1 /* This file is part of the program psim.
3 Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
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 of the License, or
8 (at your option) any later version.
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
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #error "N must be #defined"
28 /* NOTE: see end of file for #undef of these macros */
29 #define unsigned_N XCONCAT2(unsigned_,N)
30 #define T2H_N XCONCAT2(T2H_,N)
31 #define H2T_N XCONCAT2(H2T_,N)
33 #define sim_core_read_aligned_N XCONCAT2(sim_core_read_aligned_,N)
34 #define sim_core_write_aligned_N XCONCAT2(sim_core_write_aligned_,N)
35 #define sim_core_read_unaligned_N XCONCAT2(sim_core_read_unaligned_,N)
36 #define sim_core_write_unaligned_N XCONCAT2(sim_core_write_unaligned_,N)
37 #define sim_core_trace_N XCONCAT2(sim_core_trace_,N)
40 /* TAGS: sim_core_trace_1 sim_core_trace_2 */
41 /* TAGS: sim_core_trace_4 sim_core_trace_8 */
42 /* TAGS: sim_core_trace_16 sim_core_trace_word */
45 sim_core_trace_N (sim_cpu
*cpu
,
54 trace_printf (CPU_STATE (cpu
), cpu
,
55 "sim-n-core.h:%d: %s-%d %s:0x%08lx -> 0x%08lx%08lx%08lx%08lx\n",
57 transfer
, sizeof (unsigned_N
),
58 sim_core_map_to_str (map
),
60 (unsigned long) V4_16 (val
, 0),
61 (unsigned long) V4_16 (val
, 1),
62 (unsigned long) V4_16 (val
, 2),
63 (unsigned long) V4_16 (val
, 3));
66 trace_printf (CPU_STATE (cpu
), cpu
,
67 "sim-n-core.h:%d: %s-%d %s:0x%08lx -> 0x%08lx%08lx\n",
69 transfer
, sizeof (unsigned_N
),
70 sim_core_map_to_str (map
),
72 (unsigned long) V4_8 (val
, 0),
73 (unsigned long) V4_8 (val
, 1));
76 trace_printf (CPU_STATE (cpu
), cpu
,
77 "sim-n-core.h:%d: %s-%d %s:0x%08lx -> 0x%0*lx\n",
79 transfer
, sizeof (unsigned_N
),
80 sim_core_map_to_str (map
),
82 sizeof (unsigned_N
) * 2,
88 /* TAGS: sim_core_read_aligned_1 sim_core_read_aligned_2 */
89 /* TAGS: sim_core_read_aligned_4 sim_core_read_aligned_8 */
90 /* TAGS: sim_core_read_aligned_16 sim_core_read_aligned_word */
92 INLINE_SIM_CORE(unsigned_N
)
93 sim_core_read_aligned_N(sim_cpu
*cpu
,
98 sim_cpu_core
*cpu_core
= CPU_CORE (cpu
);
99 sim_core_common
*core
= &cpu_core
->common
;
101 sim_core_mapping
*mapping
;
103 #if WITH_XOR_ENDIAN != 0
105 addr
= xaddr
^ cpu_core
->xor[(sizeof(unsigned_N
) - 1) % WITH_XOR_ENDIAN
];
109 mapping
= sim_core_find_mapping (core
, map
,
113 1 /*abort*/, cpu
, cia
);
115 if (WITH_CALLBACK_MEMORY
&& mapping
->device
!= NULL
) {
117 if (device_io_read_buffer (mapping
->device
,
121 sizeof (unsigned_N
)) != sizeof (unsigned_N
))
122 device_error (mapping
->device
, "internal error - %s - io_read_buffer should not fail",
123 XSTRING (sim_core_read_aligned_N
));
128 val
= T2H_N (*(unsigned_N
*) sim_core_translate (mapping
, addr
));
129 PROFILE_COUNT_CORE (cpu
, addr
, sizeof (unsigned_N
), map
);
130 if (TRACE_P (cpu
, TRACE_CORE_IDX
))
131 sim_core_trace_N (cpu
, cia
, __LINE__
, "read", map
, addr
, val
);
135 /* TAGS: sim_core_read_unaligned_1 sim_core_read_unaligned_2 */
136 /* TAGS: sim_core_read_unaligned_4 sim_core_read_unaligned_8 */
137 /* TAGS: sim_core_read_unaligned_16 sim_core_read_unaligned_word */
139 INLINE_SIM_CORE(unsigned_N
)
140 sim_core_read_unaligned_N(sim_cpu
*cpu
,
145 int alignment
= sizeof (unsigned_N
) - 1;
146 /* if hardwired to forced alignment just do it */
147 if (WITH_ALIGNMENT
== FORCED_ALIGNMENT
)
148 return sim_core_read_aligned_N (cpu
, cia
, map
, addr
& ~alignment
);
149 else if ((addr
& alignment
) == 0)
150 return sim_core_read_aligned_N (cpu
, cia
, map
, addr
);
152 switch (CURRENT_ALIGNMENT
)
154 case STRICT_ALIGNMENT
:
155 SIM_CORE_SIGNAL (CPU_STATE (cpu
), cpu
, cia
, map
,
156 sizeof (unsigned_N
), addr
,
157 read_transfer
, sim_core_unaligned_signal
);
158 case NONSTRICT_ALIGNMENT
:
161 if (sim_core_xor_read_buffer (CPU_STATE (cpu
), cpu
, map
, &val
, addr
,
163 != sizeof(unsigned_N
))
164 SIM_CORE_SIGNAL (CPU_STATE (cpu
), cpu
, cia
, map
,
165 sizeof (unsigned_N
), addr
,
166 read_transfer
, sim_core_unaligned_signal
);
168 PROFILE_COUNT_CORE (cpu
, addr
, sizeof (unsigned_N
), map
);
171 case FORCED_ALIGNMENT
:
172 return sim_core_read_aligned_N (cpu
, cia
, map
, addr
& ~alignment
);
173 case MIXED_ALIGNMENT
:
174 sim_engine_abort (CPU_STATE (cpu
), cpu
, cia
,
175 "internal error - %s - mixed alignment",
176 XSTRING (sim_core_read_unaligned_N
));
178 sim_engine_abort (CPU_STATE (cpu
), cpu
, cia
,
179 "internal error - %s - bad switch",
180 XSTRING (sim_core_read_unaligned_N
));
184 /* TAGS: sim_core_write_aligned_1 sim_core_write_aligned_2 */
185 /* TAGS: sim_core_write_aligned_4 sim_core_write_aligned_8 */
186 /* TAGS: sim_core_write_aligned_16 sim_core_write_aligned_word */
188 INLINE_SIM_CORE(void)
189 sim_core_write_aligned_N(sim_cpu
*cpu
,
195 sim_cpu_core
*cpu_core
= CPU_CORE (cpu
);
196 sim_core_common
*core
= &cpu_core
->common
;
197 sim_core_mapping
*mapping
;
199 #if WITH_XOR_ENDIAN != 0
201 addr
= xaddr
^ cpu_core
->xor[(sizeof(unsigned_N
) - 1) % WITH_XOR_ENDIAN
];
205 mapping
= sim_core_find_mapping(core
, map
,
209 1 /*abort*/, cpu
, cia
);
211 if (WITH_CALLBACK_MEMORY
&& mapping
->device
!= NULL
) {
212 unsigned_N data
= H2T_N (val
);
213 if (device_io_write_buffer (mapping
->device
,
217 sizeof (unsigned_N
), /* nr_bytes */
219 cia
) != sizeof (unsigned_N
))
220 device_error (mapping
->device
, "internal error - %s - io_write_buffer should not fail",
221 XSTRING (sim_core_write_aligned_N
));
225 *(unsigned_N
*) sim_core_translate (mapping
, addr
) = H2T_N (val
);
226 PROFILE_COUNT_CORE (cpu
, addr
, sizeof (unsigned_N
), map
);
227 if (TRACE_P (cpu
, TRACE_CORE_IDX
))
228 sim_core_trace_N (cpu
, cia
, __LINE__
, "write", map
, addr
, val
);
231 /* TAGS: sim_core_write_unaligned_1 sim_core_write_unaligned_2 */
232 /* TAGS: sim_core_write_unaligned_4 sim_core_write_unaligned_8 */
233 /* TAGS: sim_core_write_unaligned_16 sim_core_write_unaligned_word */
235 INLINE_SIM_CORE(void)
236 sim_core_write_unaligned_N(sim_cpu
*cpu
,
242 int alignment
= sizeof (unsigned_N
) - 1;
243 /* if hardwired to forced alignment just do it */
244 if (WITH_ALIGNMENT
== FORCED_ALIGNMENT
)
245 sim_core_write_aligned_N (cpu
, cia
, map
, addr
& ~alignment
, val
);
246 else if ((addr
& alignment
) == 0)
247 sim_core_write_aligned_N (cpu
, cia
, map
, addr
, val
);
249 switch (CURRENT_ALIGNMENT
)
251 case STRICT_ALIGNMENT
:
252 SIM_CORE_SIGNAL (CPU_STATE (cpu
), cpu
, cia
, map
,
253 sizeof (unsigned_N
), addr
,
254 write_transfer
, sim_core_unaligned_signal
);
256 case NONSTRICT_ALIGNMENT
:
258 unsigned_N val
= H2T_N (val
);
259 if (sim_core_xor_write_buffer (CPU_STATE (cpu
), cpu
, map
, &val
, addr
,
261 != sizeof(unsigned_N
))
262 SIM_CORE_SIGNAL (CPU_STATE (cpu
), cpu
, cia
, map
,
263 sizeof (unsigned_N
), addr
,
264 write_transfer
, sim_core_unaligned_signal
);
265 PROFILE_COUNT_CORE (cpu
, addr
, sizeof (unsigned_N
), map
);
268 case FORCED_ALIGNMENT
:
269 sim_core_write_aligned_N (cpu
, cia
, map
, addr
& ~alignment
, val
);
271 case MIXED_ALIGNMENT
:
272 sim_engine_abort (CPU_STATE (cpu
), cpu
, cia
,
273 "internal error - %s - mixed alignment",
274 XSTRING (sim_core_write_unaligned_N
));
277 sim_engine_abort (CPU_STATE (cpu
), cpu
, cia
,
278 "internal error - %s - bad switch",
279 XSTRING (sim_core_write_unaligned_N
));
285 /* NOTE: see start of file for #define of these macros */
289 #undef sim_core_read_aligned_N
290 #undef sim_core_write_aligned_N
291 #undef sim_core_read_unaligned_N
292 #undef sim_core_write_unaligned_N
293 #undef sim_core_trace_N