Commit | Line | Data |
---|---|---|
c7927a3c | 1 | /* Disassembler code for Renesas RX. |
b3adc24a | 2 | Copyright (C) 2008-2020 Free Software Foundation, Inc. |
c7927a3c NC |
3 | Contributed by Red Hat. |
4 | Written by DJ Delorie. | |
5 | ||
6 | This file is part of the GNU opcodes library. | |
7 | ||
8 | This library is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3, or (at your option) | |
11 | any later version. | |
12 | ||
13 | It is distributed in the hope that it will be useful, but WITHOUT | |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
16 | License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
22 | ||
5eb3690e | 23 | #include "sysdep.h" |
c7927a3c NC |
24 | #include <stdio.h> |
25 | ||
26 | #include "bfd.h" | |
27 | #include "dis-asm.h" | |
28 | #include "opcode/rx.h" | |
12234dfd NC |
29 | #include "libiberty.h" |
30 | #include "opintl.h" | |
c7927a3c | 31 | |
029e9d52 YQ |
32 | #include <setjmp.h> |
33 | ||
c7927a3c NC |
34 | typedef struct |
35 | { | |
36 | bfd_vma pc; | |
37 | disassemble_info * dis; | |
38 | } RX_Data; | |
39 | ||
029e9d52 YQ |
40 | struct private |
41 | { | |
42 | OPCODES_SIGJMP_BUF bailout; | |
43 | }; | |
44 | ||
c7927a3c NC |
45 | static int |
46 | rx_get_byte (void * vdata) | |
47 | { | |
48 | bfd_byte buf[1]; | |
49 | RX_Data *rx_data = (RX_Data *) vdata; | |
029e9d52 | 50 | int status; |
c7927a3c | 51 | |
029e9d52 YQ |
52 | status = rx_data->dis->read_memory_func (rx_data->pc, |
53 | buf, | |
54 | 1, | |
55 | rx_data->dis); | |
56 | if (status != 0) | |
57 | { | |
58 | struct private *priv = (struct private *) rx_data->dis->private_data; | |
59 | ||
60 | rx_data->dis->memory_error_func (status, rx_data->pc, | |
61 | rx_data->dis); | |
62 | OPCODES_SIGLONGJMP (priv->bailout, 1); | |
63 | } | |
c7927a3c NC |
64 | |
65 | rx_data->pc ++; | |
66 | return buf[0]; | |
67 | } | |
68 | ||
f04265ec | 69 | static char const * size_names[RX_MAX_SIZE] = |
c7927a3c | 70 | { |
4ce8c66d | 71 | "", ".b", ".ub", ".b", ".w", ".uw", ".w", ".a", ".l", "", "<error>" |
c7927a3c NC |
72 | }; |
73 | ||
f04265ec | 74 | static char const * opsize_names[RX_MAX_SIZE] = |
c7927a3c | 75 | { |
4ce8c66d | 76 | "", ".b", ".b", ".b", ".w", ".w", ".w", ".a", ".l", ".d", "<error>" |
c7927a3c NC |
77 | }; |
78 | ||
79 | static char const * register_names[] = | |
80 | { | |
12234dfd | 81 | /* General registers. */ |
c7927a3c NC |
82 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
83 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
12234dfd | 84 | /* Control registers. */ |
f04265ec | 85 | "psw", "pc", "usp", "fpsw", NULL, NULL, NULL, NULL, |
a117b0a5 YS |
86 | "bpsw", "bpc", "isp", "fintv", "intb", "extb", NULL, NULL, |
87 | "a0", "a1", NULL, NULL, NULL, NULL, NULL, NULL, | |
f04265ec | 88 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
c7927a3c NC |
89 | }; |
90 | ||
91 | static char const * condition_names[] = | |
92 | { | |
12234dfd | 93 | /* Condition codes. */ |
c7927a3c | 94 | "eq", "ne", "c", "nc", "gtu", "leu", "pz", "n", |
e7286c56 | 95 | "ge", "lt", "gt", "le", "o", "no", "<invalid>", "<invalid>" |
c7927a3c NC |
96 | }; |
97 | ||
98 | static const char * flag_names[] = | |
99 | { | |
100 | "c", "z", "s", "o", "", "", "", "", | |
101 | "", "", "", "", "", "", "", "", | |
102 | "i", "u", "", "", "", "", "", "" | |
103 | "", "", "", "", "", "", "", "", | |
104 | }; | |
105 | ||
4ce8c66d YS |
106 | static const char * double_register_names[] = |
107 | { | |
108 | "dr0", "dr1", "dr2", "dr3", "dr4", "dr5", "dr6", "dr7", | |
109 | "dr8", "dr9", "dr10", "dr11", "dr12", "dr13", "dr14", "dr15", | |
110 | }; | |
111 | ||
112 | static const char * double_register_high_names[] = | |
113 | { | |
114 | "drh0", "drh1", "drh2", "drh3", "drh4", "drh5", "drh6", "drh7", | |
115 | "drh8", "drh9", "drh10", "drh11", "drh12", "drh13", "drh14", "drh15", | |
116 | }; | |
117 | ||
118 | static const char * double_register_low_names[] = | |
119 | { | |
120 | "drl0", "drl1", "drl2", "drl3", "drl4", "drl5", "drl6", "drl7", | |
121 | "drl8", "drl9", "drl10", "drl11", "drl12", "drl13", "drl14", "drl15", | |
122 | }; | |
123 | ||
124 | static const char * double_control_register_names[] = | |
125 | { | |
126 | "dpsw", "dcmr", "decnt", "depc", | |
127 | }; | |
128 | ||
129 | static const char * double_condition_names[] = | |
130 | { | |
131 | "", "un", "eq", "", "lt", "", "le", | |
132 | }; | |
133 | ||
12234dfd NC |
134 | static inline const char * |
135 | get_register_name (unsigned int reg) | |
136 | { | |
137 | if (reg < ARRAY_SIZE (register_names)) | |
138 | return register_names[reg]; | |
de6d8dc2 | 139 | return _("<invalid register number>"); |
12234dfd NC |
140 | } |
141 | ||
142 | static inline const char * | |
143 | get_condition_name (unsigned int cond) | |
144 | { | |
145 | if (cond < ARRAY_SIZE (condition_names)) | |
146 | return condition_names[cond]; | |
de6d8dc2 | 147 | return _("<invalid condition code>"); |
12234dfd NC |
148 | } |
149 | ||
150 | static inline const char * | |
151 | get_flag_name (unsigned int flag) | |
152 | { | |
153 | if (flag < ARRAY_SIZE (flag_names)) | |
154 | return flag_names[flag]; | |
de6d8dc2 | 155 | return _("<invalid flag>"); |
12234dfd NC |
156 | } |
157 | ||
158 | static inline const char * | |
159 | get_double_register_name (unsigned int reg) | |
160 | { | |
161 | if (reg < ARRAY_SIZE (double_register_names)) | |
162 | return double_register_names[reg]; | |
de6d8dc2 | 163 | return _("<invalid register number>"); |
12234dfd NC |
164 | } |
165 | ||
166 | static inline const char * | |
167 | get_double_register_high_name (unsigned int reg) | |
168 | { | |
169 | if (reg < ARRAY_SIZE (double_register_high_names)) | |
170 | return double_register_high_names[reg]; | |
de6d8dc2 | 171 | return _("<invalid register number>"); |
12234dfd NC |
172 | } |
173 | ||
174 | static inline const char * | |
175 | get_double_register_low_name (unsigned int reg) | |
176 | { | |
177 | if (reg < ARRAY_SIZE (double_register_low_names)) | |
178 | return double_register_low_names[reg]; | |
de6d8dc2 | 179 | return _("<invalid register number>"); |
12234dfd NC |
180 | } |
181 | ||
182 | static inline const char * | |
183 | get_double_control_register_name (unsigned int reg) | |
184 | { | |
185 | if (reg < ARRAY_SIZE (double_control_register_names)) | |
186 | return double_control_register_names[reg]; | |
de6d8dc2 | 187 | return _("<invalid register number>"); |
12234dfd NC |
188 | } |
189 | ||
190 | static inline const char * | |
191 | get_double_condition_name (unsigned int cond) | |
192 | { | |
193 | if (cond < ARRAY_SIZE (double_condition_names)) | |
194 | return double_condition_names[cond]; | |
de6d8dc2 | 195 | return _("<invalid condition code>"); |
12234dfd NC |
196 | } |
197 | ||
6207ed28 NC |
198 | static inline const char * |
199 | get_opsize_name (unsigned int opsize) | |
200 | { | |
201 | if (opsize < ARRAY_SIZE (opsize_names)) | |
202 | return opsize_names[opsize]; | |
de6d8dc2 | 203 | return _("<invalid opsize>"); |
6207ed28 NC |
204 | } |
205 | ||
206 | static inline const char * | |
207 | get_size_name (unsigned int size) | |
208 | { | |
209 | if (size < ARRAY_SIZE (size_names)) | |
210 | return size_names[size]; | |
de6d8dc2 | 211 | return _("<invalid size>"); |
6207ed28 NC |
212 | } |
213 | ||
12234dfd | 214 | |
c7927a3c NC |
215 | int |
216 | print_insn_rx (bfd_vma addr, disassemble_info * dis) | |
217 | { | |
218 | int rv; | |
219 | RX_Data rx_data; | |
220 | RX_Opcode_Decoded opcode; | |
221 | const char * s; | |
029e9d52 | 222 | struct private priv; |
c7927a3c | 223 | |
029e9d52 | 224 | dis->private_data = (PTR) &priv; |
c7927a3c NC |
225 | rx_data.pc = addr; |
226 | rx_data.dis = dis; | |
227 | ||
029e9d52 YQ |
228 | if (OPCODES_SIGSETJMP (priv.bailout) != 0) |
229 | { | |
230 | /* Error return. */ | |
231 | return -1; | |
232 | } | |
233 | ||
c7927a3c NC |
234 | rv = rx_decode_opcode (addr, &opcode, rx_get_byte, &rx_data); |
235 | ||
236 | dis->bytes_per_line = 10; | |
237 | ||
238 | #define PR (dis->fprintf_func) | |
239 | #define PS (dis->stream) | |
240 | #define PC(c) PR (PS, "%c", c) | |
241 | ||
f04265ec NC |
242 | /* Detect illegal instructions. */ |
243 | if (opcode.op[0].size == RX_Bad_Size | |
244 | || register_names [opcode.op[0].reg] == NULL | |
245 | || register_names [opcode.op[1].reg] == NULL | |
246 | || register_names [opcode.op[2].reg] == NULL) | |
247 | { | |
248 | bfd_byte buf[10]; | |
249 | int i; | |
250 | ||
251 | PR (PS, ".byte "); | |
252 | rx_data.dis->read_memory_func (rx_data.pc - rv, buf, rv, rx_data.dis); | |
253 | ||
254 | for (i = 0 ; i < rv; i++) | |
255 | PR (PS, "0x%02x ", buf[i]); | |
256 | return rv; | |
257 | } | |
258 | ||
c7927a3c NC |
259 | for (s = opcode.syntax; *s; s++) |
260 | { | |
261 | if (*s != '%') | |
262 | { | |
263 | PC (*s); | |
264 | } | |
265 | else | |
266 | { | |
267 | RX_Opcode_Operand * oper; | |
268 | int do_size = 0; | |
269 | int do_hex = 0; | |
270 | int do_addr = 0; | |
271 | ||
272 | s ++; | |
273 | ||
274 | if (*s == 'S') | |
275 | { | |
276 | do_size = 1; | |
277 | s++; | |
278 | } | |
279 | if (*s == 'x') | |
280 | { | |
281 | do_hex = 1; | |
282 | s++; | |
283 | } | |
284 | if (*s == 'a') | |
285 | { | |
286 | do_addr = 1; | |
287 | s++; | |
288 | } | |
289 | ||
290 | switch (*s) | |
291 | { | |
292 | case '%': | |
293 | PC ('%'); | |
294 | break; | |
295 | ||
296 | case 's': | |
6207ed28 | 297 | PR (PS, "%s", get_opsize_name (opcode.size)); |
c7927a3c NC |
298 | break; |
299 | ||
4ce8c66d YS |
300 | case 'b': |
301 | s ++; | |
6207ed28 NC |
302 | if (*s == 'f') |
303 | { | |
304 | int imm = opcode.op[2].addend; | |
305 | int slsb, dlsb, width; | |
306 | ||
307 | dlsb = (imm >> 5) & 0x1f; | |
308 | slsb = (imm & 0x1f); | |
309 | slsb = (slsb >= 0x10?(slsb ^ 0x1f) + 1:slsb); | |
310 | slsb = dlsb - slsb; | |
311 | slsb = (slsb < 0?-slsb:slsb); | |
312 | width = ((imm >> 10) & 0x1f) - dlsb; | |
313 | PR (PS, "#%d, #%d, #%d, %s, %s", | |
314 | slsb, dlsb, width, | |
315 | get_register_name (opcode.op[1].reg), | |
316 | get_register_name (opcode.op[0].reg)); | |
317 | } | |
4ce8c66d | 318 | break; |
c7927a3c NC |
319 | case '0': |
320 | case '1': | |
321 | case '2': | |
27cee81d | 322 | oper = opcode.op + (*s - '0'); |
c7927a3c NC |
323 | if (do_size) |
324 | { | |
e292aa7a | 325 | if (oper->type == RX_Operand_Indirect || oper->type == RX_Operand_Zero_Indirect) |
6207ed28 | 326 | PR (PS, "%s", get_size_name (oper->size)); |
c7927a3c NC |
327 | } |
328 | else | |
329 | switch (oper->type) | |
330 | { | |
331 | case RX_Operand_Immediate: | |
332 | if (do_addr) | |
333 | dis->print_address_func (oper->addend, dis); | |
334 | else if (do_hex | |
335 | || oper->addend > 999 | |
336 | || oper->addend < -999) | |
337 | PR (PS, "%#x", oper->addend); | |
338 | else | |
339 | PR (PS, "%d", oper->addend); | |
340 | break; | |
341 | case RX_Operand_Register: | |
90d6ff62 | 342 | case RX_Operand_TwoReg: |
12234dfd | 343 | PR (PS, "%s", get_register_name (oper->reg)); |
c7927a3c NC |
344 | break; |
345 | case RX_Operand_Indirect: | |
12234dfd | 346 | PR (PS, "%d[%s]", oper->addend, get_register_name (oper->reg)); |
e292aa7a NC |
347 | break; |
348 | case RX_Operand_Zero_Indirect: | |
12234dfd | 349 | PR (PS, "[%s]", get_register_name (oper->reg)); |
c7927a3c NC |
350 | break; |
351 | case RX_Operand_Postinc: | |
12234dfd | 352 | PR (PS, "[%s+]", get_register_name (oper->reg)); |
c7927a3c NC |
353 | break; |
354 | case RX_Operand_Predec: | |
12234dfd | 355 | PR (PS, "[-%s]", get_register_name (oper->reg)); |
c7927a3c NC |
356 | break; |
357 | case RX_Operand_Condition: | |
12234dfd | 358 | PR (PS, "%s", get_condition_name (oper->reg)); |
c7927a3c NC |
359 | break; |
360 | case RX_Operand_Flag: | |
12234dfd | 361 | PR (PS, "%s", get_flag_name (oper->reg)); |
c7927a3c | 362 | break; |
4ce8c66d | 363 | case RX_Operand_DoubleReg: |
12234dfd | 364 | PR (PS, "%s", get_double_register_name (oper->reg)); |
4ce8c66d YS |
365 | break; |
366 | case RX_Operand_DoubleRegH: | |
12234dfd | 367 | PR (PS, "%s", get_double_register_high_name (oper->reg)); |
4ce8c66d YS |
368 | break; |
369 | case RX_Operand_DoubleRegL: | |
12234dfd | 370 | PR (PS, "%s", get_double_register_low_name (oper->reg)); |
4ce8c66d YS |
371 | break; |
372 | case RX_Operand_DoubleCReg: | |
12234dfd | 373 | PR (PS, "%s", get_double_control_register_name (oper->reg)); |
4ce8c66d YS |
374 | break; |
375 | case RX_Operand_DoubleCond: | |
12234dfd | 376 | PR (PS, "%s", get_double_condition_name (oper->reg)); |
4ce8c66d | 377 | break; |
c7927a3c NC |
378 | default: |
379 | PR (PS, "[???]"); | |
380 | break; | |
381 | } | |
382 | } | |
383 | } | |
384 | } | |
385 | ||
386 | return rv; | |
387 | } |