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ES1370: QOMify
[qemu/ar7.git] / target-xtensa / translate.c
blobfd03603e3553ab52a53441dd425bbc01cfce6140
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 "qemu/osdep.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 #include "exec/semihost.h"
41
42 #include "exec/helper-proto.h"
43 #include "exec/helper-gen.h"
44
45 #include "trace-tcg.h"
46 #include "exec/log.h"
47
48
49 typedef struct DisasContext {
50 const XtensaConfig *config;
51 TranslationBlock *tb;
52 uint32_t pc;
53 uint32_t next_pc;
54 int cring;
55 int ring;
56 uint32_t lbeg;
57 uint32_t lend;
58 TCGv_i32 litbase;
59 int is_jmp;
60 int singlestep_enabled;
61
62 bool sar_5bit;
63 bool sar_m32_5bit;
64 bool sar_m32_allocated;
65 TCGv_i32 sar_m32;
66
67 uint32_t ccount_delta;
68 unsigned window;
69
70 bool debug;
71 bool icount;
72 TCGv_i32 next_icount;
73
74 unsigned cpenable;
75 } DisasContext;
76
77 static TCGv_ptr cpu_env;
78 static TCGv_i32 cpu_pc;
79 static TCGv_i32 cpu_R[16];
80 static TCGv_i32 cpu_FR[16];
81 static TCGv_i32 cpu_SR[256];
82 static TCGv_i32 cpu_UR[256];
83
84 #include "exec/gen-icount.h"
85
86 typedef struct XtensaReg {
87 const char *name;
88 uint64_t opt_bits;
89 enum {
90 SR_R = 1,
91 SR_W = 2,
92 SR_X = 4,
93 SR_RW = 3,
94 SR_RWX = 7,
95 } access;
96 } XtensaReg;
97
98 #define XTENSA_REG_ACCESS(regname, opt, acc) { \
99 .name = (regname), \
100 .opt_bits = XTENSA_OPTION_BIT(opt), \
101 .access = (acc), \
102 }
103
104 #define XTENSA_REG(regname, opt) XTENSA_REG_ACCESS(regname, opt, SR_RWX)
105
106 #define XTENSA_REG_BITS_ACCESS(regname, opt, acc) { \
107 .name = (regname), \
108 .opt_bits = (opt), \
109 .access = (acc), \
110 }
111
112 #define XTENSA_REG_BITS(regname, opt) \
113 XTENSA_REG_BITS_ACCESS(regname, opt, SR_RWX)
114
115 static const XtensaReg sregnames[256] = {
116 [LBEG] = XTENSA_REG("LBEG", XTENSA_OPTION_LOOP),
117 [LEND] = XTENSA_REG("LEND", XTENSA_OPTION_LOOP),
118 [LCOUNT] = XTENSA_REG("LCOUNT", XTENSA_OPTION_LOOP),
119 [SAR] = XTENSA_REG_BITS("SAR", XTENSA_OPTION_ALL),
120 [BR] = XTENSA_REG("BR", XTENSA_OPTION_BOOLEAN),
121 [LITBASE] = XTENSA_REG("LITBASE", XTENSA_OPTION_EXTENDED_L32R),
122 [SCOMPARE1] = XTENSA_REG("SCOMPARE1", XTENSA_OPTION_CONDITIONAL_STORE),
123 [ACCLO] = XTENSA_REG("ACCLO", XTENSA_OPTION_MAC16),
124 [ACCHI] = XTENSA_REG("ACCHI", XTENSA_OPTION_MAC16),
125 [MR] = XTENSA_REG("MR0", XTENSA_OPTION_MAC16),
126 [MR + 1] = XTENSA_REG("MR1", XTENSA_OPTION_MAC16),
127 [MR + 2] = XTENSA_REG("MR2", XTENSA_OPTION_MAC16),
128 [MR + 3] = XTENSA_REG("MR3", XTENSA_OPTION_MAC16),
129 [WINDOW_BASE] = XTENSA_REG("WINDOW_BASE", XTENSA_OPTION_WINDOWED_REGISTER),
130 [WINDOW_START] = XTENSA_REG("WINDOW_START",
131 XTENSA_OPTION_WINDOWED_REGISTER),
132 [PTEVADDR] = XTENSA_REG("PTEVADDR", XTENSA_OPTION_MMU),
133 [RASID] = XTENSA_REG("RASID", XTENSA_OPTION_MMU),
134 [ITLBCFG] = XTENSA_REG("ITLBCFG", XTENSA_OPTION_MMU),
135 [DTLBCFG] = XTENSA_REG("DTLBCFG", XTENSA_OPTION_MMU),
136 [IBREAKENABLE] = XTENSA_REG("IBREAKENABLE", XTENSA_OPTION_DEBUG),
137 [CACHEATTR] = XTENSA_REG("CACHEATTR", XTENSA_OPTION_CACHEATTR),
138 [ATOMCTL] = XTENSA_REG("ATOMCTL", XTENSA_OPTION_ATOMCTL),
139 [IBREAKA] = XTENSA_REG("IBREAKA0", XTENSA_OPTION_DEBUG),
140 [IBREAKA + 1] = XTENSA_REG("IBREAKA1", XTENSA_OPTION_DEBUG),
141 [DBREAKA] = XTENSA_REG("DBREAKA0", XTENSA_OPTION_DEBUG),
142 [DBREAKA + 1] = XTENSA_REG("DBREAKA1", XTENSA_OPTION_DEBUG),
143 [DBREAKC] = XTENSA_REG("DBREAKC0", XTENSA_OPTION_DEBUG),
144 [DBREAKC + 1] = XTENSA_REG("DBREAKC1", XTENSA_OPTION_DEBUG),
145 [CONFIGID0] = XTENSA_REG_BITS_ACCESS("CONFIGID0", XTENSA_OPTION_ALL, SR_R),
146 [EPC1] = XTENSA_REG("EPC1", XTENSA_OPTION_EXCEPTION),
147 [EPC1 + 1] = XTENSA_REG("EPC2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
148 [EPC1 + 2] = XTENSA_REG("EPC3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
149 [EPC1 + 3] = XTENSA_REG("EPC4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
150 [EPC1 + 4] = XTENSA_REG("EPC5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
151 [EPC1 + 5] = XTENSA_REG("EPC6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
152 [EPC1 + 6] = XTENSA_REG("EPC7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
153 [DEPC] = XTENSA_REG("DEPC", XTENSA_OPTION_EXCEPTION),
154 [EPS2] = XTENSA_REG("EPS2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
155 [EPS2 + 1] = XTENSA_REG("EPS3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
156 [EPS2 + 2] = XTENSA_REG("EPS4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
157 [EPS2 + 3] = XTENSA_REG("EPS5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
158 [EPS2 + 4] = XTENSA_REG("EPS6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
159 [EPS2 + 5] = XTENSA_REG("EPS7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
160 [CONFIGID1] = XTENSA_REG_BITS_ACCESS("CONFIGID1", XTENSA_OPTION_ALL, SR_R),
161 [EXCSAVE1] = XTENSA_REG("EXCSAVE1", XTENSA_OPTION_EXCEPTION),
162 [EXCSAVE1 + 1] = XTENSA_REG("EXCSAVE2",
163 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
164 [EXCSAVE1 + 2] = XTENSA_REG("EXCSAVE3",
165 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
166 [EXCSAVE1 + 3] = XTENSA_REG("EXCSAVE4",
167 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
168 [EXCSAVE1 + 4] = XTENSA_REG("EXCSAVE5",
169 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
170 [EXCSAVE1 + 5] = XTENSA_REG("EXCSAVE6",
171 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
172 [EXCSAVE1 + 6] = XTENSA_REG("EXCSAVE7",
173 XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT),
174 [CPENABLE] = XTENSA_REG("CPENABLE", XTENSA_OPTION_COPROCESSOR),
175 [INTSET] = XTENSA_REG_ACCESS("INTSET", XTENSA_OPTION_INTERRUPT, SR_RW),
176 [INTCLEAR] = XTENSA_REG_ACCESS("INTCLEAR", XTENSA_OPTION_INTERRUPT, SR_W),
177 [INTENABLE] = XTENSA_REG("INTENABLE", XTENSA_OPTION_INTERRUPT),
178 [PS] = XTENSA_REG_BITS("PS", XTENSA_OPTION_ALL),
179 [VECBASE] = XTENSA_REG("VECBASE", XTENSA_OPTION_RELOCATABLE_VECTOR),
180 [EXCCAUSE] = XTENSA_REG("EXCCAUSE", XTENSA_OPTION_EXCEPTION),
181 [DEBUGCAUSE] = XTENSA_REG_ACCESS("DEBUGCAUSE", XTENSA_OPTION_DEBUG, SR_R),
182 [CCOUNT] = XTENSA_REG("CCOUNT", XTENSA_OPTION_TIMER_INTERRUPT),
183 [PRID] = XTENSA_REG_ACCESS("PRID", XTENSA_OPTION_PROCESSOR_ID, SR_R),
184 [ICOUNT] = XTENSA_REG("ICOUNT", XTENSA_OPTION_DEBUG),
185 [ICOUNTLEVEL] = XTENSA_REG("ICOUNTLEVEL", XTENSA_OPTION_DEBUG),
186 [EXCVADDR] = XTENSA_REG("EXCVADDR", XTENSA_OPTION_EXCEPTION),
187 [CCOMPARE] = XTENSA_REG("CCOMPARE0", XTENSA_OPTION_TIMER_INTERRUPT),
188 [CCOMPARE + 1] = XTENSA_REG("CCOMPARE1",
189 XTENSA_OPTION_TIMER_INTERRUPT),
190 [CCOMPARE + 2] = XTENSA_REG("CCOMPARE2",
191 XTENSA_OPTION_TIMER_INTERRUPT),
192 [MISC] = XTENSA_REG("MISC0", XTENSA_OPTION_MISC_SR),
193 [MISC + 1] = XTENSA_REG("MISC1", XTENSA_OPTION_MISC_SR),
194 [MISC + 2] = XTENSA_REG("MISC2", XTENSA_OPTION_MISC_SR),
195 [MISC + 3] = XTENSA_REG("MISC3", XTENSA_OPTION_MISC_SR),
196 };
197
198 static const XtensaReg uregnames[256] = {
199 [THREADPTR] = XTENSA_REG("THREADPTR", XTENSA_OPTION_THREAD_POINTER),
200 [FCR] = XTENSA_REG("FCR", XTENSA_OPTION_FP_COPROCESSOR),
201 [FSR] = XTENSA_REG("FSR", XTENSA_OPTION_FP_COPROCESSOR),
202 };
203
204 void xtensa_translate_init(void)
205 {
206 static const char * const regnames[] = {
207 "ar0", "ar1", "ar2", "ar3",
208 "ar4", "ar5", "ar6", "ar7",
209 "ar8", "ar9", "ar10", "ar11",
210 "ar12", "ar13", "ar14", "ar15",
211 };
212 static const char * const fregnames[] = {
213 "f0", "f1", "f2", "f3",
214 "f4", "f5", "f6", "f7",
215 "f8", "f9", "f10", "f11",
216 "f12", "f13", "f14", "f15",
217 };
218 int i;
219
220 cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
221 cpu_pc = tcg_global_mem_new_i32(cpu_env,
222 offsetof(CPUXtensaState, pc), "pc");
223
224 for (i = 0; i < 16; i++) {
225 cpu_R[i] = tcg_global_mem_new_i32(cpu_env,
226 offsetof(CPUXtensaState, regs[i]),
227 regnames[i]);
228 }
229
230 for (i = 0; i < 16; i++) {
231 cpu_FR[i] = tcg_global_mem_new_i32(cpu_env,
232 offsetof(CPUXtensaState, fregs[i].f32[FP_F32_LOW]),
233 fregnames[i]);
234 }
235
236 for (i = 0; i < 256; ++i) {
237 if (sregnames[i].name) {
238 cpu_SR[i] = tcg_global_mem_new_i32(cpu_env,
239 offsetof(CPUXtensaState, sregs[i]),
240 sregnames[i].name);
241 }
242 }
243
244 for (i = 0; i < 256; ++i) {
245 if (uregnames[i].name) {
246 cpu_UR[i] = tcg_global_mem_new_i32(cpu_env,
247 offsetof(CPUXtensaState, uregs[i]),
248 uregnames[i].name);
249 }
250 }
251 }
252
253 static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt)
254 {
255 return xtensa_option_bits_enabled(dc->config, opt);
256 }
257
258 static inline bool option_enabled(DisasContext *dc, int opt)
259 {
260 return xtensa_option_enabled(dc->config, opt);
261 }
262
263 static void init_litbase(DisasContext *dc)
264 {
265 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
266 dc->litbase = tcg_temp_local_new_i32();
267 tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000);
268 }
269 }
270
271 static void reset_litbase(DisasContext *dc)
272 {
273 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
274 tcg_temp_free(dc->litbase);
275 }
276 }
277
278 static void init_sar_tracker(DisasContext *dc)
279 {
280 dc->sar_5bit = false;
281 dc->sar_m32_5bit = false;
282 dc->sar_m32_allocated = false;
283 }
284
285 static void reset_sar_tracker(DisasContext *dc)
286 {
287 if (dc->sar_m32_allocated) {
288 tcg_temp_free(dc->sar_m32);
289 }
290 }
291
292 static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa)
293 {
294 tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f);
295 if (dc->sar_m32_5bit) {
296 tcg_gen_discard_i32(dc->sar_m32);
297 }
298 dc->sar_5bit = true;
299 dc->sar_m32_5bit = false;
300 }
301
302 static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa)
303 {
304 TCGv_i32 tmp = tcg_const_i32(32);
305 if (!dc->sar_m32_allocated) {
306 dc->sar_m32 = tcg_temp_local_new_i32();
307 dc->sar_m32_allocated = true;
308 }
309 tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f);
310 tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32);
311 dc->sar_5bit = false;
312 dc->sar_m32_5bit = true;
313 tcg_temp_free(tmp);
314 }
315
316 static void gen_advance_ccount(DisasContext *dc)
317 {
318 if (dc->ccount_delta > 0) {
319 TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta);
320 gen_helper_advance_ccount(cpu_env, tmp);
321 tcg_temp_free(tmp);
322 }
323 dc->ccount_delta = 0;
324 }
325
326 static void gen_exception(DisasContext *dc, int excp)
327 {
328 TCGv_i32 tmp = tcg_const_i32(excp);
329 gen_advance_ccount(dc);
330 gen_helper_exception(cpu_env, tmp);
331 tcg_temp_free(tmp);
332 }
333
334 static void gen_exception_cause(DisasContext *dc, uint32_t cause)
335 {
336 TCGv_i32 tpc = tcg_const_i32(dc->pc);
337 TCGv_i32 tcause = tcg_const_i32(cause);
338 gen_advance_ccount(dc);
339 gen_helper_exception_cause(cpu_env, tpc, tcause);
340 tcg_temp_free(tpc);
341 tcg_temp_free(tcause);
342 if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
343 cause == SYSCALL_CAUSE) {
344 dc->is_jmp = DISAS_UPDATE;
345 }
346 }
347
348 static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause,
349 TCGv_i32 vaddr)
350 {
351 TCGv_i32 tpc = tcg_const_i32(dc->pc);
352 TCGv_i32 tcause = tcg_const_i32(cause);
353 gen_advance_ccount(dc);
354 gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr);
355 tcg_temp_free(tpc);
356 tcg_temp_free(tcause);
357 }
358
359 static void gen_debug_exception(DisasContext *dc, uint32_t cause)
360 {
361 TCGv_i32 tpc = tcg_const_i32(dc->pc);
362 TCGv_i32 tcause = tcg_const_i32(cause);
363 gen_advance_ccount(dc);
364 gen_helper_debug_exception(cpu_env, tpc, tcause);
365 tcg_temp_free(tpc);
366 tcg_temp_free(tcause);
367 if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
368 dc->is_jmp = DISAS_UPDATE;
369 }
370 }
371
372 static bool gen_check_privilege(DisasContext *dc)
373 {
374 if (dc->cring) {
375 gen_exception_cause(dc, PRIVILEGED_CAUSE);
376 dc->is_jmp = DISAS_UPDATE;
377 return false;
378 }
379 return true;
380 }
381
382 static bool gen_check_cpenable(DisasContext *dc, unsigned cp)
383 {
384 if (option_enabled(dc, XTENSA_OPTION_COPROCESSOR) &&
385 !(dc->cpenable & (1 << cp))) {
386 gen_exception_cause(dc, COPROCESSOR0_DISABLED + cp);
387 dc->is_jmp = DISAS_UPDATE;
388 return false;
389 }
390 return true;
391 }
392
393 static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot)
394 {
395 tcg_gen_mov_i32(cpu_pc, dest);
396 gen_advance_ccount(dc);
397 if (dc->icount) {
398 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount);
399 }
400 if (dc->singlestep_enabled) {
401 gen_exception(dc, EXCP_DEBUG);
402 } else {
403 if (slot >= 0) {
404 tcg_gen_goto_tb(slot);
405 tcg_gen_exit_tb((uintptr_t)dc->tb + slot);
406 } else {
407 tcg_gen_exit_tb(0);
408 }
409 }
410 dc->is_jmp = DISAS_UPDATE;
411 }
412
413 static void gen_jump(DisasContext *dc, TCGv dest)
414 {
415 gen_jump_slot(dc, dest, -1);
416 }
417
418 static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot)
419 {
420 TCGv_i32 tmp = tcg_const_i32(dest);
421 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
422 slot = -1;
423 }
424 gen_jump_slot(dc, tmp, slot);
425 tcg_temp_free(tmp);
426 }
427
428 static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest,
429 int slot)
430 {
431 TCGv_i32 tcallinc = tcg_const_i32(callinc);
432
433 tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS],
434 tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN);
435 tcg_temp_free(tcallinc);
436 tcg_gen_movi_i32(cpu_R[callinc << 2],
437 (callinc << 30) | (dc->next_pc & 0x3fffffff));
438 gen_jump_slot(dc, dest, slot);
439 }
440
441 static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest)
442 {
443 gen_callw_slot(dc, callinc, dest, -1);
444 }
445
446 static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot)
447 {
448 TCGv_i32 tmp = tcg_const_i32(dest);
449 if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
450 slot = -1;
451 }
452 gen_callw_slot(dc, callinc, tmp, slot);
453 tcg_temp_free(tmp);
454 }
455
456 static bool gen_check_loop_end(DisasContext *dc, int slot)
457 {
458 if (option_enabled(dc, XTENSA_OPTION_LOOP) &&
459 !(dc->tb->flags & XTENSA_TBFLAG_EXCM) &&
460 dc->next_pc == dc->lend) {
461 TCGLabel *label = gen_new_label();
462
463 gen_advance_ccount(dc);
464 tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
465 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
466 gen_jumpi(dc, dc->lbeg, slot);
467 gen_set_label(label);
468 gen_jumpi(dc, dc->next_pc, -1);
469 return true;
470 }
471 return false;
472 }
473
474 static void gen_jumpi_check_loop_end(DisasContext *dc, int slot)
475 {
476 if (!gen_check_loop_end(dc, slot)) {
477 gen_jumpi(dc, dc->next_pc, slot);
478 }
479 }
480
481 static void gen_brcond(DisasContext *dc, TCGCond cond,
482 TCGv_i32 t0, TCGv_i32 t1, uint32_t offset)
483 {
484 TCGLabel *label = gen_new_label();
485
486 gen_advance_ccount(dc);
487 tcg_gen_brcond_i32(cond, t0, t1, label);
488 gen_jumpi_check_loop_end(dc, 0);
489 gen_set_label(label);
490 gen_jumpi(dc, dc->pc + offset, 1);
491 }
492
493 static void gen_brcondi(DisasContext *dc, TCGCond cond,
494 TCGv_i32 t0, uint32_t t1, uint32_t offset)
495 {
496 TCGv_i32 tmp = tcg_const_i32(t1);
497 gen_brcond(dc, cond, t0, tmp, offset);
498 tcg_temp_free(tmp);
499 }
500
501 static bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access)
502 {
503 if (!xtensa_option_bits_enabled(dc->config, sregnames[sr].opt_bits)) {
504 if (sregnames[sr].name) {
505 qemu_log_mask(LOG_GUEST_ERROR, "SR %s is not configured\n", sregnames[sr].name);
506 } else {
507 qemu_log_mask(LOG_UNIMP, "SR %d is not implemented\n", sr);
508 }
509 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
510 return false;
511 } else if (!(sregnames[sr].access & access)) {
512 static const char * const access_text[] = {
513 [SR_R] = "rsr",
514 [SR_W] = "wsr",
515 [SR_X] = "xsr",
516 };
517 assert(access < ARRAY_SIZE(access_text) && access_text[access]);
518 qemu_log_mask(LOG_GUEST_ERROR, "SR %s is not available for %s\n", sregnames[sr].name,
519 access_text[access]);
520 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
521 return false;
522 }
523 return true;
524 }
525
526 static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr)
527 {
528 gen_advance_ccount(dc);
529 tcg_gen_mov_i32(d, cpu_SR[sr]);
530 }
531
532 static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
533 {
534 tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10);
535 tcg_gen_or_i32(d, d, cpu_SR[sr]);
536 tcg_gen_andi_i32(d, d, 0xfffffffc);
537 }
538
539 static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
540 {
541 static void (* const rsr_handler[256])(DisasContext *dc,
542 TCGv_i32 d, uint32_t sr) = {
543 [CCOUNT] = gen_rsr_ccount,
544 [PTEVADDR] = gen_rsr_ptevaddr,
545 };
546
547 if (rsr_handler[sr]) {
548 rsr_handler[sr](dc, d, sr);
549 } else {
550 tcg_gen_mov_i32(d, cpu_SR[sr]);
551 }
552 }
553
554 static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
555 {
556 gen_helper_wsr_lbeg(cpu_env, s);
557 gen_jumpi_check_loop_end(dc, 0);
558 }
559
560 static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
561 {
562 gen_helper_wsr_lend(cpu_env, s);
563 gen_jumpi_check_loop_end(dc, 0);
564 }
565
566 static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s)
567 {
568 tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f);
569 if (dc->sar_m32_5bit) {
570 tcg_gen_discard_i32(dc->sar_m32);
571 }
572 dc->sar_5bit = false;
573 dc->sar_m32_5bit = false;
574 }
575
576 static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s)
577 {
578 tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff);
579 }
580
581 static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s)
582 {
583 tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001);
584 /* This can change tb->flags, so exit tb */
585 gen_jumpi_check_loop_end(dc, -1);
586 }
587
588 static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s)
589 {
590 tcg_gen_ext8s_i32(cpu_SR[sr], s);
591 }
592
593 static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
594 {
595 gen_helper_wsr_windowbase(cpu_env, v);
596 /* This can change tb->flags, so exit tb */
597 gen_jumpi_check_loop_end(dc, -1);
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 /* This can change tb->flags, so exit tb */
604 gen_jumpi_check_loop_end(dc, -1);
605 }
606
607 static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v)
608 {
609 tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000);
610 }
611
612 static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
613 {
614 gen_helper_wsr_rasid(cpu_env, v);
615 /* This can change tb->flags, so exit tb */
616 gen_jumpi_check_loop_end(dc, -1);
617 }
618
619 static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v)
620 {
621 tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000);
622 }
623
624 static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
625 {
626 gen_helper_wsr_ibreakenable(cpu_env, v);
627 gen_jumpi_check_loop_end(dc, 0);
628 }
629
630 static void gen_wsr_atomctl(DisasContext *dc, uint32_t sr, TCGv_i32 v)
631 {
632 tcg_gen_andi_i32(cpu_SR[sr], v, 0x3f);
633 }
634
635 static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
636 {
637 unsigned id = sr - IBREAKA;
638
639 if (id < dc->config->nibreak) {
640 TCGv_i32 tmp = tcg_const_i32(id);
641 gen_helper_wsr_ibreaka(cpu_env, tmp, v);
642 tcg_temp_free(tmp);
643 gen_jumpi_check_loop_end(dc, 0);
644 }
645 }
646
647 static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
648 {
649 unsigned id = sr - DBREAKA;
650
651 if (id < dc->config->ndbreak) {
652 TCGv_i32 tmp = tcg_const_i32(id);
653 gen_helper_wsr_dbreaka(cpu_env, tmp, v);
654 tcg_temp_free(tmp);
655 }
656 }
657
658 static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v)
659 {
660 unsigned id = sr - DBREAKC;
661
662 if (id < dc->config->ndbreak) {
663 TCGv_i32 tmp = tcg_const_i32(id);
664 gen_helper_wsr_dbreakc(cpu_env, tmp, v);
665 tcg_temp_free(tmp);
666 }
667 }
668
669 static void gen_wsr_cpenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
670 {
671 tcg_gen_andi_i32(cpu_SR[sr], v, 0xff);
672 /* This can change tb->flags, so exit tb */
673 gen_jumpi_check_loop_end(dc, -1);
674 }
675
676 static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v)
677 {
678 tcg_gen_andi_i32(cpu_SR[sr], v,
679 dc->config->inttype_mask[INTTYPE_SOFTWARE]);
680 gen_helper_check_interrupts(cpu_env);
681 gen_jumpi_check_loop_end(dc, 0);
682 }
683
684 static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v)
685 {
686 TCGv_i32 tmp = tcg_temp_new_i32();
687
688 tcg_gen_andi_i32(tmp, v,
689 dc->config->inttype_mask[INTTYPE_EDGE] |
690 dc->config->inttype_mask[INTTYPE_NMI] |
691 dc->config->inttype_mask[INTTYPE_SOFTWARE]);
692 tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp);
693 tcg_temp_free(tmp);
694 gen_helper_check_interrupts(cpu_env);
695 }
696
697 static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
698 {
699 tcg_gen_mov_i32(cpu_SR[sr], v);
700 gen_helper_check_interrupts(cpu_env);
701 gen_jumpi_check_loop_end(dc, 0);
702 }
703
704 static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
705 {
706 uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB |
707 PS_UM | PS_EXCM | PS_INTLEVEL;
708
709 if (option_enabled(dc, XTENSA_OPTION_MMU)) {
710 mask |= PS_RING;
711 }
712 tcg_gen_andi_i32(cpu_SR[sr], v, mask);
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 TCGLabel *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 bool gen_window_check1(DisasContext *dc, unsigned r1)
834 {
835 if (r1 / 4 > dc->window) {
836 TCGv_i32 pc = tcg_const_i32(dc->pc);
837 TCGv_i32 w = tcg_const_i32(r1 / 4);
838
839 gen_advance_ccount(dc);
840 gen_helper_window_check(cpu_env, pc, w);
841 dc->is_jmp = DISAS_UPDATE;
842 return false;
843 }
844 return true;
845 }
846
847 static bool gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2)
848 {
849 return gen_window_check1(dc, r1 > r2 ? r1 : r2);
850 }
851
852 static bool gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2,
853 unsigned r3)
854 {
855 return gen_window_check2(dc, r1, r2 > r3 ? r2 : r3);
856 }
857
858 static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned)
859 {
860 TCGv_i32 m = tcg_temp_new_i32();
861
862 if (hi) {
863 (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16);
864 } else {
865 (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v);
866 }
867 return m;
868 }
869
870 static inline unsigned xtensa_op0_insn_len(unsigned op0)
871 {
872 return op0 >= 8 ? 2 : 3;
873 }
874
875 static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc)
876 {
877 #define HAS_OPTION_BITS(opt) do { \
878 if (!option_bits_enabled(dc, opt)) { \
879 qemu_log_mask(LOG_GUEST_ERROR, "Option is not enabled %s:%d\n", \
880 __FILE__, __LINE__); \
881 goto invalid_opcode; \
882 } \
883 } while (0)
884
885 #define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt))
886
887 #define TBD() qemu_log_mask(LOG_UNIMP, "TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__)
888 #define RESERVED() do { \
889 qemu_log_mask(LOG_GUEST_ERROR, "RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \
890 dc->pc, b0, b1, b2, __FILE__, __LINE__); \
891 goto invalid_opcode; \
892 } while (0)
893
894
895 #ifdef TARGET_WORDS_BIGENDIAN
896 #define OP0 (((b0) & 0xf0) >> 4)
897 #define OP1 (((b2) & 0xf0) >> 4)
898 #define OP2 ((b2) & 0xf)
899 #define RRR_R ((b1) & 0xf)
900 #define RRR_S (((b1) & 0xf0) >> 4)
901 #define RRR_T ((b0) & 0xf)
902 #else
903 #define OP0 (((b0) & 0xf))
904 #define OP1 (((b2) & 0xf))
905 #define OP2 (((b2) & 0xf0) >> 4)
906 #define RRR_R (((b1) & 0xf0) >> 4)
907 #define RRR_S (((b1) & 0xf))
908 #define RRR_T (((b0) & 0xf0) >> 4)
909 #endif
910 #define RRR_X ((RRR_R & 0x4) >> 2)
911 #define RRR_Y ((RRR_T & 0x4) >> 2)
912 #define RRR_W (RRR_R & 0x3)
913
914 #define RRRN_R RRR_R
915 #define RRRN_S RRR_S
916 #define RRRN_T RRR_T
917
918 #define RRI4_R RRR_R
919 #define RRI4_S RRR_S
920 #define RRI4_T RRR_T
921 #ifdef TARGET_WORDS_BIGENDIAN
922 #define RRI4_IMM4 ((b2) & 0xf)
923 #else
924 #define RRI4_IMM4 (((b2) & 0xf0) >> 4)
925 #endif
926
927 #define RRI8_R RRR_R
928 #define RRI8_S RRR_S
929 #define RRI8_T RRR_T
930 #define RRI8_IMM8 (b2)
931 #define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8)
932
933 #ifdef TARGET_WORDS_BIGENDIAN
934 #define RI16_IMM16 (((b1) << 8) | (b2))
935 #else
936 #define RI16_IMM16 (((b2) << 8) | (b1))
937 #endif
938
939 #ifdef TARGET_WORDS_BIGENDIAN
940 #define CALL_N (((b0) & 0xc) >> 2)
941 #define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2))
942 #else
943 #define CALL_N (((b0) & 0x30) >> 4)
944 #define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10))
945 #endif
946 #define CALL_OFFSET_SE \
947 (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET)
948
949 #define CALLX_N CALL_N
950 #ifdef TARGET_WORDS_BIGENDIAN
951 #define CALLX_M ((b0) & 0x3)
952 #else
953 #define CALLX_M (((b0) & 0xc0) >> 6)
954 #endif
955 #define CALLX_S RRR_S
956
957 #define BRI12_M CALLX_M
958 #define BRI12_S RRR_S
959 #ifdef TARGET_WORDS_BIGENDIAN
960 #define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2))
961 #else
962 #define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4))
963 #endif
964 #define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12)
965
966 #define BRI8_M BRI12_M
967 #define BRI8_R RRI8_R
968 #define BRI8_S RRI8_S
969 #define BRI8_IMM8 RRI8_IMM8
970 #define BRI8_IMM8_SE RRI8_IMM8_SE
971
972 #define RSR_SR (b1)
973
974 uint8_t b0 = cpu_ldub_code(env, dc->pc);
975 uint8_t b1 = cpu_ldub_code(env, dc->pc + 1);
976 uint8_t b2 = 0;
977 unsigned len = xtensa_op0_insn_len(OP0);
978
979 static const uint32_t B4CONST[] = {
980 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
981 };
982
983 static const uint32_t B4CONSTU[] = {
984 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
985 };
986
987 switch (len) {
988 case 2:
989 HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);
990 break;
991
992 case 3:
993 b2 = cpu_ldub_code(env, dc->pc + 2);
994 break;
995
996 default:
997 RESERVED();
998 }
999 dc->next_pc = dc->pc + len;
1000
1001 switch (OP0) {
1002 case 0: /*QRST*/
1003 switch (OP1) {
1004 case 0: /*RST0*/
1005 switch (OP2) {
1006 case 0: /*ST0*/
1007 if ((RRR_R & 0xc) == 0x8) {
1008 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1009 }
1010
1011 switch (RRR_R) {
1012 case 0: /*SNM0*/
1013 switch (CALLX_M) {
1014 case 0: /*ILL*/
1015 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1016 break;
1017
1018 case 1: /*reserved*/
1019 RESERVED();
1020 break;
1021
1022 case 2: /*JR*/
1023 switch (CALLX_N) {
1024 case 0: /*RET*/
1025 case 2: /*JX*/
1026 if (gen_window_check1(dc, CALLX_S)) {
1027 gen_jump(dc, cpu_R[CALLX_S]);
1028 }
1029 break;
1030
1031 case 1: /*RETWw*/
1032 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1033 {
1034 TCGv_i32 tmp = tcg_const_i32(dc->pc);
1035 gen_advance_ccount(dc);
1036 gen_helper_retw(tmp, cpu_env, tmp);
1037 gen_jump(dc, tmp);
1038 tcg_temp_free(tmp);
1039 }
1040 break;
1041
1042 case 3: /*reserved*/
1043 RESERVED();
1044 break;
1045 }
1046 break;
1047
1048 case 3: /*CALLX*/
1049 if (!gen_window_check2(dc, CALLX_S, CALLX_N << 2)) {
1050 break;
1051 }
1052 switch (CALLX_N) {
1053 case 0: /*CALLX0*/
1054 {
1055 TCGv_i32 tmp = tcg_temp_new_i32();
1056 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
1057 tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
1058 gen_jump(dc, tmp);
1059 tcg_temp_free(tmp);
1060 }
1061 break;
1062
1063 case 1: /*CALLX4w*/
1064 case 2: /*CALLX8w*/
1065 case 3: /*CALLX12w*/
1066 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1067 {
1068 TCGv_i32 tmp = tcg_temp_new_i32();
1069
1070 tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
1071 gen_callw(dc, CALLX_N, tmp);
1072 tcg_temp_free(tmp);
1073 }
1074 break;
1075 }
1076 break;
1077 }
1078 break;
1079
1080 case 1: /*MOVSPw*/
1081 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1082 if (gen_window_check2(dc, RRR_T, RRR_S)) {
1083 TCGv_i32 pc = tcg_const_i32(dc->pc);
1084 gen_advance_ccount(dc);
1085 gen_helper_movsp(cpu_env, pc);
1086 tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]);
1087 tcg_temp_free(pc);
1088 }
1089 break;
1090
1091 case 2: /*SYNC*/
1092 switch (RRR_T) {
1093 case 0: /*ISYNC*/
1094 break;
1095
1096 case 1: /*RSYNC*/
1097 break;
1098
1099 case 2: /*ESYNC*/
1100 break;
1101
1102 case 3: /*DSYNC*/
1103 break;
1104
1105 case 8: /*EXCW*/
1106 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1107 break;
1108
1109 case 12: /*MEMW*/
1110 break;
1111
1112 case 13: /*EXTW*/
1113 break;
1114
1115 case 15: /*NOP*/
1116 break;
1117
1118 default: /*reserved*/
1119 RESERVED();
1120 break;
1121 }
1122 break;
1123
1124 case 3: /*RFEIx*/
1125 switch (RRR_T) {
1126 case 0: /*RFETx*/
1127 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1128 switch (RRR_S) {
1129 case 0: /*RFEx*/
1130 if (gen_check_privilege(dc)) {
1131 tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
1132 gen_helper_check_interrupts(cpu_env);
1133 gen_jump(dc, cpu_SR[EPC1]);
1134 }
1135 break;
1136
1137 case 1: /*RFUEx*/
1138 RESERVED();
1139 break;
1140
1141 case 2: /*RFDEx*/
1142 if (gen_check_privilege(dc)) {
1143 gen_jump(dc, cpu_SR[
1144 dc->config->ndepc ? DEPC : EPC1]);
1145 }
1146 break;
1147
1148 case 4: /*RFWOw*/
1149 case 5: /*RFWUw*/
1150 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1151 if (gen_check_privilege(dc)) {
1152 TCGv_i32 tmp = tcg_const_i32(1);
1153
1154 tcg_gen_andi_i32(
1155 cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
1156 tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]);
1157
1158 if (RRR_S == 4) {
1159 tcg_gen_andc_i32(cpu_SR[WINDOW_START],
1160 cpu_SR[WINDOW_START], tmp);
1161 } else {
1162 tcg_gen_or_i32(cpu_SR[WINDOW_START],
1163 cpu_SR[WINDOW_START], tmp);
1164 }
1165
1166 gen_helper_restore_owb(cpu_env);
1167 gen_helper_check_interrupts(cpu_env);
1168 gen_jump(dc, cpu_SR[EPC1]);
1169
1170 tcg_temp_free(tmp);
1171 }
1172 break;
1173
1174 default: /*reserved*/
1175 RESERVED();
1176 break;
1177 }
1178 break;
1179
1180 case 1: /*RFIx*/
1181 HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT);
1182 if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) {
1183 if (gen_check_privilege(dc)) {
1184 tcg_gen_mov_i32(cpu_SR[PS],
1185 cpu_SR[EPS2 + RRR_S - 2]);
1186 gen_helper_check_interrupts(cpu_env);
1187 gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]);
1188 }
1189 } else {
1190 qemu_log_mask(LOG_GUEST_ERROR, "RFI %d is illegal\n", RRR_S);
1191 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
1192 }
1193 break;
1194
1195 case 2: /*RFME*/
1196 TBD();
1197 break;
1198
1199 default: /*reserved*/
1200 RESERVED();
1201 break;
1202
1203 }
1204 break;
1205
1206 case 4: /*BREAKx*/
1207 HAS_OPTION(XTENSA_OPTION_DEBUG);
1208 if (dc->debug) {
1209 gen_debug_exception(dc, DEBUGCAUSE_BI);
1210 }
1211 break;
1212
1213 case 5: /*SYSCALLx*/
1214 HAS_OPTION(XTENSA_OPTION_EXCEPTION);
1215 switch (RRR_S) {
1216 case 0: /*SYSCALLx*/
1217 gen_exception_cause(dc, SYSCALL_CAUSE);
1218 break;
1219
1220 case 1: /*SIMCALL*/
1221 if (semihosting_enabled()) {
1222 if (gen_check_privilege(dc)) {
1223 gen_helper_simcall(cpu_env);
1224 }
1225 } else {
1226 qemu_log_mask(LOG_GUEST_ERROR, "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 if (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 }
1247 break;
1248
1249 case 7: /*WAITIx*/
1250 HAS_OPTION(XTENSA_OPTION_INTERRUPT);
1251 if (gen_check_privilege(dc)) {
1252 gen_waiti(dc, RRR_S);
1253 }
1254 break;
1255
1256 case 8: /*ANY4p*/
1257 case 9: /*ALL4p*/
1258 case 10: /*ANY8p*/
1259 case 11: /*ALL8p*/
1260 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1261 {
1262 const unsigned shift = (RRR_R & 2) ? 8 : 4;
1263 TCGv_i32 mask = tcg_const_i32(
1264 ((1 << shift) - 1) << RRR_S);
1265 TCGv_i32 tmp = tcg_temp_new_i32();
1266
1267 tcg_gen_and_i32(tmp, cpu_SR[BR], mask);
1268 if (RRR_R & 1) { /*ALL*/
1269 tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S);
1270 } else { /*ANY*/
1271 tcg_gen_add_i32(tmp, tmp, mask);
1272 }
1273 tcg_gen_shri_i32(tmp, tmp, RRR_S + shift);
1274 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR],
1275 tmp, RRR_T, 1);
1276 tcg_temp_free(mask);
1277 tcg_temp_free(tmp);
1278 }
1279 break;
1280
1281 default: /*reserved*/
1282 RESERVED();
1283 break;
1284
1285 }
1286 break;
1287
1288 case 1: /*AND*/
1289 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1290 tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1291 }
1292 break;
1293
1294 case 2: /*OR*/
1295 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1296 tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1297 }
1298 break;
1299
1300 case 3: /*XOR*/
1301 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1302 tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1303 }
1304 break;
1305
1306 case 4: /*ST1*/
1307 switch (RRR_R) {
1308 case 0: /*SSR*/
1309 if (gen_window_check1(dc, RRR_S)) {
1310 gen_right_shift_sar(dc, cpu_R[RRR_S]);
1311 }
1312 break;
1313
1314 case 1: /*SSL*/
1315 if (gen_window_check1(dc, RRR_S)) {
1316 gen_left_shift_sar(dc, cpu_R[RRR_S]);
1317 }
1318 break;
1319
1320 case 2: /*SSA8L*/
1321 if (gen_window_check1(dc, RRR_S)) {
1322 TCGv_i32 tmp = tcg_temp_new_i32();
1323 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
1324 gen_right_shift_sar(dc, tmp);
1325 tcg_temp_free(tmp);
1326 }
1327 break;
1328
1329 case 3: /*SSA8B*/
1330 if (gen_window_check1(dc, RRR_S)) {
1331 TCGv_i32 tmp = tcg_temp_new_i32();
1332 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
1333 gen_left_shift_sar(dc, tmp);
1334 tcg_temp_free(tmp);
1335 }
1336 break;
1337
1338 case 4: /*SSAI*/
1339 {
1340 TCGv_i32 tmp = tcg_const_i32(
1341 RRR_S | ((RRR_T & 1) << 4));
1342 gen_right_shift_sar(dc, tmp);
1343 tcg_temp_free(tmp);
1344 }
1345 break;
1346
1347 case 6: /*RER*/
1348 TBD();
1349 break;
1350
1351 case 7: /*WER*/
1352 TBD();
1353 break;
1354
1355 case 8: /*ROTWw*/
1356 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1357 if (gen_check_privilege(dc)) {
1358 TCGv_i32 tmp = tcg_const_i32(
1359 RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
1360 gen_helper_rotw(cpu_env, tmp);
1361 tcg_temp_free(tmp);
1362 /* This can change tb->flags, so exit tb */
1363 gen_jumpi_check_loop_end(dc, -1);
1364 }
1365 break;
1366
1367 case 14: /*NSAu*/
1368 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
1369 if (gen_window_check2(dc, RRR_S, RRR_T)) {
1370 gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);
1371 }
1372 break;
1373
1374 case 15: /*NSAUu*/
1375 HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
1376 if (gen_window_check2(dc, RRR_S, RRR_T)) {
1377 gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);
1378 }
1379 break;
1380
1381 default: /*reserved*/
1382 RESERVED();
1383 break;
1384 }
1385 break;
1386
1387 case 5: /*TLB*/
1388 HAS_OPTION_BITS(
1389 XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) |
1390 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) |
1391 XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION));
1392 if (gen_check_privilege(dc) &&
1393 gen_window_check2(dc, RRR_S, RRR_T)) {
1394 TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0);
1395
1396 switch (RRR_R & 7) {
1397 case 3: /*RITLB0*/ /*RDTLB0*/
1398 gen_helper_rtlb0(cpu_R[RRR_T],
1399 cpu_env, cpu_R[RRR_S], dtlb);
1400 break;
1401
1402 case 4: /*IITLB*/ /*IDTLB*/
1403 gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb);
1404 /* This could change memory mapping, so exit tb */
1405 gen_jumpi_check_loop_end(dc, -1);
1406 break;
1407
1408 case 5: /*PITLB*/ /*PDTLB*/
1409 tcg_gen_movi_i32(cpu_pc, dc->pc);
1410 gen_helper_ptlb(cpu_R[RRR_T],
1411 cpu_env, cpu_R[RRR_S], dtlb);
1412 break;
1413
1414 case 6: /*WITLB*/ /*WDTLB*/
1415 gen_helper_wtlb(
1416 cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
1417 /* This could change memory mapping, so exit tb */
1418 gen_jumpi_check_loop_end(dc, -1);
1419 break;
1420
1421 case 7: /*RITLB1*/ /*RDTLB1*/
1422 gen_helper_rtlb1(cpu_R[RRR_T],
1423 cpu_env, cpu_R[RRR_S], dtlb);
1424 break;
1425
1426 default:
1427 tcg_temp_free(dtlb);
1428 RESERVED();
1429 break;
1430 }
1431 tcg_temp_free(dtlb);
1432 }
1433 break;
1434
1435 case 6: /*RT0*/
1436 if (!gen_window_check2(dc, RRR_R, RRR_T)) {
1437 break;
1438 }
1439 switch (RRR_S) {
1440 case 0: /*NEG*/
1441 tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);
1442 break;
1443
1444 case 1: /*ABS*/
1445 {
1446 TCGv_i32 zero = tcg_const_i32(0);
1447 TCGv_i32 neg = tcg_temp_new_i32();
1448
1449 tcg_gen_neg_i32(neg, cpu_R[RRR_T]);
1450 tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R],
1451 cpu_R[RRR_T], zero, cpu_R[RRR_T], neg);
1452 tcg_temp_free(neg);
1453 tcg_temp_free(zero);
1454 }
1455 break;
1456
1457 default: /*reserved*/
1458 RESERVED();
1459 break;
1460 }
1461 break;
1462
1463 case 7: /*reserved*/
1464 RESERVED();
1465 break;
1466
1467 case 8: /*ADD*/
1468 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1469 tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1470 }
1471 break;
1472
1473 case 9: /*ADD**/
1474 case 10:
1475 case 11:
1476 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1477 TCGv_i32 tmp = tcg_temp_new_i32();
1478 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8);
1479 tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);
1480 tcg_temp_free(tmp);
1481 }
1482 break;
1483
1484 case 12: /*SUB*/
1485 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1486 tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1487 }
1488 break;
1489
1490 case 13: /*SUB**/
1491 case 14:
1492 case 15:
1493 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1494 TCGv_i32 tmp = tcg_temp_new_i32();
1495 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12);
1496 tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]);
1497 tcg_temp_free(tmp);
1498 }
1499 break;
1500 }
1501 break;
1502
1503 case 1: /*RST1*/
1504 switch (OP2) {
1505 case 0: /*SLLI*/
1506 case 1:
1507 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1508 tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],
1509 32 - (RRR_T | ((OP2 & 1) << 4)));
1510 }
1511 break;
1512
1513 case 2: /*SRAI*/
1514 case 3:
1515 if (gen_window_check2(dc, RRR_R, RRR_T)) {
1516 tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],
1517 RRR_S | ((OP2 & 1) << 4));
1518 }
1519 break;
1520
1521 case 4: /*SRLI*/
1522 if (gen_window_check2(dc, RRR_R, RRR_T)) {
1523 tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);
1524 }
1525 break;
1526
1527 case 6: /*XSR*/
1528 if (gen_check_sr(dc, RSR_SR, SR_X) &&
1529 (RSR_SR < 64 || gen_check_privilege(dc)) &&
1530 gen_window_check1(dc, RRR_T)) {
1531 TCGv_i32 tmp = tcg_temp_new_i32();
1532
1533 tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
1534 gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
1535 gen_wsr(dc, RSR_SR, tmp);
1536 tcg_temp_free(tmp);
1537 }
1538 break;
1539
1540 /*
1541 * Note: 64 bit ops are used here solely because SAR values
1542 * have range 0..63
1543 */
1544 #define gen_shift_reg(cmd, reg) do { \
1545 TCGv_i64 tmp = tcg_temp_new_i64(); \
1546 tcg_gen_extu_i32_i64(tmp, reg); \
1547 tcg_gen_##cmd##_i64(v, v, tmp); \
1548 tcg_gen_extrl_i64_i32(cpu_R[RRR_R], v); \
1549 tcg_temp_free_i64(v); \
1550 tcg_temp_free_i64(tmp); \
1551 } while (0)
1552
1553 #define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
1554
1555 case 8: /*SRC*/
1556 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1557 TCGv_i64 v = tcg_temp_new_i64();
1558 tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);
1559 gen_shift(shr);
1560 }
1561 break;
1562
1563 case 9: /*SRL*/
1564 if (!gen_window_check2(dc, RRR_R, RRR_T)) {
1565 break;
1566 }
1567 if (dc->sar_5bit) {
1568 tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
1569 } else {
1570 TCGv_i64 v = tcg_temp_new_i64();
1571 tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]);
1572 gen_shift(shr);
1573 }
1574 break;
1575
1576 case 10: /*SLL*/
1577 if (!gen_window_check2(dc, RRR_R, RRR_S)) {
1578 break;
1579 }
1580 if (dc->sar_m32_5bit) {
1581 tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);
1582 } else {
1583 TCGv_i64 v = tcg_temp_new_i64();
1584 TCGv_i32 s = tcg_const_i32(32);
1585 tcg_gen_sub_i32(s, s, cpu_SR[SAR]);
1586 tcg_gen_andi_i32(s, s, 0x3f);
1587 tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]);
1588 gen_shift_reg(shl, s);
1589 tcg_temp_free(s);
1590 }
1591 break;
1592
1593 case 11: /*SRA*/
1594 if (!gen_window_check2(dc, RRR_R, RRR_T)) {
1595 break;
1596 }
1597 if (dc->sar_5bit) {
1598 tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
1599 } else {
1600 TCGv_i64 v = tcg_temp_new_i64();
1601 tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]);
1602 gen_shift(sar);
1603 }
1604 break;
1605 #undef gen_shift
1606 #undef gen_shift_reg
1607
1608 case 12: /*MUL16U*/
1609 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
1610 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1611 TCGv_i32 v1 = tcg_temp_new_i32();
1612 TCGv_i32 v2 = tcg_temp_new_i32();
1613 tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]);
1614 tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]);
1615 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
1616 tcg_temp_free(v2);
1617 tcg_temp_free(v1);
1618 }
1619 break;
1620
1621 case 13: /*MUL16S*/
1622 HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
1623 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1624 TCGv_i32 v1 = tcg_temp_new_i32();
1625 TCGv_i32 v2 = tcg_temp_new_i32();
1626 tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]);
1627 tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]);
1628 tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
1629 tcg_temp_free(v2);
1630 tcg_temp_free(v1);
1631 }
1632 break;
1633
1634 default: /*reserved*/
1635 RESERVED();
1636 break;
1637 }
1638 break;
1639
1640 case 2: /*RST2*/
1641 if (OP2 >= 8 && !gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1642 break;
1643 }
1644
1645 if (OP2 >= 12) {
1646 HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
1647 TCGLabel *label = gen_new_label();
1648 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label);
1649 gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE);
1650 gen_set_label(label);
1651 }
1652
1653 switch (OP2) {
1654 #define BOOLEAN_LOGIC(fn, r, s, t) \
1655 do { \
1656 HAS_OPTION(XTENSA_OPTION_BOOLEAN); \
1657 TCGv_i32 tmp1 = tcg_temp_new_i32(); \
1658 TCGv_i32 tmp2 = tcg_temp_new_i32(); \
1659 \
1660 tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \
1661 tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \
1662 tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \
1663 tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \
1664 tcg_temp_free(tmp1); \
1665 tcg_temp_free(tmp2); \
1666 } while (0)
1667
1668 case 0: /*ANDBp*/
1669 BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T);
1670 break;
1671
1672 case 1: /*ANDBCp*/
1673 BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T);
1674 break;
1675
1676 case 2: /*ORBp*/
1677 BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T);
1678 break;
1679
1680 case 3: /*ORBCp*/
1681 BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T);
1682 break;
1683
1684 case 4: /*XORBp*/
1685 BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T);
1686 break;
1687
1688 #undef BOOLEAN_LOGIC
1689
1690 case 8: /*MULLi*/
1691 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
1692 tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1693 break;
1694
1695 case 10: /*MULUHi*/
1696 case 11: /*MULSHi*/
1697 HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH);
1698 {
1699 TCGv lo = tcg_temp_new();
1700
1701 if (OP2 == 10) {
1702 tcg_gen_mulu2_i32(lo, cpu_R[RRR_R],
1703 cpu_R[RRR_S], cpu_R[RRR_T]);
1704 } else {
1705 tcg_gen_muls2_i32(lo, cpu_R[RRR_R],
1706 cpu_R[RRR_S], cpu_R[RRR_T]);
1707 }
1708 tcg_temp_free(lo);
1709 }
1710 break;
1711
1712 case 12: /*QUOUi*/
1713 tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1714 break;
1715
1716 case 13: /*QUOSi*/
1717 case 15: /*REMSi*/
1718 {
1719 TCGLabel *label1 = gen_new_label();
1720 TCGLabel *label2 = gen_new_label();
1721
1722 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000,
1723 label1);
1724 tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff,
1725 label1);
1726 tcg_gen_movi_i32(cpu_R[RRR_R],
1727 OP2 == 13 ? 0x80000000 : 0);
1728 tcg_gen_br(label2);
1729 gen_set_label(label1);
1730 if (OP2 == 13) {
1731 tcg_gen_div_i32(cpu_R[RRR_R],
1732 cpu_R[RRR_S], cpu_R[RRR_T]);
1733 } else {
1734 tcg_gen_rem_i32(cpu_R[RRR_R],
1735 cpu_R[RRR_S], cpu_R[RRR_T]);
1736 }
1737 gen_set_label(label2);
1738 }
1739 break;
1740
1741 case 14: /*REMUi*/
1742 tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
1743 break;
1744
1745 default: /*reserved*/
1746 RESERVED();
1747 break;
1748 }
1749 break;
1750
1751 case 3: /*RST3*/
1752 switch (OP2) {
1753 case 0: /*RSR*/
1754 if (gen_check_sr(dc, RSR_SR, SR_R) &&
1755 (RSR_SR < 64 || gen_check_privilege(dc)) &&
1756 gen_window_check1(dc, RRR_T)) {
1757 gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
1758 }
1759 break;
1760
1761 case 1: /*WSR*/
1762 if (gen_check_sr(dc, RSR_SR, SR_W) &&
1763 (RSR_SR < 64 || gen_check_privilege(dc)) &&
1764 gen_window_check1(dc, RRR_T)) {
1765 gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
1766 }
1767 break;
1768
1769 case 2: /*SEXTu*/
1770 HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT);
1771 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1772 int shift = 24 - RRR_T;
1773
1774 if (shift == 24) {
1775 tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
1776 } else if (shift == 16) {
1777 tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
1778 } else {
1779 TCGv_i32 tmp = tcg_temp_new_i32();
1780 tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift);
1781 tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift);
1782 tcg_temp_free(tmp);
1783 }
1784 }
1785 break;
1786
1787 case 3: /*CLAMPSu*/
1788 HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS);
1789 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1790 TCGv_i32 tmp1 = tcg_temp_new_i32();
1791 TCGv_i32 tmp2 = tcg_temp_new_i32();
1792 TCGv_i32 zero = tcg_const_i32(0);
1793
1794 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T);
1795 tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]);
1796 tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7));
1797
1798 tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31);
1799 tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T));
1800
1801 tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero,
1802 cpu_R[RRR_S], tmp1);
1803 tcg_temp_free(tmp1);
1804 tcg_temp_free(tmp2);
1805 tcg_temp_free(zero);
1806 }
1807 break;
1808
1809 case 4: /*MINu*/
1810 case 5: /*MAXu*/
1811 case 6: /*MINUu*/
1812 case 7: /*MAXUu*/
1813 HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX);
1814 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1815 static const TCGCond cond[] = {
1816 TCG_COND_LE,
1817 TCG_COND_GE,
1818 TCG_COND_LEU,
1819 TCG_COND_GEU
1820 };
1821 tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R],
1822 cpu_R[RRR_S], cpu_R[RRR_T],
1823 cpu_R[RRR_S], cpu_R[RRR_T]);
1824 }
1825 break;
1826
1827 case 8: /*MOVEQZ*/
1828 case 9: /*MOVNEZ*/
1829 case 10: /*MOVLTZ*/
1830 case 11: /*MOVGEZ*/
1831 if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) {
1832 static const TCGCond cond[] = {
1833 TCG_COND_EQ,
1834 TCG_COND_NE,
1835 TCG_COND_LT,
1836 TCG_COND_GE,
1837 };
1838 TCGv_i32 zero = tcg_const_i32(0);
1839
1840 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R],
1841 cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]);
1842 tcg_temp_free(zero);
1843 }
1844 break;
1845
1846 case 12: /*MOVFp*/
1847 case 13: /*MOVTp*/
1848 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
1849 if (gen_window_check2(dc, RRR_R, RRR_S)) {
1850 TCGv_i32 zero = tcg_const_i32(0);
1851 TCGv_i32 tmp = tcg_temp_new_i32();
1852
1853 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
1854 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
1855 cpu_R[RRR_R], tmp, zero,
1856 cpu_R[RRR_S], cpu_R[RRR_R]);
1857
1858 tcg_temp_free(tmp);
1859 tcg_temp_free(zero);
1860 }
1861 break;
1862
1863 case 14: /*RUR*/
1864 if (gen_window_check1(dc, RRR_R)) {
1865 int st = (RRR_S << 4) + RRR_T;
1866 if (uregnames[st].name) {
1867 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]);
1868 } else {
1869 qemu_log_mask(LOG_UNIMP, "RUR %d not implemented, ", st);
1870 TBD();
1871 }
1872 }
1873 break;
1874
1875 case 15: /*WUR*/
1876 if (gen_window_check1(dc, RRR_T)) {
1877 if (uregnames[RSR_SR].name) {
1878 gen_wur(RSR_SR, cpu_R[RRR_T]);
1879 } else {
1880 qemu_log_mask(LOG_UNIMP, "WUR %d not implemented, ", RSR_SR);
1881 TBD();
1882 }
1883 }
1884 break;
1885
1886 }
1887 break;
1888
1889 case 4: /*EXTUI*/
1890 case 5:
1891 if (gen_window_check2(dc, RRR_R, RRR_T)) {
1892 int shiftimm = RRR_S | ((OP1 & 1) << 4);
1893 int maskimm = (1 << (OP2 + 1)) - 1;
1894
1895 TCGv_i32 tmp = tcg_temp_new_i32();
1896 tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm);
1897 tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm);
1898 tcg_temp_free(tmp);
1899 }
1900 break;
1901
1902 case 6: /*CUST0*/
1903 RESERVED();
1904 break;
1905
1906 case 7: /*CUST1*/
1907 RESERVED();
1908 break;
1909
1910 case 8: /*LSCXp*/
1911 switch (OP2) {
1912 case 0: /*LSXf*/
1913 case 1: /*LSXUf*/
1914 case 4: /*SSXf*/
1915 case 5: /*SSXUf*/
1916 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
1917 if (gen_window_check2(dc, RRR_S, RRR_T) &&
1918 gen_check_cpenable(dc, 0)) {
1919 TCGv_i32 addr = tcg_temp_new_i32();
1920 tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]);
1921 gen_load_store_alignment(dc, 2, addr, false);
1922 if (OP2 & 0x4) {
1923 tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring);
1924 } else {
1925 tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring);
1926 }
1927 if (OP2 & 0x1) {
1928 tcg_gen_mov_i32(cpu_R[RRR_S], addr);
1929 }
1930 tcg_temp_free(addr);
1931 }
1932 break;
1933
1934 default: /*reserved*/
1935 RESERVED();
1936 break;
1937 }
1938 break;
1939
1940 case 9: /*LSC4*/
1941 if (!gen_window_check2(dc, RRR_S, RRR_T)) {
1942 break;
1943 }
1944 switch (OP2) {
1945 case 0: /*L32E*/
1946 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1947 if (gen_check_privilege(dc) &&
1948 gen_window_check2(dc, RRR_S, RRR_T)) {
1949 TCGv_i32 addr = tcg_temp_new_i32();
1950 tcg_gen_addi_i32(addr, cpu_R[RRR_S],
1951 (0xffffffc0 | (RRR_R << 2)));
1952 tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring);
1953 tcg_temp_free(addr);
1954 }
1955 break;
1956
1957 case 4: /*S32E*/
1958 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
1959 if (gen_check_privilege(dc) &&
1960 gen_window_check2(dc, RRR_S, RRR_T)) {
1961 TCGv_i32 addr = tcg_temp_new_i32();
1962 tcg_gen_addi_i32(addr, cpu_R[RRR_S],
1963 (0xffffffc0 | (RRR_R << 2)));
1964 tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring);
1965 tcg_temp_free(addr);
1966 }
1967 break;
1968
1969 case 5: /*S32N*/
1970 if (gen_window_check2(dc, RRI4_S, RRI4_T)) {
1971 TCGv_i32 addr = tcg_temp_new_i32();
1972
1973 tcg_gen_addi_i32(addr, cpu_R[RRI4_S], RRI4_IMM4 << 2);
1974 gen_load_store_alignment(dc, 2, addr, false);
1975 tcg_gen_qemu_st32(cpu_R[RRI4_T], addr, dc->cring);
1976 tcg_temp_free(addr);
1977 }
1978 break;
1979
1980 default:
1981 RESERVED();
1982 break;
1983 }
1984 break;
1985
1986 case 10: /*FP0*/
1987 /*DEPBITS*/
1988 if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) {
1989 if (!gen_window_check2(dc, RRR_S, RRR_T)) {
1990 break;
1991 }
1992 tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S],
1993 OP2, RRR_R + 1);
1994 break;
1995 }
1996
1997 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
1998 switch (OP2) {
1999 case 0: /*ADD.Sf*/
2000 if (gen_check_cpenable(dc, 0)) {
2001 gen_helper_add_s(cpu_FR[RRR_R], cpu_env,
2002 cpu_FR[RRR_S], cpu_FR[RRR_T]);
2003 }
2004 break;
2005
2006 case 1: /*SUB.Sf*/
2007 if (gen_check_cpenable(dc, 0)) {
2008 gen_helper_sub_s(cpu_FR[RRR_R], cpu_env,
2009 cpu_FR[RRR_S], cpu_FR[RRR_T]);
2010 }
2011 break;
2012
2013 case 2: /*MUL.Sf*/
2014 if (gen_check_cpenable(dc, 0)) {
2015 gen_helper_mul_s(cpu_FR[RRR_R], cpu_env,
2016 cpu_FR[RRR_S], cpu_FR[RRR_T]);
2017 }
2018 break;
2019
2020 case 4: /*MADD.Sf*/
2021 if (gen_check_cpenable(dc, 0)) {
2022 gen_helper_madd_s(cpu_FR[RRR_R], cpu_env,
2023 cpu_FR[RRR_R], cpu_FR[RRR_S],
2024 cpu_FR[RRR_T]);
2025 }
2026 break;
2027
2028 case 5: /*MSUB.Sf*/
2029 if (gen_check_cpenable(dc, 0)) {
2030 gen_helper_msub_s(cpu_FR[RRR_R], cpu_env,
2031 cpu_FR[RRR_R], cpu_FR[RRR_S],
2032 cpu_FR[RRR_T]);
2033 }
2034 break;
2035
2036 case 8: /*ROUND.Sf*/
2037 case 9: /*TRUNC.Sf*/
2038 case 10: /*FLOOR.Sf*/
2039 case 11: /*CEIL.Sf*/
2040 case 14: /*UTRUNC.Sf*/
2041 if (gen_window_check1(dc, RRR_R) &&
2042 gen_check_cpenable(dc, 0)) {
2043 static const unsigned rounding_mode_const[] = {
2044 float_round_nearest_even,
2045 float_round_to_zero,
2046 float_round_down,
2047 float_round_up,
2048 [6] = float_round_to_zero,
2049 };
2050 TCGv_i32 rounding_mode = tcg_const_i32(
2051 rounding_mode_const[OP2 & 7]);
2052 TCGv_i32 scale = tcg_const_i32(RRR_T);
2053
2054 if (OP2 == 14) {
2055 gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S],
2056 rounding_mode, scale);
2057 } else {
2058 gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S],
2059 rounding_mode, scale);
2060 }
2061
2062 tcg_temp_free(rounding_mode);
2063 tcg_temp_free(scale);
2064 }
2065 break;
2066
2067 case 12: /*FLOAT.Sf*/
2068 case 13: /*UFLOAT.Sf*/
2069 if (gen_window_check1(dc, RRR_S) &&
2070 gen_check_cpenable(dc, 0)) {
2071 TCGv_i32 scale = tcg_const_i32(-RRR_T);
2072
2073 if (OP2 == 13) {
2074 gen_helper_uitof(cpu_FR[RRR_R], cpu_env,
2075 cpu_R[RRR_S], scale);
2076 } else {
2077 gen_helper_itof(cpu_FR[RRR_R], cpu_env,
2078 cpu_R[RRR_S], scale);
2079 }
2080 tcg_temp_free(scale);
2081 }
2082 break;
2083
2084 case 15: /*FP1OP*/
2085 switch (RRR_T) {
2086 case 0: /*MOV.Sf*/
2087 if (gen_check_cpenable(dc, 0)) {
2088 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2089 }
2090 break;
2091
2092 case 1: /*ABS.Sf*/
2093 if (gen_check_cpenable(dc, 0)) {
2094 gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2095 }
2096 break;
2097
2098 case 4: /*RFRf*/
2099 if (gen_window_check1(dc, RRR_R) &&
2100 gen_check_cpenable(dc, 0)) {
2101 tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]);
2102 }
2103 break;
2104
2105 case 5: /*WFRf*/
2106 if (gen_window_check1(dc, RRR_S) &&
2107 gen_check_cpenable(dc, 0)) {
2108 tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]);
2109 }
2110 break;
2111
2112 case 6: /*NEG.Sf*/
2113 if (gen_check_cpenable(dc, 0)) {
2114 gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]);
2115 }
2116 break;
2117
2118 default: /*reserved*/
2119 RESERVED();
2120 break;
2121 }
2122 break;
2123
2124 default: /*reserved*/
2125 RESERVED();
2126 break;
2127 }
2128 break;
2129
2130 case 11: /*FP1*/
2131 /*DEPBITS*/
2132 if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) {
2133 if (!gen_window_check2(dc, RRR_S, RRR_T)) {
2134 break;
2135 }
2136 tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S],
2137 OP2 + 16, RRR_R + 1);
2138 break;
2139 }
2140
2141 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
2142
2143 #define gen_compare(rel, br, a, b) \
2144 do { \
2145 if (gen_check_cpenable(dc, 0)) { \
2146 TCGv_i32 bit = tcg_const_i32(1 << br); \
2147 \
2148 gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \
2149 tcg_temp_free(bit); \
2150 } \
2151 } while (0)
2152
2153 switch (OP2) {
2154 case 1: /*UN.Sf*/
2155 gen_compare(un_s, RRR_R, RRR_S, RRR_T);
2156 break;
2157
2158 case 2: /*OEQ.Sf*/
2159 gen_compare(oeq_s, RRR_R, RRR_S, RRR_T);
2160 break;
2161
2162 case 3: /*UEQ.Sf*/
2163 gen_compare(ueq_s, RRR_R, RRR_S, RRR_T);
2164 break;
2165
2166 case 4: /*OLT.Sf*/
2167 gen_compare(olt_s, RRR_R, RRR_S, RRR_T);
2168 break;
2169
2170 case 5: /*ULT.Sf*/
2171 gen_compare(ult_s, RRR_R, RRR_S, RRR_T);
2172 break;
2173
2174 case 6: /*OLE.Sf*/
2175 gen_compare(ole_s, RRR_R, RRR_S, RRR_T);
2176 break;
2177
2178 case 7: /*ULE.Sf*/
2179 gen_compare(ule_s, RRR_R, RRR_S, RRR_T);
2180 break;
2181
2182 #undef gen_compare
2183
2184 case 8: /*MOVEQZ.Sf*/
2185 case 9: /*MOVNEZ.Sf*/
2186 case 10: /*MOVLTZ.Sf*/
2187 case 11: /*MOVGEZ.Sf*/
2188 if (gen_window_check1(dc, RRR_T) &&
2189 gen_check_cpenable(dc, 0)) {
2190 static const TCGCond cond[] = {
2191 TCG_COND_EQ,
2192 TCG_COND_NE,
2193 TCG_COND_LT,
2194 TCG_COND_GE,
2195 };
2196 TCGv_i32 zero = tcg_const_i32(0);
2197
2198 tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R],
2199 cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]);
2200 tcg_temp_free(zero);
2201 }
2202 break;
2203
2204 case 12: /*MOVF.Sf*/
2205 case 13: /*MOVT.Sf*/
2206 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
2207 if (gen_check_cpenable(dc, 0)) {
2208 TCGv_i32 zero = tcg_const_i32(0);
2209 TCGv_i32 tmp = tcg_temp_new_i32();
2210
2211 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
2212 tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ,
2213 cpu_FR[RRR_R], tmp, zero,
2214 cpu_FR[RRR_S], cpu_FR[RRR_R]);
2215
2216 tcg_temp_free(tmp);
2217 tcg_temp_free(zero);
2218 }
2219 break;
2220
2221 default: /*reserved*/
2222 RESERVED();
2223 break;
2224 }
2225 break;
2226
2227 default: /*reserved*/
2228 RESERVED();
2229 break;
2230 }
2231 break;
2232
2233 case 1: /*L32R*/
2234 if (gen_window_check1(dc, RRR_T)) {
2235 TCGv_i32 tmp = tcg_const_i32(
2236 ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ?
2237 0 : ((dc->pc + 3) & ~3)) +
2238 (0xfffc0000 | (RI16_IMM16 << 2)));
2239
2240 if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
2241 tcg_gen_add_i32(tmp, tmp, dc->litbase);
2242 }
2243 tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring);
2244 tcg_temp_free(tmp);
2245 }
2246 break;
2247
2248 case 2: /*LSAI*/
2249 #define gen_load_store(type, shift) do { \
2250 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \
2251 TCGv_i32 addr = tcg_temp_new_i32(); \
2252 \
2253 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \
2254 if (shift) { \
2255 gen_load_store_alignment(dc, shift, addr, false); \
2256 } \
2257 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
2258 tcg_temp_free(addr); \
2259 } \
2260 } while (0)
2261
2262 switch (RRI8_R) {
2263 case 0: /*L8UI*/
2264 gen_load_store(ld8u, 0);
2265 break;
2266
2267 case 1: /*L16UI*/
2268 gen_load_store(ld16u, 1);
2269 break;
2270
2271 case 2: /*L32I*/
2272 gen_load_store(ld32u, 2);
2273 break;
2274
2275 case 4: /*S8I*/
2276 gen_load_store(st8, 0);
2277 break;
2278
2279 case 5: /*S16I*/
2280 gen_load_store(st16, 1);
2281 break;
2282
2283 case 6: /*S32I*/
2284 gen_load_store(st32, 2);
2285 break;
2286
2287 #define gen_dcache_hit_test(w, shift) do { \
2288 if (gen_window_check1(dc, RRI##w##_S)) { \
2289 TCGv_i32 addr = tcg_temp_new_i32(); \
2290 TCGv_i32 res = tcg_temp_new_i32(); \
2291 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
2292 RRI##w##_IMM##w << shift); \
2293 tcg_gen_qemu_ld8u(res, addr, dc->cring); \
2294 tcg_temp_free(addr); \
2295 tcg_temp_free(res); \
2296 } \
2297 } while (0)
2298
2299 #define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4)
2300 #define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2)
2301
2302 case 7: /*CACHEc*/
2303 if (RRI8_T < 8) {
2304 HAS_OPTION(XTENSA_OPTION_DCACHE);
2305 }
2306
2307 switch (RRI8_T) {
2308 case 0: /*DPFRc*/
2309 gen_window_check1(dc, RRI8_S);
2310 break;
2311
2312 case 1: /*DPFWc*/
2313 gen_window_check1(dc, RRI8_S);
2314 break;
2315
2316 case 2: /*DPFROc*/
2317 gen_window_check1(dc, RRI8_S);
2318 break;
2319
2320 case 3: /*DPFWOc*/
2321 gen_window_check1(dc, RRI8_S);
2322 break;
2323
2324 case 4: /*DHWBc*/
2325 gen_dcache_hit_test8();
2326 break;
2327
2328 case 5: /*DHWBIc*/
2329 gen_dcache_hit_test8();
2330 break;
2331
2332 case 6: /*DHIc*/
2333 if (gen_check_privilege(dc)) {
2334 gen_dcache_hit_test8();
2335 }
2336 break;
2337
2338 case 7: /*DIIc*/
2339 if (gen_check_privilege(dc)) {
2340 gen_window_check1(dc, RRI8_S);
2341 }
2342 break;
2343
2344 case 8: /*DCEc*/
2345 switch (OP1) {
2346 case 0: /*DPFLl*/
2347 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2348 if (gen_check_privilege(dc)) {
2349 gen_dcache_hit_test4();
2350 }
2351 break;
2352
2353 case 2: /*DHUl*/
2354 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2355 if (gen_check_privilege(dc)) {
2356 gen_dcache_hit_test4();
2357 }
2358 break;
2359
2360 case 3: /*DIUl*/
2361 HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
2362 if (gen_check_privilege(dc)) {
2363 gen_window_check1(dc, RRI4_S);
2364 }
2365 break;
2366
2367 case 4: /*DIWBc*/
2368 HAS_OPTION(XTENSA_OPTION_DCACHE);
2369 if (gen_check_privilege(dc)) {
2370 gen_window_check1(dc, RRI4_S);
2371 }
2372 break;
2373
2374 case 5: /*DIWBIc*/
2375 HAS_OPTION(XTENSA_OPTION_DCACHE);
2376 if (gen_check_privilege(dc)) {
2377 gen_window_check1(dc, RRI4_S);
2378 }
2379 break;
2380
2381 default: /*reserved*/
2382 RESERVED();
2383 break;
2384
2385 }
2386 break;
2387
2388 #undef gen_dcache_hit_test
2389 #undef gen_dcache_hit_test4
2390 #undef gen_dcache_hit_test8
2391
2392 #define gen_icache_hit_test(w, shift) do { \
2393 if (gen_window_check1(dc, RRI##w##_S)) { \
2394 TCGv_i32 addr = tcg_temp_new_i32(); \
2395 tcg_gen_movi_i32(cpu_pc, dc->pc); \
2396 tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \
2397 RRI##w##_IMM##w << shift); \
2398 gen_helper_itlb_hit_test(cpu_env, addr); \
2399 tcg_temp_free(addr); \
2400 }\
2401 } while (0)
2402
2403 #define gen_icache_hit_test4() gen_icache_hit_test(4, 4)
2404 #define gen_icache_hit_test8() gen_icache_hit_test(8, 2)
2405
2406 case 12: /*IPFc*/
2407 HAS_OPTION(XTENSA_OPTION_ICACHE);
2408 gen_window_check1(dc, RRI8_S);
2409 break;
2410
2411 case 13: /*ICEc*/
2412 switch (OP1) {
2413 case 0: /*IPFLl*/
2414 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2415 if (gen_check_privilege(dc)) {
2416 gen_icache_hit_test4();
2417 }
2418 break;
2419
2420 case 2: /*IHUl*/
2421 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2422 if (gen_check_privilege(dc)) {
2423 gen_icache_hit_test4();
2424 }
2425 break;
2426
2427 case 3: /*IIUl*/
2428 HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
2429 if (gen_check_privilege(dc)) {
2430 gen_window_check1(dc, RRI4_S);
2431 }
2432 break;
2433
2434 default: /*reserved*/
2435 RESERVED();
2436 break;
2437 }
2438 break;
2439
2440 case 14: /*IHIc*/
2441 HAS_OPTION(XTENSA_OPTION_ICACHE);
2442 gen_icache_hit_test8();
2443 break;
2444
2445 case 15: /*IIIc*/
2446 HAS_OPTION(XTENSA_OPTION_ICACHE);
2447 if (gen_check_privilege(dc)) {
2448 gen_window_check1(dc, RRI8_S);
2449 }
2450 break;
2451
2452 default: /*reserved*/
2453 RESERVED();
2454 break;
2455 }
2456 break;
2457
2458 #undef gen_icache_hit_test
2459 #undef gen_icache_hit_test4
2460 #undef gen_icache_hit_test8
2461
2462 case 9: /*L16SI*/
2463 gen_load_store(ld16s, 1);
2464 break;
2465 #undef gen_load_store
2466
2467 case 10: /*MOVI*/
2468 if (gen_window_check1(dc, RRI8_T)) {
2469 tcg_gen_movi_i32(cpu_R[RRI8_T],
2470 RRI8_IMM8 | (RRI8_S << 8) |
2471 ((RRI8_S & 0x8) ? 0xfffff000 : 0));
2472 }
2473 break;
2474
2475 #define gen_load_store_no_hw_align(type) do { \
2476 if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \
2477 TCGv_i32 addr = tcg_temp_local_new_i32(); \
2478 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \
2479 gen_load_store_alignment(dc, 2, addr, true); \
2480 tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
2481 tcg_temp_free(addr); \
2482 } \
2483 } while (0)
2484
2485 case 11: /*L32AIy*/
2486 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
2487 gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/
2488 break;
2489
2490 case 12: /*ADDI*/
2491 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2492 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);
2493 }
2494 break;
2495
2496 case 13: /*ADDMI*/
2497 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2498 tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S],
2499 RRI8_IMM8_SE << 8);
2500 }
2501 break;
2502
2503 case 14: /*S32C1Iy*/
2504 HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE);
2505 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2506 TCGLabel *label = gen_new_label();
2507 TCGv_i32 tmp = tcg_temp_local_new_i32();
2508 TCGv_i32 addr = tcg_temp_local_new_i32();
2509 TCGv_i32 tpc;
2510
2511 tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]);
2512 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
2513 gen_load_store_alignment(dc, 2, addr, true);
2514
2515 gen_advance_ccount(dc);
2516 tpc = tcg_const_i32(dc->pc);
2517 gen_helper_check_atomctl(cpu_env, tpc, addr);
2518 tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring);
2519 tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T],
2520 cpu_SR[SCOMPARE1], label);
2521
2522 tcg_gen_qemu_st32(tmp, addr, dc->cring);
2523
2524 gen_set_label(label);
2525 tcg_temp_free(tpc);
2526 tcg_temp_free(addr);
2527 tcg_temp_free(tmp);
2528 }
2529 break;
2530
2531 case 15: /*S32RIy*/
2532 HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
2533 gen_load_store_no_hw_align(st32); /*TODO release?*/
2534 break;
2535 #undef gen_load_store_no_hw_align
2536
2537 default: /*reserved*/
2538 RESERVED();
2539 break;
2540 }
2541 break;
2542
2543 case 3: /*LSCIp*/
2544 switch (RRI8_R) {
2545 case 0: /*LSIf*/
2546 case 4: /*SSIf*/
2547 case 8: /*LSIUf*/
2548 case 12: /*SSIUf*/
2549 HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
2550 if (gen_window_check1(dc, RRI8_S) &&
2551 gen_check_cpenable(dc, 0)) {
2552 TCGv_i32 addr = tcg_temp_new_i32();
2553 tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
2554 gen_load_store_alignment(dc, 2, addr, false);
2555 if (RRI8_R & 0x4) {
2556 tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring);
2557 } else {
2558 tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring);
2559 }
2560 if (RRI8_R & 0x8) {
2561 tcg_gen_mov_i32(cpu_R[RRI8_S], addr);
2562 }
2563 tcg_temp_free(addr);
2564 }
2565 break;
2566
2567 default: /*reserved*/
2568 RESERVED();
2569 break;
2570 }
2571 break;
2572
2573 case 4: /*MAC16d*/
2574 HAS_OPTION(XTENSA_OPTION_MAC16);
2575 {
2576 enum {
2577 MAC16_UMUL = 0x0,
2578 MAC16_MUL = 0x4,
2579 MAC16_MULA = 0x8,
2580 MAC16_MULS = 0xc,
2581 MAC16_NONE = 0xf,
2582 } op = OP1 & 0xc;
2583 bool is_m1_sr = (OP2 & 0x3) == 2;
2584 bool is_m2_sr = (OP2 & 0xc) == 0;
2585 uint32_t ld_offset = 0;
2586
2587 if (OP2 > 9) {
2588 RESERVED();
2589 }
2590
2591 switch (OP2 & 2) {
2592 case 0: /*MACI?/MACC?*/
2593 is_m1_sr = true;
2594 ld_offset = (OP2 & 1) ? -4 : 4;
2595
2596 if (OP2 >= 8) { /*MACI/MACC*/
2597 if (OP1 == 0) { /*LDINC/LDDEC*/
2598 op = MAC16_NONE;
2599 } else {
2600 RESERVED();
2601 }
2602 } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/
2603 RESERVED();
2604 }
2605 break;
2606
2607 case 2: /*MACD?/MACA?*/
2608 if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/
2609 RESERVED();
2610 }
2611 break;
2612 }
2613
2614 if (op != MAC16_NONE) {
2615 if (!is_m1_sr && !gen_window_check1(dc, RRR_S)) {
2616 break;
2617 }
2618 if (!is_m2_sr && !gen_window_check1(dc, RRR_T)) {
2619 break;
2620 }
2621 }
2622
2623 if (ld_offset && !gen_window_check1(dc, RRR_S)) {
2624 break;
2625 }
2626
2627 {
2628 TCGv_i32 vaddr = tcg_temp_new_i32();
2629 TCGv_i32 mem32 = tcg_temp_new_i32();
2630
2631 if (ld_offset) {
2632 tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset);
2633 gen_load_store_alignment(dc, 2, vaddr, false);
2634 tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring);
2635 }
2636 if (op != MAC16_NONE) {
2637 TCGv_i32 m1 = gen_mac16_m(
2638 is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S],
2639 OP1 & 1, op == MAC16_UMUL);
2640 TCGv_i32 m2 = gen_mac16_m(
2641 is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T],
2642 OP1 & 2, op == MAC16_UMUL);
2643
2644 if (op == MAC16_MUL || op == MAC16_UMUL) {
2645 tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2);
2646 if (op == MAC16_UMUL) {
2647 tcg_gen_movi_i32(cpu_SR[ACCHI], 0);
2648 } else {
2649 tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31);
2650 }
2651 } else {
2652 TCGv_i32 lo = tcg_temp_new_i32();
2653 TCGv_i32 hi = tcg_temp_new_i32();
2654
2655 tcg_gen_mul_i32(lo, m1, m2);
2656 tcg_gen_sari_i32(hi, lo, 31);
2657 if (op == MAC16_MULA) {
2658 tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
2659 cpu_SR[ACCLO], cpu_SR[ACCHI],
2660 lo, hi);
2661 } else {
2662 tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI],
2663 cpu_SR[ACCLO], cpu_SR[ACCHI],
2664 lo, hi);
2665 }
2666 tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]);
2667
2668 tcg_temp_free_i32(lo);
2669 tcg_temp_free_i32(hi);
2670 }
2671 tcg_temp_free(m1);
2672 tcg_temp_free(m2);
2673 }
2674 if (ld_offset) {
2675 tcg_gen_mov_i32(cpu_R[RRR_S], vaddr);
2676 tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32);
2677 }
2678 tcg_temp_free(vaddr);
2679 tcg_temp_free(mem32);
2680 }
2681 }
2682 break;
2683
2684 case 5: /*CALLN*/
2685 switch (CALL_N) {
2686 case 0: /*CALL0*/
2687 tcg_gen_movi_i32(cpu_R[0], dc->next_pc);
2688 gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
2689 break;
2690
2691 case 1: /*CALL4w*/
2692 case 2: /*CALL8w*/
2693 case 3: /*CALL12w*/
2694 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2695 if (gen_window_check1(dc, CALL_N << 2)) {
2696 gen_callwi(dc, CALL_N,
2697 (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
2698 }
2699 break;
2700 }
2701 break;
2702
2703 case 6: /*SI*/
2704 switch (CALL_N) {
2705 case 0: /*J*/
2706 gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0);
2707 break;
2708
2709 case 1: /*BZ*/
2710 if (gen_window_check1(dc, BRI12_S)) {
2711 static const TCGCond cond[] = {
2712 TCG_COND_EQ, /*BEQZ*/
2713 TCG_COND_NE, /*BNEZ*/
2714 TCG_COND_LT, /*BLTZ*/
2715 TCG_COND_GE, /*BGEZ*/
2716 };
2717
2718 gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0,
2719 4 + BRI12_IMM12_SE);
2720 }
2721 break;
2722
2723 case 2: /*BI0*/
2724 if (gen_window_check1(dc, BRI8_S)) {
2725 static const TCGCond cond[] = {
2726 TCG_COND_EQ, /*BEQI*/
2727 TCG_COND_NE, /*BNEI*/
2728 TCG_COND_LT, /*BLTI*/
2729 TCG_COND_GE, /*BGEI*/
2730 };
2731
2732 gen_brcondi(dc, cond[BRI8_M & 3],
2733 cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE);
2734 }
2735 break;
2736
2737 case 3: /*BI1*/
2738 switch (BRI8_M) {
2739 case 0: /*ENTRYw*/
2740 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2741 {
2742 TCGv_i32 pc = tcg_const_i32(dc->pc);
2743 TCGv_i32 s = tcg_const_i32(BRI12_S);
2744 TCGv_i32 imm = tcg_const_i32(BRI12_IMM12);
2745 gen_advance_ccount(dc);
2746 gen_helper_entry(cpu_env, pc, s, imm);
2747 tcg_temp_free(imm);
2748 tcg_temp_free(s);
2749 tcg_temp_free(pc);
2750 /* This can change tb->flags, so exit tb */
2751 gen_jumpi_check_loop_end(dc, -1);
2752 }
2753 break;
2754
2755 case 1: /*B1*/
2756 switch (BRI8_R) {
2757 case 0: /*BFp*/
2758 case 1: /*BTp*/
2759 HAS_OPTION(XTENSA_OPTION_BOOLEAN);
2760 {
2761 TCGv_i32 tmp = tcg_temp_new_i32();
2762 tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S);
2763 gen_brcondi(dc,
2764 BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ,
2765 tmp, 0, 4 + RRI8_IMM8_SE);
2766 tcg_temp_free(tmp);
2767 }
2768 break;
2769
2770 case 8: /*LOOP*/
2771 case 9: /*LOOPNEZ*/
2772 case 10: /*LOOPGTZ*/
2773 HAS_OPTION(XTENSA_OPTION_LOOP);
2774 if (gen_window_check1(dc, RRI8_S)) {
2775 uint32_t lend = dc->pc + RRI8_IMM8 + 4;
2776 TCGv_i32 tmp = tcg_const_i32(lend);
2777
2778 tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
2779 tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc);
2780 gen_helper_wsr_lend(cpu_env, tmp);
2781 tcg_temp_free(tmp);
2782
2783 if (BRI8_R > 8) {
2784 TCGLabel *label = gen_new_label();
2785 tcg_gen_brcondi_i32(
2786 BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT,
2787 cpu_R[RRI8_S], 0, label);
2788 gen_jumpi(dc, lend, 1);
2789 gen_set_label(label);
2790 }
2791
2792 gen_jumpi(dc, dc->next_pc, 0);
2793 }
2794 break;
2795
2796 default: /*reserved*/
2797 RESERVED();
2798 break;
2799
2800 }
2801 break;
2802
2803 case 2: /*BLTUI*/
2804 case 3: /*BGEUI*/
2805 if (gen_window_check1(dc, BRI8_S)) {
2806 gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,
2807 cpu_R[BRI8_S], B4CONSTU[BRI8_R],
2808 4 + BRI8_IMM8_SE);
2809 }
2810 break;
2811 }
2812 break;
2813
2814 }
2815 break;
2816
2817 case 7: /*B*/
2818 {
2819 TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ;
2820
2821 switch (RRI8_R & 7) {
2822 case 0: /*BNONE*/ /*BANY*/
2823 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2824 TCGv_i32 tmp = tcg_temp_new_i32();
2825 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
2826 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2827 tcg_temp_free(tmp);
2828 }
2829 break;
2830
2831 case 1: /*BEQ*/ /*BNE*/
2832 case 2: /*BLT*/ /*BGE*/
2833 case 3: /*BLTU*/ /*BGEU*/
2834 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2835 static const TCGCond cond[] = {
2836 [1] = TCG_COND_EQ,
2837 [2] = TCG_COND_LT,
2838 [3] = TCG_COND_LTU,
2839 [9] = TCG_COND_NE,
2840 [10] = TCG_COND_GE,
2841 [11] = TCG_COND_GEU,
2842 };
2843 gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T],
2844 4 + RRI8_IMM8_SE);
2845 }
2846 break;
2847
2848 case 4: /*BALL*/ /*BNALL*/
2849 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2850 TCGv_i32 tmp = tcg_temp_new_i32();
2851 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
2852 gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T],
2853 4 + RRI8_IMM8_SE);
2854 tcg_temp_free(tmp);
2855 }
2856 break;
2857
2858 case 5: /*BBC*/ /*BBS*/
2859 if (gen_window_check2(dc, RRI8_S, RRI8_T)) {
2860 #ifdef TARGET_WORDS_BIGENDIAN
2861 TCGv_i32 bit = tcg_const_i32(0x80000000);
2862 #else
2863 TCGv_i32 bit = tcg_const_i32(0x00000001);
2864 #endif
2865 TCGv_i32 tmp = tcg_temp_new_i32();
2866 tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f);
2867 #ifdef TARGET_WORDS_BIGENDIAN
2868 tcg_gen_shr_i32(bit, bit, tmp);
2869 #else
2870 tcg_gen_shl_i32(bit, bit, tmp);
2871 #endif
2872 tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit);
2873 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2874 tcg_temp_free(tmp);
2875 tcg_temp_free(bit);
2876 }
2877 break;
2878
2879 case 6: /*BBCI*/ /*BBSI*/
2880 case 7:
2881 if (gen_window_check1(dc, RRI8_S)) {
2882 TCGv_i32 tmp = tcg_temp_new_i32();
2883 tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],
2884 #ifdef TARGET_WORDS_BIGENDIAN
2885 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T));
2886 #else
2887 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T));
2888 #endif
2889 gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE);
2890 tcg_temp_free(tmp);
2891 }
2892 break;
2893
2894 }
2895 }
2896 break;
2897
2898 #define gen_narrow_load_store(type) do { \
2899 if (gen_window_check2(dc, RRRN_S, RRRN_T)) { \
2900 TCGv_i32 addr = tcg_temp_new_i32(); \
2901 tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
2902 gen_load_store_alignment(dc, 2, addr, false); \
2903 tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \
2904 tcg_temp_free(addr); \
2905 } \
2906 } while (0)
2907
2908 case 8: /*L32I.Nn*/
2909 gen_narrow_load_store(ld32u);
2910 break;
2911
2912 case 9: /*S32I.Nn*/
2913 gen_narrow_load_store(st32);
2914 break;
2915 #undef gen_narrow_load_store
2916
2917 case 10: /*ADD.Nn*/
2918 if (gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T)) {
2919 tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]);
2920 }
2921 break;
2922
2923 case 11: /*ADDI.Nn*/
2924 if (gen_window_check2(dc, RRRN_R, RRRN_S)) {
2925 tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S],
2926 RRRN_T ? RRRN_T : -1);
2927 }
2928 break;
2929
2930 case 12: /*ST2n*/
2931 if (!gen_window_check1(dc, RRRN_S)) {
2932 break;
2933 }
2934 if (RRRN_T < 8) { /*MOVI.Nn*/
2935 tcg_gen_movi_i32(cpu_R[RRRN_S],
2936 RRRN_R | (RRRN_T << 4) |
2937 ((RRRN_T & 6) == 6 ? 0xffffff80 : 0));
2938 } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/
2939 TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ;
2940
2941 gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0,
2942 4 + (RRRN_R | ((RRRN_T & 3) << 4)));
2943 }
2944 break;
2945
2946 case 13: /*ST3n*/
2947 switch (RRRN_R) {
2948 case 0: /*MOV.Nn*/
2949 if (gen_window_check2(dc, RRRN_S, RRRN_T)) {
2950 tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]);
2951 }
2952 break;
2953
2954 case 15: /*S3*/
2955 switch (RRRN_T) {
2956 case 0: /*RET.Nn*/
2957 gen_jump(dc, cpu_R[0]);
2958 break;
2959
2960 case 1: /*RETW.Nn*/
2961 HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
2962 {
2963 TCGv_i32 tmp = tcg_const_i32(dc->pc);
2964 gen_advance_ccount(dc);
2965 gen_helper_retw(tmp, cpu_env, tmp);
2966 gen_jump(dc, tmp);
2967 tcg_temp_free(tmp);
2968 }
2969 break;
2970
2971 case 2: /*BREAK.Nn*/
2972 HAS_OPTION(XTENSA_OPTION_DEBUG);
2973 if (dc->debug) {
2974 gen_debug_exception(dc, DEBUGCAUSE_BN);
2975 }
2976 break;
2977
2978 case 3: /*NOP.Nn*/
2979 break;
2980
2981 case 6: /*ILL.Nn*/
2982 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
2983 break;
2984
2985 default: /*reserved*/
2986 RESERVED();
2987 break;
2988 }
2989 break;
2990
2991 default: /*reserved*/
2992 RESERVED();
2993 break;
2994 }
2995 break;
2996
2997 default: /*reserved*/
2998 RESERVED();
2999 break;
3000 }
3001
3002 if (dc->is_jmp == DISAS_NEXT) {
3003 gen_check_loop_end(dc, 0);
3004 }
3005 dc->pc = dc->next_pc;
3006
3007 return;
3008
3009 invalid_opcode:
3010 qemu_log_mask(LOG_GUEST_ERROR, "INVALID(pc = %08x)\n", dc->pc);
3011 gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
3012 #undef HAS_OPTION
3013 }
3014
3015 static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc)
3016 {
3017 uint8_t b0 = cpu_ldub_code(env, dc->pc);
3018 return xtensa_op0_insn_len(OP0);
3019 }
3020
3021 static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc)
3022 {
3023 unsigned i;
3024
3025 for (i = 0; i < dc->config->nibreak; ++i) {
3026 if ((env->sregs[IBREAKENABLE] & (1 << i)) &&
3027 env->sregs[IBREAKA + i] == dc->pc) {
3028 gen_debug_exception(dc, DEBUGCAUSE_IB);
3029 break;
3030 }
3031 }
3032 }
3033
3034 void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb)
3035 {
3036 XtensaCPU *cpu = xtensa_env_get_cpu(env);
3037 CPUState *cs = CPU(cpu);
3038 DisasContext dc;
3039 int insn_count = 0;
3040 int max_insns = tb->cflags & CF_COUNT_MASK;
3041 uint32_t pc_start = tb->pc;
3042 uint32_t next_page_start =
3043 (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
3044
3045 if (max_insns == 0) {
3046 max_insns = CF_COUNT_MASK;
3047 }
3048 if (max_insns > TCG_MAX_INSNS) {
3049 max_insns = TCG_MAX_INSNS;
3050 }
3051
3052 dc.config = env->config;
3053 dc.singlestep_enabled = cs->singlestep_enabled;
3054 dc.tb = tb;
3055 dc.pc = pc_start;
3056 dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK;
3057 dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring;
3058 dc.lbeg = env->sregs[LBEG];
3059 dc.lend = env->sregs[LEND];
3060 dc.is_jmp = DISAS_NEXT;
3061 dc.ccount_delta = 0;
3062 dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG;
3063 dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT;
3064 dc.cpenable = (tb->flags & XTENSA_TBFLAG_CPENABLE_MASK) >>
3065 XTENSA_TBFLAG_CPENABLE_SHIFT;
3066 dc.window = ((tb->flags & XTENSA_TBFLAG_WINDOW_MASK) >>
3067 XTENSA_TBFLAG_WINDOW_SHIFT);
3068
3069 init_litbase(&dc);
3070 init_sar_tracker(&dc);
3071 if (dc.icount) {
3072 dc.next_icount = tcg_temp_local_new_i32();
3073 }
3074
3075 gen_tb_start(tb);
3076
3077 if (tb->flags & XTENSA_TBFLAG_EXCEPTION) {
3078 tcg_gen_movi_i32(cpu_pc, dc.pc);
3079 gen_exception(&dc, EXCP_DEBUG);
3080 }
3081
3082 do {
3083 tcg_gen_insn_start(dc.pc);
3084 ++insn_count;
3085
3086 ++dc.ccount_delta;
3087
3088 if (unlikely(cpu_breakpoint_test(cs, dc.pc, BP_ANY))) {
3089 tcg_gen_movi_i32(cpu_pc, dc.pc);
3090 gen_exception(&dc, EXCP_DEBUG);
3091 dc.is_jmp = DISAS_UPDATE;
3092 /* The address covered by the breakpoint must be included in
3093 [tb->pc, tb->pc + tb->size) in order to for it to be
3094 properly cleared -- thus we increment the PC here so that
3095 the logic setting tb->size below does the right thing. */
3096 dc.pc += 2;
3097 break;
3098 }
3099
3100 if (insn_count == max_insns && (tb->cflags & CF_LAST_IO)) {
3101 gen_io_start();
3102 }
3103
3104 if (dc.icount) {
3105 TCGLabel *label = gen_new_label();
3106
3107 tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1);
3108 tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label);
3109 tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]);
3110 if (dc.debug) {
3111 gen_debug_exception(&dc, DEBUGCAUSE_IC);
3112 }
3113 gen_set_label(label);
3114 }
3115
3116 if (dc.debug) {
3117 gen_ibreak_check(env, &dc);
3118 }
3119
3120 disas_xtensa_insn(env, &dc);
3121 if (dc.icount) {
3122 tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount);
3123 }
3124 if (cs->singlestep_enabled) {
3125 tcg_gen_movi_i32(cpu_pc, dc.pc);
3126 gen_exception(&dc, EXCP_DEBUG);
3127 break;
3128 }
3129 } while (dc.is_jmp == DISAS_NEXT &&
3130 insn_count < max_insns &&
3131 dc.pc < next_page_start &&
3132 dc.pc + xtensa_insn_len(env, &dc) <= next_page_start &&
3133 !tcg_op_buf_full());
3134
3135 reset_litbase(&dc);
3136 reset_sar_tracker(&dc);
3137 if (dc.icount) {
3138 tcg_temp_free(dc.next_icount);
3139 }
3140
3141 if (tb->cflags & CF_LAST_IO) {
3142 gen_io_end();
3143 }
3144
3145 if (dc.is_jmp == DISAS_NEXT) {
3146 gen_jumpi(&dc, dc.pc, 0);
3147 }
3148 gen_tb_end(tb, insn_count);
3149
3150 #ifdef DEBUG_DISAS
3151 if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
3152 qemu_log("----------------\n");
3153 qemu_log("IN: %s\n", lookup_symbol(pc_start));
3154 log_target_disas(cs, pc_start, dc.pc - pc_start, 0);
3155 qemu_log("\n");
3156 }
3157 #endif
3158 tb->size = dc.pc - pc_start;
3159 tb->icount = insn_count;
3160 }
3161
3162 void xtensa_cpu_dump_state(CPUState *cs, FILE *f,
3163 fprintf_function cpu_fprintf, int flags)
3164 {
3165 XtensaCPU *cpu = XTENSA_CPU(cs);
3166 CPUXtensaState *env = &cpu->env;
3167 int i, j;
3168
3169 cpu_fprintf(f, "PC=%08x\n\n", env->pc);
3170
3171 for (i = j = 0; i < 256; ++i) {
3172 if (xtensa_option_bits_enabled(env->config, sregnames[i].opt_bits)) {
3173 cpu_fprintf(f, "%12s=%08x%c", sregnames[i].name, env->sregs[i],
3174 (j++ % 4) == 3 ? '\n' : ' ');
3175 }
3176 }
3177
3178 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
3179
3180 for (i = j = 0; i < 256; ++i) {
3181 if (xtensa_option_bits_enabled(env->config, uregnames[i].opt_bits)) {
3182 cpu_fprintf(f, "%s=%08x%c", uregnames[i].name, env->uregs[i],
3183 (j++ % 4) == 3 ? '\n' : ' ');
3184 }
3185 }
3186
3187 cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n");
3188
3189 for (i = 0; i < 16; ++i) {
3190 cpu_fprintf(f, " A%02d=%08x%c", i, env->regs[i],
3191 (i % 4) == 3 ? '\n' : ' ');
3192 }
3193
3194 cpu_fprintf(f, "\n");
3195
3196 for (i = 0; i < env->config->nareg; ++i) {
3197 cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i],
3198 (i % 4) == 3 ? '\n' : ' ');
3199 }
3200
3201 if (xtensa_option_enabled(env->config, XTENSA_OPTION_FP_COPROCESSOR)) {
3202 cpu_fprintf(f, "\n");
3203
3204 for (i = 0; i < 16; ++i) {
3205 cpu_fprintf(f, "F%02d=%08x (%+10.8e)%c", i,
3206 float32_val(env->fregs[i].f32[FP_F32_LOW]),
3207 *(float *)(env->fregs[i].f32 + FP_F32_LOW),
3208 (i % 2) == 1 ? '\n' : ' ');
3209 }
3210 }
3211 }
3212
3213 void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb,
3214 target_ulong *data)
3215 {
3216 env->pc = data[0];
3217 }
AR7 emulation for QEMU