[deliverable/binutils-gdb.git] / sim / m32r / m32r.c

/* m32r simulator support code
   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   Contributed by Cygnus Support.

This file is part of GDB, the GNU debugger.

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, 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.  */

#define WANT_CPU m32rbf
#define WANT_CPU_M32RBF

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

/* Decode gdb ctrl register number.  */

int
m32r_decode_gdb_ctrl_regnum (int gdb_regnum)
{
  switch (gdb_regnum)
    {
      case PSW_REGNUM : return H_CR_PSW;
      case CBR_REGNUM : return H_CR_CBR;
      case SPI_REGNUM : return H_CR_SPI;
      case SPU_REGNUM : return H_CR_SPU;
      case BPC_REGNUM : return H_CR_BPC;
      case BBPSW_REGNUM : return H_CR_BBPSW;
      case BBPC_REGNUM : return H_CR_BBPC;
    }
  abort ();
}

/* The contents of BUF are in target byte order.  */

int
m32rbf_fetch_register (SIM_CPU *current_cpu, int rn, unsigned char *buf, int len)
{
  if (rn < 16)
    SETTWI (buf, a_m32r_h_gr_get (current_cpu, rn));
  else
    switch (rn)
      {
      case PSW_REGNUM :
      case CBR_REGNUM :
      case SPI_REGNUM :
      case SPU_REGNUM :
      case BPC_REGNUM :
      case BBPSW_REGNUM :
      case BBPC_REGNUM :
	SETTWI (buf, a_m32r_h_cr_get (current_cpu,
				      m32r_decode_gdb_ctrl_regnum (rn)));
	break;
      case PC_REGNUM :
	SETTWI (buf, a_m32r_h_pc_get (current_cpu));
	break;
      case ACCL_REGNUM :
	SETTWI (buf, GETLODI (a_m32r_h_accum_get (current_cpu)));
	break;
      case ACCH_REGNUM :
	SETTWI (buf, GETHIDI (a_m32r_h_accum_get (current_cpu)));
	break;
      default :
	return 0;
      }

  return -1; /*FIXME*/
}

/* The contents of BUF are in target byte order.  */

int
m32rbf_store_register (SIM_CPU *current_cpu, int rn, unsigned char *buf, int len)
{
  if (rn < 16)
    a_m32r_h_gr_set (current_cpu, rn, GETTWI (buf));
  else
    switch (rn)
      {
      case PSW_REGNUM :
      case CBR_REGNUM :
      case SPI_REGNUM :
      case SPU_REGNUM :
      case BPC_REGNUM :
      case BBPSW_REGNUM :
      case BBPC_REGNUM :
	a_m32r_h_cr_set (current_cpu,
			 m32r_decode_gdb_ctrl_regnum (rn),
			 GETTWI (buf));
	break;
      case PC_REGNUM :
	a_m32r_h_pc_set (current_cpu, GETTWI (buf));
	break;
      case ACCL_REGNUM :
	{
	  DI val = a_m32r_h_accum_get (current_cpu);
	  SETLODI (val, GETTWI (buf));
	  a_m32r_h_accum_set (current_cpu, val);
	  break;
	}
      case ACCH_REGNUM :
	{
	  DI val = a_m32r_h_accum_get (current_cpu);
	  SETHIDI (val, GETTWI (buf));
	  a_m32r_h_accum_set (current_cpu, val);
	  break;
	}
      default :
	return 0;
      }

  return -1; /*FIXME*/
}
\f
USI
m32rbf_h_cr_get_handler (SIM_CPU *current_cpu, UINT cr)
{
  switch (cr)
    {
    case H_CR_PSW : /* psw */
      return (((CPU (h_bpsw) & 0xc1) << 8)
	      | ((CPU (h_psw) & 0xc0) << 0)
	      | GET_H_COND ());
    case H_CR_BBPSW : /* backup backup psw */
      return CPU (h_bbpsw) & 0xc1;
    case H_CR_CBR : /* condition bit */
      return GET_H_COND ();
    case H_CR_SPI : /* interrupt stack pointer */
      if (! GET_H_SM ())
	return CPU (h_gr[H_GR_SP]);
      else
	return CPU (h_cr[H_CR_SPI]);
    case H_CR_SPU : /* user stack pointer */
      if (GET_H_SM ())
	return CPU (h_gr[H_GR_SP]);
      else
	return CPU (h_cr[H_CR_SPU]);
    case H_CR_BPC : /* backup pc */
      return CPU (h_cr[H_CR_BPC]) & 0xfffffffe;
    case H_CR_BBPC : /* backup backup pc */
      return CPU (h_cr[H_CR_BBPC]) & 0xfffffffe;
    case 4 : /* ??? unspecified, but apparently available */
    case 5 : /* ??? unspecified, but apparently available */
      return CPU (h_cr[cr]);
    default :
      return 0;
    }
}

void
m32rbf_h_cr_set_handler (SIM_CPU *current_cpu, UINT cr, USI newval)
{
  switch (cr)
    {
    case H_CR_PSW : /* psw */
      {
	int old_sm = (CPU (h_psw) & 0x80) != 0;
	int new_sm = (newval & 0x80) != 0;
	CPU (h_bpsw) = (newval >> 8) & 0xff;
	CPU (h_psw) = newval & 0xff;
	SET_H_COND (newval & 1);
	/* When switching stack modes, update the registers.  */
	if (old_sm != new_sm)
	  {
	    if (old_sm)
	      {
		/* Switching user -> system.  */
		CPU (h_cr[H_CR_SPU]) = CPU (h_gr[H_GR_SP]);
		CPU (h_gr[H_GR_SP]) = CPU (h_cr[H_CR_SPI]);
	      }
	    else
	      {
		/* Switching system -> user.  */
		CPU (h_cr[H_CR_SPI]) = CPU (h_gr[H_GR_SP]);
		CPU (h_gr[H_GR_SP]) = CPU (h_cr[H_CR_SPU]);
	      }
	  }
	break;
      }
    case H_CR_BBPSW : /* backup backup psw */
      CPU (h_bbpsw) = newval & 0xff;
      break;
    case H_CR_CBR : /* condition bit */
      SET_H_COND (newval & 1);
      break;
    case H_CR_SPI : /* interrupt stack pointer */
      if (! GET_H_SM ())
	CPU (h_gr[H_GR_SP]) = newval;
      else
	CPU (h_cr[H_CR_SPI]) = newval;
      break;
    case H_CR_SPU : /* user stack pointer */
      if (GET_H_SM ())
	CPU (h_gr[H_GR_SP]) = newval;
      else
	CPU (h_cr[H_CR_SPU]) = newval;
      break;
    case H_CR_BPC : /* backup pc */
      CPU (h_cr[H_CR_BPC]) = newval;
      break;
    case H_CR_BBPC : /* backup backup pc */
      CPU (h_cr[H_CR_BBPC]) = newval;
      break;
    case 4 : /* ??? unspecified, but apparently available */
    case 5 : /* ??? unspecified, but apparently available */
      CPU (h_cr[cr]) = newval;
      break;
    default :
      /* ignore */
      break;
    }
}

/* Cover fns to access h-psw.  */

UQI
m32rbf_h_psw_get_handler (SIM_CPU *current_cpu)
{
  return (CPU (h_psw) & 0xfe) | (CPU (h_cond) & 1);
}

void
m32rbf_h_psw_set_handler (SIM_CPU *current_cpu, UQI newval)
{
  CPU (h_psw) = newval;
  CPU (h_cond) = newval & 1;
}

/* Cover fns to access h-accum.  */

DI
m32rbf_h_accum_get_handler (SIM_CPU *current_cpu)
{
  /* Sign extend the top 8 bits.  */
  DI r;
#if 1
  r = ANDDI (CPU (h_accum), MAKEDI (0xffffff, 0xffffffff));
  r = XORDI (r, MAKEDI (0x800000, 0));
  r = SUBDI (r, MAKEDI (0x800000, 0));
#else
  SI hi,lo;
  r = CPU (h_accum);
  hi = GETHIDI (r);
  lo = GETLODI (r);
  hi = ((hi & 0xffffff) ^ 0x800000) - 0x800000;
  r = MAKEDI (hi, lo);
#endif
  return r;
}

void
m32rbf_h_accum_set_handler (SIM_CPU *current_cpu, DI newval)
{
  CPU (h_accum) = newval;
}
\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
m32rbf_model_insn_before (SIM_CPU *cpu, int first_p)
{
  M32R_MISC_PROFILE *mp = CPU_M32R_MISC_PROFILE (cpu);
  mp->cti_stall = 0;
  mp->load_stall = 0;
  if (first_p)
    {
      mp->load_regs_pending = 0;
      mp->biggest_cycles = 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
m32rbf_model_insn_after (SIM_CPU *cpu, int last_p, int cycles)
{
  PROFILE_DATA *p = CPU_PROFILE_DATA (cpu);
  M32R_MISC_PROFILE *mp = CPU_M32R_MISC_PROFILE (cpu);
  unsigned long total = cycles + mp->cti_stall + mp->load_stall;

  if (last_p)
    {
      unsigned long biggest = total > mp->biggest_cycles ? total : mp->biggest_cycles;
      PROFILE_MODEL_TOTAL_CYCLES (p) += biggest;
      PROFILE_MODEL_CUR_INSN_CYCLES (p) = total;
    }
  else
    {
      /* Here we take advantage of the fact that !last_p -> first_p.  */
      mp->biggest_cycles = total;
      PROFILE_MODEL_CUR_INSN_CYCLES (p) = total;
    }

  /* Branch and load stall counts are recorded independently of the
     total cycle count.  */
  PROFILE_MODEL_CTI_STALL_CYCLES (p) += mp->cti_stall;
  PROFILE_MODEL_LOAD_STALL_CYCLES (p) += mp->load_stall;

  mp->load_regs = mp->load_regs_pending;
}

static INLINE void
check_load_stall (SIM_CPU *cpu, int regno)
{
  UINT h_gr = CPU_M32R_MISC_PROFILE (cpu)->load_regs;

  if (regno != -1
      && (h_gr & (1 << regno)) != 0)
    {
      CPU_M32R_MISC_PROFILE (cpu)->load_stall += 2;
      if (TRACE_INSN_P (cpu))
	cgen_trace_printf (cpu, " ; Load stall of 2 cycles.");
    }
}

int
m32rbf_model_m32r_d_u_exec (SIM_CPU *cpu, const IDESC *idesc,
			    int unit_num, int referenced,
			    INT sr, INT sr2, INT dr)
{
  check_load_stall (cpu, sr);
  check_load_stall (cpu, sr2);
  return idesc->timing->units[unit_num].done;
}

int
m32rbf_model_m32r_d_u_cmp (SIM_CPU *cpu, const IDESC *idesc,
			   int unit_num, int referenced,
			   INT src1, INT src2)
{
  check_load_stall (cpu, src1);
  check_load_stall (cpu, src2);
  return idesc->timing->units[unit_num].done;
}

int
m32rbf_model_m32r_d_u_mac (SIM_CPU *cpu, const IDESC *idesc,
			   int unit_num, int referenced,
			   INT src1, INT src2)
{
  check_load_stall (cpu, src1);
  check_load_stall (cpu, src2);
  return idesc->timing->units[unit_num].done;
}

int
m32rbf_model_m32r_d_u_cti (SIM_CPU *cpu, const IDESC *idesc,
			   int unit_num, int referenced,
			   INT sr)
{
  PROFILE_DATA *profile = CPU_PROFILE_DATA (cpu);
  int taken_p = (referenced & (1 << 1)) != 0;

  check_load_stall (cpu, sr);
  if (taken_p)
    {
      CPU_M32R_MISC_PROFILE (cpu)->cti_stall += 2;
      PROFILE_MODEL_TAKEN_COUNT (profile) += 1;
    }
  else
    PROFILE_MODEL_UNTAKEN_COUNT (profile) += 1;
  return idesc->timing->units[unit_num].done;
}

int
m32rbf_model_m32r_d_u_load (SIM_CPU *cpu, const IDESC *idesc,
			    int unit_num, int referenced,
			    INT sr, INT dr)
{
  CPU_M32R_MISC_PROFILE (cpu)->load_regs_pending |= (1 << dr);
  check_load_stall (cpu, sr);
  return idesc->timing->units[unit_num].done;
}

int
m32rbf_model_m32r_d_u_store (SIM_CPU *cpu, const IDESC *idesc,
			     int unit_num, int referenced,
			     INT src1, INT src2)
{
  check_load_stall (cpu, src1);
  check_load_stall (cpu, src2);
  return idesc->timing->units[unit_num].done;
}

int
m32rbf_model_test_u_exec (SIM_CPU *cpu, const IDESC *idesc,
			  int unit_num, int referenced)
{
  return idesc->timing->units[unit_num].done;
}

#endif /* WITH_PROFILE_MODEL_P */
Commit	Line	Data
c906108c SS	1	/* m32r simulator support code
	2	Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
	3	Contributed by Cygnus Support.
	4
	5	This file is part of GDB, the GNU debugger.
	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
	9	the Free Software Foundation; either version 2, or (at your option)
	10	any later version.
	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
	17	You should have received a copy of the GNU General Public License along
	18	with this program; if not, write to the Free Software Foundation, Inc.,
	19	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	20
	21	#define WANT_CPU m32rbf
	22	#define WANT_CPU_M32RBF
	23
	24	#include "sim-main.h"
	25	#include "cgen-mem.h"
	26	#include "cgen-ops.h"
	27
	28	/* Decode gdb ctrl register number. */
	29
	30	int
	31	m32r_decode_gdb_ctrl_regnum (int gdb_regnum)
	32	{
	33	switch (gdb_regnum)
	34	{
	35	case PSW_REGNUM : return H_CR_PSW;
	36	case CBR_REGNUM : return H_CR_CBR;
	37	case SPI_REGNUM : return H_CR_SPI;
	38	case SPU_REGNUM : return H_CR_SPU;
	39	case BPC_REGNUM : return H_CR_BPC;
	40	case BBPSW_REGNUM : return H_CR_BBPSW;
	41	case BBPC_REGNUM : return H_CR_BBPC;
	42	}
	43	abort ();
	44	}
	45
	46	/* The contents of BUF are in target byte order. */
	47
	48	int
	49	m32rbf_fetch_register (SIM_CPU current_cpu, int rn, unsigned char buf, int len)
	50	{
	51	if (rn < 16)
	52	SETTWI (buf, a_m32r_h_gr_get (current_cpu, rn));
	53	else
	54	switch (rn)
	55	{
	56	case PSW_REGNUM :
	57	case CBR_REGNUM :
	58	case SPI_REGNUM :
	59	case SPU_REGNUM :
	60	case BPC_REGNUM :
	61	case BBPSW_REGNUM :
	62	case BBPC_REGNUM :
	63	SETTWI (buf, a_m32r_h_cr_get (current_cpu,
	64	m32r_decode_gdb_ctrl_regnum (rn)));
65	break;
66	case PC_REGNUM :
67	SETTWI (buf, a_m32r_h_pc_get (current_cpu));
68	break;
69	case ACCL_REGNUM :
70	SETTWI (buf, GETLODI (a_m32r_h_accum_get (current_cpu)));
71	break;
72	case ACCH_REGNUM :
73	SETTWI (buf, GETHIDI (a_m32r_h_accum_get (current_cpu)));
74	break;
75	default :
76	return 0;
77	}
78
79	return -1; /FIXME/
80	}
81
82	/* The contents of BUF are in target byte order. */
83
84	int
85	m32rbf_store_register (SIM_CPU current_cpu, int rn, unsigned char buf, int len)
86	{
87	if (rn < 16)
88	a_m32r_h_gr_set (current_cpu, rn, GETTWI (buf));
89	else
90	switch (rn)
91	{
92	case PSW_REGNUM :
93	case CBR_REGNUM :
94	case SPI_REGNUM :
95	case SPU_REGNUM :
96	case BPC_REGNUM :
97	case BBPSW_REGNUM :
98	case BBPC_REGNUM :
99	a_m32r_h_cr_set (current_cpu,
100	m32r_decode_gdb_ctrl_regnum (rn),
101	GETTWI (buf));
102	break;
103	case PC_REGNUM :
104	a_m32r_h_pc_set (current_cpu, GETTWI (buf));
105	break;
106	case ACCL_REGNUM :
107	{
108	DI val = a_m32r_h_accum_get (current_cpu);
109	SETLODI (val, GETTWI (buf));
110	a_m32r_h_accum_set (current_cpu, val);
111	break;
112	}
113	case ACCH_REGNUM :
114	{
115	DI val = a_m32r_h_accum_get (current_cpu);
116	SETHIDI (val, GETTWI (buf));
117	a_m32r_h_accum_set (current_cpu, val);
118	break;
119	}
120	default :
121	return 0;
122	}
123
124	return -1; /FIXME/
125	}
126	\f
127	USI
128	m32rbf_h_cr_get_handler (SIM_CPU *current_cpu, UINT cr)
129	{
130	switch (cr)
131	{
132	case H_CR_PSW : /* psw */
133	return (((CPU (h_bpsw) & 0xc1) << 8)
134	\| ((CPU (h_psw) & 0xc0) << 0)
135	\| GET_H_COND ());
136	case H_CR_BBPSW : /* backup backup psw */
137	return CPU (h_bbpsw) & 0xc1;
138	case H_CR_CBR : /* condition bit */
139	return GET_H_COND ();
140	case H_CR_SPI : /* interrupt stack pointer */
141	if (! GET_H_SM ())
142	return CPU (h_gr[H_GR_SP]);
143	else
144	return CPU (h_cr[H_CR_SPI]);
145	case H_CR_SPU : /* user stack pointer */
146	if (GET_H_SM ())
147	return CPU (h_gr[H_GR_SP]);
148	else
149	return CPU (h_cr[H_CR_SPU]);
150	case H_CR_BPC : /* backup pc */
151	return CPU (h_cr[H_CR_BPC]) & 0xfffffffe;
152	case H_CR_BBPC : /* backup backup pc */
153	return CPU (h_cr[H_CR_BBPC]) & 0xfffffffe;
154	case 4 : /* ??? unspecified, but apparently available */
155	case 5 : /* ??? unspecified, but apparently available */
156	return CPU (h_cr[cr]);
157	default :
158	return 0;
159	}
160	}
161
162	void
163	m32rbf_h_cr_set_handler (SIM_CPU *current_cpu, UINT cr, USI newval)
164	{
165	switch (cr)
166	{
167	case H_CR_PSW : /* psw */
168	{
169	int old_sm = (CPU (h_psw) & 0x80) != 0;
170	int new_sm = (newval & 0x80) != 0;
171	CPU (h_bpsw) = (newval >> 8) & 0xff;
172	CPU (h_psw) = newval & 0xff;
173	SET_H_COND (newval & 1);
174	/* When switching stack modes, update the registers. */
175	if (old_sm != new_sm)
176	{
177	if (old_sm)
178	{
179	/* Switching user -> system. */
180	CPU (h_cr[H_CR_SPU]) = CPU (h_gr[H_GR_SP]);
181	CPU (h_gr[H_GR_SP]) = CPU (h_cr[H_CR_SPI]);
182	}
183	else
184	{
185	/* Switching system -> user. */
186	CPU (h_cr[H_CR_SPI]) = CPU (h_gr[H_GR_SP]);
187	CPU (h_gr[H_GR_SP]) = CPU (h_cr[H_CR_SPU]);
188	}
189	}
190	break;
191	}
192	case H_CR_BBPSW : /* backup backup psw */
193	CPU (h_bbpsw) = newval & 0xff;
194	break;
195	case H_CR_CBR : /* condition bit */
196	SET_H_COND (newval & 1);
197	break;
198	case H_CR_SPI : /* interrupt stack pointer */
199	if (! GET_H_SM ())
200	CPU (h_gr[H_GR_SP]) = newval;
201	else
202	CPU (h_cr[H_CR_SPI]) = newval;
203	break;
204	case H_CR_SPU : /* user stack pointer */
205	if (GET_H_SM ())
206	CPU (h_gr[H_GR_SP]) = newval;
207	else
208	CPU (h_cr[H_CR_SPU]) = newval;
209	break;
210	case H_CR_BPC : /* backup pc */
211	CPU (h_cr[H_CR_BPC]) = newval;
212	break;
213	case H_CR_BBPC : /* backup backup pc */
214	CPU (h_cr[H_CR_BBPC]) = newval;
215	break;
216	case 4 : /* ??? unspecified, but apparently available */
217	case 5 : /* ??? unspecified, but apparently available */
218	CPU (h_cr[cr]) = newval;
219	break;
220	default :
221	/* ignore */
222	break;
223	}
224	}
225
226	/* Cover fns to access h-psw. */
227
228	UQI
229	m32rbf_h_psw_get_handler (SIM_CPU *current_cpu)
230	{
231	return (CPU (h_psw) & 0xfe) \| (CPU (h_cond) & 1);
232	}
233
234	void
235	m32rbf_h_psw_set_handler (SIM_CPU *current_cpu, UQI newval)
236	{
237	CPU (h_psw) = newval;
238	CPU (h_cond) = newval & 1;
239	}
240
241	/* Cover fns to access h-accum. */
242
243	DI
244	m32rbf_h_accum_get_handler (SIM_CPU *current_cpu)
245	{
246	/* Sign extend the top 8 bits. */
247	DI r;
248	#if 1
249	r = ANDDI (CPU (h_accum), MAKEDI (0xffffff, 0xffffffff));
250	r = XORDI (r, MAKEDI (0x800000, 0));
251	r = SUBDI (r, MAKEDI (0x800000, 0));
252	#else
253	SI hi,lo;
254	r = CPU (h_accum);
255	hi = GETHIDI (r);
256	lo = GETLODI (r);
257	hi = ((hi & 0xffffff) ^ 0x800000) - 0x800000;
258	r = MAKEDI (hi, lo);
259	#endif
260	return r;
261	}
262
263	void
264	m32rbf_h_accum_set_handler (SIM_CPU *current_cpu, DI newval)
265	{
266	CPU (h_accum) = newval;
267	}
268	\f
269	#if WITH_PROFILE_MODEL_P
270
271	/* FIXME: Some of these should be inline or macros. Later. */
272
273	/* Initialize cycle counting for an insn.
274	FIRST_P is non-zero if this is the first insn in a set of parallel
275	insns. */
276
277	void
278	m32rbf_model_insn_before (SIM_CPU *cpu, int first_p)
279	{
280	M32R_MISC_PROFILE *mp = CPU_M32R_MISC_PROFILE (cpu);
281	mp->cti_stall = 0;
282	mp->load_stall = 0;
283	if (first_p)
284	{
285	mp->load_regs_pending = 0;
286	mp->biggest_cycles = 0;
287	}
288	}
289
290	/* Record the cycles computed for an insn.
291	LAST_P is non-zero if this is the last insn in a set of parallel insns,
292	and we update the total cycle count.
293	CYCLES is the cycle count of the insn. */
294
295	void
296	m32rbf_model_insn_after (SIM_CPU *cpu, int last_p, int cycles)
297	{
298	PROFILE_DATA *p = CPU_PROFILE_DATA (cpu);
299	M32R_MISC_PROFILE *mp = CPU_M32R_MISC_PROFILE (cpu);
300	unsigned long total = cycles + mp->cti_stall + mp->load_stall;
301
302	if (last_p)
303	{
304	unsigned long biggest = total > mp->biggest_cycles ? total : mp->biggest_cycles;
305	PROFILE_MODEL_TOTAL_CYCLES (p) += biggest;
306	PROFILE_MODEL_CUR_INSN_CYCLES (p) = total;
307	}
308	else
309	{
310	/* Here we take advantage of the fact that !last_p -> first_p. */
311	mp->biggest_cycles = total;
312	PROFILE_MODEL_CUR_INSN_CYCLES (p) = total;
313	}
314
315	/* Branch and load stall counts are recorded independently of the
316	total cycle count. */
317	PROFILE_MODEL_CTI_STALL_CYCLES (p) += mp->cti_stall;
318	PROFILE_MODEL_LOAD_STALL_CYCLES (p) += mp->load_stall;
319
320	mp->load_regs = mp->load_regs_pending;
321	}
322
323	static INLINE void
324	check_load_stall (SIM_CPU *cpu, int regno)
325	{
326	UINT h_gr = CPU_M32R_MISC_PROFILE (cpu)->load_regs;
327
328	if (regno != -1
329	&& (h_gr & (1 << regno)) != 0)
330	{
331	CPU_M32R_MISC_PROFILE (cpu)->load_stall += 2;
332	if (TRACE_INSN_P (cpu))
333	cgen_trace_printf (cpu, " ; Load stall of 2 cycles.");
334	}
335	}
336
337	int
338	m32rbf_model_m32r_d_u_exec (SIM_CPU cpu, const IDESC idesc,
339	int unit_num, int referenced,
340	INT sr, INT sr2, INT dr)
341	{
342	check_load_stall (cpu, sr);
343	check_load_stall (cpu, sr2);
344	return idesc->timing->units[unit_num].done;
345	}
346
347	int
348	m32rbf_model_m32r_d_u_cmp (SIM_CPU cpu, const IDESC idesc,
349	int unit_num, int referenced,
350	INT src1, INT src2)
351	{
352	check_load_stall (cpu, src1);
353	check_load_stall (cpu, src2);
354	return idesc->timing->units[unit_num].done;
355	}
356
357	int
358	m32rbf_model_m32r_d_u_mac (SIM_CPU cpu, const IDESC idesc,
359	int unit_num, int referenced,
360	INT src1, INT src2)
361	{
362	check_load_stall (cpu, src1);
363	check_load_stall (cpu, src2);
364	return idesc->timing->units[unit_num].done;
365	}
366
367	int
368	m32rbf_model_m32r_d_u_cti (SIM_CPU cpu, const IDESC idesc,
369	int unit_num, int referenced,
370	INT sr)
371	{
372	PROFILE_DATA *profile = CPU_PROFILE_DATA (cpu);
373	int taken_p = (referenced & (1 << 1)) != 0;
374
375	check_load_stall (cpu, sr);
376	if (taken_p)
377	{
378	CPU_M32R_MISC_PROFILE (cpu)->cti_stall += 2;
379	PROFILE_MODEL_TAKEN_COUNT (profile) += 1;
380	}
381	else
382	PROFILE_MODEL_UNTAKEN_COUNT (profile) += 1;
383	return idesc->timing->units[unit_num].done;
384	}
385
386	int
387	m32rbf_model_m32r_d_u_load (SIM_CPU cpu, const IDESC idesc,
388	int unit_num, int referenced,
389	INT sr, INT dr)
390	{
391	CPU_M32R_MISC_PROFILE (cpu)->load_regs_pending \|= (1 << dr);
392	check_load_stall (cpu, sr);
393	return idesc->timing->units[unit_num].done;
394	}
395
396	int
397	m32rbf_model_m32r_d_u_store (SIM_CPU cpu, const IDESC idesc,
398	int unit_num, int referenced,
399	INT src1, INT src2)
400	{
401	check_load_stall (cpu, src1);
402	check_load_stall (cpu, src2);
403	return idesc->timing->units[unit_num].done;
404	}
405
406	int
407	m32rbf_model_test_u_exec (SIM_CPU cpu, const IDESC idesc,
408	int unit_num, int referenced)
409	{
410	return idesc->timing->units[unit_num].done;
411	}
412
413	#endif /* WITH_PROFILE_MODEL_P */