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[qemu.git] / target-xtensa / translate.c
blob6e5096c4264cd3bf648d2baff87edef980856374
1 /*
2 * Xtensa ISA:
3 * http://www.tensilica.com/products/literature-docs/documentation/xtensa-isa-databook.htm
4 *
5 * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * * Neither the name of the Open Source and Linux Lab nor the
16 * names of its contributors may be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <stdio.h>
32
33 #include "cpu.h"
34 #include "exec/exec-all.h"
35 #include "disas/disas.h"
36 #include "tcg-op.h"
37 #include "qemu/log.h"
38 #include "sysemu/sysemu.h"
39 #include "exec/cpu_ldst.h"
40
41 #include "exec/helper-proto.h"
42 #include "exec/helper-gen.h"
43
44 #include "trace-tcg.h"
45
46
47 typedef struct DisasContext {
48 const XtensaConfig *config;
49 TranslationBlock *tb;
50 uint32_t pc;
51 uint32_t next_pc;
52 int cring;
53 int ring;
54 uint32_t lbeg;
55 uint32_t lend;
56 TCGv_i32 litbase;
57 int is_jmp;
58 int singlestep_enabled;
59
60 bool sar_5bit;
61 bool sar_m32_5bit;
62 bool sar_m32_allocated;
63 TCGv_i32 sar_m32;
64
65 uint32_t ccount_delta;
66 unsigned window;
67
68 bool debug;
69 bool icount;
70 TCGv_i32 next_icount;
71
72 unsigned cpenable;
73 } DisasContext;
74
75 static TCGv_ptr cpu_env;
76 static TCGv_i32 cpu_pc;
77 static TCGv_i32 cpu_R[16];
78 static TCGv_i32 cpu_FR[16];
79 static TCGv_i32 cpu_SR[256];
80 static TCGv_i32 cpu_UR[256];
81
82 #include "exec/gen-icount.h"
83
84 typedef struct XtensaReg {
85 const char *name;
86 uint64_t opt_bits;
87 enum {
88 SR_R = 1,
89 SR_W = 2,
90 SR_X = 4,
91 SR_RW = 3,
92 SR_RWX = 7,
93 } access;
94 } XtensaReg;
95
96 #define XTENSA_REG_ACCESS(regname, opt, acc) { \
97 .name = (regname), \
98 .opt_bits = XTENSA_OPTION_BIT(opt), \
99 .access = (acc), \
100 }
101
102 #define XTENSA_REG(regname, opt) XTENSA_REG_ACCESS(regname, opt, SR_RWX)
103
104 #define XTENSA_REG_BITS_ACCESS(regname, opt, acc) { \
105 .name = (regname), \
106 .opt_bits = (opt), \
107 .access = (acc), \
108 }
109
110 #define XTENSA_REG_BITS(regname, opt) \
111 XTENSA_REG_BITS_ACCESS(regname, opt, SR_RWX)
112
113 static const XtensaReg sregnames[256] = {
114 [LBEG] = XTENSA_REG("LBEG", XTENSA_OPTION_LOOP),
115 [LEND] = XTENSA_REG("LEND", XTENSA_OPTION_LOOP),
116 [LCOUNT] = XTENSA_REG("LCOUNT", XTENSA_OPTION_LOOP),
117 [SAR] = XTENSA_REG_BITS("SAR", XTENSA_OPTION_ALL),
118 [BR] = XTENSA_REG("BR", XTENSA_OPTION_BOOLEAN),
119 [LITBASE] = XTENSA_REG("LITBASE", XTENSA_OPTION_EXTENDED_L32R),
120 [SCOMPARE1] = XTENSA_REG("SCOMPARE1", XTENSA_OPTION_CONDITIONAL_STORE),
121 [ACCLO] = XTENSA_REG("ACCLO", XTENSA_OPTION_MAC16),
122 [ACCHI] = XTENSA_REG("ACCHI", XTENSA_OPTION_MAC16),
123 [MR] = XTENSA_REG("MR0", XTENSA_OPTION_MAC16),
124 [MR + 1] = XTENSA_REG("MR1", XTENSA_OPTION_MAC16),
125 [MR + 2] = XTENSA_REG("MR2", XTENSA_OPTION_MAC16),
126 [MR + 3] = XTENSA_REG("MR3", XTENSA_OPTION_MAC16),
127 [WINDOW_BASE] = XTENSA_REG("WINDOW_BASE", XTENSA_OPTION_WINDOWED_REGISTER),
128 [WINDOW_START] = XTENSA_REG("WINDOW_START",
129 XTENSA_OPTION_WINDOWED_REGISTER),
130 [PTEVADDR] = XTENSA_REG("PTEVADDR", XTENSA_OPTION_MMU),
131 [RASID] = XTENSA_REG("RASID", XTENSA_OPTION_MMU),
132 [ITLBCFG] = XTENSA_REG("ITLBCFG", XTENSA_OPTION_MMU),
133 [DTLBCFG] = XTENSA_REG("DTLBCFG", XTENSA_OPTION_MMU),
134 [IBREAKENABLE] = XTENSA_REG("IBREAKENABLE", XTENSA_OPTION_DEBUG),
135 [CACHEATTR] = XTENSA_REG("CACHEATTR", XTENSA_OPTION_CACHEATTR),
136 [ATOMCTL] = XTENSA_REG("ATOMCTL", XTENSA_OPTION_ATOMCTL),
137 [IBREAKA] = XTENSA_REG("IBREAKA0", XTENSA_OPTION_DEBUG),
138 [IBREAKA + 1] = XTENSA_REG("IBREAKA1", XTENSA_OPTION_DEBUG),
139 [DBREAKA] = XTENSA_REG("DBREAKA0", XTENSA_OPTION_DEBUG),
140 [DBREAKA + 1] = XTENSA_REG("DBREAKA1", XTENSA_OPTION_DEBUG),
141 [DBREAKC] = XTENSA_REG("DBREAKC0", XTENSA_OPTION_DEBUG),
142 [DBREAKC + 1] = XTENSA_REG("DBREAKC1", XTENSA_OPTION_DEBUG),
143 [CONFIGID0] = XTENSA_REG_BITS_ACCESS("CONFIGID0", XTENSA_OPTION_ALL, SR_R),
144 [EPC1] = XTENSA_REG("EPC1", XTENSA_OPTION_EXCEPTION),
145 [EPC1 + 1] = XTENSA_REG("EPC2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
146 [EPC1 + 2] = XTENSA_REG("EPC3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
147 [EPC1 + 3] = XTENSA_REG("EPC4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
148 [EPC1 + 4] = XTENSA_REG("EPC5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
149 [EPC1 + 5] = XTENSA_REG("EPC6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
150 [EPC1 + 6] = XTENSA_REG("EPC7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
151 [DEPC] = XTENSA_REG("DEPC", XTENSA_OPTION_EXCEPTION),
152 [EPS2] = XTENSA_REG("EPS2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
153 [EPS2 + 1] = XTENSA_REG("EPS3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
154 [EPS2 + 2] = XTENSA_REG("EPS4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
155 [EPS2 + 3] = XTENSA_REG("EPS5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
156 [EPS2 + 4] = XTENSA_REG("EPS6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
157 [EPS2 + 5] = XTENSA_REG("EPS7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
158 [CONFIGID1] = XTENSA_REG_BITS_ACCESS("CONFIGID1", XTENSA_OPTION_ALL, SR_R),
159 [EXCSAVE1] = XTENSA_REG("EXCSAVE1", XTENSA_OPTION_EXCEPTION),
160 [EXCSAVE1 + 1] = XTENSA_REG("EXCSAVE2",
161 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
162 [EXCSAVE1 + 2] = XTENSA_REG("EXCSAVE3",
163 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
164 [EXCSAVE1 + 3] = XTENSA_REG("EXCSAVE4",
165 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
166 [EXCSAVE1 + 4] = XTENSA_REG("EXCSAVE5",
167 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
168 [EXCSAVE1 + 5] = XTENSA_REG("EXCSAVE6",
169 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
170 [EXCSAVE1 + 6] = XTENSA_REG("EXCSAVE7",
171 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
172 [CPENABLE] = XTENSA_REG("CPENABLE", XTENSA_OPTION_COPROCESSOR),
173 [INTSET] = XTENSA_REG_ACCESS("INTSET", XTENSA_OPTION_INTERRUPT, SR_RW),
174 [INTCLEAR] = XTENSA_REG_ACCESS("INTCLEAR", XTENSA_OPTION_INTERRUPT, SR_W),
175 [INTENABLE] = XTENSA_REG("INTENABLE", XTENSA_OPTION_INTERRUPT),
176 [PS] = XTENSA_REG_BITS("PS", XTENSA_OPTION_ALL),
177 [VECBASE] = XTENSA_REG("VECBASE", XTENSA_OPTION_RELOCATABLE_VECTOR),
178 [EXCCAUSE] = XTENSA_REG("EXCCAUSE", XTENSA_OPTION_EXCEPTION),
179 [DEBUGCAUSE] = XTENSA_REG_ACCESS("DEBUGCAUSE", XTENSA_OPTION_DEBUG, SR_R),
180 [CCOUNT] = XTENSA_REG("CCOUNT", XTENSA_OPTION_TIMER_INTERRUPT),
181 [PRID] = XTENSA_REG_ACCESS("PRID", XTENSA_OPTION_PROCESSOR_ID, SR_R),
182 [ICOUNT] = XTENSA_REG("ICOUNT", XTENSA_OPTION_DEBUG),
183 [ICOUNTLEVEL] = XTENSA_REG("ICOUNTLEVEL", XTENSA_OPTION_DEBUG),
184 [EXCVADDR] = XTENSA_REG("EXCVADDR", XTENSA_OPTION_EXCEPTION),
185 [CCOMPARE] = XTENSA_REG("CCOMPARE0", XTENSA_OPTION_TIMER_INTERRUPT),
186 [CCOMPARE + 1] = XTENSA_REG("CCOMPARE1",
187 XTENSA_OPTION_TIMER_INTERRUPT),
188 [CCOMPARE + 2] = XTENSA_REG("CCOMPARE2",
189 XTENSA_OPTION_TIMER_INTERRUPT),
190 [MISC] = XTENSA_REG("MISC0", XTENSA_OPTION_MISC_SR),
191 [MISC + 1] = XTENSA_REG("MISC1", XTENSA_OPTION_MISC_SR),
192 [MISC + 2] = XTENSA_REG("MISC2", XTENSA_OPTION_MISC_SR),
193 [MISC + 3] = XTENSA_REG("MISC3", XTENSA_OPTION_MISC_SR),
194 };
195
196 static const XtensaReg uregnames[256] = {
197 [THREADPTR] = XTENSA_REG("THREADPTR", XTENSA_OPTION_THREAD_POINTER),
198 [FCR] = XTENSA_REG("FCR", XTENSA_OPTION_FP_COPROCESSOR),
199 [FSR] = XTENSA_REG("FSR", XTENSA_OPTION_FP_COPROCESSOR),
200 };
201
202 void xtensa_translate_init(void)
203 {
204 static const char * const regnames[] = {
205 "ar0", "ar1", "ar2", "ar3",
206 "ar4", "ar5", "ar6", "ar7",
207 "ar8", "ar9", "ar10", "ar11",
208 "ar12", "ar13", "ar14", "ar15",
209 };
210 static const char * const fregnames[] = {
211 "f0", "f1", "f2", "f3",
212 "f4", "f5", "f6", "f7",
213 "f8", "f9", "f10", "f11",
214 "f12", "f13", "f14", "f15",
215 };
216 int i;
217
218 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
219 cpu_pc = tcg_global_mem_new_i32(TCG_AREG0,
220 offsetof(CPUXtensaState, pc), "pc");
221
222 for (i = 0; i < 16; i++) {
223 cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0,
224 offsetof(CPUXtensaState, regs[i]),
225 regnames[i]);
226 }
227
228 for (i = 0; i < 16; i++) {
229 cpu_FR[i] = tcg_global_mem_new_i32(TCG_AREG0,
230 offsetof(CPUXtensaState, fregs[i]),
231 fregnames[i]);
232 }
233
234 for (i = 0; i < 256; ++i) {
235 if (sregnames[i].name) {
236 cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0,
237 offsetof(CPUXtensaState, sregs[i]),
238 sregnames[i].name);
239 }
240 }
241
242 for (i = 0; i < 256; ++i) {
243 if (uregnames[i].name) {
244 cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0,
245 offsetof(CPUXtensaState, uregs[i]),
246 uregnames[i].name);
247 }
248 }
249 }
250
251 static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt)
252 {
253 return xtensa_option_bits_enabled(dc->config, opt);
254 }
255
256 static inline bool option_enabled(DisasContext *dc, int opt)
257 {
258 return xtensa_option_enabled(dc->config, opt);
259 }
260
261 static void init_litbase(DisasContext *dc)
262 {
263 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
264 dc->litbase = tcg_temp_local_new_i32();
265 tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000);
266 }
267 }
268
269 static void reset_litbase(DisasContext *dc)
270 {
271 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
272 tcg_temp_free(dc->litbase);
273 }
274 }
275
276 static void init_sar_tracker(DisasContext *dc)
277 {
278 dc->sar_5bit = false;
279 dc->sar_m32_5bit = false;
280 dc->sar_m32_allocated = false;
281 }
282
283 static void reset_sar_tracker(DisasContext *dc)
284 {
285 if (dc->sar_m32_allocated) {
286 tcg_temp_free(dc->sar_m32);
287 }
288 }
289
290 static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa)
291 {
292 tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f);
293 if (dc->sar_m32_5bit) {
294 tcg_gen_discard_i32(dc->sar_m32);
295 }
296 dc->sar_5bit = true;
297 dc->sar_m32_5bit = false;
298 }
299
300 static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa)
301 {
302 TCGv_i32 tmp = tcg_const_i32(32);
303 if (!dc->sar_m32_allocated) {
304 dc->sar_m32 = tcg_temp_local_new_i32();
305 dc->sar_m32_allocated = true;
306 }
307 tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f);
308 tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32);
309 dc->sar_5bit = false;
310 dc->sar_m32_5bit = true;
311 tcg_temp_free(tmp);
312 }
313
314 static void gen_advance_ccount(DisasContext *dc)
315 {
316 if (dc->ccount_delta > 0) {
317 TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta);
318 gen_helper_advance_ccount(cpu_env, tmp);
319 tcg_temp_free(tmp);
320 }
321 dc->ccount_delta = 0;
322 }
323
324 static void gen_exception(DisasContext *dc, int excp)
325 {
326 TCGv_i32 tmp = tcg_const_i32(excp);
327 gen_advance_ccount(dc);
328 gen_helper_exception(cpu_env, tmp);
329 tcg_temp_free(tmp);
330 }
331
332 static void gen_exception_cause(DisasContext *dc, uint32_t cause)
333 {
334 TCGv_i32 tpc = tcg_const_i32(dc->pc);
335 TCGv_i32 tcause = tcg_const_i32(cause);
336 gen_advance_ccount(dc);
337 gen_helper_exception_cause(cpu_env, tpc, tcause);
338 tcg_temp_free(tpc);
339 tcg_temp_free(tcause);
340 if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
341 cause == SYSCALL_CAUSE) {
342 dc->is_jmp = DISAS_UPDATE;
343 }
344 }
345
346 static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause,
347 TCGv_i32 vaddr)
348 {
349 TCGv_i32 tpc = tcg_const_i32(dc->pc);
350 TCGv_i32 tcause = tcg_const_i32(cause);
351 gen_advance_ccount(dc);
352 gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr);
353 tcg_temp_free(tpc);
354 tcg_temp_free(tcause);
355 }
356
357 static void gen_debug_exception(DisasContext *dc, uint32_t cause)
358 {
359 TCGv_i32 tpc = tcg_const_i32(dc->pc);
360 TCGv_i32 tcause = tcg_const_i32(cause);
361 gen_advance_ccount(dc);
362 gen_helper_debug_exception(cpu_env, tpc, tcause);
363 tcg_temp_free(tpc);
364 tcg_temp_free(tcause);
365 if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
366 dc->is_jmp = DISAS_UPDATE;
367 }
368 }
369
370 static bool gen_check_privilege(DisasContext *dc)
371 {
372 if (dc->cring) {
373 gen_exception_cause(dc, PRIVILEGED_CAUSE);
374 dc->is_jmp = DISAS_UPDATE;
375 return false;
376 }
377 return true;
378 }
379
380 static bool gen_check_cpenable(DisasContext *dc, unsigned cp)
381 {
382 if (option_enabled(dc, XTENSA_OPTION_COPROCESSOR) &&
383 !(dc->cpenable & (1 << cp))) {
384 gen_exception_cause(dc, COPROCESSOR0_DISABLED + cp);
385 dc->is_jmp = DISAS_UPDATE;
386 return false;
387 }
388 return true;
389 }
390
391 static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot)
392 {
393 tcg_gen_mov_i32(cpu_pc, dest);
394 gen_advance_ccount(dc);
395 if (dc->icount) {
396 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount);
397 }
398 if (dc->singlestep_enabled) {
399 gen_exception(dc, EXCP_DEBUG);
400 } else {
401 if (slot >= 0) {
402 tcg_gen_goto_tb(slot);
403 tcg_gen_exit_tb((uintptr_t)dc->tb + slot);
404 } else {
405 tcg_gen_exit_tb(0);
406 }
407 }
408 dc->is_jmp = DISAS_UPDATE;
409 }
410
411 static void gen_jump(DisasContext *dc, TCGv dest)
412 {
413 gen_jump_slot(dc, dest, -1);
414 }
415
416 static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot)
417 {
418 TCGv_i32 tmp = tcg_const_i32(dest);
419 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
420 slot = -1;
421 }
422 gen_jump_slot(dc, tmp, slot);
423 tcg_temp_free(tmp);
424 }
425
426 static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest,
427 int slot)
428 {
429 TCGv_i32 tcallinc = tcg_const_i32(callinc);
430
431 tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS],
432 tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN);
433 tcg_temp_free(tcallinc);
434 tcg_gen_movi_i32(cpu_R[callinc << 2],
435 (callinc << 30) | (dc->next_pc & 0x3fffffff));
436 gen_jump_slot(dc, dest, slot);
437 }
438
439 static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest)
440 {
441 gen_callw_slot(dc, callinc, dest, -1);
442 }
443
444 static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot)
445 {
446 TCGv_i32 tmp = tcg_const_i32(dest);
447 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
448 slot = -1;
449 }
450 gen_callw_slot(dc, callinc, tmp, slot);
451 tcg_temp_free(tmp);
452 }
453
454 static bool gen_check_loop_end(DisasContext *dc, int slot)
455 {
456 if (option_enabled(dc, XTENSA_OPTION_LOOP) &&
457 !(dc->tb->flags & XTENSA_TBFLAG_EXCM) &&
458 dc->next_pc == dc->lend) {
459 TCGLabel *label = gen_new_label();
460
461 gen_advance_ccount(dc);
462 tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
463 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
464 gen_jumpi(dc, dc->lbeg, slot);
465 gen_set_label(label);
466 gen_jumpi(dc, dc->next_pc, -1);
467 return true;
468 }
469 return false;
470 }
471
472 static void gen_jumpi_check_loop_end(DisasContext *dc, int slot)
473 {
474 if (!gen_check_loop_end(dc, slot)) {
475 gen_jumpi(dc, dc->next_pc, slot);
476 }
477 }
478
479 static void gen_brcond(DisasContext *dc, TCGCond cond,
480 TCGv_i32 t0, TCGv_i32 t1, uint32_t offset)
481 {
482 TCGLabel *label = gen_new_label();
483
484 gen_advance_ccount(dc);
485 tcg_gen_brcond_i32(cond, t0, t1, label);
486 gen_jumpi_check_loop_end(dc, 0);
487 gen_set_label(label);
488 gen_jumpi(dc, dc->pc + offset, 1);
489 }
490
491 static void gen_brcondi(DisasContext *dc, TCGCond cond,
492 TCGv_i32 t0, uint32_t t1, uint32_t offset)
493 {
494 TCGv_i32 tmp = tcg_const_i32(t1);
495 gen_brcond(dc, cond, t0, tmp, offset);
496 tcg_temp_free(tmp);
497 }
498
499 static bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access)
500 {
501 if (!xtensa_option_bits_enabled(dc->config, sregnames[sr].opt_bits)) {
502 if (sregnames[sr].name) {
503 qemu_log("SR %s is not configured\n", sregnames[sr].name);
504 } else {
505 qemu_log("SR %d is not implemented\n", sr);
506 }
507 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
508 return false;
509 } else if (!(sregnames[sr].access & access)) {
510 static const char * const access_text[] = {
511 [SR_R] = "rsr",
512 [SR_W] = "wsr",
513 [SR_X] = "xsr",
514 };
515 assert(access < ARRAY_SIZE(access_text) && access_text[access]);
516 qemu_log("SR %s is not available for %s\n", sregnames[sr].name,
517 access_text[access]);
518 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
519 return false;
520 }
521 return true;
522 }
523
524 static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr)
525 {
526 gen_advance_ccount(dc);
527 tcg_gen_mov_i32(d, cpu_SR[sr]);
528 }
529
530 static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
531 {
532 tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10);
533 tcg_gen_or_i32(d, d, cpu_SR[sr]);
534 tcg_gen_andi_i32(d, d, 0xfffffffc);
535 }
536
537 static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
538 {
539 static void (* const rsr_handler[256])(DisasContext *dc,
540 TCGv_i32 d, uint32_t sr) = {
541 [CCOUNT] = gen_rsr_ccount,
542 [PTEVADDR] = gen_rsr_ptevaddr,
543 };
544
545 if (rsr_handler[sr]) {
546 rsr_handler[sr](dc, d, sr);
547 } else {
548 tcg_gen_mov_i32(d, cpu_SR[sr]);
549 }
550 }
551
552 static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
553 {
554 gen_helper_wsr_lbeg(cpu_env, s);
555 gen_jumpi_check_loop_end(dc, 0);
556 }
557
558 static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
559 {
560 gen_helper_wsr_lend(cpu_env, s);
561 gen_jumpi_check_loop_end(dc, 0);
562 }
563
564 static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s)
565 {
566 tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f);
567 if (dc->sar_m32_5bit) {
568 tcg_gen_discard_i32(dc->sar_m32);
569 }
570 dc->sar_5bit = false;
571 dc->sar_m32_5bit = false;
572 }
573
574 static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s)
575 {
576 tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff);
577 }
578
579 static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s)
580 {
581 tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001);
582 /* This can change tb->flags, so exit tb */
583 gen_jumpi_check_loop_end(dc, -1);
584 }
585
586 static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s)
587 {
588 tcg_gen_ext8s_i32(cpu_SR[sr], s);
589 }
590
591 static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
592 {
593 gen_helper_wsr_windowbase(cpu_env, v);
594 /* This can change tb->flags, so exit tb */
595 gen_jumpi_check_loop_end(dc, -1);
596 }
597
598 static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
599 {
600 tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1);
601 /* This can change tb->flags, so exit tb */
602 gen_jumpi_check_loop_end(dc, -1);
603 }
604
605 static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v)
606 {
607 tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000);
608 }
609
610 static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
611 {
612 gen_helper_wsr_rasid(cpu_env, v);
613 /* This can change tb->flags, so exit tb */
614 gen_jumpi_check_loop_end(dc, -1);
615 }
616
617 static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v)
618 {
619 tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000);
620 }
621
622 static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
623 {
624 gen_helper_wsr_ibreakenable(cpu_env, v);
625 gen_jumpi_check_loop_end(dc, 0);
626 }
627
628 static void gen_wsr_atomctl(DisasContext *dc, uint32_t sr, TCGv_i32 v)
629 {
630 tcg_gen_andi_i32(cpu_SR[sr], v, 0x3f);
631 }
632
633 static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
634 {
635 unsigned id = sr - IBREAKA;
636
637 if (id < dc->config->nibreak) {
638 TCGv_i32 tmp = tcg_const_i32(id);
639 gen_helper_wsr_ibreaka(cpu_env, tmp, v);
640 tcg_temp_free(tmp);
641 gen_jumpi_check_loop_end(dc, 0);
642 }
643 }
644
645 static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
646 {
647 unsigned id = sr - DBREAKA;
648
649 if (id < dc->config->ndbreak) {
650 TCGv_i32 tmp = tcg_const_i32(id);
651 gen_helper_wsr_dbreaka(cpu_env, tmp, v);
652 tcg_temp_free(tmp);
653 }
654 }
655
656 static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v)
657 {
658 unsigned id = sr - DBREAKC;
659
660 if (id < dc->config->ndbreak) {
661 TCGv_i32 tmp = tcg_const_i32(id);
662 gen_helper_wsr_dbreakc(cpu_env, tmp, v);
663 tcg_temp_free(tmp);
664 }
665 }
666
667 static void gen_wsr_cpenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
668 {
669 tcg_gen_andi_i32(cpu_SR[sr], v, 0xff);
670 /* This can change tb->flags, so exit tb */
671 gen_jumpi_check_loop_end(dc, -1);
672 }
673
674 static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v)
675 {
676 tcg_gen_andi_i32(cpu_SR[sr], v,
677 dc->config->inttype_mask[INTTYPE_SOFTWARE]);
678 gen_helper_check_interrupts(cpu_env);
679 gen_jumpi_check_loop_end(dc, 0);
680 }
681
682 static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v)
683 {
684 TCGv_i32 tmp = tcg_temp_new_i32();
685
686 tcg_gen_andi_i32(tmp, v,
687 dc->config->inttype_mask[INTTYPE_EDGE] |
688 dc->config->inttype_mask[INTTYPE_NMI] |
689 dc->config->inttype_mask[INTTYPE_SOFTWARE]);
690 tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp);
691 tcg_temp_free(tmp);
692 gen_helper_check_interrupts(cpu_env);
693 }
694
695 static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
696 {
697 tcg_gen_mov_i32(cpu_SR[sr], v);
698 gen_helper_check_interrupts(cpu_env);
699 gen_jumpi_check_loop_end(dc, 0);
700 }
701
702 static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
703 {
704 uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB |
705 PS_UM | PS_EXCM | PS_INTLEVEL;
706
707 if (option_enabled(dc, XTENSA_OPTION_MMU)) {
708 mask |= PS_RING;
709 }
710 tcg_gen_andi_i32(cpu_SR[sr], v, mask);
711 gen_helper_check_interrupts(cpu_env);
712 /* This can change mmu index and tb->flags, so exit tb */
713 gen_jumpi_check_loop_end(dc, -1);
714 }
715
716 static void gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v)
717 {
718 if (dc->icount) {
719 tcg_gen_mov_i32(dc->next_icount, v);
720 } else {
721 tcg_gen_mov_i32(cpu_SR[sr], v);
722 }
723 }
724
725 static void gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v)
726 {
727 tcg_gen_andi_i32(cpu_SR[sr], v, 0xf);
728 /* This can change tb->flags, so exit tb */
729 gen_jumpi_check_loop_end(dc, -1);
730 }
731
732 static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v)
733 {
734 uint32_t id = sr - CCOMPARE;
735 if (id < dc->config->nccompare) {
736 uint32_t int_bit = 1 << dc->config->timerint[id];
737 gen_advance_ccount(dc);
738 tcg_gen_mov_i32(cpu_SR[sr], v);
739 tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit);
740 gen_helper_check_interrupts(cpu_env);
741 }
742 }
743
744 static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s)
745 {
746 static void (* const wsr_handler[256])(DisasContext *dc,
747 uint32_t sr, TCGv_i32 v) = {
748 [LBEG] = gen_wsr_lbeg,
749 [LEND] = gen_wsr_lend,
750 [SAR] = gen_wsr_sar,
751 [BR] = gen_wsr_br,
752 [LITBASE] = gen_wsr_litbase,
753 [ACCHI] = gen_wsr_acchi,
754 [WINDOW_BASE] = gen_wsr_windowbase,
755 [WINDOW_START] = gen_wsr_windowstart,
756 [PTEVADDR] = gen_wsr_ptevaddr,
757 [RASID] = gen_wsr_rasid,
758 [ITLBCFG] = gen_wsr_tlbcfg,
759 [DTLBCFG] = gen_wsr_tlbcfg,
760 [IBREAKENABLE] = gen_wsr_ibreakenable,
761 [ATOMCTL] = gen_wsr_atomctl,
762 [IBREAKA] = gen_wsr_ibreaka,
763 [IBREAKA + 1] = gen_wsr_ibreaka,
764 [DBREAKA] = gen_wsr_dbreaka,
765 [DBREAKA + 1] = gen_wsr_dbreaka,
766 [DBREAKC] = gen_wsr_dbreakc,
767 [DBREAKC + 1] = gen_wsr_dbreakc,
768 [CPENABLE] = gen_wsr_cpenable,
769 [INTSET] = gen_wsr_intset,
770 [INTCLEAR] = gen_wsr_intclear,
771 [INTENABLE] = gen_wsr_intenable,
772 [PS] = gen_wsr_ps,
773 [ICOUNT] = gen_wsr_icount,
774 [ICOUNTLEVEL] = gen_wsr_icountlevel,
775 [CCOMPARE] = gen_wsr_ccompare,
776 [CCOMPARE + 1] = gen_wsr_ccompare,
777 [CCOMPARE + 2] = gen_wsr_ccompare,
778 };
779
780 if (wsr_handler[sr]) {
781 wsr_handler[sr](dc, sr, s);
782 } else {
783 tcg_gen_mov_i32(cpu_SR[sr], s);
784 }
785 }
786
787 static void gen_wur(uint32_t ur, TCGv_i32 s)
788 {
789 switch (ur) {
790 case FCR:
791 gen_helper_wur_fcr(cpu_env, s);
792 break;
793
794 case FSR:
795 tcg_gen_andi_i32(cpu_UR[ur], s, 0xffffff80);
796 break;
797
798 default:
799 tcg_gen_mov_i32(cpu_UR[ur], s);
800 break;
801 }
802 }
803
804 static void gen_load_store_alignment(DisasContext *dc, int shift,
805 TCGv_i32 addr, bool no_hw_alignment)
806 {
807 if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) {
808 tcg_gen_andi_i32(addr, addr, ~0 << shift);
809 } else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) &&
810 no_hw_alignment) {
811 TCGLabel *label = gen_new_label();
812 TCGv_i32 tmp = tcg_temp_new_i32();
813 tcg_gen_andi_i32(tmp, addr, ~(~0 << shift));
814 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
815 gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr);
816 gen_set_label(label);
817 tcg_temp_free(tmp);
818 }
819 }
820
821 static void gen_waiti(DisasContext *dc, uint32_t imm4)
822 {
823 TCGv_i32 pc = tcg_const_i32(dc->next_pc);
824 TCGv_i32 intlevel = tcg_const_i32(imm4);
825 gen_advance_ccount(dc);
826 gen_helper_waiti(cpu_env, pc, intlevel);
827 tcg_temp_free(pc);
828 tcg_temp_free(intlevel);
829 }
830
831 static bool gen_window_check1(DisasContext *dc, unsigned r1)
832 {
833 if (r1 / 4 > dc->window) {
834 TCGv_i32 pc = tcg_const_i32(dc->pc);
835 TCGv_i32 w = tcg_const_i32(r1 / 4);
836
837 gen_advance_ccount(dc);
838 gen_helper_window_check(cpu_env, pc, w);
839 dc->is_jmp = DISAS_UPDATE;
840 return false;
841 }
842 return true;
843 }
844
845 static bool gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2)
846 {
847 return gen_window_check1(dc, r1 > r2 ? r1 : r2);
848 }
849
850 static bool gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2,
851 unsigned r3)
852 {
853 return gen_window_check2(dc, r1, r2 > r3 ? r2 : r3);
854 }
855
856 static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned)
857 {
858 TCGv_i32 m = tcg_temp_new_i32();
859
860 if (hi) {
861 (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16);
862 } else {
863 (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v);
864 }
865 return m;
866 }
867
868 static inline unsigned xtensa_op0_insn_len(unsigned op0)
869 {
870 return op0 >= 8 ? 2 : 3;
871 }
872
873 static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc)
874 {
875 #define HAS_OPTION_BITS(opt) do { \
876 if (!option_bits_enabled(dc, opt)) { \
877 qemu_log("Option is not enabled %s:%d\n", \
878 __FILE__, __LINE__); \
879 goto invalid_opcode; \
880 } \
881 } while (0)
882
883 #define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt))
884
885 #define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__)
886 #define RESERVED() do { \
887 qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \
888 dc->pc, b0, b1, b2, __FILE__, __LINE__); \
889 goto invalid_opcode; \
890 } while (0)
891
892
893 #ifdef TARGET_WORDS_BIGENDIAN
894 #define OP0 (((b0) & 0xf0) >> 4)
895 #define OP1 (((b2) & 0xf0) >> 4)
896 #define OP2 ((b2) & 0xf)
897 #define RRR_R ((b1) & 0xf)
898 #define RRR_S (((b1) & 0xf0) >> 4)
899 #define RRR_T ((b0) & 0xf)
900 #else
901 #define OP0 (((b0) & 0xf))
902 #define OP1 (((b2) & 0xf))
903 #define OP2 (((b2) & 0xf0) >> 4)
904 #define RRR_R (((b1) & 0xf0) >> 4)
905 #define RRR_S (((b1) & 0xf))
906 #define RRR_T (((b0) & 0xf0) >> 4)
907 #endif
908 #define RRR_X ((RRR_R & 0x4) >> 2)
909 #define RRR_Y ((RRR_T & 0x4) >> 2)
910 #define RRR_W (RRR_R & 0x3)
911
912 #define RRRN_R RRR_R
913 #define RRRN_S RRR_S
914 #define RRRN_T RRR_T
915
916 #define RRI4_R RRR_R
917 #define RRI4_S RRR_S
918 #define RRI4_T RRR_T
919 #ifdef TARGET_WORDS_BIGENDIAN
920 #define RRI4_IMM4 ((b2) & 0xf)
921 #else
922 #define RRI4_IMM4 (((b2) & 0xf0) >> 4)
923 #endif
924
925 #define RRI8_R RRR_R
926 #define RRI8_S RRR_S
927 #define RRI8_T RRR_T
928 #define RRI8_IMM8 (b2)
929 #define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8)
930
931 #ifdef TARGET_WORDS_BIGENDIAN
932 #define RI16_IMM16 (((b1) << 8) | (b2))
933 #else
934 #define RI16_IMM16 (((b2) << 8) | (b1))
935 #endif
936
937 #ifdef TARGET_WORDS_BIGENDIAN
938 #define CALL_N (((b0) & 0xc) >> 2)
939 #define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2))
940 #else
941 #define CALL_N (((b0) & 0x30) >> 4)
942 #define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10))
943 #endif
944 #define CALL_OFFSET_SE \
945 (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET)
946
947 #define CALLX_N CALL_N
948 #ifdef TARGET_WORDS_BIGENDIAN
949 #define CALLX_M ((b0) & 0x3)
950 #else
951 #define CALLX_M (((b0) & 0xc0) >> 6)
952 #endif
953 #define CALLX_S RRR_S
954
955 #define BRI12_M CALLX_M
956 #define BRI12_S RRR_S
957 #ifdef TARGET_WORDS_BIGENDIAN
958 #define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2))
959 #else
960 #define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4))
961 #endif
962 #define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12)
963
964 #define BRI8_M BRI12_M
965 #define BRI8_R RRI8_R
966 #define BRI8_S RRI8_S
967 #define BRI8_IMM8 RRI8_IMM8
968 #define BRI8_IMM8_SE RRI8_IMM8_SE
969
970 #define RSR_SR (b1)
971
972 uint8_t b0 = cpu_ldub_code(env, dc->pc);
973 uint8_t b1 = cpu_ldub_code(env, dc->pc + 1);
974 uint8_t b2 = 0;
975 unsigned len = xtensa_op0_insn_len(OP0);
976
977 static const uint32_t B4CONST[] = {
978 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
979 };
980
981 static const uint32_t B4CONSTU[] = {
982 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
983 };
984
985 switch (len) {
986 case 2:
987 HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);
988 break;
989
990 case 3:
991 b2 = cpu_ldub_code(env, dc->pc + 2);
992 break;
993
994 default:
995 RESERVED();
996 }
997 dc->next_pc = dc->pc + len;
998
999 switch (OP0) {
1000 case 0: /*QRST*/
1001 switch (OP1) {
1002 case 0: /*RST0*/
1003 switch (OP2) {
1004 case 0: /*ST0*/
1005 if ((RRR_R & 0xc) == 0x8) {
1006 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1007 }
1008
1009 switch (RRR_R) {
1010 case 0: /*SNM0*/
1011 switch (CALLX_M) {
1012 case 0: /*ILL*/
1013 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1014 break;
1015
1016 case 1: /*reserved*/
1017 RESERVED();
1018 break;
1019
1020 case 2: /*JR*/
1021 switch (CALLX_N) {
1022 case 0: /*RET*/
1023 case 2: /*JX*/
1024 if (gen_window_check1(dc, CALLX_S)) {
1025 gen_jump(dc, cpu_R[CALLX_S]);
1026 }
1027 break;
1028
1029 case 1: /*RETWw*/
1030 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1031 {
1032 TCGv_i32 tmp = tcg_const_i32(dc->pc);
1033 gen_advance_ccount(dc);
1034 gen_helper_retw(tmp, cpu_env, tmp);
1035 gen_jump(dc, tmp);
1036 tcg_temp_free(tmp);
1037 }
1038 break;
1039
1040 case 3: /*reserved*/
1041 RESERVED();
1042 break;
1043 }
1044 break;
1045
1046 case 3: /*CALLX*/
1047 if (!gen_window_check2(dc, CALLX_S, CALLX_N << 2)) {
1048 break;
1049 }
1050 switch (CALLX_N) {
1051 case 0: /*CALLX0*/
1052 {
1053 TCGv_i32 tmp = tcg_temp_new_i32();
1054 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
1055 tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
1056 gen_jump(dc, tmp);
1057 tcg_temp_free(tmp);
1058 }
1059 break;
1060
1061 case 1: /*CALLX4w*/
1062 case 2: /*CALLX8w*/
1063 case 3: /*CALLX12w*/
1064 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1065 {
1066 TCGv_i32 tmp = tcg_temp_new_i32();
1067
1068 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
1069 gen_callw(dc, CALLX_N, tmp);
1070 tcg_temp_free(tmp);
1071 }
1072 break;
1073 }
1074 break;
1075 }
1076 break;
1077
1078 case 1: /*MOVSPw*/
1079 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1080 if (gen_window_check2(dc, RRR_T, RRR_S)) {
1081 TCGv_i32 pc = tcg_const_i32(dc->pc);
1082 gen_advance_ccount(dc);
1083 gen_helper_movsp(cpu_env, pc);
1084 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]);
1085 tcg_temp_free(pc);
1086 }
1087 break;
1088
1089 case 2: /*SYNC*/
1090 switch (RRR_T) {
1091 case 0: /*ISYNC*/
1092 break;
1093
1094 case 1: /*RSYNC*/
1095 break;
1096
1097 case 2: /*ESYNC*/
1098 break;
1099
1100 case 3: /*DSYNC*/
1101 break;
1102
1103 case 8: /*EXCW*/
1104 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1105 break;
1106
1107 case 12: /*MEMW*/
1108 break;
1109
1110 case 13: /*EXTW*/
1111 break;
1112
1113 case 15: /*NOP*/
1114 break;
1115
1116 default: /*reserved*/
1117 RESERVED();
1118 break;
1119 }
1120 break;
1121
1122 case 3: /*RFEIx*/
1123 switch (RRR_T) {
1124 case 0: /*RFETx*/
1125 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1126 switch (RRR_S) {
1127 case 0: /*RFEx*/
1128 if (gen_check_privilege(dc)) {
1129 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
1130 gen_helper_check_interrupts(cpu_env);
1131 gen_jump(dc, cpu_SR[EPC1]);
1132 }
1133 break;
1134
1135 case 1: /*RFUEx*/
1136 RESERVED();
1137 break;
1138
1139 case 2: /*RFDEx*/
1140 if (gen_check_privilege(dc)) {
1141 gen_jump(dc, cpu_SR[
1142 dc->config->ndepc ? DEPC : EPC1]);
1143 }
1144 break;
1145
1146 case 4: /*RFWOw*/
1147 case 5: /*RFWUw*/
1148 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1149 if (gen_check_privilege(dc)) {
1150 TCGv_i32 tmp = tcg_const_i32(1);
1151
1152 tcg_gen_andi_i32(
1153 cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
1154 tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]);
1155
1156 if (RRR_S == 4) {
1157 tcg_gen_andc_i32(cpu_SR[WINDOW_START],
1158 cpu_SR[WINDOW_START], tmp);
1159 } else {
1160 tcg_gen_or_i32(cpu_SR[WINDOW_START],
1161 cpu_SR[WINDOW_START], tmp);
1162 }
1163
1164 gen_helper_restore_owb(cpu_env);
1165 gen_helper_check_interrupts(cpu_env);
1166 gen_jump(dc, cpu_SR[EPC1]);
1167
1168 tcg_temp_free(tmp);
1169 }
1170 break;
1171
1172 default: /*reserved*/
1173 RESERVED();
1174 break;
1175 }
1176 break;
1177
1178 case 1: /*RFIx*/
1179 HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT);
1180 if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) {
1181 if (gen_check_privilege(dc)) {
1182 tcg_gen_mov_i32(cpu_SR[PS],
1183 cpu_SR[EPS2 + RRR_S - 2]);
1184 gen_helper_check_interrupts(cpu_env);
1185 gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]);
1186 }
1187 } else {
1188 qemu_log("RFI %d is illegal\n", RRR_S);
1189 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1190 }
1191 break;
1192
1193 case 2: /*RFME*/
1194 TBD();
1195 break;
1196
1197 default: /*reserved*/
1198 RESERVED();
1199 break;
1200
1201 }
1202 break;
1203
1204 case 4: /*BREAKx*/
1205 HAS_OPTION(XTENSA_OPTION_DEBUG);
1206 if (dc->debug) {
1207 gen_debug_exception(dc, DEBUGCAUSE_BI);
1208 }
1209 break;
1210
1211 case 5: /*SYSCALLx*/
1212 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1213 switch (RRR_S) {
1214 case 0: /*SYSCALLx*/
1215 gen_exception_cause(dc, SYSCALL_CAUSE);
1216 break;
1217
1218 case 1: /*SIMCALL*/
1219 if (semihosting_enabled) {
1220 if (gen_check_privilege(dc)) {
1221 gen_helper_simcall(cpu_env);
1222 }
1223 } else {
1224 qemu_log("SIMCALL but semihosting is disabled\n");
1225 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1226 }
1227 break;
1228
1229 default:
1230 RESERVED();
1231 break;
1232 }
1233 break;
1234
1235 case 6: /*RSILx*/
1236 HAS_OPTION(XTENSA_OPTION_INTERRUPT);
1237 if (gen_check_privilege(dc) &&
1238 gen_window_check1(dc, RRR_T)) {
1239 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]);
1240 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL);
1241 tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S);
1242 gen_helper_check_interrupts(cpu_env);
1243 gen_jumpi_check_loop_end(dc, 0);
1244 }
1245 break;
1246
1247 case 7: /*WAITIx*/
1248 HAS_OPTION(XTENSA_OPTION_INTERRUPT);
1249 if (gen_check_privilege(dc)) {
1250 gen_waiti(dc, RRR_S);
1251 }
1252 break;
1253
1254 case 8: /*ANY4p*/
1255 case 9: /*ALL4p*/
1256 case 10: /*ANY8p*/
1257 case 11: /*ALL8p*/
1258 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1259 {
1260 const unsigned shift = (RRR_R & 2) ? 8 : 4;
1261 TCGv_i32 mask = tcg_const_i32(
1262 ((1 << shift) - 1) << RRR_S);
1263 TCGv_i32 tmp = tcg_temp_new_i32();
1264
1265 tcg_gen_and_i32(tmp, cpu_SR[BR], mask);
1266 if (RRR_R & 1) { /*ALL*/
1267 tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S);
1268 } else { /*ANY*/
1269 tcg_gen_add_i32(tmp, tmp, mask);
1270 }
1271 tcg_gen_shri_i32(tmp, tmp, RRR_S + shift);
1272 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR],
1273 tmp, RRR_T, 1);
1274 tcg_temp_free(mask);
1275 tcg_temp_free(tmp);
1276 }
1277 break;
1278
1279 default: /*reserved*/
1280 RESERVED();
1281 break;
1282
1283 }
1284 break;
1285
1286 case 1: /*AND*/
1287 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1288 tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1289 }
1290 break;
1291
1292 case 2: /*OR*/
1293 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1294 tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1295 }
1296 break;
1297
1298 case 3: /*XOR*/
1299 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1300 tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1301 }
1302 break;
1303
1304 case 4: /*ST1*/
1305 switch (RRR_R) {
1306 case 0: /*SSR*/
1307 if (gen_window_check1(dc, RRR_S)) {
1308 gen_right_shift_sar(dc, cpu_R[RRR_S]);
1309 }
1310 break;
1311
1312 case 1: /*SSL*/
1313 if (gen_window_check1(dc, RRR_S)) {
1314 gen_left_shift_sar(dc, cpu_R[RRR_S]);
1315 }
1316 break;
1317
1318 case 2: /*SSA8L*/
1319 if (gen_window_check1(dc, RRR_S)) {
1320 TCGv_i32 tmp = tcg_temp_new_i32();
1321 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
1322 gen_right_shift_sar(dc, tmp);
1323 tcg_temp_free(tmp);
1324 }
1325 break;
1326
1327 case 3: /*SSA8B*/
1328 if (gen_window_check1(dc, RRR_S)) {
1329 TCGv_i32 tmp = tcg_temp_new_i32();
1330 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
1331 gen_left_shift_sar(dc, tmp);
1332 tcg_temp_free(tmp);
1333 }
1334 break;
1335
1336 case 4: /*SSAI*/
1337 {
1338 TCGv_i32 tmp = tcg_const_i32(
1339 RRR_S | ((RRR_T & 1) << 4));
1340 gen_right_shift_sar(dc, tmp);
1341 tcg_temp_free(tmp);
1342 }
1343 break;
1344
1345 case 6: /*RER*/
1346 TBD();
1347 break;
1348
1349 case 7: /*WER*/
1350 TBD();
1351 break;
1352
1353 case 8: /*ROTWw*/
1354 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1355 if (gen_check_privilege(dc)) {
1356 TCGv_i32 tmp = tcg_const_i32(
1357 RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
1358 gen_helper_rotw(cpu_env, tmp);
1359 tcg_temp_free(tmp);
1360 /* This can change tb->flags, so exit tb */
1361 gen_jumpi_check_loop_end(dc, -1);
1362 }
1363 break;
1364
1365 case 14: /*NSAu*/
1366 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
1367 if (gen_window_check2(dc, RRR_S, RRR_T)) {
1368 gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);
1369 }
1370 break;
1371
1372 case 15: /*NSAUu*/
1373 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
1374 if (gen_window_check2(dc, RRR_S, RRR_T)) {
1375 gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);
1376 }
1377 break;
1378
1379 default: /*reserved*/
1380 RESERVED();
1381 break;
1382 }
1383 break;
1384
1385 case 5: /*TLB*/
1386 HAS_OPTION_BITS(
1387 XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) |
1388 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) |
1389 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION));
1390 if (gen_check_privilege(dc) &&
1391 gen_window_check2(dc, RRR_S, RRR_T)) {
1392 TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0);
1393
1394 switch (RRR_R & 7) {
1395 case 3: /*RITLB0*/ /*RDTLB0*/
1396 gen_helper_rtlb0(cpu_R[RRR_T],
1397 cpu_env, cpu_R[RRR_S], dtlb);
1398 break;
1399
1400 case 4: /*IITLB*/ /*IDTLB*/
1401 gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb);
1402 /* This could change memory mapping, so exit tb */
1403 gen_jumpi_check_loop_end(dc, -1);
1404 break;
1405
1406 case 5: /*PITLB*/ /*PDTLB*/
1407 tcg_gen_movi_i32(cpu_pc, dc->pc);
1408 gen_helper_ptlb(cpu_R[RRR_T],
1409 cpu_env, cpu_R[RRR_S], dtlb);
1410 break;
1411
1412 case 6: /*WITLB*/ /*WDTLB*/
1413 gen_helper_wtlb(
1414 cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
1415 /* This could change memory mapping, so exit tb */
1416 gen_jumpi_check_loop_end(dc, -1);
1417 break;
1418
1419 case 7: /*RITLB1*/ /*RDTLB1*/
1420 gen_helper_rtlb1(cpu_R[RRR_T],
1421 cpu_env, cpu_R[RRR_S], dtlb);
1422 break;
1423
1424 default:
1425 tcg_temp_free(dtlb);
1426 RESERVED();
1427 break;
1428 }
1429 tcg_temp_free(dtlb);
1430 }
1431 break;
1432
1433 case 6: /*RT0*/
1434 if (!gen_window_check2(dc, RRR_R, RRR_T)) {
1435 break;
1436 }
1437 switch (RRR_S) {
1438 case 0: /*NEG*/
1439 tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);
1440 break;
1441
1442 case 1: /*ABS*/
1443 {
1444 TCGv_i32 zero = tcg_const_i32(0);
1445 TCGv_i32 neg = tcg_temp_new_i32();
1446
1447 tcg_gen_neg_i32(neg, cpu_R[RRR_T]);
1448 tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R],
1449 cpu_R[RRR_T], zero, cpu_R[RRR_T], neg);
1450 tcg_temp_free(neg);
1451 tcg_temp_free(zero);
1452 }
1453 break;
1454
1455 default: /*reserved*/
1456 RESERVED();
1457 break;
1458 }
1459 break;
1460
1461 case 7: /*reserved*/
1462 RESERVED();
1463 break;
1464
1465 case 8: /*ADD*/
1466 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1467 tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1468 }
1469 break;
1470
1471 case 9: /*ADD**/
1472 case 10:
1473 case 11:
1474 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1475 TCGv_i32 tmp = tcg_temp_new_i32();
1476 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8);
1477 tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);
1478 tcg_temp_free(tmp);
1479 }
1480 break;
1481
1482 case 12: /*SUB*/
1483 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1484 tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1485 }
1486 break;
1487
1488 case 13: /*SUB**/
1489 case 14:
1490 case 15:
1491 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1492 TCGv_i32 tmp = tcg_temp_new_i32();
1493 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12);
1494 tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);
1495 tcg_temp_free(tmp);
1496 }
1497 break;
1498 }
1499 break;
1500
1501 case 1: /*RST1*/
1502 switch (OP2) {
1503 case 0: /*SLLI*/
1504 case 1:
1505 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1506 tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],
1507 32 - (RRR_T | ((OP2 & 1) << 4)));
1508 }
1509 break;
1510
1511 case 2: /*SRAI*/
1512 case 3:
1513 if (gen_window_check2(dc, RRR_R, RRR_T)) {
1514 tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],
1515 RRR_S | ((OP2 & 1) << 4));
1516 }
1517 break;
1518
1519 case 4: /*SRLI*/
1520 if (gen_window_check2(dc, RRR_R, RRR_T)) {
1521 tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);
1522 }
1523 break;
1524
1525 case 6: /*XSR*/
1526 if (gen_check_sr(dc, RSR_SR, SR_X) &&
1527 (RSR_SR < 64 || gen_check_privilege(dc)) &&
1528 gen_window_check1(dc, RRR_T)) {
1529 TCGv_i32 tmp = tcg_temp_new_i32();
1530
1531 tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
1532 gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
1533 gen_wsr(dc, RSR_SR, tmp);
1534 tcg_temp_free(tmp);
1535 }
1536 break;
1537
1538 /*
1539 * Note: 64 bit ops are used here solely because SAR values
1540 * have range 0..63
1541 */
1542 #define gen_shift_reg(cmd, reg) do { \
1543 TCGv_i64 tmp = tcg_temp_new_i64(); \
1544 tcg_gen_extu_i32_i64(tmp, reg); \
1545 tcg_gen_##cmd##_i64(v, v, tmp); \
1546 tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \
1547 tcg_temp_free_i64(v); \
1548 tcg_temp_free_i64(tmp); \
1549 } while (0)
1550
1551 #define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
1552
1553 case 8: /*SRC*/
1554 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1555 TCGv_i64 v = tcg_temp_new_i64();
1556 tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);
1557 gen_shift(shr);
1558 }
1559 break;
1560
1561 case 9: /*SRL*/
1562 if (!gen_window_check2(dc, RRR_R, RRR_T)) {
1563 break;
1564 }
1565 if (dc->sar_5bit) {
1566 tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
1567 } else {
1568 TCGv_i64 v = tcg_temp_new_i64();
1569 tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]);
1570 gen_shift(shr);
1571 }
1572 break;
1573
1574 case 10: /*SLL*/
1575 if (!gen_window_check2(dc, RRR_R, RRR_S)) {
1576 break;
1577 }
1578 if (dc->sar_m32_5bit) {
1579 tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);
1580 } else {
1581 TCGv_i64 v = tcg_temp_new_i64();
1582 TCGv_i32 s = tcg_const_i32(32);
1583 tcg_gen_sub_i32(s, s, cpu_SR[SAR]);
1584 tcg_gen_andi_i32(s, s, 0x3f);
1585 tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]);
1586 gen_shift_reg(shl, s);
1587 tcg_temp_free(s);
1588 }
1589 break;
1590
1591 case 11: /*SRA*/
1592 if (!gen_window_check2(dc, RRR_R, RRR_T)) {
1593 break;
1594 }
1595 if (dc->sar_5bit) {
1596 tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
1597 } else {
1598 TCGv_i64 v = tcg_temp_new_i64();
1599 tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]);
1600 gen_shift(sar);
1601 }
1602 break;
1603 #undef gen_shift
1604 #undef gen_shift_reg
1605
1606 case 12: /*MUL16U*/
1607 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
1608 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1609 TCGv_i32 v1 = tcg_temp_new_i32();
1610 TCGv_i32 v2 = tcg_temp_new_i32();
1611 tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]);
1612 tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]);
1613 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
1614 tcg_temp_free(v2);
1615 tcg_temp_free(v1);
1616 }
1617 break;
1618
1619 case 13: /*MUL16S*/
1620 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
1621 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1622 TCGv_i32 v1 = tcg_temp_new_i32();
1623 TCGv_i32 v2 = tcg_temp_new_i32();
1624 tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]);
1625 tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]);
1626 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
1627 tcg_temp_free(v2);
1628 tcg_temp_free(v1);
1629 }
1630 break;
1631
1632 default: /*reserved*/
1633 RESERVED();
1634 break;
1635 }
1636 break;
1637
1638 case 2: /*RST2*/
1639 if (OP2 >= 8 && !gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1640 break;
1641 }
1642
1643 if (OP2 >= 12) {
1644 HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
1645 TCGLabel *label = gen_new_label();
1646 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label);
1647 gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE);
1648 gen_set_label(label);
1649 }
1650
1651 switch (OP2) {
1652 #define BOOLEAN_LOGIC(fn, r, s, t) \
1653 do { \
1654 HAS_OPTION(XTENSA_OPTION_BOOLEAN); \
1655 TCGv_i32 tmp1 = tcg_temp_new_i32(); \
1656 TCGv_i32 tmp2 = tcg_temp_new_i32(); \
1657 \
1658 tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \
1659 tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \
1660 tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \
1661 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \
1662 tcg_temp_free(tmp1); \
1663 tcg_temp_free(tmp2); \
1664 } while (0)
1665
1666 case 0: /*ANDBp*/
1667 BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T);
1668 break;
1669
1670 case 1: /*ANDBCp*/
1671 BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T);
1672 break;
1673
1674 case 2: /*ORBp*/
1675 BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T);
1676 break;
1677
1678 case 3: /*ORBCp*/
1679 BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T);
1680 break;
1681
1682 case 4: /*XORBp*/
1683 BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T);
1684 break;
1685
1686 #undef BOOLEAN_LOGIC
1687
1688 case 8: /*MULLi*/
1689 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
1690 tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1691 break;
1692
1693 case 10: /*MULUHi*/
1694 case 11: /*MULSHi*/
1695 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH);
1696 {
1697 TCGv lo = tcg_temp_new();
1698
1699 if (OP2 == 10) {
1700 tcg_gen_mulu2_i32(lo, cpu_R[RRR_R],
1701 cpu_R[RRR_S], cpu_R[RRR_T]);
1702 } else {
1703 tcg_gen_muls2_i32(lo, cpu_R[RRR_R],
1704 cpu_R[RRR_S], cpu_R[RRR_T]);
1705 }
1706 tcg_temp_free(lo);
1707 }
1708 break;
1709
1710 case 12: /*QUOUi*/
1711 tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1712 break;
1713
1714 case 13: /*QUOSi*/
1715 case 15: /*REMSi*/
1716 {
1717 TCGLabel *label1 = gen_new_label();
1718 TCGLabel *label2 = gen_new_label();
1719
1720 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000,
1721 label1);
1722 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff,
1723 label1);
1724 tcg_gen_movi_i32(cpu_R[RRR_R],
1725 OP2 == 13 ? 0x80000000 : 0);
1726 tcg_gen_br(label2);
1727 gen_set_label(label1);
1728 if (OP2 == 13) {
1729 tcg_gen_div_i32(cpu_R[RRR_R],
1730 cpu_R[RRR_S], cpu_R[RRR_T]);
1731 } else {
1732 tcg_gen_rem_i32(cpu_R[RRR_R],
1733 cpu_R[RRR_S], cpu_R[RRR_T]);
1734 }
1735 gen_set_label(label2);
1736 }
1737 break;
1738
1739 case 14: /*REMUi*/
1740 tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1741 break;
1742
1743 default: /*reserved*/
1744 RESERVED();
1745 break;
1746 }
1747 break;
1748
1749 case 3: /*RST3*/
1750 switch (OP2) {
1751 case 0: /*RSR*/
1752 if (gen_check_sr(dc, RSR_SR, SR_R) &&
1753 (RSR_SR < 64 || gen_check_privilege(dc)) &&
1754 gen_window_check1(dc, RRR_T)) {
1755 gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
1756 }
1757 break;
1758
1759 case 1: /*WSR*/
1760 if (gen_check_sr(dc, RSR_SR, SR_W) &&
1761 (RSR_SR < 64 || gen_check_privilege(dc)) &&
1762 gen_window_check1(dc, RRR_T)) {
1763 gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
1764 }
1765 break;
1766
1767 case 2: /*SEXTu*/
1768 HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT);
1769 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1770 int shift = 24 - RRR_T;
1771
1772 if (shift == 24) {
1773 tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
1774 } else if (shift == 16) {
1775 tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
1776 } else {
1777 TCGv_i32 tmp = tcg_temp_new_i32();
1778 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift);
1779 tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift);
1780 tcg_temp_free(tmp);
1781 }
1782 }
1783 break;
1784
1785 case 3: /*CLAMPSu*/
1786 HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS);
1787 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1788 TCGv_i32 tmp1 = tcg_temp_new_i32();
1789 TCGv_i32 tmp2 = tcg_temp_new_i32();
1790 TCGv_i32 zero = tcg_const_i32(0);
1791
1792 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T);
1793 tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]);
1794 tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7));
1795
1796 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31);
1797 tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T));
1798
1799 tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero,
1800 cpu_R[RRR_S], tmp1);
1801 tcg_temp_free(tmp1);
1802 tcg_temp_free(tmp2);
1803 tcg_temp_free(zero);
1804 }
1805 break;
1806
1807 case 4: /*MINu*/
1808 case 5: /*MAXu*/
1809 case 6: /*MINUu*/
1810 case 7: /*MAXUu*/
1811 HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX);
1812 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1813 static const TCGCond cond[] = {
1814 TCG_COND_LE,
1815 TCG_COND_GE,
1816 TCG_COND_LEU,
1817 TCG_COND_GEU
1818 };
1819 tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R],
1820 cpu_R[RRR_S], cpu_R[RRR_T],
1821 cpu_R[RRR_S], cpu_R[RRR_T]);
1822 }
1823 break;
1824
1825 case 8: /*MOVEQZ*/
1826 case 9: /*MOVNEZ*/
1827 case 10: /*MOVLTZ*/
1828 case 11: /*MOVGEZ*/
1829 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1830 static const TCGCond cond[] = {
1831 TCG_COND_EQ,
1832 TCG_COND_NE,
1833 TCG_COND_LT,
1834 TCG_COND_GE,
1835 };
1836 TCGv_i32 zero = tcg_const_i32(0);
1837
1838 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R],
1839 cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]);
1840 tcg_temp_free(zero);
1841 }
1842 break;
1843
1844 case 12: /*MOVFp*/
1845 case 13: /*MOVTp*/
1846 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1847 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1848 TCGv_i32 zero = tcg_const_i32(0);
1849 TCGv_i32 tmp = tcg_temp_new_i32();
1850
1851 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
1852 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
1853 cpu_R[RRR_R], tmp, zero,
1854 cpu_R[RRR_S], cpu_R[RRR_R]);
1855
1856 tcg_temp_free(tmp);
1857 tcg_temp_free(zero);
1858 }
1859 break;
1860
1861 case 14: /*RUR*/
1862 if (gen_window_check1(dc, RRR_R)) {
1863 int st = (RRR_S << 4) + RRR_T;
1864 if (uregnames[st].name) {
1865 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]);
1866 } else {
1867 qemu_log("RUR %d not implemented, ", st);
1868 TBD();
1869 }
1870 }
1871 break;
1872
1873 case 15: /*WUR*/
1874 if (gen_window_check1(dc, RRR_T)) {
1875 if (uregnames[RSR_SR].name) {
1876 gen_wur(RSR_SR, cpu_R[RRR_T]);
1877 } else {
1878 qemu_log("WUR %d not implemented, ", RSR_SR);
1879 TBD();
1880 }
1881 }
1882 break;
1883
1884 }
1885 break;
1886
1887 case 4: /*EXTUI*/
1888 case 5:
1889 if (gen_window_check2(dc, RRR_R, RRR_T)) {
1890 int shiftimm = RRR_S | ((OP1 & 1) << 4);
1891 int maskimm = (1 << (OP2 + 1)) - 1;
1892
1893 TCGv_i32 tmp = tcg_temp_new_i32();
1894 tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm);
1895 tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm);
1896 tcg_temp_free(tmp);
1897 }
1898 break;
1899
1900 case 6: /*CUST0*/
1901 RESERVED();
1902 break;
1903
1904 case 7: /*CUST1*/
1905 RESERVED();
1906 break;
1907
1908 case 8: /*LSCXp*/
1909 switch (OP2) {
1910 case 0: /*LSXf*/
1911 case 1: /*LSXUf*/
1912 case 4: /*SSXf*/
1913 case 5: /*SSXUf*/
1914 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
1915 if (gen_window_check2(dc, RRR_S, RRR_T) &&
1916 gen_check_cpenable(dc, 0)) {
1917 TCGv_i32 addr = tcg_temp_new_i32();
1918 tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]);
1919 gen_load_store_alignment(dc, 2, addr, false);
1920 if (OP2 & 0x4) {
1921 tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring);
1922 } else {
1923 tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring);
1924 }
1925 if (OP2 & 0x1) {
1926 tcg_gen_mov_i32(cpu_R[RRR_S], addr);
1927 }
1928 tcg_temp_free(addr);
1929 }
1930 break;
1931
1932 default: /*reserved*/
1933 RESERVED();
1934 break;
1935 }
1936 break;
1937
1938 case 9: /*LSC4*/
1939 if (!gen_window_check2(dc, RRR_S, RRR_T)) {
1940 break;
1941 }
1942 switch (OP2) {
1943 case 0: /*L32E*/
1944 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1945 if (gen_check_privilege(dc)) {
1946 TCGv_i32 addr = tcg_temp_new_i32();
1947 tcg_gen_addi_i32(addr, cpu_R[RRR_S],
1948 (0xffffffc0 | (RRR_R << 2)));
1949 tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring);
1950 tcg_temp_free(addr);
1951 }
1952 break;
1953
1954 case 4: /*S32E*/
1955 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1956 if (gen_check_privilege(dc)) {
1957 TCGv_i32 addr = tcg_temp_new_i32();
1958 tcg_gen_addi_i32(addr, cpu_R[RRR_S],
1959 (0xffffffc0 | (RRR_R << 2)));
1960 tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring);
1961 tcg_temp_free(addr);
1962 }
1963 break;
1964
1965 default:
1966 RESERVED();
1967 break;
1968 }
1969 break;
1970
1971 case 10: /*FP0*/
1972 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
1973 switch (OP2) {
1974 case 0: /*ADD.Sf*/
1975 if (gen_check_cpenable(dc, 0)) {
1976 gen_helper_add_s(cpu_FR[RRR_R], cpu_env,
1977 cpu_FR[RRR_S], cpu_FR[RRR_T]);
1978 }
1979 break;
1980
1981 case 1: /*SUB.Sf*/
1982 if (gen_check_cpenable(dc, 0)) {
1983 gen_helper_sub_s(cpu_FR[RRR_R], cpu_env,
1984 cpu_FR[RRR_S], cpu_FR[RRR_T]);
1985 }
1986 break;
1987
1988 case 2: /*MUL.Sf*/
1989 if (gen_check_cpenable(dc, 0)) {
1990 gen_helper_mul_s(cpu_FR[RRR_R], cpu_env,
1991 cpu_FR[RRR_S], cpu_FR[RRR_T]);
1992 }
1993 break;
1994
1995 case 4: /*MADD.Sf*/
1996 if (gen_check_cpenable(dc, 0)) {
1997 gen_helper_madd_s(cpu_FR[RRR_R], cpu_env,
1998 cpu_FR[RRR_R], cpu_FR[RRR_S],
1999 cpu_FR[RRR_T]);
2000 }
2001 break;
2002
2003 case 5: /*MSUB.Sf*/
2004 if (gen_check_cpenable(dc, 0)) {
2005 gen_helper_msub_s(cpu_FR[RRR_R], cpu_env,
2006 cpu_FR[RRR_R], cpu_FR[RRR_S],
2007 cpu_FR[RRR_T]);
2008 }
2009 break;
2010
2011 case 8: /*ROUND.Sf*/
2012 case 9: /*TRUNC.Sf*/
2013 case 10: /*FLOOR.Sf*/
2014 case 11: /*CEIL.Sf*/
2015 case 14: /*UTRUNC.Sf*/
2016 if (gen_window_check1(dc, RRR_R) &&
2017 gen_check_cpenable(dc, 0)) {
2018 static const unsigned rounding_mode_const[] = {
2019 float_round_nearest_even,
2020 float_round_to_zero,
2021 float_round_down,
2022 float_round_up,
2023 [6] = float_round_to_zero,
2024 };
2025 TCGv_i32 rounding_mode = tcg_const_i32(
2026 rounding_mode_const[OP2 & 7]);
2027 TCGv_i32 scale = tcg_const_i32(RRR_T);
2028
2029 if (OP2 == 14) {
2030 gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S],
2031 rounding_mode, scale);
2032 } else {
2033 gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S],
2034 rounding_mode, scale);
2035 }
2036
2037 tcg_temp_free(rounding_mode);
2038 tcg_temp_free(scale);
2039 }
2040 break;
2041
2042 case 12: /*FLOAT.Sf*/
2043 case 13: /*UFLOAT.Sf*/
2044 if (gen_window_check1(dc, RRR_S) &&
2045 gen_check_cpenable(dc, 0)) {
2046 TCGv_i32 scale = tcg_const_i32(-RRR_T);
2047
2048 if (OP2 == 13) {
2049 gen_helper_uitof(cpu_FR[RRR_R], cpu_env,
2050 cpu_R[RRR_S], scale);
2051 } else {
2052 gen_helper_itof(cpu_FR[RRR_R], cpu_env,
2053 cpu_R[RRR_S], scale);
2054 }
2055 tcg_temp_free(scale);
2056 }
2057 break;
2058
2059 case 15: /*FP1OP*/
2060 switch (RRR_T) {
2061 case 0: /*MOV.Sf*/
2062 if (gen_check_cpenable(dc, 0)) {
2063 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2064 }
2065 break;
2066
2067 case 1: /*ABS.Sf*/
2068 if (gen_check_cpenable(dc, 0)) {
2069 gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2070 }
2071 break;
2072
2073 case 4: /*RFRf*/
2074 if (gen_window_check1(dc, RRR_R) &&
2075 gen_check_cpenable(dc, 0)) {
2076 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]);
2077 }
2078 break;
2079
2080 case 5: /*WFRf*/
2081 if (gen_window_check1(dc, RRR_S) &&
2082 gen_check_cpenable(dc, 0)) {
2083 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]);
2084 }
2085 break;
2086
2087 case 6: /*NEG.Sf*/
2088 if (gen_check_cpenable(dc, 0)) {
2089 gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2090 }
2091 break;
2092
2093 default: /*reserved*/
2094 RESERVED();
2095 break;
2096 }
2097 break;
2098
2099 default: /*reserved*/
2100 RESERVED();
2101 break;
2102 }
2103 break;
2104
2105 case 11: /*FP1*/
2106 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
2107
2108 #define gen_compare(rel, br, a, b) \
2109 do { \
2110 if (gen_check_cpenable(dc, 0)) { \
2111 TCGv_i32 bit = tcg_const_i32(1 << br); \
2112 \
2113 gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \
2114 tcg_temp_free(bit); \
2115 } \
2116 } while (0)
2117
2118 switch (OP2) {
2119 case 1: /*UN.Sf*/
2120 gen_compare(un_s, RRR_R, RRR_S, RRR_T);
2121 break;
2122
2123 case 2: /*OEQ.Sf*/
2124 gen_compare(oeq_s, RRR_R, RRR_S, RRR_T);
2125 break;
2126
2127 case 3: /*UEQ.Sf*/
2128 gen_compare(ueq_s, RRR_R, RRR_S, RRR_T);
2129 break;
2130
2131 case 4: /*OLT.Sf*/
2132 gen_compare(olt_s, RRR_R, RRR_S, RRR_T);
2133 break;
2134
2135 case 5: /*ULT.Sf*/
2136 gen_compare(ult_s, RRR_R, RRR_S, RRR_T);
2137 break;
2138
2139 case 6: /*OLE.Sf*/
2140 gen_compare(ole_s, RRR_R, RRR_S, RRR_T);
2141 break;
2142
2143 case 7: /*ULE.Sf*/
2144 gen_compare(ule_s, RRR_R, RRR_S, RRR_T);
2145 break;
2146
2147 #undef gen_compare
2148
2149 case 8: /*MOVEQZ.Sf*/
2150 case 9: /*MOVNEZ.Sf*/
2151 case 10: /*MOVLTZ.Sf*/
2152 case 11: /*MOVGEZ.Sf*/
2153 if (gen_window_check1(dc, RRR_T) &&
2154 gen_check_cpenable(dc, 0)) {
2155 static const TCGCond cond[] = {
2156 TCG_COND_EQ,
2157 TCG_COND_NE,
2158 TCG_COND_LT,
2159 TCG_COND_GE,
2160 };
2161 TCGv_i32 zero = tcg_const_i32(0);
2162
2163 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R],
2164 cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]);
2165 tcg_temp_free(zero);
2166 }
2167 break;
2168
2169 case 12: /*MOVF.Sf*/
2170 case 13: /*MOVT.Sf*/
2171 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
2172 if (gen_check_cpenable(dc, 0)) {
2173 TCGv_i32 zero = tcg_const_i32(0);
2174 TCGv_i32 tmp = tcg_temp_new_i32();
2175
2176 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
2177 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
2178 cpu_FR[RRR_R], tmp, zero,
2179 cpu_FR[RRR_S], cpu_FR[RRR_R]);
2180
2181 tcg_temp_free(tmp);
2182 tcg_temp_free(zero);
2183 }
2184 break;
2185
2186 default: /*reserved*/
2187 RESERVED();
2188 break;
2189 }
2190 break;
2191
2192 default: /*reserved*/
2193 RESERVED();
2194 break;
2195 }
2196 break;
2197
2198 case 1: /*L32R*/
2199 if (gen_window_check1(dc, RRR_T)) {
2200 TCGv_i32 tmp = tcg_const_i32(
2201 ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ?
2202 0 : ((dc->pc + 3) & ~3)) +
2203 (0xfffc0000 | (RI16_IMM16 << 2)));
2204
2205 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
2206 tcg_gen_add_i32(tmp, tmp, dc->litbase);
2207 }
2208 tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring);
2209 tcg_temp_free(tmp);
2210 }
2211 break;
2212
2213 case 2: /*LSAI*/
2214 #define gen_load_store(type, shift) do { \
2215 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \
2216 TCGv_i32 addr = tcg_temp_new_i32(); \
2217 \
2218 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \
2219 if (shift) { \
2220 gen_load_store_alignment(dc, shift, addr, false); \
2221 } \
2222 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
2223 tcg_temp_free(addr); \
2224 } \
2225 } while (0)
2226
2227 switch (RRI8_R) {
2228 case 0: /*L8UI*/
2229 gen_load_store(ld8u, 0);
2230 break;
2231
2232 case 1: /*L16UI*/
2233 gen_load_store(ld16u, 1);
2234 break;
2235
2236 case 2: /*L32I*/
2237 gen_load_store(ld32u, 2);
2238 break;
2239
2240 case 4: /*S8I*/
2241 gen_load_store(st8, 0);
2242 break;
2243
2244 case 5: /*S16I*/
2245 gen_load_store(st16, 1);
2246 break;
2247
2248 case 6: /*S32I*/
2249 gen_load_store(st32, 2);
2250 break;
2251
2252 #define gen_dcache_hit_test(w, shift) do { \
2253 if (gen_window_check1(dc, RRI##w##_S)) { \
2254 TCGv_i32 addr = tcg_temp_new_i32(); \
2255 TCGv_i32 res = tcg_temp_new_i32(); \
2256 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
2257 RRI##w##_IMM##w << shift); \
2258 tcg_gen_qemu_ld8u(res, addr, dc->cring); \
2259 tcg_temp_free(addr); \
2260 tcg_temp_free(res); \
2261 } \
2262 } while (0)
2263
2264 #define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4)
2265 #define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2)
2266
2267 case 7: /*CACHEc*/
2268 if (RRI8_T < 8) {
2269 HAS_OPTION(XTENSA_OPTION_DCACHE);
2270 }
2271
2272 switch (RRI8_T) {
2273 case 0: /*DPFRc*/
2274 gen_window_check1(dc, RRI8_S);
2275 break;
2276
2277 case 1: /*DPFWc*/
2278 gen_window_check1(dc, RRI8_S);
2279 break;
2280
2281 case 2: /*DPFROc*/
2282 gen_window_check1(dc, RRI8_S);
2283 break;
2284
2285 case 3: /*DPFWOc*/
2286 gen_window_check1(dc, RRI8_S);
2287 break;
2288
2289 case 4: /*DHWBc*/
2290 gen_dcache_hit_test8();
2291 break;
2292
2293 case 5: /*DHWBIc*/
2294 gen_dcache_hit_test8();
2295 break;
2296
2297 case 6: /*DHIc*/
2298 if (gen_check_privilege(dc)) {
2299 gen_dcache_hit_test8();
2300 }
2301 break;
2302
2303 case 7: /*DIIc*/
2304 if (gen_check_privilege(dc)) {
2305 gen_window_check1(dc, RRI8_S);
2306 }
2307 break;
2308
2309 case 8: /*DCEc*/
2310 switch (OP1) {
2311 case 0: /*DPFLl*/
2312 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2313 if (gen_check_privilege(dc)) {
2314 gen_dcache_hit_test4();
2315 }
2316 break;
2317
2318 case 2: /*DHUl*/
2319 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2320 if (gen_check_privilege(dc)) {
2321 gen_dcache_hit_test4();
2322 }
2323 break;
2324
2325 case 3: /*DIUl*/
2326 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2327 if (gen_check_privilege(dc)) {
2328 gen_window_check1(dc, RRI4_S);
2329 }
2330 break;
2331
2332 case 4: /*DIWBc*/
2333 HAS_OPTION(XTENSA_OPTION_DCACHE);
2334 if (gen_check_privilege(dc)) {
2335 gen_window_check1(dc, RRI4_S);
2336 }
2337 break;
2338
2339 case 5: /*DIWBIc*/
2340 HAS_OPTION(XTENSA_OPTION_DCACHE);
2341 if (gen_check_privilege(dc)) {
2342 gen_window_check1(dc, RRI4_S);
2343 }
2344 break;
2345
2346 default: /*reserved*/
2347 RESERVED();
2348 break;
2349
2350 }
2351 break;
2352
2353 #undef gen_dcache_hit_test
2354 #undef gen_dcache_hit_test4
2355 #undef gen_dcache_hit_test8
2356
2357 #define gen_icache_hit_test(w, shift) do { \
2358 if (gen_window_check1(dc, RRI##w##_S)) { \
2359 TCGv_i32 addr = tcg_temp_new_i32(); \
2360 tcg_gen_movi_i32(cpu_pc, dc->pc); \
2361 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
2362 RRI##w##_IMM##w << shift); \
2363 gen_helper_itlb_hit_test(cpu_env, addr); \
2364 tcg_temp_free(addr); \
2365 }\
2366 } while (0)
2367
2368 #define gen_icache_hit_test4() gen_icache_hit_test(4, 4)
2369 #define gen_icache_hit_test8() gen_icache_hit_test(8, 2)
2370
2371 case 12: /*IPFc*/
2372 HAS_OPTION(XTENSA_OPTION_ICACHE);
2373 gen_window_check1(dc, RRI8_S);
2374 break;
2375
2376 case 13: /*ICEc*/
2377 switch (OP1) {
2378 case 0: /*IPFLl*/
2379 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2380 if (gen_check_privilege(dc)) {
2381 gen_icache_hit_test4();
2382 }
2383 break;
2384
2385 case 2: /*IHUl*/
2386 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2387 if (gen_check_privilege(dc)) {
2388 gen_icache_hit_test4();
2389 }
2390 break;
2391
2392 case 3: /*IIUl*/
2393 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2394 if (gen_check_privilege(dc)) {
2395 gen_window_check1(dc, RRI4_S);
2396 }
2397 break;
2398
2399 default: /*reserved*/
2400 RESERVED();
2401 break;
2402 }
2403 break;
2404
2405 case 14: /*IHIc*/
2406 HAS_OPTION(XTENSA_OPTION_ICACHE);
2407 gen_icache_hit_test8();
2408 break;
2409
2410 case 15: /*IIIc*/
2411 HAS_OPTION(XTENSA_OPTION_ICACHE);
2412 if (gen_check_privilege(dc)) {
2413 gen_window_check1(dc, RRI8_S);
2414 }
2415 break;
2416
2417 default: /*reserved*/
2418 RESERVED();
2419 break;
2420 }
2421 break;
2422
2423 #undef gen_icache_hit_test
2424 #undef gen_icache_hit_test4
2425 #undef gen_icache_hit_test8
2426
2427 case 9: /*L16SI*/
2428 gen_load_store(ld16s, 1);
2429 break;
2430 #undef gen_load_store
2431
2432 case 10: /*MOVI*/
2433 if (gen_window_check1(dc, RRI8_T)) {
2434 tcg_gen_movi_i32(cpu_R[RRI8_T],
2435 RRI8_IMM8 | (RRI8_S << 8) |
2436 ((RRI8_S & 0x8) ? 0xfffff000 : 0));
2437 }
2438 break;
2439
2440 #define gen_load_store_no_hw_align(type) do { \
2441 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \
2442 TCGv_i32 addr = tcg_temp_local_new_i32(); \
2443 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \
2444 gen_load_store_alignment(dc, 2, addr, true); \
2445 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
2446 tcg_temp_free(addr); \
2447 } \
2448 } while (0)
2449
2450 case 11: /*L32AIy*/
2451 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
2452 gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/
2453 break;
2454
2455 case 12: /*ADDI*/
2456 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2457 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);
2458 }
2459 break;
2460
2461 case 13: /*ADDMI*/
2462 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2463 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S],
2464 RRI8_IMM8_SE << 8);
2465 }
2466 break;
2467
2468 case 14: /*S32C1Iy*/
2469 HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE);
2470 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2471 TCGLabel *label = gen_new_label();
2472 TCGv_i32 tmp = tcg_temp_local_new_i32();
2473 TCGv_i32 addr = tcg_temp_local_new_i32();
2474 TCGv_i32 tpc;
2475
2476 tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]);
2477 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
2478 gen_load_store_alignment(dc, 2, addr, true);
2479
2480 gen_advance_ccount(dc);
2481 tpc = tcg_const_i32(dc->pc);
2482 gen_helper_check_atomctl(cpu_env, tpc, addr);
2483 tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring);
2484 tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T],
2485 cpu_SR[SCOMPARE1], label);
2486
2487 tcg_gen_qemu_st32(tmp, addr, dc->cring);
2488
2489 gen_set_label(label);
2490 tcg_temp_free(tpc);
2491 tcg_temp_free(addr);
2492 tcg_temp_free(tmp);
2493 }
2494 break;
2495
2496 case 15: /*S32RIy*/
2497 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
2498 gen_load_store_no_hw_align(st32); /*TODO release?*/
2499 break;
2500 #undef gen_load_store_no_hw_align
2501
2502 default: /*reserved*/
2503 RESERVED();
2504 break;
2505 }
2506 break;
2507
2508 case 3: /*LSCIp*/
2509 switch (RRI8_R) {
2510 case 0: /*LSIf*/
2511 case 4: /*SSIf*/
2512 case 8: /*LSIUf*/
2513 case 12: /*SSIUf*/
2514 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
2515 if (gen_window_check1(dc, RRI8_S) &&
2516 gen_check_cpenable(dc, 0)) {
2517 TCGv_i32 addr = tcg_temp_new_i32();
2518 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
2519 gen_load_store_alignment(dc, 2, addr, false);
2520 if (RRI8_R & 0x4) {
2521 tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring);
2522 } else {
2523 tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring);
2524 }
2525 if (RRI8_R & 0x8) {
2526 tcg_gen_mov_i32(cpu_R[RRI8_S], addr);
2527 }
2528 tcg_temp_free(addr);
2529 }
2530 break;
2531
2532 default: /*reserved*/
2533 RESERVED();
2534 break;
2535 }
2536 break;
2537
2538 case 4: /*MAC16d*/
2539 HAS_OPTION(XTENSA_OPTION_MAC16);
2540 {
2541 enum {
2542 MAC16_UMUL = 0x0,
2543 MAC16_MUL = 0x4,
2544 MAC16_MULA = 0x8,
2545 MAC16_MULS = 0xc,
2546 MAC16_NONE = 0xf,
2547 } op = OP1 & 0xc;
2548 bool is_m1_sr = (OP2 & 0x3) == 2;
2549 bool is_m2_sr = (OP2 & 0xc) == 0;
2550 uint32_t ld_offset = 0;
2551
2552 if (OP2 > 9) {
2553 RESERVED();
2554 }
2555
2556 switch (OP2 & 2) {
2557 case 0: /*MACI?/MACC?*/
2558 is_m1_sr = true;
2559 ld_offset = (OP2 & 1) ? -4 : 4;
2560
2561 if (OP2 >= 8) { /*MACI/MACC*/
2562 if (OP1 == 0) { /*LDINC/LDDEC*/
2563 op = MAC16_NONE;
2564 } else {
2565 RESERVED();
2566 }
2567 } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/
2568 RESERVED();
2569 }
2570 break;
2571
2572 case 2: /*MACD?/MACA?*/
2573 if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/
2574 RESERVED();
2575 }
2576 break;
2577 }
2578
2579 if (op != MAC16_NONE) {
2580 if (!is_m1_sr && !gen_window_check1(dc, RRR_S)) {
2581 break;
2582 }
2583 if (!is_m2_sr && !gen_window_check1(dc, RRR_T)) {
2584 break;
2585 }
2586 }
2587
2588 if (ld_offset && !gen_window_check1(dc, RRR_S)) {
2589 break;
2590 }
2591
2592 {
2593 TCGv_i32 vaddr = tcg_temp_new_i32();
2594 TCGv_i32 mem32 = tcg_temp_new_i32();
2595
2596 if (ld_offset) {
2597 tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset);
2598 gen_load_store_alignment(dc, 2, vaddr, false);
2599 tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring);
2600 }
2601 if (op != MAC16_NONE) {
2602 TCGv_i32 m1 = gen_mac16_m(
2603 is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S],
2604 OP1 & 1, op == MAC16_UMUL);
2605 TCGv_i32 m2 = gen_mac16_m(
2606 is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T],
2607 OP1 & 2, op == MAC16_UMUL);
2608
2609 if (op == MAC16_MUL || op == MAC16_UMUL) {
2610 tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2);
2611 if (op == MAC16_UMUL) {
2612 tcg_gen_movi_i32(cpu_SR[ACCHI], 0);
2613 } else {
2614 tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31);
2615 }
2616 } else {
2617 TCGv_i32 lo = tcg_temp_new_i32();
2618 TCGv_i32 hi = tcg_temp_new_i32();
2619
2620 tcg_gen_mul_i32(lo, m1, m2);
2621 tcg_gen_sari_i32(hi, lo, 31);
2622 if (op == MAC16_MULA) {
2623 tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
2624 cpu_SR[ACCLO], cpu_SR[ACCHI],
2625 lo, hi);
2626 } else {
2627 tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
2628 cpu_SR[ACCLO], cpu_SR[ACCHI],
2629 lo, hi);
2630 }
2631 tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]);
2632
2633 tcg_temp_free_i32(lo);
2634 tcg_temp_free_i32(hi);
2635 }
2636 tcg_temp_free(m1);
2637 tcg_temp_free(m2);
2638 }
2639 if (ld_offset) {
2640 tcg_gen_mov_i32(cpu_R[RRR_S], vaddr);
2641 tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32);
2642 }
2643 tcg_temp_free(vaddr);
2644 tcg_temp_free(mem32);
2645 }
2646 }
2647 break;
2648
2649 case 5: /*CALLN*/
2650 switch (CALL_N) {
2651 case 0: /*CALL0*/
2652 tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
2653 gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
2654 break;
2655
2656 case 1: /*CALL4w*/
2657 case 2: /*CALL8w*/
2658 case 3: /*CALL12w*/
2659 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2660 if (gen_window_check1(dc, CALL_N << 2)) {
2661 gen_callwi(dc, CALL_N,
2662 (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
2663 }
2664 break;
2665 }
2666 break;
2667
2668 case 6: /*SI*/
2669 switch (CALL_N) {
2670 case 0: /*J*/
2671 gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0);
2672 break;
2673
2674 case 1: /*BZ*/
2675 if (gen_window_check1(dc, BRI12_S)) {
2676 static const TCGCond cond[] = {
2677 TCG_COND_EQ, /*BEQZ*/
2678 TCG_COND_NE, /*BNEZ*/
2679 TCG_COND_LT, /*BLTZ*/
2680 TCG_COND_GE, /*BGEZ*/
2681 };
2682
2683 gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0,
2684 4 + BRI12_IMM12_SE);
2685 }
2686 break;
2687
2688 case 2: /*BI0*/
2689 if (gen_window_check1(dc, BRI8_S)) {
2690 static const TCGCond cond[] = {
2691 TCG_COND_EQ, /*BEQI*/
2692 TCG_COND_NE, /*BNEI*/
2693 TCG_COND_LT, /*BLTI*/
2694 TCG_COND_GE, /*BGEI*/
2695 };
2696
2697 gen_brcondi(dc, cond[BRI8_M & 3],
2698 cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE);
2699 }
2700 break;
2701
2702 case 3: /*BI1*/
2703 switch (BRI8_M) {
2704 case 0: /*ENTRYw*/
2705 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2706 {
2707 TCGv_i32 pc = tcg_const_i32(dc->pc);
2708 TCGv_i32 s = tcg_const_i32(BRI12_S);
2709 TCGv_i32 imm = tcg_const_i32(BRI12_IMM12);
2710 gen_advance_ccount(dc);
2711 gen_helper_entry(cpu_env, pc, s, imm);
2712 tcg_temp_free(imm);
2713 tcg_temp_free(s);
2714 tcg_temp_free(pc);
2715 /* This can change tb->flags, so exit tb */
2716 gen_jumpi_check_loop_end(dc, -1);
2717 }
2718 break;
2719
2720 case 1: /*B1*/
2721 switch (BRI8_R) {
2722 case 0: /*BFp*/
2723 case 1: /*BTp*/
2724 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
2725 {
2726 TCGv_i32 tmp = tcg_temp_new_i32();
2727 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S);
2728 gen_brcondi(dc,
2729 BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ,
2730 tmp, 0, 4 + RRI8_IMM8_SE);
2731 tcg_temp_free(tmp);
2732 }
2733 break;
2734
2735 case 8: /*LOOP*/
2736 case 9: /*LOOPNEZ*/
2737 case 10: /*LOOPGTZ*/
2738 HAS_OPTION(XTENSA_OPTION_LOOP);
2739 if (gen_window_check1(dc, RRI8_S)) {
2740 uint32_t lend = dc->pc + RRI8_IMM8 + 4;
2741 TCGv_i32 tmp = tcg_const_i32(lend);
2742
2743 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
2744 tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc);
2745 gen_helper_wsr_lend(cpu_env, tmp);
2746 tcg_temp_free(tmp);
2747
2748 if (BRI8_R > 8) {
2749 TCGLabel *label = gen_new_label();
2750 tcg_gen_brcondi_i32(
2751 BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT,
2752 cpu_R[RRI8_S], 0, label);
2753 gen_jumpi(dc, lend, 1);
2754 gen_set_label(label);
2755 }
2756
2757 gen_jumpi(dc, dc->next_pc, 0);
2758 }
2759 break;
2760
2761 default: /*reserved*/
2762 RESERVED();
2763 break;
2764
2765 }
2766 break;
2767
2768 case 2: /*BLTUI*/
2769 case 3: /*BGEUI*/
2770 if (gen_window_check1(dc, BRI8_S)) {
2771 gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,
2772 cpu_R[BRI8_S], B4CONSTU[BRI8_R],
2773 4 + BRI8_IMM8_SE);
2774 }
2775 break;
2776 }
2777 break;
2778
2779 }
2780 break;
2781
2782 case 7: /*B*/
2783 {
2784 TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ;
2785
2786 switch (RRI8_R & 7) {
2787 case 0: /*BNONE*/ /*BANY*/
2788 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2789 TCGv_i32 tmp = tcg_temp_new_i32();
2790 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
2791 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2792 tcg_temp_free(tmp);
2793 }
2794 break;
2795
2796 case 1: /*BEQ*/ /*BNE*/
2797 case 2: /*BLT*/ /*BGE*/
2798 case 3: /*BLTU*/ /*BGEU*/
2799 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2800 static const TCGCond cond[] = {
2801 [1] = TCG_COND_EQ,
2802 [2] = TCG_COND_LT,
2803 [3] = TCG_COND_LTU,
2804 [9] = TCG_COND_NE,
2805 [10] = TCG_COND_GE,
2806 [11] = TCG_COND_GEU,
2807 };
2808 gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T],
2809 4 + RRI8_IMM8_SE);
2810 }
2811 break;
2812
2813 case 4: /*BALL*/ /*BNALL*/
2814 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2815 TCGv_i32 tmp = tcg_temp_new_i32();
2816 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
2817 gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T],
2818 4 + RRI8_IMM8_SE);
2819 tcg_temp_free(tmp);
2820 }
2821 break;
2822
2823 case 5: /*BBC*/ /*BBS*/
2824 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2825 #ifdef TARGET_WORDS_BIGENDIAN
2826 TCGv_i32 bit = tcg_const_i32(0x80000000);
2827 #else
2828 TCGv_i32 bit = tcg_const_i32(0x00000001);
2829 #endif
2830 TCGv_i32 tmp = tcg_temp_new_i32();
2831 tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);
2832 #ifdef TARGET_WORDS_BIGENDIAN
2833 tcg_gen_shr_i32(bit, bit, tmp);
2834 #else
2835 tcg_gen_shl_i32(bit, bit, tmp);
2836 #endif
2837 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit);
2838 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2839 tcg_temp_free(tmp);
2840 tcg_temp_free(bit);
2841 }
2842 break;
2843
2844 case 6: /*BBCI*/ /*BBSI*/
2845 case 7:
2846 if (gen_window_check1(dc, RRI8_S)) {
2847 TCGv_i32 tmp = tcg_temp_new_i32();
2848 tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],
2849 #ifdef TARGET_WORDS_BIGENDIAN
2850 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T));
2851 #else
2852 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T));
2853 #endif
2854 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2855 tcg_temp_free(tmp);
2856 }
2857 break;
2858
2859 }
2860 }
2861 break;
2862
2863 #define gen_narrow_load_store(type) do { \
2864 if (gen_window_check2(dc, RRRN_S, RRRN_T)) { \
2865 TCGv_i32 addr = tcg_temp_new_i32(); \
2866 tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
2867 gen_load_store_alignment(dc, 2, addr, false); \
2868 tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \
2869 tcg_temp_free(addr); \
2870 } \
2871 } while (0)
2872
2873 case 8: /*L32I.Nn*/
2874 gen_narrow_load_store(ld32u);
2875 break;
2876
2877 case 9: /*S32I.Nn*/
2878 gen_narrow_load_store(st32);
2879 break;
2880 #undef gen_narrow_load_store
2881
2882 case 10: /*ADD.Nn*/
2883 if (gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T)) {
2884 tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]);
2885 }
2886 break;
2887
2888 case 11: /*ADDI.Nn*/
2889 if (gen_window_check2(dc, RRRN_R, RRRN_S)) {
2890 tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S],
2891 RRRN_T ? RRRN_T : -1);
2892 }
2893 break;
2894
2895 case 12: /*ST2n*/
2896 if (!gen_window_check1(dc, RRRN_S)) {
2897 break;
2898 }
2899 if (RRRN_T < 8) { /*MOVI.Nn*/
2900 tcg_gen_movi_i32(cpu_R[RRRN_S],
2901 RRRN_R | (RRRN_T << 4) |
2902 ((RRRN_T & 6) == 6 ? 0xffffff80 : 0));
2903 } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/
2904 TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ;
2905
2906 gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0,
2907 4 + (RRRN_R | ((RRRN_T & 3) << 4)));
2908 }
2909 break;
2910
2911 case 13: /*ST3n*/
2912 switch (RRRN_R) {
2913 case 0: /*MOV.Nn*/
2914 if (gen_window_check2(dc, RRRN_S, RRRN_T)) {
2915 tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]);
2916 }
2917 break;
2918
2919 case 15: /*S3*/
2920 switch (RRRN_T) {
2921 case 0: /*RET.Nn*/
2922 gen_jump(dc, cpu_R[0]);
2923 break;
2924
2925 case 1: /*RETW.Nn*/
2926 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2927 {
2928 TCGv_i32 tmp = tcg_const_i32(dc->pc);
2929 gen_advance_ccount(dc);
2930 gen_helper_retw(tmp, cpu_env, tmp);
2931 gen_jump(dc, tmp);
2932 tcg_temp_free(tmp);
2933 }
2934 break;
2935
2936 case 2: /*BREAK.Nn*/
2937 HAS_OPTION(XTENSA_OPTION_DEBUG);
2938 if (dc->debug) {
2939 gen_debug_exception(dc, DEBUGCAUSE_BN);
2940 }
2941 break;
2942
2943 case 3: /*NOP.Nn*/
2944 break;
2945
2946 case 6: /*ILL.Nn*/
2947 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
2948 break;
2949
2950 default: /*reserved*/
2951 RESERVED();
2952 break;
2953 }
2954 break;
2955
2956 default: /*reserved*/
2957 RESERVED();
2958 break;
2959 }
2960 break;
2961
2962 default: /*reserved*/
2963 RESERVED();
2964 break;
2965 }
2966
2967 if (dc->is_jmp == DISAS_NEXT) {
2968 gen_check_loop_end(dc, 0);
2969 }
2970 dc->pc = dc->next_pc;
2971
2972 return;
2973
2974 invalid_opcode:
2975 qemu_log("INVALID(pc = %08x)\n", dc->pc);
2976 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
2977 #undef HAS_OPTION
2978 }
2979
2980 static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc)
2981 {
2982 uint8_t b0 = cpu_ldub_code(env, dc->pc);
2983 return xtensa_op0_insn_len(OP0);
2984 }
2985
2986 static void check_breakpoint(CPUXtensaState *env, DisasContext *dc)
2987 {
2988 CPUState *cs = CPU(xtensa_env_get_cpu(env));
2989 CPUBreakpoint *bp;
2990
2991 if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
2992 QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
2993 if (bp->pc == dc->pc) {
2994 tcg_gen_movi_i32(cpu_pc, dc->pc);
2995 gen_exception(dc, EXCP_DEBUG);
2996 dc->is_jmp = DISAS_UPDATE;
2997 }
2998 }
2999 }
3000 }
3001
3002 static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc)
3003 {
3004 unsigned i;
3005
3006 for (i = 0; i < dc->config->nibreak; ++i) {
3007 if ((env->sregs[IBREAKENABLE] & (1 << i)) &&
3008 env->sregs[IBREAKA + i] == dc->pc) {
3009 gen_debug_exception(dc, DEBUGCAUSE_IB);
3010 break;
3011 }
3012 }
3013 }
3014
3015 static inline
3016 void gen_intermediate_code_internal(XtensaCPU *cpu,
3017 TranslationBlock *tb, bool search_pc)
3018 {
3019 CPUState *cs = CPU(cpu);
3020 CPUXtensaState *env = &cpu->env;
3021 DisasContext dc;
3022 int insn_count = 0;
3023 int j, lj = -1;
3024 int max_insns = tb->cflags & CF_COUNT_MASK;
3025 uint32_t pc_start = tb->pc;
3026 uint32_t next_page_start =
3027 (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
3028
3029 if (max_insns == 0) {
3030 max_insns = CF_COUNT_MASK;
3031 }
3032
3033 dc.config = env->config;
3034 dc.singlestep_enabled = cs->singlestep_enabled;
3035 dc.tb = tb;
3036 dc.pc = pc_start;
3037 dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK;
3038 dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring;
3039 dc.lbeg = env->sregs[LBEG];
3040 dc.lend = env->sregs[LEND];
3041 dc.is_jmp = DISAS_NEXT;
3042 dc.ccount_delta = 0;
3043 dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG;
3044 dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT;
3045 dc.cpenable = (tb->flags & XTENSA_TBFLAG_CPENABLE_MASK) >>
3046 XTENSA_TBFLAG_CPENABLE_SHIFT;
3047 dc.window = ((tb->flags & XTENSA_TBFLAG_WINDOW_MASK) >>
3048 XTENSA_TBFLAG_WINDOW_SHIFT);
3049
3050 init_litbase(&dc);
3051 init_sar_tracker(&dc);
3052 if (dc.icount) {
3053 dc.next_icount = tcg_temp_local_new_i32();
3054 }
3055
3056 gen_tb_start(tb);
3057
3058 if (tb->flags & XTENSA_TBFLAG_EXCEPTION) {
3059 tcg_gen_movi_i32(cpu_pc, dc.pc);
3060 gen_exception(&dc, EXCP_DEBUG);
3061 }
3062
3063 do {
3064 check_breakpoint(env, &dc);
3065
3066 if (search_pc) {
3067 j = tcg_op_buf_count();
3068 if (lj < j) {
3069 lj++;
3070 while (lj < j) {
3071 tcg_ctx.gen_opc_instr_start[lj++] = 0;
3072 }
3073 }
3074 tcg_ctx.gen_opc_pc[lj] = dc.pc;
3075 tcg_ctx.gen_opc_instr_start[lj] = 1;
3076 tcg_ctx.gen_opc_icount[lj] = insn_count;
3077 }
3078
3079 if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
3080 tcg_gen_debug_insn_start(dc.pc);
3081 }
3082
3083 ++dc.ccount_delta;
3084
3085 if (insn_count + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
3086 gen_io_start();
3087 }
3088
3089 if (dc.icount) {
3090 TCGLabel *label = gen_new_label();
3091
3092 tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1);
3093 tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label);
3094 tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]);
3095 if (dc.debug) {
3096 gen_debug_exception(&dc, DEBUGCAUSE_IC);
3097 }
3098 gen_set_label(label);
3099 }
3100
3101 if (dc.debug) {
3102 gen_ibreak_check(env, &dc);
3103 }
3104
3105 disas_xtensa_insn(env, &dc);
3106 ++insn_count;
3107 if (dc.icount) {
3108 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount);
3109 }
3110 if (cs->singlestep_enabled) {
3111 tcg_gen_movi_i32(cpu_pc, dc.pc);
3112 gen_exception(&dc, EXCP_DEBUG);
3113 break;
3114 }
3115 } while (dc.is_jmp == DISAS_NEXT &&
3116 insn_count < max_insns &&
3117 dc.pc < next_page_start &&
3118 dc.pc + xtensa_insn_len(env, &dc) <= next_page_start &&
3119 !tcg_op_buf_full());
3120
3121 reset_litbase(&dc);
3122 reset_sar_tracker(&dc);
3123 if (dc.icount) {
3124 tcg_temp_free(dc.next_icount);
3125 }
3126
3127 if (tb->cflags & CF_LAST_IO) {
3128 gen_io_end();
3129 }
3130
3131 if (dc.is_jmp == DISAS_NEXT) {
3132 gen_jumpi(&dc, dc.pc, 0);
3133 }
3134 gen_tb_end(tb, insn_count);
3135
3136 #ifdef DEBUG_DISAS
3137 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
3138 qemu_log("----------------\n");
3139 qemu_log("IN: %s\n", lookup_symbol(pc_start));
3140 log_target_disas(env, pc_start, dc.pc - pc_start, 0);
3141 qemu_log("\n");
3142 }
3143 #endif
3144 if (search_pc) {
3145 j = tcg_op_buf_count();
3146 memset(tcg_ctx.gen_opc_instr_start + lj + 1, 0,
3147 (j - lj) * sizeof(tcg_ctx.gen_opc_instr_start[0]));
3148 } else {
3149 tb->size = dc.pc - pc_start;
3150 tb->icount = insn_count;
3151 }
3152 }
3153
3154 void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb)
3155 {
3156 gen_intermediate_code_internal(xtensa_env_get_cpu(env), tb, false);
3157 }
3158
3159 void gen_intermediate_code_pc(CPUXtensaState *env, TranslationBlock *tb)
3160 {
3161 gen_intermediate_code_internal(xtensa_env_get_cpu(env), tb, true);
3162 }
3163
3164 void xtensa_cpu_dump_state(CPUState *cs, FILE *f,
3165 fprintf_function cpu_fprintf, int flags)
3166 {
3167 XtensaCPU *cpu = XTENSA_CPU(cs);
3168 CPUXtensaState *env = &cpu->env;
3169 int i, j;
3170
3171 cpu_fprintf(f, "PC=%08x\n\n", env->pc);
3172
3173 for (i = j = 0; i < 256; ++i) {
3174 if (xtensa_option_bits_enabled(env->config, sregnames[i].opt_bits)) {
3175 cpu_fprintf(f, "%12s=%08x%c", sregnames[i].name, env->sregs[i],
3176 (j++ % 4) == 3 ? '\n' : ' ');
3177 }
3178 }
3179
3180 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
3181
3182 for (i = j = 0; i < 256; ++i) {
3183 if (xtensa_option_bits_enabled(env->config, uregnames[i].opt_bits)) {
3184 cpu_fprintf(f, "%s=%08x%c", uregnames[i].name, env->uregs[i],
3185 (j++ % 4) == 3 ? '\n' : ' ');
3186 }
3187 }
3188
3189 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
3190
3191 for (i = 0; i < 16; ++i) {
3192 cpu_fprintf(f, " A%02d=%08x%c", i, env->regs[i],
3193 (i % 4) == 3 ? '\n' : ' ');
3194 }
3195
3196 cpu_fprintf(f, "\n");
3197
3198 for (i = 0; i < env->config->nareg; ++i) {
3199 cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i],
3200 (i % 4) == 3 ? '\n' : ' ');
3201 }
3202
3203 if (xtensa_option_enabled(env->config, XTENSA_OPTION_FP_COPROCESSOR)) {
3204 cpu_fprintf(f, "\n");
3205
3206 for (i = 0; i < 16; ++i) {
3207 cpu_fprintf(f, "F%02d=%08x (%+10.8e)%c", i,
3208 float32_val(env->fregs[i]),
3209 *(float *)&env->fregs[i], (i % 2) == 1 ? '\n' : ' ');
3210 }
3211 }
3212 }
3213
3214 void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, int pc_pos)
3215 {
3216 env->pc = tcg_ctx.gen_opc_pc[pc_pos];
3217 }
QEmu