1 /* Main simulator entry points for the M32R.
2 Copyright (C) 1996, 1997 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
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, or (at your option)
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.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 #include "libiberty.h"
29 /* Global state until sim_open starts creating and returning it
30 [and the other simulator i/f fns take it as an argument]. */
31 struct sim_state sim_global_state;
33 /* FIXME: Do we *need* to pass state to the semantic routines? */
36 /* Create an instance of the simulator. */
39 sim_open (kind, callback, abfd, argv)
41 host_callback *callback;
46 SIM_DESC sd = &sim_global_state;
48 /* FIXME: until we alloc one, use the global. */
49 memset (sd, 0, sizeof (sim_global_state));
50 STATE_OPEN_KIND (sd) = kind;
51 STATE_CALLBACK (sd) = callback;
53 if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
56 #if 0 /* FIXME: 'twould be nice if we could do this */
57 /* These options override any module options.
58 Obviously ambiguity should be avoided, however the caller may wish to
59 augment the meaning of an option. */
60 if (extra_options != NULL)
61 sim_add_option_table (sd, extra_options);
64 /* getopt will print the error message so we just have to exit if this fails.
65 FIXME: Hmmm... in the case of gdb we need getopt to call
67 if (sim_parse_args (sd, argv) != SIM_RC_OK)
69 sim_module_uninstall (sd);
73 if (sim_post_argv_init (sd) != SIM_RC_OK)
75 sim_module_uninstall (sd);
79 /* Initialize various cgen things not done by common framework. */
83 sim_core_attach (sd, NULL, attach_raw_memory, access_read_write_exec,
84 0, 0, M32R_DEFAULT_MEM_SIZE, NULL, NULL);
86 /* Only needed for profiling, but the structure member is small. */
87 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
88 memset (& CPU_M32R_PROFILE (STATE_CPU (sd, i)), 0,
89 sizeof (CPU_M32R_PROFILE (STATE_CPU (sd, i))));
91 return &sim_global_state;
95 sim_close (sd, quitting)
99 sim_module_uninstall (sd);
103 sim_load (sd, prog, abfd, from_tty)
109 extern bfd *sim_load_file (); /* ??? Don't know where this should live. */
112 prog_bfd = sim_load_file (sd, STATE_MY_NAME (sd),
115 /* pass NULL for abfd, we always open our own */
117 STATE_OPEN_KIND (sd) == SIM_OPEN_DEBUG);
118 if (prog_bfd == NULL)
120 sim_analyze_program (sd, prog_bfd);
121 STATE_CPU_CPU (sd, 0)->pc = STATE_START_ADDR (sd);
126 sim_create_inferior (sd, argv, envp)
132 STATE_ARGV (sd) = sim_copy_argv (argv);
133 STATE_ENVP (sd) = sim_copy_argv (envp);
146 sim_stop (SIM_DESC sd)
148 return engine_stop (sd);
152 sim_resume (sd, step, siggnal)
156 engine_run (sd, step, siggnal);
160 sim_stop_reason (sd, reason, sigrc)
162 enum sim_stop *reason;
165 sim_cpu *cpu = STATE_CPU (sd, 0);
167 /* Map sim_state to sim_stop. */
168 switch (CPU_EXEC_STATE (cpu))
170 case EXEC_STATE_EXITED :
171 *reason = sim_exited;
172 *sigrc = CPU_HALT_SIGRC (cpu);
174 case EXEC_STATE_STOPPED :
175 *reason = sim_stopped;
176 *sigrc = sim_signal_to_host (CPU_HALT_SIGRC (cpu));
178 case EXEC_STATE_SIGNALLED :
179 *reason = sim_signalled;
180 *sigrc = sim_signal_to_host (CPU_HALT_SIGRC (cpu));
185 /* PROFILE_CPU_CALLBACK */
188 print_m32r_misc_cpu (SIM_CPU *cpu, int verbose)
190 SIM_DESC sd = CPU_STATE (cpu);
193 if (CPU_PROFILE_FLAGS (cpu) [PROFILE_INSN_IDX])
195 sim_io_printf (sd, "Miscellaneous Statistics\n\n");
196 sim_io_printf (sd, " %-*s %s\n\n",
197 PROFILE_LABEL_WIDTH, "Fill nops:",
198 sim_add_commas (buf, sizeof (buf),
199 CPU_M32R_PROFILE (cpu).fillnop_count));
204 sim_info (sd, verbose)
208 profile_print (sd, STATE_VERBOSE_P (sd), NULL, print_m32r_misc_cpu);
211 /* The contents of BUF are in target byte order. */
214 sim_fetch_register (sd, rn, buf)
220 SETTWI (buf, STATE_CPU_CPU (sd, 0)->h_gr[rn]);
222 SETTWI (buf, STATE_CPU_CPU (sd, 0)->h_cr[rn - 16]);
225 SETTWI (buf, STATE_CPU_CPU (sd, 0)->pc);
228 SETTWI (buf, GETLODI (STATE_CPU_CPU (sd, 0)->h_accum));
231 SETTWI (buf, GETHIDI (STATE_CPU_CPU (sd, 0)->h_accum));
234 case 23: *reg = STATE_CPU_CPU (sd, 0)->h_cond; break;
235 case 24: *reg = STATE_CPU_CPU (sd, 0)->h_sm; break;
236 case 25: *reg = STATE_CPU_CPU (sd, 0)->h_bsm; break;
237 case 26: *reg = STATE_CPU_CPU (sd, 0)->h_ie; break;
238 case 27: *reg = STATE_CPU_CPU (sd, 0)->h_bie; break;
239 case 28: *reg = STATE_CPU_CPU (sd, 0)->h_bcarry; break; /* rename: bc */
240 case 29: memcpy (buf, &STATE_CPU_CPU (sd, 0)->h_bpc, sizeof(WI)); break; /* duplicate */
246 /* The contents of BUF are in target byte order. */
249 sim_store_register (sd, rn, buf)
255 STATE_CPU_CPU (sd, 0)->h_gr[rn] = GETTWI (buf);
257 STATE_CPU_CPU (sd, 0)->h_cr[rn - 16] = GETTWI (buf);
260 STATE_CPU_CPU (sd, 0)->pc = GETTWI (buf);
263 SETLODI (STATE_CPU_CPU (sd, 0)->h_accum, GETTWI (buf));
266 SETHIDI (STATE_CPU_CPU (sd, 0)->h_accum, GETTWI (buf));
269 case 23: STATE_CPU_CPU (sd, 0)->h_cond = *reg; break;
270 case 24: STATE_CPU_CPU (sd, 0)->h_sm = *reg; break;
271 case 25: STATE_CPU_CPU (sd, 0)->h_bsm = *reg; break;
272 case 26: STATE_CPU_CPU (sd, 0)->h_ie = *reg; break;
273 case 27: STATE_CPU_CPU (sd, 0)->h_bie = *reg; break;
274 case 28: STATE_CPU_CPU (sd, 0)->h_bcarry = *reg; break; /* rename: bc */
275 case 29: memcpy (&STATE_CPU_CPU (sd, 0)->h_bpc, buf, sizeof(DI)); break; /* duplicate */
281 sim_read (sd, addr, buf, len)
288 return sim_core_read_buffer (sd, NULL, sim_core_read_map,
291 return (*STATE_MEM_READ (sd)) (sd, addr, buf, len);
296 sim_write (sd, addr, buf, len)
303 return sim_core_write_buffer (sd, NULL, sim_core_write_map,
306 return (*STATE_MEM_WRITE (sd)) (sd, addr, buf, len);
311 sim_do_command (sd, cmd)
315 sim_io_error (sd, "sim_do_command - unimplemented");