1 # Simulator main loop for fr30. -*- C -*-
2 # Copyright (C) 1998, 1999 Free Software Foundation, Inc.
3 # Contributed by Cygnus Solutions.
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.
22 # /bin/sh mainloop.in command
28 # extract-{simple,scache,pbb}
29 # {full,fast}-exec-{simple,scache,pbb}
31 # A target need only provide a "full" version of one of simple,scache,pbb.
32 # If the target wants it can also provide a fast version of same.
33 # It can't provide more than this, however for illustration's sake the FR30
34 # port provides examples of all.
36 # ??? After a few more ports are done, revisit.
37 # Will eventually need to machine generate a lot of this.
45 static INLINE const IDESC *
46 extract (SIM_CPU *current_cpu, PCADDR pc, CGEN_INSN_INT insn, ARGBUF *abuf,
49 const IDESC *id = @cpu@_decode (current_cpu, pc, insn, abuf);
50 @cpu@_fill_argbuf (current_cpu, abuf, id, pc, fast_p);
53 int trace_p = PC_IN_TRACE_RANGE_P (current_cpu, pc);
54 int profile_p = PC_IN_PROFILE_RANGE_P (current_cpu, pc);
55 @cpu@_fill_argbuf_tp (current_cpu, abuf, trace_p, profile_p);
61 execute (SIM_CPU *current_cpu, SCACHE *sc, int fast_p)
67 #if ! WITH_SEM_SWITCH_FAST
69 vpc = (*sc->argbuf.semantic.sem_fast) (current_cpu, sc);
71 vpc = (*sc->argbuf.semantic.sem_fast) (current_cpu, &sc->argbuf);
75 #endif /* WITH_SEM_SWITCH_FAST */
79 #if ! WITH_SEM_SWITCH_FULL
80 ARGBUF *abuf = &sc->argbuf;
81 const IDESC *idesc = abuf->idesc;
83 int virtual_p = CGEN_ATTR_VALUE (NULL, idesc->attrs, CGEN_INSN_VIRTUAL);
90 /* FIXME: call x-before */
91 if (ARGBUF_PROFILE_P (abuf))
92 PROFILE_COUNT_INSN (current_cpu, abuf->addr, idesc->num);
93 /* FIXME: Later make cover macros: PROFILE_INSN_{INIT,FINI}. */
94 if (PROFILE_MODEL_P (current_cpu)
95 && ARGBUF_PROFILE_P (abuf))
96 @cpu@_model_insn_before (current_cpu, 1 /*first_p*/);
97 TRACE_INSN_INIT (current_cpu, abuf, 1);
98 TRACE_INSN (current_cpu, idesc->idata,
99 (const struct argbuf *) abuf, abuf->addr);
102 vpc = (*sc->argbuf.semantic.sem_full) (current_cpu, sc);
104 vpc = (*sc->argbuf.semantic.sem_full) (current_cpu, abuf);
108 /* FIXME: call x-after */
109 if (PROFILE_MODEL_P (current_cpu)
110 && ARGBUF_PROFILE_P (abuf))
114 cycles = (*idesc->timing->model_fn) (current_cpu, sc);
115 @cpu@_model_insn_after (current_cpu, 1 /*last_p*/, cycles);
117 TRACE_INSN_FINI (current_cpu, abuf, 1);
121 #endif /* WITH_SEM_SWITCH_FULL */
139 xextract-simple | xextract-scache)
141 # Inputs: current_cpu, vpc, sc, FAST_P
142 # Outputs: sc filled in
146 CGEN_INSN_INT insn = GETIMEMUHI (current_cpu, vpc);
147 extract (current_cpu, vpc, insn, SEM_ARGBUF (sc), FAST_P);
155 # Inputs: current_cpu, pc, sc, max_insns, FAST_P
157 # sc must be left pointing past the last created entry.
158 # pc must be left pointing past the last created entry.
159 # If the pbb is terminated by a cti insn, SET_CTI_VPC(sc) must be called
160 # to record the vpc of the cti insn.
161 # SET_INSN_COUNT(n) must be called to record number of real insns.
168 while (max_insns > 0)
170 UHI insn = GETIMEMUHI (current_cpu, pc);
171 idesc = extract (current_cpu, pc, insn, &sc->argbuf, FAST_P);
176 if (IDESC_CTI_P (idesc))
178 SET_CTI_VPC (sc - 1);
181 /* ??? breakpoints in delay slots */
182 if (CGEN_ATTR_VALUE (NULL, idesc->attrs, CGEN_INSN_DELAY_SLOT))
184 UHI insn = GETIMEMUHI (current_cpu, pc);
185 idesc = extract (current_cpu, pc, insn, &sc->argbuf, FAST_P);
186 if (CGEN_ATTR_VALUE (NULL, idesc->attrs, CGEN_INSN_NOT_IN_DELAY_SLOT))
188 /* malformed program */
189 sim_io_eprintf (CPU_STATE (current_cpu),
190 "malformed program, \`%s' insn in delay slot\n",
191 CGEN_INSN_NAME (idesc->idata));
206 SET_INSN_COUNT (icount);
212 xfull-exec-* | xfast-exec-*)
214 # Inputs: current_cpu, sc, FAST_P
216 # vpc contains the address of the next insn to execute
220 #if (! FAST_P && WITH_SEM_SWITCH_FULL) || (FAST_P && WITH_SEM_SWITCH_FAST)
221 #define DEFINE_SWITCH
222 #include "sem-switch.c"
224 vpc = execute (current_cpu, vpc, FAST_P);
232 echo "Invalid argument to mainloop.in: $1" >&2