1 /* CRIS base simulator support code
2 Copyright (C) 2004, 2005 Free Software Foundation, Inc.
3 Contributed by Axis Communications.
5 This file is part of the GNU simulators.
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)
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.
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. */
21 /* The infrastructure is based on that of i960.c. */
29 #define MY(f) XCONCAT3(crisv,BASENUM,f)
31 /* Dispatcher for break insn. */
34 MY (f_break_handler) (SIM_CPU *cpu, USI breaknum, USI pc)
36 SIM_DESC sd = CPU_STATE (cpu);
39 MY (f_h_pc_set) (cpu, ret);
41 /* FIXME: Error out if IBR or ERP set. */
45 MY (f_h_gr_set (cpu, 10,
46 cris_break_13_handler (cpu,
47 MY (f_h_gr_get (cpu, 9)),
48 MY (f_h_gr_get (cpu, 10)),
49 MY (f_h_gr_get (cpu, 11)),
50 MY (f_h_gr_get (cpu, 12)),
51 MY (f_h_gr_get (cpu, 13)),
52 MY (f_h_sr_get (cpu, 7)),
53 MY (f_h_sr_get (cpu, 11)),
58 sim_io_printf (sd, "%x\n", MY (f_h_gr_get (cpu, 3)));
62 /* Re-use the Linux exit call. */
63 cris_break_13_handler (cpu, /* TARGET_SYS_exit */ 1, 0,
70 return MY (f_h_pc_get) (cpu);
73 /* Accessor function for simulator internal use.
74 Note the contents of BUF are in target byte order. */
77 MY (f_fetch_register) (SIM_CPU *current_cpu, int rn,
78 unsigned char *buf, int len ATTRIBUTE_UNUSED)
80 SETTSI (buf, XCONCAT3(crisv,BASENUM,f_h_gr_get) (current_cpu, rn));
84 /* Accessor function for simulator internal use.
85 Note the contents of BUF are in target byte order. */
88 MY (f_store_register) (SIM_CPU *current_cpu, int rn,
89 unsigned char *buf, int len ATTRIBUTE_UNUSED)
91 XCONCAT3(crisv,BASENUM,f_h_gr_set) (current_cpu, rn, GETTSI (buf));
95 #if WITH_PROFILE_MODEL_P
97 /* FIXME: Some of these should be inline or macros. Later. */
99 /* Initialize cycle counting for an insn.
100 FIRST_P is non-zero if this is the first insn in a set of parallel
104 MY (f_model_insn_before) (SIM_CPU *current_cpu, int first_p ATTRIBUTE_UNUSED)
106 /* To give the impression that we actually know what PC is, we have to
107 dump register contents *before* the *next* insn, not after the
108 *previous* insn. Uhh... */
110 /* FIXME: Move this to separate, overridable function. */
111 if ((CPU_CRIS_MISC_PROFILE (current_cpu)->flags
112 & FLAG_CRIS_MISC_PROFILE_XSIM_TRACE)
113 #ifdef GET_H_INSN_PREFIXED_P
114 /* For versions with prefixed insns, trace the combination as
116 && !GET_H_INSN_PREFIXED_P ()
122 unsigned64 cycle_count;
124 SIM_DESC sd = CPU_STATE (current_cpu);
126 cris_trace_printf (sd, current_cpu, "%lx ",
127 0xffffffffUL & (unsigned long) (CPU (h_pc)));
129 for (i = 0; i < 15; i++)
130 cris_trace_printf (sd, current_cpu, "%lx ",
132 & (unsigned long) (XCONCAT3(crisv,BASENUM,
133 f_h_gr_get) (current_cpu,
135 flags[0] = GET_H_IBIT () != 0 ? 'I' : 'i';
136 flags[1] = GET_H_XBIT () != 0 ? 'X' : 'x';
137 flags[2] = GET_H_NBIT () != 0 ? 'N' : 'n';
138 flags[3] = GET_H_ZBIT () != 0 ? 'Z' : 'z';
139 flags[4] = GET_H_VBIT () != 0 ? 'V' : 'v';
140 flags[5] = GET_H_CBIT () != 0 ? 'C' : 'c';
143 /* For anything else than basic tracing we'd add stall cycles for
144 e.g. unaligned accesses. FIXME: add --cris-trace=x options to
145 match --cris-cycles=x. */
147 = (CPU_CRIS_MISC_PROFILE (current_cpu)->basic_cycle_count
148 - CPU_CRIS_PREV_MISC_PROFILE (current_cpu)->basic_cycle_count);
150 /* Emit ACR after flags and cycle count for this insn. */
152 cris_trace_printf (sd, current_cpu, "%s %d %lx\n", flags,
155 & (unsigned long) (XCONCAT3(crisv,BASENUM,
156 f_h_gr_get) (current_cpu,
159 cris_trace_printf (sd, current_cpu, "%s %d\n", flags,
162 CPU_CRIS_PREV_MISC_PROFILE (current_cpu)[0]
163 = CPU_CRIS_MISC_PROFILE (current_cpu)[0];
167 /* Record the cycles computed for an insn.
168 LAST_P is non-zero if this is the last insn in a set of parallel insns,
169 and we update the total cycle count.
170 CYCLES is the cycle count of the insn. */
173 MY (f_model_insn_after) (SIM_CPU *current_cpu, int last_p ATTRIBUTE_UNUSED,
176 PROFILE_DATA *p = CPU_PROFILE_DATA (current_cpu);
178 PROFILE_MODEL_TOTAL_CYCLES (p) += cycles;
179 CPU_CRIS_MISC_PROFILE (current_cpu)->basic_cycle_count += cycles;
180 PROFILE_MODEL_CUR_INSN_CYCLES (p) = cycles;
183 /* Initialize cycle counting for an insn.
184 FIRST_P is non-zero if this is the first insn in a set of parallel
188 MY (f_model_init_insn_cycles) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
189 int first_p ATTRIBUTE_UNUSED)
194 /* Record the cycles computed for an insn.
195 LAST_P is non-zero if this is the last insn in a set of parallel insns,
196 and we update the total cycle count. */
199 MY (f_model_update_insn_cycles) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
200 int last_p ATTRIBUTE_UNUSED)
207 MY (f_model_record_cycles) (SIM_CPU *current_cpu, unsigned long cycles)
213 MY (f_model_mark_get_h_gr) (SIM_CPU *current_cpu, ARGBUF *abuf)
219 MY (f_model_mark_set_h_gr) (SIM_CPU *current_cpu, ARGBUF *abuf)
225 /* Create the context for a thread. */
228 MY (make_thread_cpu_data) (SIM_CPU *current_cpu, void *context)
230 void *info = xmalloc (current_cpu->thread_cpu_data_size);
235 current_cpu->thread_cpu_data_size);
237 memset (info, 0, current_cpu->thread_cpu_data_size),abort();
241 /* Hook function for per-cpu simulator initialization. */
244 MY (f_specific_init) (SIM_CPU *current_cpu)
246 current_cpu->make_thread_cpu_data = MY (make_thread_cpu_data);
247 current_cpu->thread_cpu_data_size = sizeof (current_cpu->cpu_data);
250 /* Model function for arbitrary single stall cycles. */
253 MY (XCONCAT3 (f_model_crisv,BASENUM,
254 _u_stall)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
257 int referenced ATTRIBUTE_UNUSED)
259 return idesc->timing->units[unit_num].done;
262 #ifndef SPECIFIC_U_SKIP4_FN
264 /* Model function for u-skip4 unit. */
267 MY (XCONCAT3 (f_model_crisv,BASENUM,
268 _u_skip4)) (SIM_CPU *current_cpu,
271 int referenced ATTRIBUTE_UNUSED)
273 /* Handle PC not being updated with pbb. FIXME: What if not pbb? */
275 return idesc->timing->units[unit_num].done;
280 #ifndef SPECIFIC_U_EXEC_FN
282 /* Model function for u-exec unit. */
285 MY (XCONCAT3 (f_model_crisv,BASENUM,
286 _u_exec)) (SIM_CPU *current_cpu,
288 int unit_num, int referenced ATTRIBUTE_UNUSED)
290 /* Handle PC not being updated with pbb. FIXME: What if not pbb? */
292 return idesc->timing->units[unit_num].done;
296 #ifndef SPECIFIC_U_MEM_FN
298 /* Model function for u-mem unit. */
301 MY (XCONCAT3 (f_model_crisv,BASENUM,
302 _u_mem)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
305 int referenced ATTRIBUTE_UNUSED)
307 return idesc->timing->units[unit_num].done;
311 #ifndef SPECIFIC_U_CONST16_FN
313 /* Model function for u-const16 unit. */
316 MY (XCONCAT3 (f_model_crisv,BASENUM,
317 _u_const16)) (SIM_CPU *current_cpu,
320 int referenced ATTRIBUTE_UNUSED)
323 return idesc->timing->units[unit_num].done;
325 #endif /* SPECIFIC_U_CONST16_FN */
327 #ifndef SPECIFIC_U_CONST32_FN
329 /* This will be incorrect for early models, where a dword always take
331 #define CRIS_MODEL_MASK_PC_STALL 2
333 /* Model function for u-const32 unit. */
336 MY (XCONCAT3 (f_model_crisv,BASENUM,
337 _u_const32)) (SIM_CPU *current_cpu,
340 int referenced ATTRIBUTE_UNUSED)
343 = (((CPU (h_pc) + 2) & CRIS_MODEL_MASK_PC_STALL)
344 == CRIS_MODEL_MASK_PC_STALL);
346 /* Handle PC not being updated with pbb. FIXME: What if not pbb? */
347 CPU_CRIS_MISC_PROFILE (current_cpu)->unaligned_mem_dword_count
351 return idesc->timing->units[unit_num].done;
353 #endif /* SPECIFIC_U_CONST32_FN */
355 #ifndef SPECIFIC_U_MOVEM_FN
357 /* Model function for u-movem unit. */
360 MY (XCONCAT3 (f_model_crisv,BASENUM,
361 _u_movem)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
362 const IDESC *idesc ATTRIBUTE_UNUSED,
363 int unit_num ATTRIBUTE_UNUSED,
364 int referenced ATTRIBUTE_UNUSED,
367 /* FIXME: Add cycles for misalignment. */
372 /* We don't record movem move cycles in movemsrc_stall_count since
373 those cycles have historically been handled as ordinary cycles. */
376 #endif /* SPECIFIC_U_MOVEM_FN */
378 #endif /* WITH_PROFILE_MODEL_P */