1b JB	18	along with this program. If not, see <http://www.gnu.org/licenses/>. */
f6bcefef HPN	19
	20	/* The infrastructure is based on that of i960.c. */
	21
	22	#define WANT_CPU
	23
	24	#include "sim-main.h"
	25	#include "cgen-mem.h"
	26	#include "cgen-ops.h"
	27
	28	#define MY(f) XCONCAT3(crisv,BASENUM,f)
	29
	30	/* Dispatcher for break insn. */
	31
	32	USI
	33	MY (f_break_handler) (SIM_CPU *cpu, USI breaknum, USI pc)
	34	{
	35	SIM_DESC sd = CPU_STATE (cpu);
	36	USI ret = pc + 2;
	37
	38	MY (f_h_pc_set) (cpu, ret);
	39
	40	/* FIXME: Error out if IBR or ERP set. */
	41	switch (breaknum)
	42	{
	43	case 13:
	44	MY (f_h_gr_set (cpu, 10,
	45	cris_break_13_handler (cpu,
	46	MY (f_h_gr_get (cpu, 9)),
	47	MY (f_h_gr_get (cpu, 10)),
	48	MY (f_h_gr_get (cpu, 11)),
	49	MY (f_h_gr_get (cpu, 12)),
	50	MY (f_h_gr_get (cpu, 13)),
	51	MY (f_h_sr_get (cpu, 7)),
	52	MY (f_h_sr_get (cpu, 11)),
	53	pc)));
	54	break;
	55
	56	case 14:
	57	sim_io_printf (sd, "%x\n", MY (f_h_gr_get (cpu, 3)));
	58	break;
	59
	60	case 15:
	61	/* Re-use the Linux exit call. */
	62	cris_break_13_handler (cpu, /* TARGET_SYS_exit */ 1, 0,
	63	0, 0, 0, 0, 0, pc);
	64
	65	default:
	66	abort ();
	67	}
	68
	69	return MY (f_h_pc_get) (cpu);
	70	}
	71
	72	/* Accessor function for simulator internal use.
	73	Note the contents of BUF are in target byte order. */
	74
	75	int
	76	MY (f_fetch_register) (SIM_CPU *current_cpu, int rn,
	77	unsigned char *buf, int len ATTRIBUTE_UNUSED)
	78	{
	79	SETTSI (buf, XCONCAT3(crisv,BASENUM,f_h_gr_get) (current_cpu, rn));
	80	return -1;
	81	}
	82
83	/* Accessor function for simulator internal use.
84	Note the contents of BUF are in target byte order. */
85
86	int
87	MY (f_store_register) (SIM_CPU *current_cpu, int rn,
88	unsigned char *buf, int len ATTRIBUTE_UNUSED)
89	{
90	XCONCAT3(crisv,BASENUM,f_h_gr_set) (current_cpu, rn, GETTSI (buf));
91	return -1;
92	}
93	\f
94	#if WITH_PROFILE_MODEL_P
95
96	/* FIXME: Some of these should be inline or macros. Later. */
97
98	/* Initialize cycle counting for an insn.
99	FIRST_P is non-zero if this is the first insn in a set of parallel
100	insns. */
101
102	void
103	MY (f_model_insn_before) (SIM_CPU *current_cpu, int first_p ATTRIBUTE_UNUSED)
104	{
105	/* To give the impression that we actually know what PC is, we have to
106	dump register contents before the next insn, not after the
107	previous insn. Uhh... */
108
109	/* FIXME: Move this to separate, overridable function. */
110	if ((CPU_CRIS_MISC_PROFILE (current_cpu)->flags
111	& FLAG_CRIS_MISC_PROFILE_XSIM_TRACE)
112	#ifdef GET_H_INSN_PREFIXED_P
113	/* For versions with prefixed insns, trace the combination as
114	one insn. */
115	&& !GET_H_INSN_PREFIXED_P ()
116	#endif
117	&& 1)
118	{
119	int i;
120	char flags[7];
4fc9958a HPN	121	unsigned64 cycle_count;
4fc9958a HPN	122
f6bcefef HPN	123	SIM_DESC sd = CPU_STATE (current_cpu);
f6bcefef HPN	124
ae81c235 HPN	125	cris_trace_printf (sd, current_cpu, "%lx ",
ae81c235 HPN	126	0xffffffffUL & (unsigned long) (CPU (h_pc)));
f6bcefef HPN	127
	128	for (i = 0; i < 15; i++)
	129	cris_trace_printf (sd, current_cpu, "%lx ",
ae81c235 HPN	130	0xffffffffUL
	131	& (unsigned long) (XCONCAT3(crisv,BASENUM,
	132	f_h_gr_get) (current_cpu,
	133	i)));
f6bcefef HPN	134	flags[0] = GET_H_IBIT () != 0 ? 'I' : 'i';
	135	flags[1] = GET_H_XBIT () != 0 ? 'X' : 'x';
	136	flags[2] = GET_H_NBIT () != 0 ? 'N' : 'n';
	137	flags[3] = GET_H_ZBIT () != 0 ? 'Z' : 'z';
	138	flags[4] = GET_H_VBIT () != 0 ? 'V' : 'v';
	139	flags[5] = GET_H_CBIT () != 0 ? 'C' : 'c';
	140	flags[6] = 0;
	141
4fc9958a HPN	142	/* For anything else than basic tracing we'd add stall cycles for
	143	e.g. unaligned accesses. FIXME: add --cris-trace=x options to
	144	match --cris-cycles=x. */
	145	cycle_count
	146	= (CPU_CRIS_MISC_PROFILE (current_cpu)->basic_cycle_count
	147	- CPU_CRIS_PREV_MISC_PROFILE (current_cpu)->basic_cycle_count);
	148
f6bcefef HPN	149	/* Emit ACR after flags and cycle count for this insn. */
	150	if (BASENUM == 32)
	151	cris_trace_printf (sd, current_cpu, "%s %d %lx\n", flags,
4fc9958a	152	(int) cycle_count,
ae81c235 HPN	153	0xffffffffUL
	154	& (unsigned long) (XCONCAT3(crisv,BASENUM,
	155	f_h_gr_get) (current_cpu,
	156	15)));
f6bcefef HPN	157	else
f6bcefef HPN	158	cris_trace_printf (sd, current_cpu, "%s %d\n", flags,
4fc9958a	159	(int) cycle_count);
f6bcefef HPN	160
	161	CPU_CRIS_PREV_MISC_PROFILE (current_cpu)[0]
	162	= CPU_CRIS_MISC_PROFILE (current_cpu)[0];
	163	}
	164	}
	165
	166	/* Record the cycles computed for an insn.
	167	LAST_P is non-zero if this is the last insn in a set of parallel insns,
	168	and we update the total cycle count.
	169	CYCLES is the cycle count of the insn. */
	170
	171	void
	172	MY (f_model_insn_after) (SIM_CPU *current_cpu, int last_p ATTRIBUTE_UNUSED,
	173	int cycles)
	174	{
	175	PROFILE_DATA *p = CPU_PROFILE_DATA (current_cpu);
	176
	177	PROFILE_MODEL_TOTAL_CYCLES (p) += cycles;
	178	CPU_CRIS_MISC_PROFILE (current_cpu)->basic_cycle_count += cycles;
	179	PROFILE_MODEL_CUR_INSN_CYCLES (p) = cycles;
aad3b3cb HPN	180
	181	#if WITH_HW
	182	/* For some reason, we don't get to the sim_events_tick call in
	183	cgen-run.c:engine_run_1. Besides, more than one cycle has
	184	passed, so we want sim_events_tickn anyway. The "events we want
	185	to process" is usually to initiate an interrupt, but might also
	186	be other events. We can't do the former until the main loop is
	187	at point where it accepts changing the PC without internal
	188	inconsistency, so just set a flag and wait. */
	189	if (sim_events_tickn (CPU_STATE (current_cpu), cycles))
	190	STATE_EVENTS (CPU_STATE (current_cpu))->work_pending = 1;
	191	#endif
f6bcefef HPN	192	}
	193
	194	/* Initialize cycle counting for an insn.
	195	FIRST_P is non-zero if this is the first insn in a set of parallel
	196	insns. */
	197
	198	void
	199	MY (f_model_init_insn_cycles) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
	200	int first_p ATTRIBUTE_UNUSED)
	201	{
	202	abort ();
	203	}
	204
	205	/* Record the cycles computed for an insn.
	206	LAST_P is non-zero if this is the last insn in a set of parallel insns,
	207	and we update the total cycle count. */
	208
	209	void
	210	MY (f_model_update_insn_cycles) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
	211	int last_p ATTRIBUTE_UNUSED)
	212	{
	213	abort ();
	214	}
	215
	216	#if 0
	217	void
	218	MY (f_model_record_cycles) (SIM_CPU *current_cpu, unsigned long cycles)
	219	{
	220	abort ();
	221	}
	222
	223	void
	224	MY (f_model_mark_get_h_gr) (SIM_CPU current_cpu, ARGBUF abuf)
	225	{
	226	abort ();
	227	}
	228
	229	void
	230	MY (f_model_mark_set_h_gr) (SIM_CPU current_cpu, ARGBUF abuf)
	231	{
	232	abort ();
	233	}
	234	#endif
	235	\f
	236	/* Create the context for a thread. */
	237
	238	void *
	239	MY (make_thread_cpu_data) (SIM_CPU current_cpu, void context)
	240	{
	241	void *info = xmalloc (current_cpu->thread_cpu_data_size);
	242
	243	if (context != NULL)
	244	memcpy (info,
	245	context,
	246	current_cpu->thread_cpu_data_size);
	247	else
	248	memset (info, 0, current_cpu->thread_cpu_data_size),abort();
	249	return info;
	250	}
	251
	252	/* Hook function for per-cpu simulator initialization. */
	253
	254	void
	255	MY (f_specific_init) (SIM_CPU *current_cpu)
256	{
257	current_cpu->make_thread_cpu_data = MY (make_thread_cpu_data);
258	current_cpu->thread_cpu_data_size = sizeof (current_cpu->cpu_data);
aad3b3cb HPN	259	#if WITH_HW
	260	current_cpu->deliver_interrupt = MY (deliver_interrupt);
	261	#endif
f6bcefef HPN	262	}
	263	\f
	264	/* Model function for arbitrary single stall cycles. */
	265
	266	int
	267	MY (XCONCAT3 (f_model_crisv,BASENUM,
	268	_u_stall)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
	269	const IDESC *idesc,
	270	int unit_num,
	271	int referenced ATTRIBUTE_UNUSED)
	272	{
	273	return idesc->timing->units[unit_num].done;
	274	}
	275
	276	#ifndef SPECIFIC_U_SKIP4_FN
	277
	278	/* Model function for u-skip4 unit. */
	279
	280	int
	281	MY (XCONCAT3 (f_model_crisv,BASENUM,
	282	_u_skip4)) (SIM_CPU *current_cpu,
	283	const IDESC *idesc,
	284	int unit_num,
	285	int referenced ATTRIBUTE_UNUSED)
	286	{
	287	/* Handle PC not being updated with pbb. FIXME: What if not pbb? */
	288	CPU (h_pc) += 4;
	289	return idesc->timing->units[unit_num].done;
	290	}
	291
	292	#endif
	293
	294	#ifndef SPECIFIC_U_EXEC_FN
	295
	296	/* Model function for u-exec unit. */
	297
	298	int
	299	MY (XCONCAT3 (f_model_crisv,BASENUM,
	300	_u_exec)) (SIM_CPU *current_cpu,
	301	const IDESC *idesc,
	302	int unit_num, int referenced ATTRIBUTE_UNUSED)
	303	{
	304	/* Handle PC not being updated with pbb. FIXME: What if not pbb? */
	305	CPU (h_pc) += 2;
	306	return idesc->timing->units[unit_num].done;
	307	}
	308	#endif
	309
	310	#ifndef SPECIFIC_U_MEM_FN
	311
	312	/* Model function for u-mem unit. */
	313
	314	int
	315	MY (XCONCAT3 (f_model_crisv,BASENUM,
	316	_u_mem)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
	317	const IDESC *idesc,
	318	int unit_num,
	319	int referenced ATTRIBUTE_UNUSED)
	320	{
	321	return idesc->timing->units[unit_num].done;
	322	}
	323	#endif
	324
	325	#ifndef SPECIFIC_U_CONST16_FN
326
327	/* Model function for u-const16 unit. */
328
329	int
330	MY (XCONCAT3 (f_model_crisv,BASENUM,
331	_u_const16)) (SIM_CPU *current_cpu,
332	const IDESC *idesc,
333	int unit_num,
334	int referenced ATTRIBUTE_UNUSED)
335	{
336	CPU (h_pc) += 2;
337	return idesc->timing->units[unit_num].done;
338	}
339	#endif /* SPECIFIC_U_CONST16_FN */
340
341	#ifndef SPECIFIC_U_CONST32_FN
342
343	/* This will be incorrect for early models, where a dword always take
344	two cycles. */
345	#define CRIS_MODEL_MASK_PC_STALL 2
346
347	/* Model function for u-const32 unit. */
348
349	int
350	MY (XCONCAT3 (f_model_crisv,BASENUM,
351	_u_const32)) (SIM_CPU *current_cpu,
352	const IDESC *idesc,
353	int unit_num,
354	int referenced ATTRIBUTE_UNUSED)
355	{
356	int unaligned_extra
357	= (((CPU (h_pc) + 2) & CRIS_MODEL_MASK_PC_STALL)
358	== CRIS_MODEL_MASK_PC_STALL);
359
360	/* Handle PC not being updated with pbb. FIXME: What if not pbb? */
361	CPU_CRIS_MISC_PROFILE (current_cpu)->unaligned_mem_dword_count
362	+= unaligned_extra;
363
364	CPU (h_pc) += 4;
365	return idesc->timing->units[unit_num].done;
366	}
367	#endif /* SPECIFIC_U_CONST32_FN */
368
369	#ifndef SPECIFIC_U_MOVEM_FN
370
371	/* Model function for u-movem unit. */
372
373	int
374	MY (XCONCAT3 (f_model_crisv,BASENUM,
375	_u_movem)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
376	const IDESC *idesc ATTRIBUTE_UNUSED,
377	int unit_num ATTRIBUTE_UNUSED,
378	int referenced ATTRIBUTE_UNUSED,
379	INT limreg)
380	{
381	/* FIXME: Add cycles for misalignment. */
382
383	if (limreg == -1)
384	abort ();
385
386	/* We don't record movem move cycles in movemsrc_stall_count since
387	those cycles have historically been handled as ordinary cycles. */
388	return limreg + 1;
389	}
390	#endif /* SPECIFIC_U_MOVEM_FN */
391
392	#endif /* WITH_PROFILE_MODEL_P */