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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
[qemu/ar7.git] / target-xtensa / translate.c
blob2f22cce845068e68b4659c12ffdca73f76c5a068
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 typedef struct DisasContext {
45 const XtensaConfig *config;
46 TranslationBlock *tb;
47 uint32_t pc;
48 uint32_t next_pc;
49 int cring;
50 int ring;
51 uint32_t lbeg;
52 uint32_t lend;
53 TCGv_i32 litbase;
54 int is_jmp;
55 int singlestep_enabled;
56
57 bool sar_5bit;
58 bool sar_m32_5bit;
59 bool sar_m32_allocated;
60 TCGv_i32 sar_m32;
61
62 uint32_t ccount_delta;
63 unsigned used_window;
64
65 bool debug;
66 bool icount;
67 TCGv_i32 next_icount;
68
69 unsigned cpenable;
70 } DisasContext;
71
72 static TCGv_ptr cpu_env;
73 static TCGv_i32 cpu_pc;
74 static TCGv_i32 cpu_R[16];
75 static TCGv_i32 cpu_FR[16];
76 static TCGv_i32 cpu_SR[256];
77 static TCGv_i32 cpu_UR[256];
78
79 #include "exec/gen-icount.h"
80
81 typedef struct XtensaReg {
82 const char *name;
83 uint64_t opt_bits;
84 enum {
85 SR_R = 1,
86 SR_W = 2,
87 SR_X = 4,
88 SR_RW = 3,
89 SR_RWX = 7,
90 } access;
91 } XtensaReg;
92
93 #define XTENSA_REG_ACCESS(regname, opt, acc) { \
94 .name = (regname), \
95 .opt_bits = XTENSA_OPTION_BIT(opt), \
96 .access = (acc), \
97 }
98
99 #define XTENSA_REG(regname, opt) XTENSA_REG_ACCESS(regname, opt, SR_RWX)
100
101 #define XTENSA_REG_BITS_ACCESS(regname, opt, acc) { \
102 .name = (regname), \
103 .opt_bits = (opt), \
104 .access = (acc), \
105 }
106
107 #define XTENSA_REG_BITS(regname, opt) \
108 XTENSA_REG_BITS_ACCESS(regname, opt, SR_RWX)
109
110 static const XtensaReg sregnames[256] = {
111 [LBEG] = XTENSA_REG("LBEG", XTENSA_OPTION_LOOP),
112 [LEND] = XTENSA_REG("LEND", XTENSA_OPTION_LOOP),
113 [LCOUNT] = XTENSA_REG("LCOUNT", XTENSA_OPTION_LOOP),
114 [SAR] = XTENSA_REG_BITS("SAR", XTENSA_OPTION_ALL),
115 [BR] = XTENSA_REG("BR", XTENSA_OPTION_BOOLEAN),
116 [LITBASE] = XTENSA_REG("LITBASE", XTENSA_OPTION_EXTENDED_L32R),
117 [SCOMPARE1] = XTENSA_REG("SCOMPARE1", XTENSA_OPTION_CONDITIONAL_STORE),
118 [ACCLO] = XTENSA_REG("ACCLO", XTENSA_OPTION_MAC16),
119 [ACCHI] = XTENSA_REG("ACCHI", XTENSA_OPTION_MAC16),
120 [MR] = XTENSA_REG("MR0", XTENSA_OPTION_MAC16),
121 [MR + 1] = XTENSA_REG("MR1", XTENSA_OPTION_MAC16),
122 [MR + 2] = XTENSA_REG("MR2", XTENSA_OPTION_MAC16),
123 [MR + 3] = XTENSA_REG("MR3", XTENSA_OPTION_MAC16),
124 [WINDOW_BASE] = XTENSA_REG("WINDOW_BASE", XTENSA_OPTION_WINDOWED_REGISTER),
125 [WINDOW_START] = XTENSA_REG("WINDOW_START",
126 XTENSA_OPTION_WINDOWED_REGISTER),
127 [PTEVADDR] = XTENSA_REG("PTEVADDR", XTENSA_OPTION_MMU),
128 [RASID] = XTENSA_REG("RASID", XTENSA_OPTION_MMU),
129 [ITLBCFG] = XTENSA_REG("ITLBCFG", XTENSA_OPTION_MMU),
130 [DTLBCFG] = XTENSA_REG("DTLBCFG", XTENSA_OPTION_MMU),
131 [IBREAKENABLE] = XTENSA_REG("IBREAKENABLE", XTENSA_OPTION_DEBUG),
132 [CACHEATTR] = XTENSA_REG("CACHEATTR", XTENSA_OPTION_CACHEATTR),
133 [ATOMCTL] = XTENSA_REG("ATOMCTL", XTENSA_OPTION_ATOMCTL),
134 [IBREAKA] = XTENSA_REG("IBREAKA0", XTENSA_OPTION_DEBUG),
135 [IBREAKA + 1] = XTENSA_REG("IBREAKA1", XTENSA_OPTION_DEBUG),
136 [DBREAKA] = XTENSA_REG("DBREAKA0", XTENSA_OPTION_DEBUG),
137 [DBREAKA + 1] = XTENSA_REG("DBREAKA1", XTENSA_OPTION_DEBUG),
138 [DBREAKC] = XTENSA_REG("DBREAKC0", XTENSA_OPTION_DEBUG),
139 [DBREAKC + 1] = XTENSA_REG("DBREAKC1", XTENSA_OPTION_DEBUG),
140 [CONFIGID0] = XTENSA_REG_BITS_ACCESS("CONFIGID0", XTENSA_OPTION_ALL, SR_R),
141 [EPC1] = XTENSA_REG("EPC1", XTENSA_OPTION_EXCEPTION),
142 [EPC1 + 1] = XTENSA_REG("EPC2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
143 [EPC1 + 2] = XTENSA_REG("EPC3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
144 [EPC1 + 3] = XTENSA_REG("EPC4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
145 [EPC1 + 4] = XTENSA_REG("EPC5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
146 [EPC1 + 5] = XTENSA_REG("EPC6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
147 [EPC1 + 6] = XTENSA_REG("EPC7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
148 [DEPC] = XTENSA_REG("DEPC", XTENSA_OPTION_EXCEPTION),
149 [EPS2] = XTENSA_REG("EPS2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
150 [EPS2 + 1] = XTENSA_REG("EPS3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
151 [EPS2 + 2] = XTENSA_REG("EPS4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
152 [EPS2 + 3] = XTENSA_REG("EPS5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
153 [EPS2 + 4] = XTENSA_REG("EPS6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
154 [EPS2 + 5] = XTENSA_REG("EPS7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
155 [CONFIGID1] = XTENSA_REG_BITS_ACCESS("CONFIGID1", XTENSA_OPTION_ALL, SR_R),
156 [EXCSAVE1] = XTENSA_REG("EXCSAVE1", XTENSA_OPTION_EXCEPTION),
157 [EXCSAVE1 + 1] = XTENSA_REG("EXCSAVE2",
158 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
159 [EXCSAVE1 + 2] = XTENSA_REG("EXCSAVE3",
160 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
161 [EXCSAVE1 + 3] = XTENSA_REG("EXCSAVE4",
162 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
163 [EXCSAVE1 + 4] = XTENSA_REG("EXCSAVE5",
164 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
165 [EXCSAVE1 + 5] = XTENSA_REG("EXCSAVE6",
166 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
167 [EXCSAVE1 + 6] = XTENSA_REG("EXCSAVE7",
168 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
169 [CPENABLE] = XTENSA_REG("CPENABLE", XTENSA_OPTION_COPROCESSOR),
170 [INTSET] = XTENSA_REG_ACCESS("INTSET", XTENSA_OPTION_INTERRUPT, SR_RW),
171 [INTCLEAR] = XTENSA_REG_ACCESS("INTCLEAR", XTENSA_OPTION_INTERRUPT, SR_W),
172 [INTENABLE] = XTENSA_REG("INTENABLE", XTENSA_OPTION_INTERRUPT),
173 [PS] = XTENSA_REG_BITS("PS", XTENSA_OPTION_ALL),
174 [VECBASE] = XTENSA_REG("VECBASE", XTENSA_OPTION_RELOCATABLE_VECTOR),
175 [EXCCAUSE] = XTENSA_REG("EXCCAUSE", XTENSA_OPTION_EXCEPTION),
176 [DEBUGCAUSE] = XTENSA_REG_ACCESS("DEBUGCAUSE", XTENSA_OPTION_DEBUG, SR_R),
177 [CCOUNT] = XTENSA_REG("CCOUNT", XTENSA_OPTION_TIMER_INTERRUPT),
178 [PRID] = XTENSA_REG_ACCESS("PRID", XTENSA_OPTION_PROCESSOR_ID, SR_R),
179 [ICOUNT] = XTENSA_REG("ICOUNT", XTENSA_OPTION_DEBUG),
180 [ICOUNTLEVEL] = XTENSA_REG("ICOUNTLEVEL", XTENSA_OPTION_DEBUG),
181 [EXCVADDR] = XTENSA_REG("EXCVADDR", XTENSA_OPTION_EXCEPTION),
182 [CCOMPARE] = XTENSA_REG("CCOMPARE0", XTENSA_OPTION_TIMER_INTERRUPT),
183 [CCOMPARE + 1] = XTENSA_REG("CCOMPARE1",
184 XTENSA_OPTION_TIMER_INTERRUPT),
185 [CCOMPARE + 2] = XTENSA_REG("CCOMPARE2",
186 XTENSA_OPTION_TIMER_INTERRUPT),
187 [MISC] = XTENSA_REG("MISC0", XTENSA_OPTION_MISC_SR),
188 [MISC + 1] = XTENSA_REG("MISC1", XTENSA_OPTION_MISC_SR),
189 [MISC + 2] = XTENSA_REG("MISC2", XTENSA_OPTION_MISC_SR),
190 [MISC + 3] = XTENSA_REG("MISC3", XTENSA_OPTION_MISC_SR),
191 };
192
193 static const XtensaReg uregnames[256] = {
194 [THREADPTR] = XTENSA_REG("THREADPTR", XTENSA_OPTION_THREAD_POINTER),
195 [FCR] = XTENSA_REG("FCR", XTENSA_OPTION_FP_COPROCESSOR),
196 [FSR] = XTENSA_REG("FSR", XTENSA_OPTION_FP_COPROCESSOR),
197 };
198
199 void xtensa_translate_init(void)
200 {
201 static const char * const regnames[] = {
202 "ar0", "ar1", "ar2", "ar3",
203 "ar4", "ar5", "ar6", "ar7",
204 "ar8", "ar9", "ar10", "ar11",
205 "ar12", "ar13", "ar14", "ar15",
206 };
207 static const char * const fregnames[] = {
208 "f0", "f1", "f2", "f3",
209 "f4", "f5", "f6", "f7",
210 "f8", "f9", "f10", "f11",
211 "f12", "f13", "f14", "f15",
212 };
213 int i;
214
215 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
216 cpu_pc = tcg_global_mem_new_i32(TCG_AREG0,
217 offsetof(CPUXtensaState, pc), "pc");
218
219 for (i = 0; i < 16; i++) {
220 cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0,
221 offsetof(CPUXtensaState, regs[i]),
222 regnames[i]);
223 }
224
225 for (i = 0; i < 16; i++) {
226 cpu_FR[i] = tcg_global_mem_new_i32(TCG_AREG0,
227 offsetof(CPUXtensaState, fregs[i]),
228 fregnames[i]);
229 }
230
231 for (i = 0; i < 256; ++i) {
232 if (sregnames[i].name) {
233 cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0,
234 offsetof(CPUXtensaState, sregs[i]),
235 sregnames[i].name);
236 }
237 }
238
239 for (i = 0; i < 256; ++i) {
240 if (uregnames[i].name) {
241 cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0,
242 offsetof(CPUXtensaState, uregs[i]),
243 uregnames[i].name);
244 }
245 }
246 }
247
248 static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt)
249 {
250 return xtensa_option_bits_enabled(dc->config, opt);
251 }
252
253 static inline bool option_enabled(DisasContext *dc, int opt)
254 {
255 return xtensa_option_enabled(dc->config, opt);
256 }
257
258 static void init_litbase(DisasContext *dc)
259 {
260 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
261 dc->litbase = tcg_temp_local_new_i32();
262 tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000);
263 }
264 }
265
266 static void reset_litbase(DisasContext *dc)
267 {
268 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
269 tcg_temp_free(dc->litbase);
270 }
271 }
272
273 static void init_sar_tracker(DisasContext *dc)
274 {
275 dc->sar_5bit = false;
276 dc->sar_m32_5bit = false;
277 dc->sar_m32_allocated = false;
278 }
279
280 static void reset_sar_tracker(DisasContext *dc)
281 {
282 if (dc->sar_m32_allocated) {
283 tcg_temp_free(dc->sar_m32);
284 }
285 }
286
287 static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa)
288 {
289 tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f);
290 if (dc->sar_m32_5bit) {
291 tcg_gen_discard_i32(dc->sar_m32);
292 }
293 dc->sar_5bit = true;
294 dc->sar_m32_5bit = false;
295 }
296
297 static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa)
298 {
299 TCGv_i32 tmp = tcg_const_i32(32);
300 if (!dc->sar_m32_allocated) {
301 dc->sar_m32 = tcg_temp_local_new_i32();
302 dc->sar_m32_allocated = true;
303 }
304 tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f);
305 tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32);
306 dc->sar_5bit = false;
307 dc->sar_m32_5bit = true;
308 tcg_temp_free(tmp);
309 }
310
311 static void gen_advance_ccount_cond(DisasContext *dc)
312 {
313 if (dc->ccount_delta > 0) {
314 TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta);
315 gen_helper_advance_ccount(cpu_env, tmp);
316 tcg_temp_free(tmp);
317 }
318 }
319
320 static void gen_advance_ccount(DisasContext *dc)
321 {
322 gen_advance_ccount_cond(dc);
323 dc->ccount_delta = 0;
324 }
325
326 static void reset_used_window(DisasContext *dc)
327 {
328 dc->used_window = 0;
329 }
330
331 static void gen_exception(DisasContext *dc, int excp)
332 {
333 TCGv_i32 tmp = tcg_const_i32(excp);
334 gen_advance_ccount(dc);
335 gen_helper_exception(cpu_env, tmp);
336 tcg_temp_free(tmp);
337 }
338
339 static void gen_exception_cause(DisasContext *dc, uint32_t cause)
340 {
341 TCGv_i32 tpc = tcg_const_i32(dc->pc);
342 TCGv_i32 tcause = tcg_const_i32(cause);
343 gen_advance_ccount(dc);
344 gen_helper_exception_cause(cpu_env, tpc, tcause);
345 tcg_temp_free(tpc);
346 tcg_temp_free(tcause);
347 if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
348 cause == SYSCALL_CAUSE) {
349 dc->is_jmp = DISAS_UPDATE;
350 }
351 }
352
353 static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause,
354 TCGv_i32 vaddr)
355 {
356 TCGv_i32 tpc = tcg_const_i32(dc->pc);
357 TCGv_i32 tcause = tcg_const_i32(cause);
358 gen_advance_ccount(dc);
359 gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr);
360 tcg_temp_free(tpc);
361 tcg_temp_free(tcause);
362 }
363
364 static void gen_debug_exception(DisasContext *dc, uint32_t cause)
365 {
366 TCGv_i32 tpc = tcg_const_i32(dc->pc);
367 TCGv_i32 tcause = tcg_const_i32(cause);
368 gen_advance_ccount(dc);
369 gen_helper_debug_exception(cpu_env, tpc, tcause);
370 tcg_temp_free(tpc);
371 tcg_temp_free(tcause);
372 if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
373 dc->is_jmp = DISAS_UPDATE;
374 }
375 }
376
377 static void gen_check_privilege(DisasContext *dc)
378 {
379 if (dc->cring) {
380 gen_exception_cause(dc, PRIVILEGED_CAUSE);
381 dc->is_jmp = DISAS_UPDATE;
382 }
383 }
384
385 static void gen_check_cpenable(DisasContext *dc, unsigned cp)
386 {
387 if (option_enabled(dc, XTENSA_OPTION_COPROCESSOR) &&
388 !(dc->cpenable & (1 << cp))) {
389 gen_exception_cause(dc, COPROCESSOR0_DISABLED + cp);
390 dc->is_jmp = DISAS_UPDATE;
391 }
392 }
393
394 static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot)
395 {
396 tcg_gen_mov_i32(cpu_pc, dest);
397 gen_advance_ccount(dc);
398 if (dc->icount) {
399 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount);
400 }
401 if (dc->singlestep_enabled) {
402 gen_exception(dc, EXCP_DEBUG);
403 } else {
404 if (slot >= 0) {
405 tcg_gen_goto_tb(slot);
406 tcg_gen_exit_tb((uintptr_t)dc->tb + slot);
407 } else {
408 tcg_gen_exit_tb(0);
409 }
410 }
411 dc->is_jmp = DISAS_UPDATE;
412 }
413
414 static void gen_jump(DisasContext *dc, TCGv dest)
415 {
416 gen_jump_slot(dc, dest, -1);
417 }
418
419 static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot)
420 {
421 TCGv_i32 tmp = tcg_const_i32(dest);
422 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
423 slot = -1;
424 }
425 gen_jump_slot(dc, tmp, slot);
426 tcg_temp_free(tmp);
427 }
428
429 static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest,
430 int slot)
431 {
432 TCGv_i32 tcallinc = tcg_const_i32(callinc);
433
434 tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS],
435 tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN);
436 tcg_temp_free(tcallinc);
437 tcg_gen_movi_i32(cpu_R[callinc << 2],
438 (callinc << 30) | (dc->next_pc & 0x3fffffff));
439 gen_jump_slot(dc, dest, slot);
440 }
441
442 static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest)
443 {
444 gen_callw_slot(dc, callinc, dest, -1);
445 }
446
447 static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot)
448 {
449 TCGv_i32 tmp = tcg_const_i32(dest);
450 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
451 slot = -1;
452 }
453 gen_callw_slot(dc, callinc, tmp, slot);
454 tcg_temp_free(tmp);
455 }
456
457 static bool gen_check_loop_end(DisasContext *dc, int slot)
458 {
459 if (option_enabled(dc, XTENSA_OPTION_LOOP) &&
460 !(dc->tb->flags & XTENSA_TBFLAG_EXCM) &&
461 dc->next_pc == dc->lend) {
462 int label = gen_new_label();
463
464 gen_advance_ccount(dc);
465 tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
466 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
467 gen_jumpi(dc, dc->lbeg, slot);
468 gen_set_label(label);
469 gen_jumpi(dc, dc->next_pc, -1);
470 return true;
471 }
472 return false;
473 }
474
475 static void gen_jumpi_check_loop_end(DisasContext *dc, int slot)
476 {
477 if (!gen_check_loop_end(dc, slot)) {
478 gen_jumpi(dc, dc->next_pc, slot);
479 }
480 }
481
482 static void gen_brcond(DisasContext *dc, TCGCond cond,
483 TCGv_i32 t0, TCGv_i32 t1, uint32_t offset)
484 {
485 int label = gen_new_label();
486
487 gen_advance_ccount(dc);
488 tcg_gen_brcond_i32(cond, t0, t1, label);
489 gen_jumpi_check_loop_end(dc, 0);
490 gen_set_label(label);
491 gen_jumpi(dc, dc->pc + offset, 1);
492 }
493
494 static void gen_brcondi(DisasContext *dc, TCGCond cond,
495 TCGv_i32 t0, uint32_t t1, uint32_t offset)
496 {
497 TCGv_i32 tmp = tcg_const_i32(t1);
498 gen_brcond(dc, cond, t0, tmp, offset);
499 tcg_temp_free(tmp);
500 }
501
502 static bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access)
503 {
504 if (!xtensa_option_bits_enabled(dc->config, sregnames[sr].opt_bits)) {
505 if (sregnames[sr].name) {
506 qemu_log("SR %s is not configured\n", sregnames[sr].name);
507 } else {
508 qemu_log("SR %d is not implemented\n", sr);
509 }
510 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
511 return false;
512 } else if (!(sregnames[sr].access & access)) {
513 static const char * const access_text[] = {
514 [SR_R] = "rsr",
515 [SR_W] = "wsr",
516 [SR_X] = "xsr",
517 };
518 assert(access < ARRAY_SIZE(access_text) && access_text[access]);
519 qemu_log("SR %s is not available for %s\n", sregnames[sr].name,
520 access_text[access]);
521 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
522 return false;
523 }
524 return true;
525 }
526
527 static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr)
528 {
529 gen_advance_ccount(dc);
530 tcg_gen_mov_i32(d, cpu_SR[sr]);
531 }
532
533 static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
534 {
535 tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10);
536 tcg_gen_or_i32(d, d, cpu_SR[sr]);
537 tcg_gen_andi_i32(d, d, 0xfffffffc);
538 }
539
540 static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
541 {
542 static void (* const rsr_handler[256])(DisasContext *dc,
543 TCGv_i32 d, uint32_t sr) = {
544 [CCOUNT] = gen_rsr_ccount,
545 [PTEVADDR] = gen_rsr_ptevaddr,
546 };
547
548 if (rsr_handler[sr]) {
549 rsr_handler[sr](dc, d, sr);
550 } else {
551 tcg_gen_mov_i32(d, cpu_SR[sr]);
552 }
553 }
554
555 static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
556 {
557 gen_helper_wsr_lbeg(cpu_env, s);
558 gen_jumpi_check_loop_end(dc, 0);
559 }
560
561 static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
562 {
563 gen_helper_wsr_lend(cpu_env, s);
564 gen_jumpi_check_loop_end(dc, 0);
565 }
566
567 static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s)
568 {
569 tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f);
570 if (dc->sar_m32_5bit) {
571 tcg_gen_discard_i32(dc->sar_m32);
572 }
573 dc->sar_5bit = false;
574 dc->sar_m32_5bit = false;
575 }
576
577 static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s)
578 {
579 tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff);
580 }
581
582 static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s)
583 {
584 tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001);
585 /* This can change tb->flags, so exit tb */
586 gen_jumpi_check_loop_end(dc, -1);
587 }
588
589 static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s)
590 {
591 tcg_gen_ext8s_i32(cpu_SR[sr], s);
592 }
593
594 static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
595 {
596 gen_helper_wsr_windowbase(cpu_env, v);
597 reset_used_window(dc);
598 }
599
600 static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
601 {
602 tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1);
603 reset_used_window(dc);
604 }
605
606 static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v)
607 {
608 tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000);
609 }
610
611 static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
612 {
613 gen_helper_wsr_rasid(cpu_env, v);
614 /* This can change tb->flags, so exit tb */
615 gen_jumpi_check_loop_end(dc, -1);
616 }
617
618 static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v)
619 {
620 tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000);
621 }
622
623 static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
624 {
625 gen_helper_wsr_ibreakenable(cpu_env, v);
626 gen_jumpi_check_loop_end(dc, 0);
627 }
628
629 static void gen_wsr_atomctl(DisasContext *dc, uint32_t sr, TCGv_i32 v)
630 {
631 tcg_gen_andi_i32(cpu_SR[sr], v, 0x3f);
632 }
633
634 static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
635 {
636 unsigned id = sr - IBREAKA;
637
638 if (id < dc->config->nibreak) {
639 TCGv_i32 tmp = tcg_const_i32(id);
640 gen_helper_wsr_ibreaka(cpu_env, tmp, v);
641 tcg_temp_free(tmp);
642 gen_jumpi_check_loop_end(dc, 0);
643 }
644 }
645
646 static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
647 {
648 unsigned id = sr - DBREAKA;
649
650 if (id < dc->config->ndbreak) {
651 TCGv_i32 tmp = tcg_const_i32(id);
652 gen_helper_wsr_dbreaka(cpu_env, tmp, v);
653 tcg_temp_free(tmp);
654 }
655 }
656
657 static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v)
658 {
659 unsigned id = sr - DBREAKC;
660
661 if (id < dc->config->ndbreak) {
662 TCGv_i32 tmp = tcg_const_i32(id);
663 gen_helper_wsr_dbreakc(cpu_env, tmp, v);
664 tcg_temp_free(tmp);
665 }
666 }
667
668 static void gen_wsr_cpenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
669 {
670 tcg_gen_andi_i32(cpu_SR[sr], v, 0xff);
671 /* This can change tb->flags, so exit tb */
672 gen_jumpi_check_loop_end(dc, -1);
673 }
674
675 static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v)
676 {
677 tcg_gen_andi_i32(cpu_SR[sr], v,
678 dc->config->inttype_mask[INTTYPE_SOFTWARE]);
679 gen_helper_check_interrupts(cpu_env);
680 gen_jumpi_check_loop_end(dc, 0);
681 }
682
683 static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v)
684 {
685 TCGv_i32 tmp = tcg_temp_new_i32();
686
687 tcg_gen_andi_i32(tmp, v,
688 dc->config->inttype_mask[INTTYPE_EDGE] |
689 dc->config->inttype_mask[INTTYPE_NMI] |
690 dc->config->inttype_mask[INTTYPE_SOFTWARE]);
691 tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp);
692 tcg_temp_free(tmp);
693 gen_helper_check_interrupts(cpu_env);
694 }
695
696 static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
697 {
698 tcg_gen_mov_i32(cpu_SR[sr], v);
699 gen_helper_check_interrupts(cpu_env);
700 gen_jumpi_check_loop_end(dc, 0);
701 }
702
703 static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
704 {
705 uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB |
706 PS_UM | PS_EXCM | PS_INTLEVEL;
707
708 if (option_enabled(dc, XTENSA_OPTION_MMU)) {
709 mask |= PS_RING;
710 }
711 tcg_gen_andi_i32(cpu_SR[sr], v, mask);
712 reset_used_window(dc);
713 gen_helper_check_interrupts(cpu_env);
714 /* This can change mmu index and tb->flags, so exit tb */
715 gen_jumpi_check_loop_end(dc, -1);
716 }
717
718 static void gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v)
719 {
720 if (dc->icount) {
721 tcg_gen_mov_i32(dc->next_icount, v);
722 } else {
723 tcg_gen_mov_i32(cpu_SR[sr], v);
724 }
725 }
726
727 static void gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v)
728 {
729 tcg_gen_andi_i32(cpu_SR[sr], v, 0xf);
730 /* This can change tb->flags, so exit tb */
731 gen_jumpi_check_loop_end(dc, -1);
732 }
733
734 static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v)
735 {
736 uint32_t id = sr - CCOMPARE;
737 if (id < dc->config->nccompare) {
738 uint32_t int_bit = 1 << dc->config->timerint[id];
739 gen_advance_ccount(dc);
740 tcg_gen_mov_i32(cpu_SR[sr], v);
741 tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit);
742 gen_helper_check_interrupts(cpu_env);
743 }
744 }
745
746 static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s)
747 {
748 static void (* const wsr_handler[256])(DisasContext *dc,
749 uint32_t sr, TCGv_i32 v) = {
750 [LBEG] = gen_wsr_lbeg,
751 [LEND] = gen_wsr_lend,
752 [SAR] = gen_wsr_sar,
753 [BR] = gen_wsr_br,
754 [LITBASE] = gen_wsr_litbase,
755 [ACCHI] = gen_wsr_acchi,
756 [WINDOW_BASE] = gen_wsr_windowbase,
757 [WINDOW_START] = gen_wsr_windowstart,
758 [PTEVADDR] = gen_wsr_ptevaddr,
759 [RASID] = gen_wsr_rasid,
760 [ITLBCFG] = gen_wsr_tlbcfg,
761 [DTLBCFG] = gen_wsr_tlbcfg,
762 [IBREAKENABLE] = gen_wsr_ibreakenable,
763 [ATOMCTL] = gen_wsr_atomctl,
764 [IBREAKA] = gen_wsr_ibreaka,
765 [IBREAKA + 1] = gen_wsr_ibreaka,
766 [DBREAKA] = gen_wsr_dbreaka,
767 [DBREAKA + 1] = gen_wsr_dbreaka,
768 [DBREAKC] = gen_wsr_dbreakc,
769 [DBREAKC + 1] = gen_wsr_dbreakc,
770 [CPENABLE] = gen_wsr_cpenable,
771 [INTSET] = gen_wsr_intset,
772 [INTCLEAR] = gen_wsr_intclear,
773 [INTENABLE] = gen_wsr_intenable,
774 [PS] = gen_wsr_ps,
775 [ICOUNT] = gen_wsr_icount,
776 [ICOUNTLEVEL] = gen_wsr_icountlevel,
777 [CCOMPARE] = gen_wsr_ccompare,
778 [CCOMPARE + 1] = gen_wsr_ccompare,
779 [CCOMPARE + 2] = gen_wsr_ccompare,
780 };
781
782 if (wsr_handler[sr]) {
783 wsr_handler[sr](dc, sr, s);
784 } else {
785 tcg_gen_mov_i32(cpu_SR[sr], s);
786 }
787 }
788
789 static void gen_wur(uint32_t ur, TCGv_i32 s)
790 {
791 switch (ur) {
792 case FCR:
793 gen_helper_wur_fcr(cpu_env, s);
794 break;
795
796 case FSR:
797 tcg_gen_andi_i32(cpu_UR[ur], s, 0xffffff80);
798 break;
799
800 default:
801 tcg_gen_mov_i32(cpu_UR[ur], s);
802 break;
803 }
804 }
805
806 static void gen_load_store_alignment(DisasContext *dc, int shift,
807 TCGv_i32 addr, bool no_hw_alignment)
808 {
809 if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) {
810 tcg_gen_andi_i32(addr, addr, ~0 << shift);
811 } else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) &&
812 no_hw_alignment) {
813 int label = gen_new_label();
814 TCGv_i32 tmp = tcg_temp_new_i32();
815 tcg_gen_andi_i32(tmp, addr, ~(~0 << shift));
816 tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
817 gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr);
818 gen_set_label(label);
819 tcg_temp_free(tmp);
820 }
821 }
822
823 static void gen_waiti(DisasContext *dc, uint32_t imm4)
824 {
825 TCGv_i32 pc = tcg_const_i32(dc->next_pc);
826 TCGv_i32 intlevel = tcg_const_i32(imm4);
827 gen_advance_ccount(dc);
828 gen_helper_waiti(cpu_env, pc, intlevel);
829 tcg_temp_free(pc);
830 tcg_temp_free(intlevel);
831 }
832
833 static void gen_window_check1(DisasContext *dc, unsigned r1)
834 {
835 if (dc->tb->flags & XTENSA_TBFLAG_EXCM) {
836 return;
837 }
838 if (option_enabled(dc, XTENSA_OPTION_WINDOWED_REGISTER) &&
839 r1 / 4 > dc->used_window) {
840 int label = gen_new_label();
841 TCGv_i32 ws = tcg_temp_new_i32();
842
843 dc->used_window = r1 / 4;
844 tcg_gen_deposit_i32(ws, cpu_SR[WINDOW_START], cpu_SR[WINDOW_START],
845 dc->config->nareg / 4, dc->config->nareg / 4);
846 tcg_gen_shr_i32(ws, ws, cpu_SR[WINDOW_BASE]);
847 tcg_gen_andi_i32(ws, ws, (2 << (r1 / 4)) - 2);
848 tcg_gen_brcondi_i32(TCG_COND_EQ, ws, 0, label);
849 {
850 TCGv_i32 pc = tcg_const_i32(dc->pc);
851 TCGv_i32 w = tcg_const_i32(r1 / 4);
852
853 gen_advance_ccount_cond(dc);
854 gen_helper_window_check(cpu_env, pc, w);
855
856 tcg_temp_free(w);
857 tcg_temp_free(pc);
858 }
859 gen_set_label(label);
860 tcg_temp_free(ws);
861 }
862 }
863
864 static void gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2)
865 {
866 gen_window_check1(dc, r1 > r2 ? r1 : r2);
867 }
868
869 static void gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2,
870 unsigned r3)
871 {
872 gen_window_check2(dc, r1, r2 > r3 ? r2 : r3);
873 }
874
875 static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned)
876 {
877 TCGv_i32 m = tcg_temp_new_i32();
878
879 if (hi) {
880 (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16);
881 } else {
882 (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v);
883 }
884 return m;
885 }
886
887 static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc)
888 {
889 #define HAS_OPTION_BITS(opt) do { \
890 if (!option_bits_enabled(dc, opt)) { \
891 qemu_log("Option is not enabled %s:%d\n", \
892 __FILE__, __LINE__); \
893 goto invalid_opcode; \
894 } \
895 } while (0)
896
897 #define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt))
898
899 #define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__)
900 #define RESERVED() do { \
901 qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \
902 dc->pc, b0, b1, b2, __FILE__, __LINE__); \
903 goto invalid_opcode; \
904 } while (0)
905
906
907 #ifdef TARGET_WORDS_BIGENDIAN
908 #define OP0 (((b0) & 0xf0) >> 4)
909 #define OP1 (((b2) & 0xf0) >> 4)
910 #define OP2 ((b2) & 0xf)
911 #define RRR_R ((b1) & 0xf)
912 #define RRR_S (((b1) & 0xf0) >> 4)
913 #define RRR_T ((b0) & 0xf)
914 #else
915 #define OP0 (((b0) & 0xf))
916 #define OP1 (((b2) & 0xf))
917 #define OP2 (((b2) & 0xf0) >> 4)
918 #define RRR_R (((b1) & 0xf0) >> 4)
919 #define RRR_S (((b1) & 0xf))
920 #define RRR_T (((b0) & 0xf0) >> 4)
921 #endif
922 #define RRR_X ((RRR_R & 0x4) >> 2)
923 #define RRR_Y ((RRR_T & 0x4) >> 2)
924 #define RRR_W (RRR_R & 0x3)
925
926 #define RRRN_R RRR_R
927 #define RRRN_S RRR_S
928 #define RRRN_T RRR_T
929
930 #define RRI4_R RRR_R
931 #define RRI4_S RRR_S
932 #define RRI4_T RRR_T
933 #ifdef TARGET_WORDS_BIGENDIAN
934 #define RRI4_IMM4 ((b2) & 0xf)
935 #else
936 #define RRI4_IMM4 (((b2) & 0xf0) >> 4)
937 #endif
938
939 #define RRI8_R RRR_R
940 #define RRI8_S RRR_S
941 #define RRI8_T RRR_T
942 #define RRI8_IMM8 (b2)
943 #define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8)
944
945 #ifdef TARGET_WORDS_BIGENDIAN
946 #define RI16_IMM16 (((b1) << 8) | (b2))
947 #else
948 #define RI16_IMM16 (((b2) << 8) | (b1))
949 #endif
950
951 #ifdef TARGET_WORDS_BIGENDIAN
952 #define CALL_N (((b0) & 0xc) >> 2)
953 #define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2))
954 #else
955 #define CALL_N (((b0) & 0x30) >> 4)
956 #define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10))
957 #endif
958 #define CALL_OFFSET_SE \
959 (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET)
960
961 #define CALLX_N CALL_N
962 #ifdef TARGET_WORDS_BIGENDIAN
963 #define CALLX_M ((b0) & 0x3)
964 #else
965 #define CALLX_M (((b0) & 0xc0) >> 6)
966 #endif
967 #define CALLX_S RRR_S
968
969 #define BRI12_M CALLX_M
970 #define BRI12_S RRR_S
971 #ifdef TARGET_WORDS_BIGENDIAN
972 #define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2))
973 #else
974 #define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4))
975 #endif
976 #define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12)
977
978 #define BRI8_M BRI12_M
979 #define BRI8_R RRI8_R
980 #define BRI8_S RRI8_S
981 #define BRI8_IMM8 RRI8_IMM8
982 #define BRI8_IMM8_SE RRI8_IMM8_SE
983
984 #define RSR_SR (b1)
985
986 uint8_t b0 = cpu_ldub_code(env, dc->pc);
987 uint8_t b1 = cpu_ldub_code(env, dc->pc + 1);
988 uint8_t b2 = 0;
989
990 static const uint32_t B4CONST[] = {
991 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
992 };
993
994 static const uint32_t B4CONSTU[] = {
995 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
996 };
997
998 if (OP0 >= 8) {
999 dc->next_pc = dc->pc + 2;
1000 HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);
1001 } else {
1002 dc->next_pc = dc->pc + 3;
1003 b2 = cpu_ldub_code(env, dc->pc + 2);
1004 }
1005
1006 switch (OP0) {
1007 case 0: /*QRST*/
1008 switch (OP1) {
1009 case 0: /*RST0*/
1010 switch (OP2) {
1011 case 0: /*ST0*/
1012 if ((RRR_R & 0xc) == 0x8) {
1013 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1014 }
1015
1016 switch (RRR_R) {
1017 case 0: /*SNM0*/
1018 switch (CALLX_M) {
1019 case 0: /*ILL*/
1020 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1021 break;
1022
1023 case 1: /*reserved*/
1024 RESERVED();
1025 break;
1026
1027 case 2: /*JR*/
1028 switch (CALLX_N) {
1029 case 0: /*RET*/
1030 case 2: /*JX*/
1031 gen_window_check1(dc, CALLX_S);
1032 gen_jump(dc, cpu_R[CALLX_S]);
1033 break;
1034
1035 case 1: /*RETWw*/
1036 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1037 {
1038 TCGv_i32 tmp = tcg_const_i32(dc->pc);
1039 gen_advance_ccount(dc);
1040 gen_helper_retw(tmp, cpu_env, tmp);
1041 gen_jump(dc, tmp);
1042 tcg_temp_free(tmp);
1043 }
1044 break;
1045
1046 case 3: /*reserved*/
1047 RESERVED();
1048 break;
1049 }
1050 break;
1051
1052 case 3: /*CALLX*/
1053 gen_window_check2(dc, CALLX_S, CALLX_N << 2);
1054 switch (CALLX_N) {
1055 case 0: /*CALLX0*/
1056 {
1057 TCGv_i32 tmp = tcg_temp_new_i32();
1058 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
1059 tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
1060 gen_jump(dc, tmp);
1061 tcg_temp_free(tmp);
1062 }
1063 break;
1064
1065 case 1: /*CALLX4w*/
1066 case 2: /*CALLX8w*/
1067 case 3: /*CALLX12w*/
1068 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1069 {
1070 TCGv_i32 tmp = tcg_temp_new_i32();
1071
1072 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
1073 gen_callw(dc, CALLX_N, tmp);
1074 tcg_temp_free(tmp);
1075 }
1076 break;
1077 }
1078 break;
1079 }
1080 break;
1081
1082 case 1: /*MOVSPw*/
1083 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1084 gen_window_check2(dc, RRR_T, RRR_S);
1085 {
1086 TCGv_i32 pc = tcg_const_i32(dc->pc);
1087 gen_advance_ccount(dc);
1088 gen_helper_movsp(cpu_env, pc);
1089 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]);
1090 tcg_temp_free(pc);
1091 }
1092 break;
1093
1094 case 2: /*SYNC*/
1095 switch (RRR_T) {
1096 case 0: /*ISYNC*/
1097 break;
1098
1099 case 1: /*RSYNC*/
1100 break;
1101
1102 case 2: /*ESYNC*/
1103 break;
1104
1105 case 3: /*DSYNC*/
1106 break;
1107
1108 case 8: /*EXCW*/
1109 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1110 break;
1111
1112 case 12: /*MEMW*/
1113 break;
1114
1115 case 13: /*EXTW*/
1116 break;
1117
1118 case 15: /*NOP*/
1119 break;
1120
1121 default: /*reserved*/
1122 RESERVED();
1123 break;
1124 }
1125 break;
1126
1127 case 3: /*RFEIx*/
1128 switch (RRR_T) {
1129 case 0: /*RFETx*/
1130 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1131 switch (RRR_S) {
1132 case 0: /*RFEx*/
1133 gen_check_privilege(dc);
1134 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
1135 gen_helper_check_interrupts(cpu_env);
1136 gen_jump(dc, cpu_SR[EPC1]);
1137 break;
1138
1139 case 1: /*RFUEx*/
1140 RESERVED();
1141 break;
1142
1143 case 2: /*RFDEx*/
1144 gen_check_privilege(dc);
1145 gen_jump(dc, cpu_SR[
1146 dc->config->ndepc ? DEPC : EPC1]);
1147 break;
1148
1149 case 4: /*RFWOw*/
1150 case 5: /*RFWUw*/
1151 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1152 gen_check_privilege(dc);
1153 {
1154 TCGv_i32 tmp = tcg_const_i32(1);
1155
1156 tcg_gen_andi_i32(
1157 cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
1158 tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]);
1159
1160 if (RRR_S == 4) {
1161 tcg_gen_andc_i32(cpu_SR[WINDOW_START],
1162 cpu_SR[WINDOW_START], tmp);
1163 } else {
1164 tcg_gen_or_i32(cpu_SR[WINDOW_START],
1165 cpu_SR[WINDOW_START], tmp);
1166 }
1167
1168 gen_helper_restore_owb(cpu_env);
1169 gen_helper_check_interrupts(cpu_env);
1170 gen_jump(dc, cpu_SR[EPC1]);
1171
1172 tcg_temp_free(tmp);
1173 }
1174 break;
1175
1176 default: /*reserved*/
1177 RESERVED();
1178 break;
1179 }
1180 break;
1181
1182 case 1: /*RFIx*/
1183 HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT);
1184 if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) {
1185 gen_check_privilege(dc);
1186 tcg_gen_mov_i32(cpu_SR[PS],
1187 cpu_SR[EPS2 + RRR_S - 2]);
1188 gen_helper_check_interrupts(cpu_env);
1189 gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]);
1190 } else {
1191 qemu_log("RFI %d is illegal\n", RRR_S);
1192 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1193 }
1194 break;
1195
1196 case 2: /*RFME*/
1197 TBD();
1198 break;
1199
1200 default: /*reserved*/
1201 RESERVED();
1202 break;
1203
1204 }
1205 break;
1206
1207 case 4: /*BREAKx*/
1208 HAS_OPTION(XTENSA_OPTION_DEBUG);
1209 if (dc->debug) {
1210 gen_debug_exception(dc, DEBUGCAUSE_BI);
1211 }
1212 break;
1213
1214 case 5: /*SYSCALLx*/
1215 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1216 switch (RRR_S) {
1217 case 0: /*SYSCALLx*/
1218 gen_exception_cause(dc, SYSCALL_CAUSE);
1219 break;
1220
1221 case 1: /*SIMCALL*/
1222 if (semihosting_enabled) {
1223 gen_check_privilege(dc);
1224 gen_helper_simcall(cpu_env);
1225 } else {
1226 qemu_log("SIMCALL but semihosting is disabled\n");
1227 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1228 }
1229 break;
1230
1231 default:
1232 RESERVED();
1233 break;
1234 }
1235 break;
1236
1237 case 6: /*RSILx*/
1238 HAS_OPTION(XTENSA_OPTION_INTERRUPT);
1239 gen_check_privilege(dc);
1240 gen_window_check1(dc, RRR_T);
1241 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]);
1242 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL);
1243 tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S);
1244 gen_helper_check_interrupts(cpu_env);
1245 gen_jumpi_check_loop_end(dc, 0);
1246 break;
1247
1248 case 7: /*WAITIx*/
1249 HAS_OPTION(XTENSA_OPTION_INTERRUPT);
1250 gen_check_privilege(dc);
1251 gen_waiti(dc, RRR_S);
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 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 break;
1290
1291 case 2: /*OR*/
1292 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1293 tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1294 break;
1295
1296 case 3: /*XOR*/
1297 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1298 tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1299 break;
1300
1301 case 4: /*ST1*/
1302 switch (RRR_R) {
1303 case 0: /*SSR*/
1304 gen_window_check1(dc, RRR_S);
1305 gen_right_shift_sar(dc, cpu_R[RRR_S]);
1306 break;
1307
1308 case 1: /*SSL*/
1309 gen_window_check1(dc, RRR_S);
1310 gen_left_shift_sar(dc, cpu_R[RRR_S]);
1311 break;
1312
1313 case 2: /*SSA8L*/
1314 gen_window_check1(dc, RRR_S);
1315 {
1316 TCGv_i32 tmp = tcg_temp_new_i32();
1317 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
1318 gen_right_shift_sar(dc, tmp);
1319 tcg_temp_free(tmp);
1320 }
1321 break;
1322
1323 case 3: /*SSA8B*/
1324 gen_window_check1(dc, RRR_S);
1325 {
1326 TCGv_i32 tmp = tcg_temp_new_i32();
1327 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
1328 gen_left_shift_sar(dc, tmp);
1329 tcg_temp_free(tmp);
1330 }
1331 break;
1332
1333 case 4: /*SSAI*/
1334 {
1335 TCGv_i32 tmp = tcg_const_i32(
1336 RRR_S | ((RRR_T & 1) << 4));
1337 gen_right_shift_sar(dc, tmp);
1338 tcg_temp_free(tmp);
1339 }
1340 break;
1341
1342 case 6: /*RER*/
1343 TBD();
1344 break;
1345
1346 case 7: /*WER*/
1347 TBD();
1348 break;
1349
1350 case 8: /*ROTWw*/
1351 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1352 gen_check_privilege(dc);
1353 {
1354 TCGv_i32 tmp = tcg_const_i32(
1355 RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
1356 gen_helper_rotw(cpu_env, tmp);
1357 tcg_temp_free(tmp);
1358 reset_used_window(dc);
1359 }
1360 break;
1361
1362 case 14: /*NSAu*/
1363 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
1364 gen_window_check2(dc, RRR_S, RRR_T);
1365 gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);
1366 break;
1367
1368 case 15: /*NSAUu*/
1369 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
1370 gen_window_check2(dc, RRR_S, RRR_T);
1371 gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);
1372 break;
1373
1374 default: /*reserved*/
1375 RESERVED();
1376 break;
1377 }
1378 break;
1379
1380 case 5: /*TLB*/
1381 HAS_OPTION_BITS(
1382 XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) |
1383 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) |
1384 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION));
1385 gen_check_privilege(dc);
1386 gen_window_check2(dc, RRR_S, RRR_T);
1387 {
1388 TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0);
1389
1390 switch (RRR_R & 7) {
1391 case 3: /*RITLB0*/ /*RDTLB0*/
1392 gen_helper_rtlb0(cpu_R[RRR_T],
1393 cpu_env, cpu_R[RRR_S], dtlb);
1394 break;
1395
1396 case 4: /*IITLB*/ /*IDTLB*/
1397 gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb);
1398 /* This could change memory mapping, so exit tb */
1399 gen_jumpi_check_loop_end(dc, -1);
1400 break;
1401
1402 case 5: /*PITLB*/ /*PDTLB*/
1403 tcg_gen_movi_i32(cpu_pc, dc->pc);
1404 gen_helper_ptlb(cpu_R[RRR_T],
1405 cpu_env, cpu_R[RRR_S], dtlb);
1406 break;
1407
1408 case 6: /*WITLB*/ /*WDTLB*/
1409 gen_helper_wtlb(
1410 cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
1411 /* This could change memory mapping, so exit tb */
1412 gen_jumpi_check_loop_end(dc, -1);
1413 break;
1414
1415 case 7: /*RITLB1*/ /*RDTLB1*/
1416 gen_helper_rtlb1(cpu_R[RRR_T],
1417 cpu_env, cpu_R[RRR_S], dtlb);
1418 break;
1419
1420 default:
1421 tcg_temp_free(dtlb);
1422 RESERVED();
1423 break;
1424 }
1425 tcg_temp_free(dtlb);
1426 }
1427 break;
1428
1429 case 6: /*RT0*/
1430 gen_window_check2(dc, RRR_R, RRR_T);
1431 switch (RRR_S) {
1432 case 0: /*NEG*/
1433 tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);
1434 break;
1435
1436 case 1: /*ABS*/
1437 {
1438 TCGv_i32 zero = tcg_const_i32(0);
1439 TCGv_i32 neg = tcg_temp_new_i32();
1440
1441 tcg_gen_neg_i32(neg, cpu_R[RRR_T]);
1442 tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R],
1443 cpu_R[RRR_T], zero, cpu_R[RRR_T], neg);
1444 tcg_temp_free(neg);
1445 tcg_temp_free(zero);
1446 }
1447 break;
1448
1449 default: /*reserved*/
1450 RESERVED();
1451 break;
1452 }
1453 break;
1454
1455 case 7: /*reserved*/
1456 RESERVED();
1457 break;
1458
1459 case 8: /*ADD*/
1460 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1461 tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1462 break;
1463
1464 case 9: /*ADD**/
1465 case 10:
1466 case 11:
1467 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1468 {
1469 TCGv_i32 tmp = tcg_temp_new_i32();
1470 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8);
1471 tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);
1472 tcg_temp_free(tmp);
1473 }
1474 break;
1475
1476 case 12: /*SUB*/
1477 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1478 tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1479 break;
1480
1481 case 13: /*SUB**/
1482 case 14:
1483 case 15:
1484 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1485 {
1486 TCGv_i32 tmp = tcg_temp_new_i32();
1487 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12);
1488 tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);
1489 tcg_temp_free(tmp);
1490 }
1491 break;
1492 }
1493 break;
1494
1495 case 1: /*RST1*/
1496 switch (OP2) {
1497 case 0: /*SLLI*/
1498 case 1:
1499 gen_window_check2(dc, RRR_R, RRR_S);
1500 tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],
1501 32 - (RRR_T | ((OP2 & 1) << 4)));
1502 break;
1503
1504 case 2: /*SRAI*/
1505 case 3:
1506 gen_window_check2(dc, RRR_R, RRR_T);
1507 tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],
1508 RRR_S | ((OP2 & 1) << 4));
1509 break;
1510
1511 case 4: /*SRLI*/
1512 gen_window_check2(dc, RRR_R, RRR_T);
1513 tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);
1514 break;
1515
1516 case 6: /*XSR*/
1517 if (gen_check_sr(dc, RSR_SR, SR_X)) {
1518 TCGv_i32 tmp = tcg_temp_new_i32();
1519
1520 if (RSR_SR >= 64) {
1521 gen_check_privilege(dc);
1522 }
1523 gen_window_check1(dc, RRR_T);
1524 tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
1525 gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
1526 gen_wsr(dc, RSR_SR, tmp);
1527 tcg_temp_free(tmp);
1528 }
1529 break;
1530
1531 /*
1532 * Note: 64 bit ops are used here solely because SAR values
1533 * have range 0..63
1534 */
1535 #define gen_shift_reg(cmd, reg) do { \
1536 TCGv_i64 tmp = tcg_temp_new_i64(); \
1537 tcg_gen_extu_i32_i64(tmp, reg); \
1538 tcg_gen_##cmd##_i64(v, v, tmp); \
1539 tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \
1540 tcg_temp_free_i64(v); \
1541 tcg_temp_free_i64(tmp); \
1542 } while (0)
1543
1544 #define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
1545
1546 case 8: /*SRC*/
1547 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1548 {
1549 TCGv_i64 v = tcg_temp_new_i64();
1550 tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);
1551 gen_shift(shr);
1552 }
1553 break;
1554
1555 case 9: /*SRL*/
1556 gen_window_check2(dc, RRR_R, RRR_T);
1557 if (dc->sar_5bit) {
1558 tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
1559 } else {
1560 TCGv_i64 v = tcg_temp_new_i64();
1561 tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]);
1562 gen_shift(shr);
1563 }
1564 break;
1565
1566 case 10: /*SLL*/
1567 gen_window_check2(dc, RRR_R, RRR_S);
1568 if (dc->sar_m32_5bit) {
1569 tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);
1570 } else {
1571 TCGv_i64 v = tcg_temp_new_i64();
1572 TCGv_i32 s = tcg_const_i32(32);
1573 tcg_gen_sub_i32(s, s, cpu_SR[SAR]);
1574 tcg_gen_andi_i32(s, s, 0x3f);
1575 tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]);
1576 gen_shift_reg(shl, s);
1577 tcg_temp_free(s);
1578 }
1579 break;
1580
1581 case 11: /*SRA*/
1582 gen_window_check2(dc, RRR_R, RRR_T);
1583 if (dc->sar_5bit) {
1584 tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
1585 } else {
1586 TCGv_i64 v = tcg_temp_new_i64();
1587 tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]);
1588 gen_shift(sar);
1589 }
1590 break;
1591 #undef gen_shift
1592 #undef gen_shift_reg
1593
1594 case 12: /*MUL16U*/
1595 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
1596 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1597 {
1598 TCGv_i32 v1 = tcg_temp_new_i32();
1599 TCGv_i32 v2 = tcg_temp_new_i32();
1600 tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]);
1601 tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]);
1602 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
1603 tcg_temp_free(v2);
1604 tcg_temp_free(v1);
1605 }
1606 break;
1607
1608 case 13: /*MUL16S*/
1609 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
1610 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1611 {
1612 TCGv_i32 v1 = tcg_temp_new_i32();
1613 TCGv_i32 v2 = tcg_temp_new_i32();
1614 tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]);
1615 tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]);
1616 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
1617 tcg_temp_free(v2);
1618 tcg_temp_free(v1);
1619 }
1620 break;
1621
1622 default: /*reserved*/
1623 RESERVED();
1624 break;
1625 }
1626 break;
1627
1628 case 2: /*RST2*/
1629 if (OP2 >= 8) {
1630 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1631 }
1632
1633 if (OP2 >= 12) {
1634 HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
1635 int label = gen_new_label();
1636 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label);
1637 gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE);
1638 gen_set_label(label);
1639 }
1640
1641 switch (OP2) {
1642 #define BOOLEAN_LOGIC(fn, r, s, t) \
1643 do { \
1644 HAS_OPTION(XTENSA_OPTION_BOOLEAN); \
1645 TCGv_i32 tmp1 = tcg_temp_new_i32(); \
1646 TCGv_i32 tmp2 = tcg_temp_new_i32(); \
1647 \
1648 tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \
1649 tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \
1650 tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \
1651 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \
1652 tcg_temp_free(tmp1); \
1653 tcg_temp_free(tmp2); \
1654 } while (0)
1655
1656 case 0: /*ANDBp*/
1657 BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T);
1658 break;
1659
1660 case 1: /*ANDBCp*/
1661 BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T);
1662 break;
1663
1664 case 2: /*ORBp*/
1665 BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T);
1666 break;
1667
1668 case 3: /*ORBCp*/
1669 BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T);
1670 break;
1671
1672 case 4: /*XORBp*/
1673 BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T);
1674 break;
1675
1676 #undef BOOLEAN_LOGIC
1677
1678 case 8: /*MULLi*/
1679 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
1680 tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1681 break;
1682
1683 case 10: /*MULUHi*/
1684 case 11: /*MULSHi*/
1685 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH);
1686 {
1687 TCGv lo = tcg_temp_new();
1688
1689 if (OP2 == 10) {
1690 tcg_gen_mulu2_i32(lo, cpu_R[RRR_R],
1691 cpu_R[RRR_S], cpu_R[RRR_T]);
1692 } else {
1693 tcg_gen_muls2_i32(lo, cpu_R[RRR_R],
1694 cpu_R[RRR_S], cpu_R[RRR_T]);
1695 }
1696 tcg_temp_free(lo);
1697 }
1698 break;
1699
1700 case 12: /*QUOUi*/
1701 tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1702 break;
1703
1704 case 13: /*QUOSi*/
1705 case 15: /*REMSi*/
1706 {
1707 int label1 = gen_new_label();
1708 int label2 = gen_new_label();
1709
1710 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000,
1711 label1);
1712 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff,
1713 label1);
1714 tcg_gen_movi_i32(cpu_R[RRR_R],
1715 OP2 == 13 ? 0x80000000 : 0);
1716 tcg_gen_br(label2);
1717 gen_set_label(label1);
1718 if (OP2 == 13) {
1719 tcg_gen_div_i32(cpu_R[RRR_R],
1720 cpu_R[RRR_S], cpu_R[RRR_T]);
1721 } else {
1722 tcg_gen_rem_i32(cpu_R[RRR_R],
1723 cpu_R[RRR_S], cpu_R[RRR_T]);
1724 }
1725 gen_set_label(label2);
1726 }
1727 break;
1728
1729 case 14: /*REMUi*/
1730 tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1731 break;
1732
1733 default: /*reserved*/
1734 RESERVED();
1735 break;
1736 }
1737 break;
1738
1739 case 3: /*RST3*/
1740 switch (OP2) {
1741 case 0: /*RSR*/
1742 if (gen_check_sr(dc, RSR_SR, SR_R)) {
1743 if (RSR_SR >= 64) {
1744 gen_check_privilege(dc);
1745 }
1746 gen_window_check1(dc, RRR_T);
1747 gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
1748 }
1749 break;
1750
1751 case 1: /*WSR*/
1752 if (gen_check_sr(dc, RSR_SR, SR_W)) {
1753 if (RSR_SR >= 64) {
1754 gen_check_privilege(dc);
1755 }
1756 gen_window_check1(dc, RRR_T);
1757 gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
1758 }
1759 break;
1760
1761 case 2: /*SEXTu*/
1762 HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT);
1763 gen_window_check2(dc, RRR_R, RRR_S);
1764 {
1765 int shift = 24 - RRR_T;
1766
1767 if (shift == 24) {
1768 tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
1769 } else if (shift == 16) {
1770 tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
1771 } else {
1772 TCGv_i32 tmp = tcg_temp_new_i32();
1773 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift);
1774 tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift);
1775 tcg_temp_free(tmp);
1776 }
1777 }
1778 break;
1779
1780 case 3: /*CLAMPSu*/
1781 HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS);
1782 gen_window_check2(dc, RRR_R, RRR_S);
1783 {
1784 TCGv_i32 tmp1 = tcg_temp_new_i32();
1785 TCGv_i32 tmp2 = tcg_temp_new_i32();
1786 TCGv_i32 zero = tcg_const_i32(0);
1787
1788 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T);
1789 tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]);
1790 tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7));
1791
1792 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31);
1793 tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T));
1794
1795 tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero,
1796 cpu_R[RRR_S], tmp1);
1797 tcg_temp_free(tmp1);
1798 tcg_temp_free(tmp2);
1799 tcg_temp_free(zero);
1800 }
1801 break;
1802
1803 case 4: /*MINu*/
1804 case 5: /*MAXu*/
1805 case 6: /*MINUu*/
1806 case 7: /*MAXUu*/
1807 HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX);
1808 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1809 {
1810 static const TCGCond cond[] = {
1811 TCG_COND_LE,
1812 TCG_COND_GE,
1813 TCG_COND_LEU,
1814 TCG_COND_GEU
1815 };
1816 tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R],
1817 cpu_R[RRR_S], cpu_R[RRR_T],
1818 cpu_R[RRR_S], cpu_R[RRR_T]);
1819 }
1820 break;
1821
1822 case 8: /*MOVEQZ*/
1823 case 9: /*MOVNEZ*/
1824 case 10: /*MOVLTZ*/
1825 case 11: /*MOVGEZ*/
1826 gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
1827 {
1828 static const TCGCond cond[] = {
1829 TCG_COND_EQ,
1830 TCG_COND_NE,
1831 TCG_COND_LT,
1832 TCG_COND_GE,
1833 };
1834 TCGv_i32 zero = tcg_const_i32(0);
1835
1836 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R],
1837 cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]);
1838 tcg_temp_free(zero);
1839 }
1840 break;
1841
1842 case 12: /*MOVFp*/
1843 case 13: /*MOVTp*/
1844 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1845 gen_window_check2(dc, RRR_R, RRR_S);
1846 {
1847 TCGv_i32 zero = tcg_const_i32(0);
1848 TCGv_i32 tmp = tcg_temp_new_i32();
1849
1850 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
1851 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
1852 cpu_R[RRR_R], tmp, zero,
1853 cpu_R[RRR_S], cpu_R[RRR_R]);
1854
1855 tcg_temp_free(tmp);
1856 tcg_temp_free(zero);
1857 }
1858 break;
1859
1860 case 14: /*RUR*/
1861 gen_window_check1(dc, RRR_R);
1862 {
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 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 break;
1882
1883 }
1884 break;
1885
1886 case 4: /*EXTUI*/
1887 case 5:
1888 gen_window_check2(dc, RRR_R, RRR_T);
1889 {
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 gen_window_check2(dc, RRR_S, RRR_T);
1916 gen_check_cpenable(dc, 0);
1917 {
1918 TCGv_i32 addr = tcg_temp_new_i32();
1919 tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]);
1920 gen_load_store_alignment(dc, 2, addr, false);
1921 if (OP2 & 0x4) {
1922 tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring);
1923 } else {
1924 tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring);
1925 }
1926 if (OP2 & 0x1) {
1927 tcg_gen_mov_i32(cpu_R[RRR_S], addr);
1928 }
1929 tcg_temp_free(addr);
1930 }
1931 break;
1932
1933 default: /*reserved*/
1934 RESERVED();
1935 break;
1936 }
1937 break;
1938
1939 case 9: /*LSC4*/
1940 gen_window_check2(dc, RRR_S, RRR_T);
1941 switch (OP2) {
1942 case 0: /*L32E*/
1943 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1944 gen_check_privilege(dc);
1945 {
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 gen_check_privilege(dc);
1957 {
1958 TCGv_i32 addr = tcg_temp_new_i32();
1959 tcg_gen_addi_i32(addr, cpu_R[RRR_S],
1960 (0xffffffc0 | (RRR_R << 2)));
1961 tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring);
1962 tcg_temp_free(addr);
1963 }
1964 break;
1965
1966 default:
1967 RESERVED();
1968 break;
1969 }
1970 break;
1971
1972 case 10: /*FP0*/
1973 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
1974 switch (OP2) {
1975 case 0: /*ADD.Sf*/
1976 gen_check_cpenable(dc, 0);
1977 gen_helper_add_s(cpu_FR[RRR_R], cpu_env,
1978 cpu_FR[RRR_S], cpu_FR[RRR_T]);
1979 break;
1980
1981 case 1: /*SUB.Sf*/
1982 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 break;
1986
1987 case 2: /*MUL.Sf*/
1988 gen_check_cpenable(dc, 0);
1989 gen_helper_mul_s(cpu_FR[RRR_R], cpu_env,
1990 cpu_FR[RRR_S], cpu_FR[RRR_T]);
1991 break;
1992
1993 case 4: /*MADD.Sf*/
1994 gen_check_cpenable(dc, 0);
1995 gen_helper_madd_s(cpu_FR[RRR_R], cpu_env,
1996 cpu_FR[RRR_R], cpu_FR[RRR_S], cpu_FR[RRR_T]);
1997 break;
1998
1999 case 5: /*MSUB.Sf*/
2000 gen_check_cpenable(dc, 0);
2001 gen_helper_msub_s(cpu_FR[RRR_R], cpu_env,
2002 cpu_FR[RRR_R], cpu_FR[RRR_S], cpu_FR[RRR_T]);
2003 break;
2004
2005 case 8: /*ROUND.Sf*/
2006 case 9: /*TRUNC.Sf*/
2007 case 10: /*FLOOR.Sf*/
2008 case 11: /*CEIL.Sf*/
2009 case 14: /*UTRUNC.Sf*/
2010 gen_window_check1(dc, RRR_R);
2011 gen_check_cpenable(dc, 0);
2012 {
2013 static const unsigned rounding_mode_const[] = {
2014 float_round_nearest_even,
2015 float_round_to_zero,
2016 float_round_down,
2017 float_round_up,
2018 [6] = float_round_to_zero,
2019 };
2020 TCGv_i32 rounding_mode = tcg_const_i32(
2021 rounding_mode_const[OP2 & 7]);
2022 TCGv_i32 scale = tcg_const_i32(RRR_T);
2023
2024 if (OP2 == 14) {
2025 gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S],
2026 rounding_mode, scale);
2027 } else {
2028 gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S],
2029 rounding_mode, scale);
2030 }
2031
2032 tcg_temp_free(rounding_mode);
2033 tcg_temp_free(scale);
2034 }
2035 break;
2036
2037 case 12: /*FLOAT.Sf*/
2038 case 13: /*UFLOAT.Sf*/
2039 gen_window_check1(dc, RRR_S);
2040 gen_check_cpenable(dc, 0);
2041 {
2042 TCGv_i32 scale = tcg_const_i32(-RRR_T);
2043
2044 if (OP2 == 13) {
2045 gen_helper_uitof(cpu_FR[RRR_R], cpu_env,
2046 cpu_R[RRR_S], scale);
2047 } else {
2048 gen_helper_itof(cpu_FR[RRR_R], cpu_env,
2049 cpu_R[RRR_S], scale);
2050 }
2051 tcg_temp_free(scale);
2052 }
2053 break;
2054
2055 case 15: /*FP1OP*/
2056 switch (RRR_T) {
2057 case 0: /*MOV.Sf*/
2058 gen_check_cpenable(dc, 0);
2059 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2060 break;
2061
2062 case 1: /*ABS.Sf*/
2063 gen_check_cpenable(dc, 0);
2064 gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2065 break;
2066
2067 case 4: /*RFRf*/
2068 gen_window_check1(dc, RRR_R);
2069 gen_check_cpenable(dc, 0);
2070 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]);
2071 break;
2072
2073 case 5: /*WFRf*/
2074 gen_window_check1(dc, RRR_S);
2075 gen_check_cpenable(dc, 0);
2076 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]);
2077 break;
2078
2079 case 6: /*NEG.Sf*/
2080 gen_check_cpenable(dc, 0);
2081 gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2082 break;
2083
2084 default: /*reserved*/
2085 RESERVED();
2086 break;
2087 }
2088 break;
2089
2090 default: /*reserved*/
2091 RESERVED();
2092 break;
2093 }
2094 break;
2095
2096 case 11: /*FP1*/
2097 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
2098
2099 #define gen_compare(rel, br, a, b) \
2100 do { \
2101 TCGv_i32 bit = tcg_const_i32(1 << br); \
2102 \
2103 gen_check_cpenable(dc, 0); \
2104 gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \
2105 tcg_temp_free(bit); \
2106 } while (0)
2107
2108 switch (OP2) {
2109 case 1: /*UN.Sf*/
2110 gen_compare(un_s, RRR_R, RRR_S, RRR_T);
2111 break;
2112
2113 case 2: /*OEQ.Sf*/
2114 gen_compare(oeq_s, RRR_R, RRR_S, RRR_T);
2115 break;
2116
2117 case 3: /*UEQ.Sf*/
2118 gen_compare(ueq_s, RRR_R, RRR_S, RRR_T);
2119 break;
2120
2121 case 4: /*OLT.Sf*/
2122 gen_compare(olt_s, RRR_R, RRR_S, RRR_T);
2123 break;
2124
2125 case 5: /*ULT.Sf*/
2126 gen_compare(ult_s, RRR_R, RRR_S, RRR_T);
2127 break;
2128
2129 case 6: /*OLE.Sf*/
2130 gen_compare(ole_s, RRR_R, RRR_S, RRR_T);
2131 break;
2132
2133 case 7: /*ULE.Sf*/
2134 gen_compare(ule_s, RRR_R, RRR_S, RRR_T);
2135 break;
2136
2137 #undef gen_compare
2138
2139 case 8: /*MOVEQZ.Sf*/
2140 case 9: /*MOVNEZ.Sf*/
2141 case 10: /*MOVLTZ.Sf*/
2142 case 11: /*MOVGEZ.Sf*/
2143 gen_window_check1(dc, RRR_T);
2144 gen_check_cpenable(dc, 0);
2145 {
2146 static const TCGCond cond[] = {
2147 TCG_COND_EQ,
2148 TCG_COND_NE,
2149 TCG_COND_LT,
2150 TCG_COND_GE,
2151 };
2152 TCGv_i32 zero = tcg_const_i32(0);
2153
2154 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R],
2155 cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]);
2156 tcg_temp_free(zero);
2157 }
2158 break;
2159
2160 case 12: /*MOVF.Sf*/
2161 case 13: /*MOVT.Sf*/
2162 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
2163 gen_check_cpenable(dc, 0);
2164 {
2165 TCGv_i32 zero = tcg_const_i32(0);
2166 TCGv_i32 tmp = tcg_temp_new_i32();
2167
2168 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
2169 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
2170 cpu_FR[RRR_R], tmp, zero,
2171 cpu_FR[RRR_S], cpu_FR[RRR_R]);
2172
2173 tcg_temp_free(tmp);
2174 tcg_temp_free(zero);
2175 }
2176 break;
2177
2178 default: /*reserved*/
2179 RESERVED();
2180 break;
2181 }
2182 break;
2183
2184 default: /*reserved*/
2185 RESERVED();
2186 break;
2187 }
2188 break;
2189
2190 case 1: /*L32R*/
2191 gen_window_check1(dc, RRR_T);
2192 {
2193 TCGv_i32 tmp = tcg_const_i32(
2194 ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ?
2195 0 : ((dc->pc + 3) & ~3)) +
2196 (0xfffc0000 | (RI16_IMM16 << 2)));
2197
2198 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
2199 tcg_gen_add_i32(tmp, tmp, dc->litbase);
2200 }
2201 tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring);
2202 tcg_temp_free(tmp);
2203 }
2204 break;
2205
2206 case 2: /*LSAI*/
2207 #define gen_load_store(type, shift) do { \
2208 TCGv_i32 addr = tcg_temp_new_i32(); \
2209 gen_window_check2(dc, RRI8_S, RRI8_T); \
2210 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \
2211 if (shift) { \
2212 gen_load_store_alignment(dc, shift, addr, false); \
2213 } \
2214 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
2215 tcg_temp_free(addr); \
2216 } while (0)
2217
2218 switch (RRI8_R) {
2219 case 0: /*L8UI*/
2220 gen_load_store(ld8u, 0);
2221 break;
2222
2223 case 1: /*L16UI*/
2224 gen_load_store(ld16u, 1);
2225 break;
2226
2227 case 2: /*L32I*/
2228 gen_load_store(ld32u, 2);
2229 break;
2230
2231 case 4: /*S8I*/
2232 gen_load_store(st8, 0);
2233 break;
2234
2235 case 5: /*S16I*/
2236 gen_load_store(st16, 1);
2237 break;
2238
2239 case 6: /*S32I*/
2240 gen_load_store(st32, 2);
2241 break;
2242
2243 #define gen_dcache_hit_test(w, shift) do { \
2244 TCGv_i32 addr = tcg_temp_new_i32(); \
2245 TCGv_i32 res = tcg_temp_new_i32(); \
2246 gen_window_check1(dc, RRI##w##_S); \
2247 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
2248 RRI##w##_IMM##w << shift); \
2249 tcg_gen_qemu_ld8u(res, addr, dc->cring); \
2250 tcg_temp_free(addr); \
2251 tcg_temp_free(res); \
2252 } while (0)
2253
2254 #define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4)
2255 #define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2)
2256
2257 case 7: /*CACHEc*/
2258 if (RRI8_T < 8) {
2259 HAS_OPTION(XTENSA_OPTION_DCACHE);
2260 }
2261
2262 switch (RRI8_T) {
2263 case 0: /*DPFRc*/
2264 gen_window_check1(dc, RRI8_S);
2265 break;
2266
2267 case 1: /*DPFWc*/
2268 gen_window_check1(dc, RRI8_S);
2269 break;
2270
2271 case 2: /*DPFROc*/
2272 gen_window_check1(dc, RRI8_S);
2273 break;
2274
2275 case 3: /*DPFWOc*/
2276 gen_window_check1(dc, RRI8_S);
2277 break;
2278
2279 case 4: /*DHWBc*/
2280 gen_dcache_hit_test8();
2281 break;
2282
2283 case 5: /*DHWBIc*/
2284 gen_dcache_hit_test8();
2285 break;
2286
2287 case 6: /*DHIc*/
2288 gen_check_privilege(dc);
2289 gen_dcache_hit_test8();
2290 break;
2291
2292 case 7: /*DIIc*/
2293 gen_check_privilege(dc);
2294 gen_window_check1(dc, RRI8_S);
2295 break;
2296
2297 case 8: /*DCEc*/
2298 switch (OP1) {
2299 case 0: /*DPFLl*/
2300 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2301 gen_check_privilege(dc);
2302 gen_dcache_hit_test4();
2303 break;
2304
2305 case 2: /*DHUl*/
2306 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2307 gen_check_privilege(dc);
2308 gen_dcache_hit_test4();
2309 break;
2310
2311 case 3: /*DIUl*/
2312 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2313 gen_check_privilege(dc);
2314 gen_window_check1(dc, RRI4_S);
2315 break;
2316
2317 case 4: /*DIWBc*/
2318 HAS_OPTION(XTENSA_OPTION_DCACHE);
2319 gen_check_privilege(dc);
2320 gen_window_check1(dc, RRI4_S);
2321 break;
2322
2323 case 5: /*DIWBIc*/
2324 HAS_OPTION(XTENSA_OPTION_DCACHE);
2325 gen_check_privilege(dc);
2326 gen_window_check1(dc, RRI4_S);
2327 break;
2328
2329 default: /*reserved*/
2330 RESERVED();
2331 break;
2332
2333 }
2334 break;
2335
2336 #undef gen_dcache_hit_test
2337 #undef gen_dcache_hit_test4
2338 #undef gen_dcache_hit_test8
2339
2340 #define gen_icache_hit_test(w, shift) do { \
2341 TCGv_i32 addr = tcg_temp_new_i32(); \
2342 gen_window_check1(dc, RRI##w##_S); \
2343 tcg_gen_movi_i32(cpu_pc, dc->pc); \
2344 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
2345 RRI##w##_IMM##w << shift); \
2346 gen_helper_itlb_hit_test(cpu_env, addr); \
2347 tcg_temp_free(addr); \
2348 } while (0)
2349
2350 #define gen_icache_hit_test4() gen_icache_hit_test(4, 4)
2351 #define gen_icache_hit_test8() gen_icache_hit_test(8, 2)
2352
2353 case 12: /*IPFc*/
2354 HAS_OPTION(XTENSA_OPTION_ICACHE);
2355 gen_window_check1(dc, RRI8_S);
2356 break;
2357
2358 case 13: /*ICEc*/
2359 switch (OP1) {
2360 case 0: /*IPFLl*/
2361 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2362 gen_check_privilege(dc);
2363 gen_icache_hit_test4();
2364 break;
2365
2366 case 2: /*IHUl*/
2367 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2368 gen_check_privilege(dc);
2369 gen_icache_hit_test4();
2370 break;
2371
2372 case 3: /*IIUl*/
2373 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2374 gen_check_privilege(dc);
2375 gen_window_check1(dc, RRI4_S);
2376 break;
2377
2378 default: /*reserved*/
2379 RESERVED();
2380 break;
2381 }
2382 break;
2383
2384 case 14: /*IHIc*/
2385 HAS_OPTION(XTENSA_OPTION_ICACHE);
2386 gen_icache_hit_test8();
2387 break;
2388
2389 case 15: /*IIIc*/
2390 HAS_OPTION(XTENSA_OPTION_ICACHE);
2391 gen_check_privilege(dc);
2392 gen_window_check1(dc, RRI8_S);
2393 break;
2394
2395 default: /*reserved*/
2396 RESERVED();
2397 break;
2398 }
2399 break;
2400
2401 #undef gen_icache_hit_test
2402 #undef gen_icache_hit_test4
2403 #undef gen_icache_hit_test8
2404
2405 case 9: /*L16SI*/
2406 gen_load_store(ld16s, 1);
2407 break;
2408 #undef gen_load_store
2409
2410 case 10: /*MOVI*/
2411 gen_window_check1(dc, RRI8_T);
2412 tcg_gen_movi_i32(cpu_R[RRI8_T],
2413 RRI8_IMM8 | (RRI8_S << 8) |
2414 ((RRI8_S & 0x8) ? 0xfffff000 : 0));
2415 break;
2416
2417 #define gen_load_store_no_hw_align(type) do { \
2418 TCGv_i32 addr = tcg_temp_local_new_i32(); \
2419 gen_window_check2(dc, RRI8_S, RRI8_T); \
2420 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \
2421 gen_load_store_alignment(dc, 2, addr, true); \
2422 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
2423 tcg_temp_free(addr); \
2424 } while (0)
2425
2426 case 11: /*L32AIy*/
2427 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
2428 gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/
2429 break;
2430
2431 case 12: /*ADDI*/
2432 gen_window_check2(dc, RRI8_S, RRI8_T);
2433 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);
2434 break;
2435
2436 case 13: /*ADDMI*/
2437 gen_window_check2(dc, RRI8_S, RRI8_T);
2438 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8);
2439 break;
2440
2441 case 14: /*S32C1Iy*/
2442 HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE);
2443 gen_window_check2(dc, RRI8_S, RRI8_T);
2444 {
2445 int label = gen_new_label();
2446 TCGv_i32 tmp = tcg_temp_local_new_i32();
2447 TCGv_i32 addr = tcg_temp_local_new_i32();
2448 TCGv_i32 tpc;
2449
2450 tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]);
2451 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
2452 gen_load_store_alignment(dc, 2, addr, true);
2453
2454 gen_advance_ccount(dc);
2455 tpc = tcg_const_i32(dc->pc);
2456 gen_helper_check_atomctl(cpu_env, tpc, addr);
2457 tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring);
2458 tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T],
2459 cpu_SR[SCOMPARE1], label);
2460
2461 tcg_gen_qemu_st32(tmp, addr, dc->cring);
2462
2463 gen_set_label(label);
2464 tcg_temp_free(tpc);
2465 tcg_temp_free(addr);
2466 tcg_temp_free(tmp);
2467 }
2468 break;
2469
2470 case 15: /*S32RIy*/
2471 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
2472 gen_load_store_no_hw_align(st32); /*TODO release?*/
2473 break;
2474 #undef gen_load_store_no_hw_align
2475
2476 default: /*reserved*/
2477 RESERVED();
2478 break;
2479 }
2480 break;
2481
2482 case 3: /*LSCIp*/
2483 switch (RRI8_R) {
2484 case 0: /*LSIf*/
2485 case 4: /*SSIf*/
2486 case 8: /*LSIUf*/
2487 case 12: /*SSIUf*/
2488 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
2489 gen_window_check1(dc, RRI8_S);
2490 gen_check_cpenable(dc, 0);
2491 {
2492 TCGv_i32 addr = tcg_temp_new_i32();
2493 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
2494 gen_load_store_alignment(dc, 2, addr, false);
2495 if (RRI8_R & 0x4) {
2496 tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring);
2497 } else {
2498 tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring);
2499 }
2500 if (RRI8_R & 0x8) {
2501 tcg_gen_mov_i32(cpu_R[RRI8_S], addr);
2502 }
2503 tcg_temp_free(addr);
2504 }
2505 break;
2506
2507 default: /*reserved*/
2508 RESERVED();
2509 break;
2510 }
2511 break;
2512
2513 case 4: /*MAC16d*/
2514 HAS_OPTION(XTENSA_OPTION_MAC16);
2515 {
2516 enum {
2517 MAC16_UMUL = 0x0,
2518 MAC16_MUL = 0x4,
2519 MAC16_MULA = 0x8,
2520 MAC16_MULS = 0xc,
2521 MAC16_NONE = 0xf,
2522 } op = OP1 & 0xc;
2523 bool is_m1_sr = (OP2 & 0x3) == 2;
2524 bool is_m2_sr = (OP2 & 0xc) == 0;
2525 uint32_t ld_offset = 0;
2526
2527 if (OP2 > 9) {
2528 RESERVED();
2529 }
2530
2531 switch (OP2 & 2) {
2532 case 0: /*MACI?/MACC?*/
2533 is_m1_sr = true;
2534 ld_offset = (OP2 & 1) ? -4 : 4;
2535
2536 if (OP2 >= 8) { /*MACI/MACC*/
2537 if (OP1 == 0) { /*LDINC/LDDEC*/
2538 op = MAC16_NONE;
2539 } else {
2540 RESERVED();
2541 }
2542 } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/
2543 RESERVED();
2544 }
2545 break;
2546
2547 case 2: /*MACD?/MACA?*/
2548 if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/
2549 RESERVED();
2550 }
2551 break;
2552 }
2553
2554 if (op != MAC16_NONE) {
2555 if (!is_m1_sr) {
2556 gen_window_check1(dc, RRR_S);
2557 }
2558 if (!is_m2_sr) {
2559 gen_window_check1(dc, RRR_T);
2560 }
2561 }
2562
2563 {
2564 TCGv_i32 vaddr = tcg_temp_new_i32();
2565 TCGv_i32 mem32 = tcg_temp_new_i32();
2566
2567 if (ld_offset) {
2568 gen_window_check1(dc, RRR_S);
2569 tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset);
2570 gen_load_store_alignment(dc, 2, vaddr, false);
2571 tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring);
2572 }
2573 if (op != MAC16_NONE) {
2574 TCGv_i32 m1 = gen_mac16_m(
2575 is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S],
2576 OP1 & 1, op == MAC16_UMUL);
2577 TCGv_i32 m2 = gen_mac16_m(
2578 is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T],
2579 OP1 & 2, op == MAC16_UMUL);
2580
2581 if (op == MAC16_MUL || op == MAC16_UMUL) {
2582 tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2);
2583 if (op == MAC16_UMUL) {
2584 tcg_gen_movi_i32(cpu_SR[ACCHI], 0);
2585 } else {
2586 tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31);
2587 }
2588 } else {
2589 TCGv_i32 lo = tcg_temp_new_i32();
2590 TCGv_i32 hi = tcg_temp_new_i32();
2591
2592 tcg_gen_mul_i32(lo, m1, m2);
2593 tcg_gen_sari_i32(hi, lo, 31);
2594 if (op == MAC16_MULA) {
2595 tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
2596 cpu_SR[ACCLO], cpu_SR[ACCHI],
2597 lo, hi);
2598 } else {
2599 tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
2600 cpu_SR[ACCLO], cpu_SR[ACCHI],
2601 lo, hi);
2602 }
2603 tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]);
2604
2605 tcg_temp_free_i32(lo);
2606 tcg_temp_free_i32(hi);
2607 }
2608 tcg_temp_free(m1);
2609 tcg_temp_free(m2);
2610 }
2611 if (ld_offset) {
2612 tcg_gen_mov_i32(cpu_R[RRR_S], vaddr);
2613 tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32);
2614 }
2615 tcg_temp_free(vaddr);
2616 tcg_temp_free(mem32);
2617 }
2618 }
2619 break;
2620
2621 case 5: /*CALLN*/
2622 switch (CALL_N) {
2623 case 0: /*CALL0*/
2624 tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
2625 gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
2626 break;
2627
2628 case 1: /*CALL4w*/
2629 case 2: /*CALL8w*/
2630 case 3: /*CALL12w*/
2631 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2632 gen_window_check1(dc, CALL_N << 2);
2633 gen_callwi(dc, CALL_N,
2634 (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
2635 break;
2636 }
2637 break;
2638
2639 case 6: /*SI*/
2640 switch (CALL_N) {
2641 case 0: /*J*/
2642 gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0);
2643 break;
2644
2645 case 1: /*BZ*/
2646 gen_window_check1(dc, BRI12_S);
2647 {
2648 static const TCGCond cond[] = {
2649 TCG_COND_EQ, /*BEQZ*/
2650 TCG_COND_NE, /*BNEZ*/
2651 TCG_COND_LT, /*BLTZ*/
2652 TCG_COND_GE, /*BGEZ*/
2653 };
2654
2655 gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0,
2656 4 + BRI12_IMM12_SE);
2657 }
2658 break;
2659
2660 case 2: /*BI0*/
2661 gen_window_check1(dc, BRI8_S);
2662 {
2663 static const TCGCond cond[] = {
2664 TCG_COND_EQ, /*BEQI*/
2665 TCG_COND_NE, /*BNEI*/
2666 TCG_COND_LT, /*BLTI*/
2667 TCG_COND_GE, /*BGEI*/
2668 };
2669
2670 gen_brcondi(dc, cond[BRI8_M & 3],
2671 cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE);
2672 }
2673 break;
2674
2675 case 3: /*BI1*/
2676 switch (BRI8_M) {
2677 case 0: /*ENTRYw*/
2678 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2679 {
2680 TCGv_i32 pc = tcg_const_i32(dc->pc);
2681 TCGv_i32 s = tcg_const_i32(BRI12_S);
2682 TCGv_i32 imm = tcg_const_i32(BRI12_IMM12);
2683 gen_advance_ccount(dc);
2684 gen_helper_entry(cpu_env, pc, s, imm);
2685 tcg_temp_free(imm);
2686 tcg_temp_free(s);
2687 tcg_temp_free(pc);
2688 reset_used_window(dc);
2689 }
2690 break;
2691
2692 case 1: /*B1*/
2693 switch (BRI8_R) {
2694 case 0: /*BFp*/
2695 case 1: /*BTp*/
2696 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
2697 {
2698 TCGv_i32 tmp = tcg_temp_new_i32();
2699 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S);
2700 gen_brcondi(dc,
2701 BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ,
2702 tmp, 0, 4 + RRI8_IMM8_SE);
2703 tcg_temp_free(tmp);
2704 }
2705 break;
2706
2707 case 8: /*LOOP*/
2708 case 9: /*LOOPNEZ*/
2709 case 10: /*LOOPGTZ*/
2710 HAS_OPTION(XTENSA_OPTION_LOOP);
2711 gen_window_check1(dc, RRI8_S);
2712 {
2713 uint32_t lend = dc->pc + RRI8_IMM8 + 4;
2714 TCGv_i32 tmp = tcg_const_i32(lend);
2715
2716 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
2717 tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc);
2718 gen_helper_wsr_lend(cpu_env, tmp);
2719 tcg_temp_free(tmp);
2720
2721 if (BRI8_R > 8) {
2722 int label = gen_new_label();
2723 tcg_gen_brcondi_i32(
2724 BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT,
2725 cpu_R[RRI8_S], 0, label);
2726 gen_jumpi(dc, lend, 1);
2727 gen_set_label(label);
2728 }
2729
2730 gen_jumpi(dc, dc->next_pc, 0);
2731 }
2732 break;
2733
2734 default: /*reserved*/
2735 RESERVED();
2736 break;
2737
2738 }
2739 break;
2740
2741 case 2: /*BLTUI*/
2742 case 3: /*BGEUI*/
2743 gen_window_check1(dc, BRI8_S);
2744 gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,
2745 cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE);
2746 break;
2747 }
2748 break;
2749
2750 }
2751 break;
2752
2753 case 7: /*B*/
2754 {
2755 TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ;
2756
2757 switch (RRI8_R & 7) {
2758 case 0: /*BNONE*/ /*BANY*/
2759 gen_window_check2(dc, RRI8_S, RRI8_T);
2760 {
2761 TCGv_i32 tmp = tcg_temp_new_i32();
2762 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
2763 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2764 tcg_temp_free(tmp);
2765 }
2766 break;
2767
2768 case 1: /*BEQ*/ /*BNE*/
2769 case 2: /*BLT*/ /*BGE*/
2770 case 3: /*BLTU*/ /*BGEU*/
2771 gen_window_check2(dc, RRI8_S, RRI8_T);
2772 {
2773 static const TCGCond cond[] = {
2774 [1] = TCG_COND_EQ,
2775 [2] = TCG_COND_LT,
2776 [3] = TCG_COND_LTU,
2777 [9] = TCG_COND_NE,
2778 [10] = TCG_COND_GE,
2779 [11] = TCG_COND_GEU,
2780 };
2781 gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T],
2782 4 + RRI8_IMM8_SE);
2783 }
2784 break;
2785
2786 case 4: /*BALL*/ /*BNALL*/
2787 gen_window_check2(dc, RRI8_S, RRI8_T);
2788 {
2789 TCGv_i32 tmp = tcg_temp_new_i32();
2790 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
2791 gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T],
2792 4 + RRI8_IMM8_SE);
2793 tcg_temp_free(tmp);
2794 }
2795 break;
2796
2797 case 5: /*BBC*/ /*BBS*/
2798 gen_window_check2(dc, RRI8_S, RRI8_T);
2799 {
2800 #ifdef TARGET_WORDS_BIGENDIAN
2801 TCGv_i32 bit = tcg_const_i32(0x80000000);
2802 #else
2803 TCGv_i32 bit = tcg_const_i32(0x00000001);
2804 #endif
2805 TCGv_i32 tmp = tcg_temp_new_i32();
2806 tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);
2807 #ifdef TARGET_WORDS_BIGENDIAN
2808 tcg_gen_shr_i32(bit, bit, tmp);
2809 #else
2810 tcg_gen_shl_i32(bit, bit, tmp);
2811 #endif
2812 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit);
2813 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2814 tcg_temp_free(tmp);
2815 tcg_temp_free(bit);
2816 }
2817 break;
2818
2819 case 6: /*BBCI*/ /*BBSI*/
2820 case 7:
2821 gen_window_check1(dc, RRI8_S);
2822 {
2823 TCGv_i32 tmp = tcg_temp_new_i32();
2824 tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],
2825 #ifdef TARGET_WORDS_BIGENDIAN
2826 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T));
2827 #else
2828 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T));
2829 #endif
2830 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2831 tcg_temp_free(tmp);
2832 }
2833 break;
2834
2835 }
2836 }
2837 break;
2838
2839 #define gen_narrow_load_store(type) do { \
2840 TCGv_i32 addr = tcg_temp_new_i32(); \
2841 gen_window_check2(dc, RRRN_S, RRRN_T); \
2842 tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
2843 gen_load_store_alignment(dc, 2, addr, false); \
2844 tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \
2845 tcg_temp_free(addr); \
2846 } while (0)
2847
2848 case 8: /*L32I.Nn*/
2849 gen_narrow_load_store(ld32u);
2850 break;
2851
2852 case 9: /*S32I.Nn*/
2853 gen_narrow_load_store(st32);
2854 break;
2855 #undef gen_narrow_load_store
2856
2857 case 10: /*ADD.Nn*/
2858 gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T);
2859 tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]);
2860 break;
2861
2862 case 11: /*ADDI.Nn*/
2863 gen_window_check2(dc, RRRN_R, RRRN_S);
2864 tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1);
2865 break;
2866
2867 case 12: /*ST2n*/
2868 gen_window_check1(dc, RRRN_S);
2869 if (RRRN_T < 8) { /*MOVI.Nn*/
2870 tcg_gen_movi_i32(cpu_R[RRRN_S],
2871 RRRN_R | (RRRN_T << 4) |
2872 ((RRRN_T & 6) == 6 ? 0xffffff80 : 0));
2873 } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/
2874 TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ;
2875
2876 gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0,
2877 4 + (RRRN_R | ((RRRN_T & 3) << 4)));
2878 }
2879 break;
2880
2881 case 13: /*ST3n*/
2882 switch (RRRN_R) {
2883 case 0: /*MOV.Nn*/
2884 gen_window_check2(dc, RRRN_S, RRRN_T);
2885 tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]);
2886 break;
2887
2888 case 15: /*S3*/
2889 switch (RRRN_T) {
2890 case 0: /*RET.Nn*/
2891 gen_jump(dc, cpu_R[0]);
2892 break;
2893
2894 case 1: /*RETW.Nn*/
2895 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2896 {
2897 TCGv_i32 tmp = tcg_const_i32(dc->pc);
2898 gen_advance_ccount(dc);
2899 gen_helper_retw(tmp, cpu_env, tmp);
2900 gen_jump(dc, tmp);
2901 tcg_temp_free(tmp);
2902 }
2903 break;
2904
2905 case 2: /*BREAK.Nn*/
2906 HAS_OPTION(XTENSA_OPTION_DEBUG);
2907 if (dc->debug) {
2908 gen_debug_exception(dc, DEBUGCAUSE_BN);
2909 }
2910 break;
2911
2912 case 3: /*NOP.Nn*/
2913 break;
2914
2915 case 6: /*ILL.Nn*/
2916 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
2917 break;
2918
2919 default: /*reserved*/
2920 RESERVED();
2921 break;
2922 }
2923 break;
2924
2925 default: /*reserved*/
2926 RESERVED();
2927 break;
2928 }
2929 break;
2930
2931 default: /*reserved*/
2932 RESERVED();
2933 break;
2934 }
2935
2936 if (dc->is_jmp == DISAS_NEXT) {
2937 gen_check_loop_end(dc, 0);
2938 }
2939 dc->pc = dc->next_pc;
2940
2941 return;
2942
2943 invalid_opcode:
2944 qemu_log("INVALID(pc = %08x)\n", dc->pc);
2945 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
2946 #undef HAS_OPTION
2947 }
2948
2949 static void check_breakpoint(CPUXtensaState *env, DisasContext *dc)
2950 {
2951 CPUState *cs = CPU(xtensa_env_get_cpu(env));
2952 CPUBreakpoint *bp;
2953
2954 if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
2955 QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
2956 if (bp->pc == dc->pc) {
2957 tcg_gen_movi_i32(cpu_pc, dc->pc);
2958 gen_exception(dc, EXCP_DEBUG);
2959 dc->is_jmp = DISAS_UPDATE;
2960 }
2961 }
2962 }
2963 }
2964
2965 static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc)
2966 {
2967 unsigned i;
2968
2969 for (i = 0; i < dc->config->nibreak; ++i) {
2970 if ((env->sregs[IBREAKENABLE] & (1 << i)) &&
2971 env->sregs[IBREAKA + i] == dc->pc) {
2972 gen_debug_exception(dc, DEBUGCAUSE_IB);
2973 break;
2974 }
2975 }
2976 }
2977
2978 static inline
2979 void gen_intermediate_code_internal(XtensaCPU *cpu,
2980 TranslationBlock *tb, bool search_pc)
2981 {
2982 CPUState *cs = CPU(cpu);
2983 CPUXtensaState *env = &cpu->env;
2984 DisasContext dc;
2985 int insn_count = 0;
2986 int j, lj = -1;
2987 uint16_t *gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
2988 int max_insns = tb->cflags & CF_COUNT_MASK;
2989 uint32_t pc_start = tb->pc;
2990 uint32_t next_page_start =
2991 (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
2992
2993 if (max_insns == 0) {
2994 max_insns = CF_COUNT_MASK;
2995 }
2996
2997 dc.config = env->config;
2998 dc.singlestep_enabled = cs->singlestep_enabled;
2999 dc.tb = tb;
3000 dc.pc = pc_start;
3001 dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK;
3002 dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring;
3003 dc.lbeg = env->sregs[LBEG];
3004 dc.lend = env->sregs[LEND];
3005 dc.is_jmp = DISAS_NEXT;
3006 dc.ccount_delta = 0;
3007 dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG;
3008 dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT;
3009 dc.cpenable = (tb->flags & XTENSA_TBFLAG_CPENABLE_MASK) >>
3010 XTENSA_TBFLAG_CPENABLE_SHIFT;
3011
3012 init_litbase(&dc);
3013 init_sar_tracker(&dc);
3014 reset_used_window(&dc);
3015 if (dc.icount) {
3016 dc.next_icount = tcg_temp_local_new_i32();
3017 }
3018
3019 gen_tb_start();
3020
3021 if (tb->flags & XTENSA_TBFLAG_EXCEPTION) {
3022 tcg_gen_movi_i32(cpu_pc, dc.pc);
3023 gen_exception(&dc, EXCP_DEBUG);
3024 }
3025
3026 do {
3027 check_breakpoint(env, &dc);
3028
3029 if (search_pc) {
3030 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
3031 if (lj < j) {
3032 lj++;
3033 while (lj < j) {
3034 tcg_ctx.gen_opc_instr_start[lj++] = 0;
3035 }
3036 }
3037 tcg_ctx.gen_opc_pc[lj] = dc.pc;
3038 tcg_ctx.gen_opc_instr_start[lj] = 1;
3039 tcg_ctx.gen_opc_icount[lj] = insn_count;
3040 }
3041
3042 if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
3043 tcg_gen_debug_insn_start(dc.pc);
3044 }
3045
3046 ++dc.ccount_delta;
3047
3048 if (insn_count + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
3049 gen_io_start();
3050 }
3051
3052 if (dc.icount) {
3053 int label = gen_new_label();
3054
3055 tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1);
3056 tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label);
3057 tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]);
3058 if (dc.debug) {
3059 gen_debug_exception(&dc, DEBUGCAUSE_IC);
3060 }
3061 gen_set_label(label);
3062 }
3063
3064 if (dc.debug) {
3065 gen_ibreak_check(env, &dc);
3066 }
3067
3068 disas_xtensa_insn(env, &dc);
3069 ++insn_count;
3070 if (dc.icount) {
3071 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount);
3072 }
3073 if (cs->singlestep_enabled) {
3074 tcg_gen_movi_i32(cpu_pc, dc.pc);
3075 gen_exception(&dc, EXCP_DEBUG);
3076 break;
3077 }
3078 } while (dc.is_jmp == DISAS_NEXT &&
3079 insn_count < max_insns &&
3080 dc.pc < next_page_start &&
3081 tcg_ctx.gen_opc_ptr < gen_opc_end);
3082
3083 reset_litbase(&dc);
3084 reset_sar_tracker(&dc);
3085 if (dc.icount) {
3086 tcg_temp_free(dc.next_icount);
3087 }
3088
3089 if (tb->cflags & CF_LAST_IO) {
3090 gen_io_end();
3091 }
3092
3093 if (dc.is_jmp == DISAS_NEXT) {
3094 gen_jumpi(&dc, dc.pc, 0);
3095 }
3096 gen_tb_end(tb, insn_count);
3097 *tcg_ctx.gen_opc_ptr = INDEX_op_end;
3098
3099 #ifdef DEBUG_DISAS
3100 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
3101 qemu_log("----------------\n");
3102 qemu_log("IN: %s\n", lookup_symbol(pc_start));
3103 log_target_disas(env, pc_start, dc.pc - pc_start, 0);
3104 qemu_log("\n");
3105 }
3106 #endif
3107 if (search_pc) {
3108 j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
3109 memset(tcg_ctx.gen_opc_instr_start + lj + 1, 0,
3110 (j - lj) * sizeof(tcg_ctx.gen_opc_instr_start[0]));
3111 } else {
3112 tb->size = dc.pc - pc_start;
3113 tb->icount = insn_count;
3114 }
3115 }
3116
3117 void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb)
3118 {
3119 gen_intermediate_code_internal(xtensa_env_get_cpu(env), tb, false);
3120 }
3121
3122 void gen_intermediate_code_pc(CPUXtensaState *env, TranslationBlock *tb)
3123 {
3124 gen_intermediate_code_internal(xtensa_env_get_cpu(env), tb, true);
3125 }
3126
3127 void xtensa_cpu_dump_state(CPUState *cs, FILE *f,
3128 fprintf_function cpu_fprintf, int flags)
3129 {
3130 XtensaCPU *cpu = XTENSA_CPU(cs);
3131 CPUXtensaState *env = &cpu->env;
3132 int i, j;
3133
3134 cpu_fprintf(f, "PC=%08x\n\n", env->pc);
3135
3136 for (i = j = 0; i < 256; ++i) {
3137 if (xtensa_option_bits_enabled(env->config, sregnames[i].opt_bits)) {
3138 cpu_fprintf(f, "%12s=%08x%c", sregnames[i].name, env->sregs[i],
3139 (j++ % 4) == 3 ? '\n' : ' ');
3140 }
3141 }
3142
3143 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
3144
3145 for (i = j = 0; i < 256; ++i) {
3146 if (xtensa_option_bits_enabled(env->config, uregnames[i].opt_bits)) {
3147 cpu_fprintf(f, "%s=%08x%c", uregnames[i].name, env->uregs[i],
3148 (j++ % 4) == 3 ? '\n' : ' ');
3149 }
3150 }
3151
3152 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
3153
3154 for (i = 0; i < 16; ++i) {
3155 cpu_fprintf(f, " A%02d=%08x%c", i, env->regs[i],
3156 (i % 4) == 3 ? '\n' : ' ');
3157 }
3158
3159 cpu_fprintf(f, "\n");
3160
3161 for (i = 0; i < env->config->nareg; ++i) {
3162 cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i],
3163 (i % 4) == 3 ? '\n' : ' ');
3164 }
3165
3166 if (xtensa_option_enabled(env->config, XTENSA_OPTION_FP_COPROCESSOR)) {
3167 cpu_fprintf(f, "\n");
3168
3169 for (i = 0; i < 16; ++i) {
3170 cpu_fprintf(f, "F%02d=%08x (%+10.8e)%c", i,
3171 float32_val(env->fregs[i]),
3172 *(float *)&env->fregs[i], (i % 2) == 1 ? '\n' : ' ');
3173 }
3174 }
3175 }
3176
3177 void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, int pc_pos)
3178 {
3179 env->pc = tcg_ctx.gen_opc_pc[pc_pos];
3180 }
AR7 emulation for QEMU