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net: vlan clients with no fd_can_read() can always receive
[qemu-kvm/fedora.git] / tcg / ppc64 / tcg-target.c
bloba2f85ffc6a01d8afeadbb8d21faa7e3f1b03bc67
1 /*
2 * Tiny Code Generator for QEMU
3 *
4 * Copyright (c) 2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #define TCG_CT_CONST_U32 0x100
26
27 static uint8_t *tb_ret_addr;
28
29 #define FAST_PATH
30
31 #if TARGET_PHYS_ADDR_BITS == 32
32 #define LD_ADDEND LWZ
33 #else
34 #define LD_ADDEND LD
35 #endif
36
37 #if TARGET_LONG_BITS == 32
38 #define LD_ADDR LWZU
39 #define CMP_L 0
40 #else
41 #define LD_ADDR LDU
42 #define CMP_L (1<<21)
43 #endif
44
45 #ifndef NDEBUG
46 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
47 "r0",
48 "r1",
49 "rp",
50 "r3",
51 "r4",
52 "r5",
53 "r6",
54 "r7",
55 "r8",
56 "r9",
57 "r10",
58 "r11",
59 "r12",
60 "r13",
61 "r14",
62 "r15",
63 "r16",
64 "r17",
65 "r18",
66 "r19",
67 "r20",
68 "r21",
69 "r22",
70 "r23",
71 "r24",
72 "r25",
73 "r26",
74 "r27",
75 "r28",
76 "r29",
77 "r30",
78 "r31"
79 };
80 #endif
81
82 static const int tcg_target_reg_alloc_order[] = {
83 TCG_REG_R14,
84 TCG_REG_R15,
85 TCG_REG_R16,
86 TCG_REG_R17,
87 TCG_REG_R18,
88 TCG_REG_R19,
89 TCG_REG_R20,
90 TCG_REG_R21,
91 TCG_REG_R22,
92 TCG_REG_R23,
93 TCG_REG_R28,
94 TCG_REG_R29,
95 TCG_REG_R30,
96 TCG_REG_R31,
97 TCG_REG_R3,
98 TCG_REG_R4,
99 TCG_REG_R5,
100 TCG_REG_R6,
101 TCG_REG_R7,
102 TCG_REG_R8,
103 TCG_REG_R9,
104 TCG_REG_R10,
105 TCG_REG_R11,
106 TCG_REG_R12,
107 TCG_REG_R24,
108 TCG_REG_R25,
109 TCG_REG_R26,
110 TCG_REG_R27
111 };
112
113 static const int tcg_target_call_iarg_regs[] = {
114 TCG_REG_R3,
115 TCG_REG_R4,
116 TCG_REG_R5,
117 TCG_REG_R6,
118 TCG_REG_R7,
119 TCG_REG_R8,
120 TCG_REG_R9,
121 TCG_REG_R10
122 };
123
124 static const int tcg_target_call_oarg_regs[2] = {
125 TCG_REG_R3
126 };
127
128 static const int tcg_target_callee_save_regs[] = {
129 TCG_REG_R14,
130 TCG_REG_R15,
131 TCG_REG_R16,
132 TCG_REG_R17,
133 TCG_REG_R18,
134 TCG_REG_R19,
135 TCG_REG_R20,
136 TCG_REG_R21,
137 TCG_REG_R22,
138 TCG_REG_R23,
139 TCG_REG_R24,
140 TCG_REG_R25,
141 TCG_REG_R26,
142 /* TCG_REG_R27, */ /* currently used for the global env, so no
143 need to save */
144 TCG_REG_R28,
145 TCG_REG_R29,
146 TCG_REG_R30,
147 TCG_REG_R31
148 };
149
150 static uint32_t reloc_pc24_val (void *pc, tcg_target_long target)
151 {
152 tcg_target_long disp;
153
154 disp = target - (tcg_target_long) pc;
155 if ((disp << 38) >> 38 != disp)
156 tcg_abort ();
157
158 return disp & 0x3fffffc;
159 }
160
161 static void reloc_pc24 (void *pc, tcg_target_long target)
162 {
163 *(uint32_t *) pc = (*(uint32_t *) pc & ~0x3fffffc)
164 | reloc_pc24_val (pc, target);
165 }
166
167 static uint16_t reloc_pc14_val (void *pc, tcg_target_long target)
168 {
169 tcg_target_long disp;
170
171 disp = target - (tcg_target_long) pc;
172 if (disp != (int16_t) disp)
173 tcg_abort ();
174
175 return disp & 0xfffc;
176 }
177
178 static void reloc_pc14 (void *pc, tcg_target_long target)
179 {
180 *(uint32_t *) pc = (*(uint32_t *) pc & ~0xfffc)
181 | reloc_pc14_val (pc, target);
182 }
183
184 static void patch_reloc (uint8_t *code_ptr, int type,
185 tcg_target_long value, tcg_target_long addend)
186 {
187 value += addend;
188 switch (type) {
189 case R_PPC_REL14:
190 reloc_pc14 (code_ptr, value);
191 break;
192 case R_PPC_REL24:
193 reloc_pc24 (code_ptr, value);
194 break;
195 default:
196 tcg_abort ();
197 }
198 }
199
200 /* maximum number of register used for input function arguments */
201 static int tcg_target_get_call_iarg_regs_count (int flags)
202 {
203 return ARRAY_SIZE (tcg_target_call_iarg_regs);
204 }
205
206 /* parse target specific constraints */
207 static int target_parse_constraint (TCGArgConstraint *ct, const char **pct_str)
208 {
209 const char *ct_str;
210
211 ct_str = *pct_str;
212 switch (ct_str[0]) {
213 case 'A': case 'B': case 'C': case 'D':
214 ct->ct |= TCG_CT_REG;
215 tcg_regset_set_reg (ct->u.regs, 3 + ct_str[0] - 'A');
216 break;
217 case 'r':
218 ct->ct |= TCG_CT_REG;
219 tcg_regset_set32 (ct->u.regs, 0, 0xffffffff);
220 break;
221 case 'L': /* qemu_ld constraint */
222 ct->ct |= TCG_CT_REG;
223 tcg_regset_set32 (ct->u.regs, 0, 0xffffffff);
224 tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3);
225 #ifdef CONFIG_SOFTMMU
226 tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4);
227 #endif
228 break;
229 case 'S': /* qemu_st constraint */
230 ct->ct |= TCG_CT_REG;
231 tcg_regset_set32 (ct->u.regs, 0, 0xffffffff);
232 tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3);
233 #ifdef CONFIG_SOFTMMU
234 tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4);
235 tcg_regset_reset_reg (ct->u.regs, TCG_REG_R5);
236 #endif
237 break;
238 case 'Z':
239 ct->ct |= TCG_CT_CONST_U32;
240 break;
241 default:
242 return -1;
243 }
244 ct_str++;
245 *pct_str = ct_str;
246 return 0;
247 }
248
249 /* test if a constant matches the constraint */
250 static int tcg_target_const_match (tcg_target_long val,
251 const TCGArgConstraint *arg_ct)
252 {
253 int ct;
254
255 ct = arg_ct->ct;
256 if (ct & TCG_CT_CONST)
257 return 1;
258 else if ((ct & TCG_CT_CONST_U32) && (val == (uint32_t) val))
259 return 1;
260 return 0;
261 }
262
263 #define OPCD(opc) ((opc)<<26)
264 #define XO19(opc) (OPCD(19)|((opc)<<1))
265 #define XO30(opc) (OPCD(30)|((opc)<<2))
266 #define XO31(opc) (OPCD(31)|((opc)<<1))
267 #define XO58(opc) (OPCD(58)|(opc))
268 #define XO62(opc) (OPCD(62)|(opc))
269
270 #define B OPCD( 18)
271 #define BC OPCD( 16)
272 #define LBZ OPCD( 34)
273 #define LHZ OPCD( 40)
274 #define LHA OPCD( 42)
275 #define LWZ OPCD( 32)
276 #define STB OPCD( 38)
277 #define STH OPCD( 44)
278 #define STW OPCD( 36)
279
280 #define STD XO62( 0)
281 #define STDU XO62( 1)
282 #define STDX XO31(149)
283
284 #define LD XO58( 0)
285 #define LDX XO31( 21)
286 #define LDU XO58( 1)
287 #define LWA XO58( 2)
288 #define LWAX XO31(341)
289
290 #define ADDI OPCD( 14)
291 #define ADDIS OPCD( 15)
292 #define ORI OPCD( 24)
293 #define ORIS OPCD( 25)
294 #define XORI OPCD( 26)
295 #define XORIS OPCD( 27)
296 #define ANDI OPCD( 28)
297 #define ANDIS OPCD( 29)
298 #define MULLI OPCD( 7)
299 #define CMPLI OPCD( 10)
300 #define CMPI OPCD( 11)
301
302 #define LWZU OPCD( 33)
303 #define STWU OPCD( 37)
304
305 #define RLWINM OPCD( 21)
306
307 #define RLDICL XO30( 0)
308 #define RLDICR XO30( 1)
309 #define RLDIMI XO30( 3)
310
311 #define BCLR XO19( 16)
312 #define BCCTR XO19(528)
313 #define CRAND XO19(257)
314 #define CRANDC XO19(129)
315 #define CRNAND XO19(225)
316 #define CROR XO19(449)
317
318 #define EXTSB XO31(954)
319 #define EXTSH XO31(922)
320 #define EXTSW XO31(986)
321 #define ADD XO31(266)
322 #define ADDE XO31(138)
323 #define ADDC XO31( 10)
324 #define AND XO31( 28)
325 #define SUBF XO31( 40)
326 #define SUBFC XO31( 8)
327 #define SUBFE XO31(136)
328 #define OR XO31(444)
329 #define XOR XO31(316)
330 #define MULLW XO31(235)
331 #define MULHWU XO31( 11)
332 #define DIVW XO31(491)
333 #define DIVWU XO31(459)
334 #define CMP XO31( 0)
335 #define CMPL XO31( 32)
336 #define LHBRX XO31(790)
337 #define LWBRX XO31(534)
338 #define STHBRX XO31(918)
339 #define STWBRX XO31(662)
340 #define MFSPR XO31(339)
341 #define MTSPR XO31(467)
342 #define SRAWI XO31(824)
343 #define NEG XO31(104)
344
345 #define MULLD XO31(233)
346 #define MULHD XO31( 73)
347 #define MULHDU XO31( 9)
348 #define DIVD XO31(489)
349 #define DIVDU XO31(457)
350
351 #define LBZX XO31( 87)
352 #define LHZX XO31(276)
353 #define LHAX XO31(343)
354 #define LWZX XO31( 23)
355 #define STBX XO31(215)
356 #define STHX XO31(407)
357 #define STWX XO31(151)
358
359 #define SPR(a,b) ((((a)<<5)|(b))<<11)
360 #define LR SPR(8, 0)
361 #define CTR SPR(9, 0)
362
363 #define SLW XO31( 24)
364 #define SRW XO31(536)
365 #define SRAW XO31(792)
366
367 #define SLD XO31( 27)
368 #define SRD XO31(539)
369 #define SRAD XO31(794)
370 #define SRADI XO31(413<<1)
371
372 #define TW XO31( 4)
373 #define TRAP (TW | TO (31))
374
375 #define RT(r) ((r)<<21)
376 #define RS(r) ((r)<<21)
377 #define RA(r) ((r)<<16)
378 #define RB(r) ((r)<<11)
379 #define TO(t) ((t)<<21)
380 #define SH(s) ((s)<<11)
381 #define MB(b) ((b)<<6)
382 #define ME(e) ((e)<<1)
383 #define BO(o) ((o)<<21)
384 #define MB64(b) ((b)<<5)
385
386 #define LK 1
387
388 #define TAB(t,a,b) (RT(t) | RA(a) | RB(b))
389 #define SAB(s,a,b) (RS(s) | RA(a) | RB(b))
390
391 #define BF(n) ((n)<<23)
392 #define BI(n, c) (((c)+((n)*4))<<16)
393 #define BT(n, c) (((c)+((n)*4))<<21)
394 #define BA(n, c) (((c)+((n)*4))<<16)
395 #define BB(n, c) (((c)+((n)*4))<<11)
396
397 #define BO_COND_TRUE BO (12)
398 #define BO_COND_FALSE BO ( 4)
399 #define BO_ALWAYS BO (20)
400
401 enum {
402 CR_LT,
403 CR_GT,
404 CR_EQ,
405 CR_SO
406 };
407
408 static const uint32_t tcg_to_bc[10] = {
409 [TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
410 [TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE,
411 [TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE,
412 [TCG_COND_GE] = BC | BI (7, CR_LT) | BO_COND_FALSE,
413 [TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE,
414 [TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE,
415 [TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
416 [TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
417 [TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
418 [TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
419 };
420
421 static void tcg_out_mov (TCGContext *s, int ret, int arg)
422 {
423 tcg_out32 (s, OR | SAB (arg, ret, arg));
424 }
425
426 static void tcg_out_rld (TCGContext *s, int op, int ra, int rs, int sh, int mb)
427 {
428 sh = SH (sh & 0x1f) | (((sh >> 5) & 1) << 1);
429 mb = MB64 ((mb >> 5) | ((mb << 1) & 0x3f));
430 tcg_out32 (s, op | RA (ra) | RS (rs) | sh | mb);
431 }
432
433 static void tcg_out_movi32 (TCGContext *s, int ret, int32_t arg)
434 {
435 if (arg == (int16_t) arg)
436 tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff));
437 else {
438 tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff));
439 if (arg & 0xffff)
440 tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
441 }
442 }
443
444 static void tcg_out_movi (TCGContext *s, TCGType type,
445 int ret, tcg_target_long arg)
446 {
447 int32_t arg32 = arg;
448
449 if (type == TCG_TYPE_I32 || arg == arg32) {
450 tcg_out_movi32 (s, ret, arg32);
451 }
452 else {
453 if ((uint64_t) arg >> 32) {
454 uint16_t h16 = arg >> 16;
455 uint16_t l16 = arg;
456
457 tcg_out_movi32 (s, ret, arg >> 32);
458 tcg_out_rld (s, RLDICR, ret, ret, 32, 31);
459 if (h16) tcg_out32 (s, ORIS | RS (ret) | RA (ret) | h16);
460 if (l16) tcg_out32 (s, ORI | RS (ret) | RA (ret) | l16);
461 }
462 else {
463 tcg_out_movi32 (s, ret, arg32);
464 if (arg32 < 0)
465 tcg_out_rld (s, RLDICL, ret, ret, 0, 32);
466 }
467 }
468 }
469
470 static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg)
471 {
472 int reg;
473
474 if (const_arg) {
475 reg = 2;
476 tcg_out_movi (s, TCG_TYPE_I64, reg, arg);
477 }
478 else reg = arg;
479
480 tcg_out32 (s, LD | RT (0) | RA (reg));
481 tcg_out32 (s, MTSPR | RA (0) | CTR);
482 tcg_out32 (s, LD | RT (11) | RA (reg) | 16);
483 tcg_out32 (s, LD | RT (2) | RA (reg) | 8);
484 tcg_out32 (s, BCCTR | BO_ALWAYS | LK);
485 }
486
487 static void tcg_out_ldst (TCGContext *s, int ret, int addr,
488 int offset, int op1, int op2)
489 {
490 if (offset == (int16_t) offset)
491 tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
492 else {
493 tcg_out_movi (s, TCG_TYPE_I64, 0, offset);
494 tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
495 }
496 }
497
498 static void tcg_out_ldsta (TCGContext *s, int ret, int addr,
499 int offset, int op1, int op2)
500 {
501 if (offset == (int16_t) (offset & ~3))
502 tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
503 else {
504 tcg_out_movi (s, TCG_TYPE_I64, 0, offset);
505 tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
506 }
507 }
508
509 static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target)
510 {
511 tcg_target_long disp;
512
513 disp = target - (tcg_target_long) s->code_ptr;
514 if ((disp << 38) >> 38 == disp)
515 tcg_out32 (s, B | (disp & 0x3fffffc) | mask);
516 else {
517 tcg_out_movi (s, TCG_TYPE_I64, 0, (tcg_target_long) target);
518 tcg_out32 (s, MTSPR | RS (0) | CTR);
519 tcg_out32 (s, BCCTR | BO_ALWAYS | mask);
520 }
521 }
522
523 #if defined (CONFIG_SOFTMMU)
524
525 #include "../../softmmu_defs.h"
526
527 static void *qemu_ld_helpers[4] = {
528 __ldb_mmu,
529 __ldw_mmu,
530 __ldl_mmu,
531 __ldq_mmu,
532 };
533
534 static void *qemu_st_helpers[4] = {
535 __stb_mmu,
536 __stw_mmu,
537 __stl_mmu,
538 __stq_mmu,
539 };
540
541 static void tcg_out_tlb_read (TCGContext *s, int r0, int r1, int r2,
542 int addr_reg, int s_bits, int offset)
543 {
544 #if TARGET_LONG_BITS == 32
545 tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32);
546
547 tcg_out32 (s, (RLWINM
548 | RA (r0)
549 | RS (addr_reg)
550 | SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
551 | MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
552 | ME (31 - CPU_TLB_ENTRY_BITS)
553 )
554 );
555 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
556 tcg_out32 (s, (LWZU | RT (r1) | RA (r0) | offset));
557 tcg_out32 (s, (RLWINM
558 | RA (r2)
559 | RS (addr_reg)
560 | SH (0)
561 | MB ((32 - s_bits) & 31)
562 | ME (31 - TARGET_PAGE_BITS)
563 )
564 );
565 #else
566 tcg_out_rld (s, RLDICL, r0, addr_reg,
567 64 - TARGET_PAGE_BITS,
568 64 - CPU_TLB_BITS);
569 tcg_out_rld (s, RLDICR, r0, r0,
570 CPU_TLB_ENTRY_BITS,
571 63 - CPU_TLB_ENTRY_BITS);
572
573 tcg_out32 (s, ADD | TAB (r0, r0, TCG_AREG0));
574 tcg_out32 (s, LD_ADDR | RT (r1) | RA (r0) | offset);
575
576 if (!s_bits) {
577 tcg_out_rld (s, RLDICR, r2, addr_reg, 0, 63 - TARGET_PAGE_BITS);
578 }
579 else {
580 tcg_out_rld (s, RLDICL, r2, addr_reg,
581 64 - TARGET_PAGE_BITS,
582 TARGET_PAGE_BITS - s_bits);
583 tcg_out_rld (s, RLDICL, r2, r2, TARGET_PAGE_BITS, 0);
584 }
585 #endif
586 }
587 #endif
588
589 static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
590 {
591 int addr_reg, data_reg, r0, r1, mem_index, s_bits, bswap;
592 #ifdef CONFIG_SOFTMMU
593 int r2;
594 void *label1_ptr, *label2_ptr;
595 #endif
596
597 data_reg = *args++;
598 addr_reg = *args++;
599 mem_index = *args;
600 s_bits = opc & 3;
601
602 #ifdef CONFIG_SOFTMMU
603 r0 = 3;
604 r1 = 4;
605 r2 = 0;
606
607 tcg_out_tlb_read (s, r0, r1, r2, addr_reg, s_bits,
608 offsetof (CPUState, tlb_table[mem_index][0].addr_read));
609
610 tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1) | CMP_L);
611
612 label1_ptr = s->code_ptr;
613 #ifdef FAST_PATH
614 tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
615 #endif
616
617 /* slow path */
618 tcg_out_mov (s, 3, addr_reg);
619 tcg_out_movi (s, TCG_TYPE_I64, 4, mem_index);
620
621 tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
622
623 switch (opc) {
624 case 0|4:
625 tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
626 break;
627 case 1|4:
628 tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
629 break;
630 case 2|4:
631 tcg_out32 (s, EXTSW | RA (data_reg) | RS (3));
632 break;
633 case 0:
634 case 1:
635 case 2:
636 case 3:
637 if (data_reg != 3)
638 tcg_out_mov (s, data_reg, 3);
639 break;
640 }
641 label2_ptr = s->code_ptr;
642 tcg_out32 (s, B);
643
644 /* label1: fast path */
645 #ifdef FAST_PATH
646 reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
647 #endif
648
649 /* r0 now contains &env->tlb_table[mem_index][index].addr_read */
650 tcg_out32 (s, (LD_ADDEND
651 | RT (r0)
652 | RA (r0)
653 | (offsetof (CPUTLBEntry, addend)
654 - offsetof (CPUTLBEntry, addr_read))
655 ));
656 /* r0 = env->tlb_table[mem_index][index].addend */
657 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
658 /* r0 = env->tlb_table[mem_index][index].addend + addr */
659
660 #else /* !CONFIG_SOFTMMU */
661 #if TARGET_LONG_BITS == 32
662 tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32);
663 #endif
664 r0 = addr_reg;
665 r1 = 3;
666 #endif
667
668 #ifdef TARGET_WORDS_BIGENDIAN
669 bswap = 0;
670 #else
671 bswap = 1;
672 #endif
673 switch (opc) {
674 default:
675 case 0:
676 tcg_out32 (s, LBZ | RT (data_reg) | RA (r0));
677 break;
678 case 0|4:
679 tcg_out32 (s, LBZ | RT (data_reg) | RA (r0));
680 tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg));
681 break;
682 case 1:
683 if (bswap) tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0));
684 else tcg_out32 (s, LHZ | RT (data_reg) | RA (r0));
685 break;
686 case 1|4:
687 if (bswap) {
688 tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0));
689 tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg));
690 }
691 else tcg_out32 (s, LHA | RT (data_reg) | RA (r0));
692 break;
693 case 2:
694 if (bswap) tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
695 else tcg_out32 (s, LWZ | RT (data_reg)| RA (r0));
696 break;
697 case 2|4:
698 if (bswap) {
699 tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
700 tcg_out32 (s, EXTSW | RA (data_reg) | RS (data_reg));
701 }
702 else tcg_out32 (s, LWA | RT (data_reg)| RA (r0));
703 break;
704 case 3:
705 if (bswap) {
706 tcg_out_movi32 (s, 0, 4);
707 tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
708 tcg_out32 (s, LWBRX | RT ( r1) | RA (r0));
709 tcg_out_rld (s, RLDIMI, data_reg, r1, 32, 0);
710 }
711 else tcg_out32 (s, LD | RT (data_reg) | RA (r0));
712 break;
713 }
714
715 #ifdef CONFIG_SOFTMMU
716 reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
717 #endif
718 }
719
720 static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc)
721 {
722 int addr_reg, r0, r1, data_reg, mem_index, bswap;
723 #ifdef CONFIG_SOFTMMU
724 int r2;
725 void *label1_ptr, *label2_ptr;
726 #endif
727
728 data_reg = *args++;
729 addr_reg = *args++;
730 mem_index = *args;
731
732 #ifdef CONFIG_SOFTMMU
733 r0 = 3;
734 r1 = 4;
735 r2 = 0;
736
737 tcg_out_tlb_read (s, r0, r1, r2, addr_reg, opc,
738 offsetof (CPUState, tlb_table[mem_index][0].addr_write));
739
740 tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1) | CMP_L);
741
742 label1_ptr = s->code_ptr;
743 #ifdef FAST_PATH
744 tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
745 #endif
746
747 /* slow path */
748 tcg_out_mov (s, 3, addr_reg);
749 tcg_out_rld (s, RLDICL, 4, data_reg, 0, 64 - (1 << (3 + opc)));
750 tcg_out_movi (s, TCG_TYPE_I64, 5, mem_index);
751
752 tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1);
753
754 label2_ptr = s->code_ptr;
755 tcg_out32 (s, B);
756
757 /* label1: fast path */
758 #ifdef FAST_PATH
759 reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
760 #endif
761
762 tcg_out32 (s, (LD_ADDEND
763 | RT (r0)
764 | RA (r0)
765 | (offsetof (CPUTLBEntry, addend)
766 - offsetof (CPUTLBEntry, addr_write))
767 ));
768 /* r0 = env->tlb_table[mem_index][index].addend */
769 tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
770 /* r0 = env->tlb_table[mem_index][index].addend + addr */
771
772 #else /* !CONFIG_SOFTMMU */
773 #if TARGET_LONG_BITS == 32
774 tcg_out_rld (s, RLDICL, addr_reg, addr_reg, 0, 32);
775 #endif
776 r1 = 3;
777 r0 = addr_reg;
778 #endif
779
780 #ifdef TARGET_WORDS_BIGENDIAN
781 bswap = 0;
782 #else
783 bswap = 1;
784 #endif
785 switch (opc) {
786 case 0:
787 tcg_out32 (s, STB | RS (data_reg) | RA (r0));
788 break;
789 case 1:
790 if (bswap) tcg_out32 (s, STHBRX | RS (data_reg) | RA (0) | RB (r0));
791 else tcg_out32 (s, STH | RS (data_reg) | RA (r0));
792 break;
793 case 2:
794 if (bswap) tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0));
795 else tcg_out32 (s, STW | RS (data_reg) | RA (r0));
796 break;
797 case 3:
798 if (bswap) {
799 tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0));
800 tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
801 tcg_out_rld (s, RLDICL, 0, data_reg, 32, 0);
802 tcg_out32 (s, STWBRX | RS (0) | RA (0) | RB (r1));
803 }
804 else tcg_out32 (s, STD | RS (data_reg) | RA (r0));
805 break;
806 }
807
808 #ifdef CONFIG_SOFTMMU
809 reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
810 #endif
811 }
812
813 void tcg_target_qemu_prologue (TCGContext *s)
814 {
815 int i, frame_size;
816 uint64_t addr;
817
818 frame_size = 0
819 + 8 /* back chain */
820 + 8 /* CR */
821 + 8 /* LR */
822 + 8 /* compiler doubleword */
823 + 8 /* link editor doubleword */
824 + 8 /* TOC save area */
825 + TCG_STATIC_CALL_ARGS_SIZE
826 + ARRAY_SIZE (tcg_target_callee_save_regs) * 8
827 ;
828 frame_size = (frame_size + 15) & ~15;
829
830 /* First emit adhoc function descriptor */
831 addr = (uint64_t) s->code_ptr + 24;
832 tcg_out32 (s, addr >> 32); tcg_out32 (s, addr); /* entry point */
833 s->code_ptr += 16; /* skip TOC and environment pointer */
834
835 /* Prologue */
836 tcg_out32 (s, MFSPR | RT (0) | LR);
837 tcg_out32 (s, STDU | RS (1) | RA (1) | (-frame_size & 0xffff));
838 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
839 tcg_out32 (s, (STD
840 | RS (tcg_target_callee_save_regs[i])
841 | RA (1)
842 | (i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE)
843 )
844 );
845 tcg_out32 (s, STD | RS (0) | RA (1) | (frame_size + 16));
846
847 tcg_out32 (s, MTSPR | RS (3) | CTR);
848 tcg_out32 (s, BCCTR | BO_ALWAYS);
849
850 /* Epilogue */
851 tb_ret_addr = s->code_ptr;
852
853 for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
854 tcg_out32 (s, (LD
855 | RT (tcg_target_callee_save_regs[i])
856 | RA (1)
857 | (i * 8 + 48 + TCG_STATIC_CALL_ARGS_SIZE)
858 )
859 );
860 tcg_out32 (s, LD | RT (0) | RA (1) | (frame_size + 16));
861 tcg_out32 (s, MTSPR | RS (0) | LR);
862 tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
863 tcg_out32 (s, BCLR | BO_ALWAYS);
864 }
865
866 static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1,
867 tcg_target_long arg2)
868 {
869 if (type == TCG_TYPE_I32)
870 tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX);
871 else
872 tcg_out_ldsta (s, ret, arg1, arg2, LD, LDX);
873 }
874
875 static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1,
876 tcg_target_long arg2)
877 {
878 if (type == TCG_TYPE_I32)
879 tcg_out_ldst (s, arg, arg1, arg2, STW, STWX);
880 else
881 tcg_out_ldsta (s, arg, arg1, arg2, STD, STDX);
882 }
883
884 static void ppc_addi32 (TCGContext *s, int rt, int ra, tcg_target_long si)
885 {
886 if (!si && rt == ra)
887 return;
888
889 if (si == (int16_t) si)
890 tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
891 else {
892 uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15);
893 tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h);
894 tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
895 }
896 }
897
898 static void ppc_addi64 (TCGContext *s, int rt, int ra, tcg_target_long si)
899 {
900 /* XXX: suboptimal */
901 if (si == (int16_t) si
902 || ((((uint64_t) si >> 31) == 0) && (si & 0x8000) == 0))
903 ppc_addi32 (s, rt, ra, si);
904 else {
905 tcg_out_movi (s, TCG_TYPE_I64, 0, si);
906 tcg_out32 (s, ADD | RT (rt) | RA (ra));
907 }
908 }
909
910 static void tcg_out_addi (TCGContext *s, int reg, tcg_target_long val)
911 {
912 ppc_addi64 (s, reg, reg, val);
913 }
914
915 static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
916 int const_arg2, int cr, int arch64)
917 {
918 int imm;
919 uint32_t op;
920
921 switch (cond) {
922 case TCG_COND_EQ:
923 case TCG_COND_NE:
924 if (const_arg2) {
925 if ((int16_t) arg2 == arg2) {
926 op = CMPI;
927 imm = 1;
928 break;
929 }
930 else if ((uint16_t) arg2 == arg2) {
931 op = CMPLI;
932 imm = 1;
933 break;
934 }
935 }
936 op = CMPL;
937 imm = 0;
938 break;
939
940 case TCG_COND_LT:
941 case TCG_COND_GE:
942 case TCG_COND_LE:
943 case TCG_COND_GT:
944 if (const_arg2) {
945 if ((int16_t) arg2 == arg2) {
946 op = CMPI;
947 imm = 1;
948 break;
949 }
950 }
951 op = CMP;
952 imm = 0;
953 break;
954
955 case TCG_COND_LTU:
956 case TCG_COND_GEU:
957 case TCG_COND_LEU:
958 case TCG_COND_GTU:
959 if (const_arg2) {
960 if ((uint16_t) arg2 == arg2) {
961 op = CMPLI;
962 imm = 1;
963 break;
964 }
965 }
966 op = CMPL;
967 imm = 0;
968 break;
969
970 default:
971 tcg_abort ();
972 }
973 op |= BF (cr) | (arch64 << 21);
974
975 if (imm)
976 tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
977 else {
978 if (const_arg2) {
979 tcg_out_movi (s, TCG_TYPE_I64, 0, arg2);
980 tcg_out32 (s, op | RA (arg1) | RB (0));
981 }
982 else
983 tcg_out32 (s, op | RA (arg1) | RB (arg2));
984 }
985
986 }
987
988 static void tcg_out_bc (TCGContext *s, int bc, int label_index)
989 {
990 TCGLabel *l = &s->labels[label_index];
991
992 if (l->has_value)
993 tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value));
994 else {
995 uint16_t val = *(uint16_t *) &s->code_ptr[2];
996
997 /* Thanks to Andrzej Zaborowski */
998 tcg_out32 (s, bc | (val & 0xfffc));
999 tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0);
1000 }
1001 }
1002
1003 static void tcg_out_brcond (TCGContext *s, int cond,
1004 TCGArg arg1, TCGArg arg2, int const_arg2,
1005 int label_index, int arch64)
1006 {
1007 tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7, arch64);
1008 tcg_out_bc (s, tcg_to_bc[cond], label_index);
1009 }
1010
1011 void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
1012 {
1013 TCGContext s;
1014 unsigned long patch_size;
1015
1016 s.code_ptr = (uint8_t *) jmp_addr;
1017 tcg_out_b (&s, 0, addr);
1018 patch_size = s.code_ptr - (uint8_t *) jmp_addr;
1019 flush_icache_range (jmp_addr, jmp_addr + patch_size);
1020 }
1021
1022 static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args,
1023 const int *const_args)
1024 {
1025 int c;
1026
1027 switch (opc) {
1028 case INDEX_op_exit_tb:
1029 tcg_out_movi (s, TCG_TYPE_I64, TCG_REG_R3, args[0]);
1030 tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr);
1031 break;
1032 case INDEX_op_goto_tb:
1033 if (s->tb_jmp_offset) {
1034 /* direct jump method */
1035
1036 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
1037 s->code_ptr += 28;
1038 }
1039 else {
1040 tcg_abort ();
1041 }
1042 s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
1043 break;
1044 case INDEX_op_br:
1045 {
1046 TCGLabel *l = &s->labels[args[0]];
1047
1048 if (l->has_value) {
1049 tcg_out_b (s, 0, l->u.value);
1050 }
1051 else {
1052 uint32_t val = *(uint32_t *) s->code_ptr;
1053
1054 /* Thanks to Andrzej Zaborowski */
1055 tcg_out32 (s, B | (val & 0x3fffffc));
1056 tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0);
1057 }
1058 }
1059 break;
1060 case INDEX_op_call:
1061 tcg_out_call (s, args[0], const_args[0]);
1062 break;
1063 case INDEX_op_jmp:
1064 if (const_args[0]) {
1065 tcg_out_b (s, 0, args[0]);
1066 }
1067 else {
1068 tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
1069 tcg_out32 (s, BCCTR | BO_ALWAYS);
1070 }
1071 break;
1072 case INDEX_op_movi_i32:
1073 tcg_out_movi (s, TCG_TYPE_I32, args[0], args[1]);
1074 break;
1075 case INDEX_op_movi_i64:
1076 tcg_out_movi (s, TCG_TYPE_I64, args[0], args[1]);
1077 break;
1078 case INDEX_op_ld8u_i32:
1079 case INDEX_op_ld8u_i64:
1080 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1081 break;
1082 case INDEX_op_ld8s_i32:
1083 case INDEX_op_ld8s_i64:
1084 tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
1085 tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0]));
1086 break;
1087 case INDEX_op_ld16u_i32:
1088 case INDEX_op_ld16u_i64:
1089 tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX);
1090 break;
1091 case INDEX_op_ld16s_i32:
1092 case INDEX_op_ld16s_i64:
1093 tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX);
1094 break;
1095 case INDEX_op_ld_i32:
1096 case INDEX_op_ld32u_i64:
1097 tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX);
1098 break;
1099 case INDEX_op_ld32s_i64:
1100 tcg_out_ldsta (s, args[0], args[1], args[2], LWA, LWAX);
1101 break;
1102 case INDEX_op_ld_i64:
1103 tcg_out_ldsta (s, args[0], args[1], args[2], LD, LDX);
1104 break;
1105 case INDEX_op_st8_i32:
1106 case INDEX_op_st8_i64:
1107 tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX);
1108 break;
1109 case INDEX_op_st16_i32:
1110 case INDEX_op_st16_i64:
1111 tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX);
1112 break;
1113 case INDEX_op_st_i32:
1114 case INDEX_op_st32_i64:
1115 tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX);
1116 break;
1117 case INDEX_op_st_i64:
1118 tcg_out_ldsta (s, args[0], args[1], args[2], STD, STDX);
1119 break;
1120
1121 case INDEX_op_add_i32:
1122 if (const_args[2])
1123 ppc_addi32 (s, args[0], args[1], args[2]);
1124 else
1125 tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1126 break;
1127 case INDEX_op_sub_i32:
1128 if (const_args[2])
1129 ppc_addi32 (s, args[0], args[1], -args[2]);
1130 else
1131 tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1132 break;
1133
1134 case INDEX_op_and_i64:
1135 case INDEX_op_and_i32:
1136 if (const_args[2]) {
1137 if ((args[2] & 0xffff) == args[2])
1138 tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | args[2]);
1139 else if ((args[2] & 0xffff0000) == args[2])
1140 tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0])
1141 | ((args[2] >> 16) & 0xffff));
1142 else {
1143 tcg_out_movi (s, (opc == INDEX_op_and_i32
1144 ? TCG_TYPE_I32
1145 : TCG_TYPE_I64),
1146 0, args[2]);
1147 tcg_out32 (s, AND | SAB (args[1], args[0], 0));
1148 }
1149 }
1150 else
1151 tcg_out32 (s, AND | SAB (args[1], args[0], args[2]));
1152 break;
1153 case INDEX_op_or_i64:
1154 case INDEX_op_or_i32:
1155 if (const_args[2]) {
1156 if (args[2] & 0xffff) {
1157 tcg_out32 (s, ORI | RS (args[1]) | RA (args[0])
1158 | (args[2] & 0xffff));
1159 if (args[2] >> 16)
1160 tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0])
1161 | ((args[2] >> 16) & 0xffff));
1162 }
1163 else {
1164 tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0])
1165 | ((args[2] >> 16) & 0xffff));
1166 }
1167 }
1168 else
1169 tcg_out32 (s, OR | SAB (args[1], args[0], args[2]));
1170 break;
1171 case INDEX_op_xor_i64:
1172 case INDEX_op_xor_i32:
1173 if (const_args[2]) {
1174 if ((args[2] & 0xffff) == args[2])
1175 tcg_out32 (s, XORI | RS (args[1]) | RA (args[0])
1176 | (args[2] & 0xffff));
1177 else if ((args[2] & 0xffff0000) == args[2])
1178 tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0])
1179 | ((args[2] >> 16) & 0xffff));
1180 else {
1181 tcg_out_movi (s, (opc == INDEX_op_and_i32
1182 ? TCG_TYPE_I32
1183 : TCG_TYPE_I64),
1184 0, args[2]);
1185 tcg_out32 (s, XOR | SAB (args[1], args[0], 0));
1186 }
1187 }
1188 else
1189 tcg_out32 (s, XOR | SAB (args[1], args[0], args[2]));
1190 break;
1191
1192 case INDEX_op_mul_i32:
1193 if (const_args[2]) {
1194 if (args[2] == (int16_t) args[2])
1195 tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
1196 | (args[2] & 0xffff));
1197 else {
1198 tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
1199 tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
1200 }
1201 }
1202 else
1203 tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
1204 break;
1205
1206 case INDEX_op_div_i32:
1207 tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2]));
1208 break;
1209
1210 case INDEX_op_divu_i32:
1211 tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
1212 break;
1213
1214 case INDEX_op_rem_i32:
1215 tcg_out32 (s, DIVW | TAB (0, args[1], args[2]));
1216 tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1217 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1218 break;
1219
1220 case INDEX_op_remu_i32:
1221 tcg_out32 (s, DIVWU | TAB (0, args[1], args[2]));
1222 tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
1223 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1224 break;
1225
1226 case INDEX_op_shl_i32:
1227 if (const_args[2]) {
1228 tcg_out32 (s, (RLWINM
1229 | RA (args[0])
1230 | RS (args[1])
1231 | SH (args[2])
1232 | MB (0)
1233 | ME (31 - args[2])
1234 )
1235 );
1236 }
1237 else
1238 tcg_out32 (s, SLW | SAB (args[1], args[0], args[2]));
1239 break;
1240 case INDEX_op_shr_i32:
1241 if (const_args[2]) {
1242 tcg_out32 (s, (RLWINM
1243 | RA (args[0])
1244 | RS (args[1])
1245 | SH (32 - args[2])
1246 | MB (args[2])
1247 | ME (31)
1248 )
1249 );
1250 }
1251 else
1252 tcg_out32 (s, SRW | SAB (args[1], args[0], args[2]));
1253 break;
1254 case INDEX_op_sar_i32:
1255 if (const_args[2])
1256 tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2]));
1257 else
1258 tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
1259 break;
1260
1261 case INDEX_op_brcond_i32:
1262 tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 0);
1263 break;
1264
1265 case INDEX_op_brcond_i64:
1266 tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 1);
1267 break;
1268
1269 case INDEX_op_neg_i32:
1270 case INDEX_op_neg_i64:
1271 tcg_out32 (s, NEG | RT (args[0]) | RA (args[1]));
1272 break;
1273
1274 case INDEX_op_add_i64:
1275 if (const_args[2])
1276 ppc_addi64 (s, args[0], args[1], args[2]);
1277 else
1278 tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
1279 break;
1280 case INDEX_op_sub_i64:
1281 if (const_args[2])
1282 ppc_addi64 (s, args[0], args[1], -args[2]);
1283 else
1284 tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
1285 break;
1286
1287 case INDEX_op_shl_i64:
1288 if (const_args[2])
1289 tcg_out_rld (s, RLDICR, args[0], args[1], args[2], 63 - args[2]);
1290 else
1291 tcg_out32 (s, SLD | SAB (args[1], args[0], args[2]));
1292 break;
1293 case INDEX_op_shr_i64:
1294 if (const_args[2])
1295 tcg_out_rld (s, RLDICL, args[0], args[1], 64 - args[2], args[2]);
1296 else
1297 tcg_out32 (s, SRD | SAB (args[1], args[0], args[2]));
1298 break;
1299 case INDEX_op_sar_i64:
1300 if (const_args[2]) {
1301 int sh = SH (args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1);
1302 tcg_out32 (s, SRADI | RA (args[0]) | RS (args[1]) | sh);
1303 }
1304 else
1305 tcg_out32 (s, SRAD | SAB (args[1], args[0], args[2]));
1306 break;
1307
1308 case INDEX_op_mul_i64:
1309 tcg_out32 (s, MULLD | TAB (args[0], args[1], args[2]));
1310 break;
1311 case INDEX_op_div_i64:
1312 tcg_out32 (s, DIVD | TAB (args[0], args[1], args[2]));
1313 break;
1314 case INDEX_op_divu_i64:
1315 tcg_out32 (s, DIVDU | TAB (args[0], args[1], args[2]));
1316 break;
1317 case INDEX_op_rem_i64:
1318 tcg_out32 (s, DIVD | TAB (0, args[1], args[2]));
1319 tcg_out32 (s, MULLD | TAB (0, 0, args[2]));
1320 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1321 break;
1322 case INDEX_op_remu_i64:
1323 tcg_out32 (s, DIVDU | TAB (0, args[1], args[2]));
1324 tcg_out32 (s, MULLD | TAB (0, 0, args[2]));
1325 tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
1326 break;
1327
1328 case INDEX_op_qemu_ld8u:
1329 tcg_out_qemu_ld (s, args, 0);
1330 break;
1331 case INDEX_op_qemu_ld8s:
1332 tcg_out_qemu_ld (s, args, 0 | 4);
1333 break;
1334 case INDEX_op_qemu_ld16u:
1335 tcg_out_qemu_ld (s, args, 1);
1336 break;
1337 case INDEX_op_qemu_ld16s:
1338 tcg_out_qemu_ld (s, args, 1 | 4);
1339 break;
1340 case INDEX_op_qemu_ld32u:
1341 tcg_out_qemu_ld (s, args, 2);
1342 break;
1343 case INDEX_op_qemu_ld32s:
1344 tcg_out_qemu_ld (s, args, 2 | 4);
1345 break;
1346 case INDEX_op_qemu_ld64:
1347 tcg_out_qemu_ld (s, args, 3);
1348 break;
1349 case INDEX_op_qemu_st8:
1350 tcg_out_qemu_st (s, args, 0);
1351 break;
1352 case INDEX_op_qemu_st16:
1353 tcg_out_qemu_st (s, args, 1);
1354 break;
1355 case INDEX_op_qemu_st32:
1356 tcg_out_qemu_st (s, args, 2);
1357 break;
1358 case INDEX_op_qemu_st64:
1359 tcg_out_qemu_st (s, args, 3);
1360 break;
1361
1362 case INDEX_op_ext8s_i32:
1363 case INDEX_op_ext8s_i64:
1364 c = EXTSB;
1365 goto gen_ext;
1366 case INDEX_op_ext16s_i32:
1367 case INDEX_op_ext16s_i64:
1368 c = EXTSH;
1369 goto gen_ext;
1370 case INDEX_op_ext32s_i64:
1371 c = EXTSW;
1372 goto gen_ext;
1373 gen_ext:
1374 tcg_out32 (s, c | RS (args[1]) | RA (args[0]));
1375 break;
1376
1377 default:
1378 tcg_dump_ops (s, stderr);
1379 tcg_abort ();
1380 }
1381 }
1382
1383 static const TCGTargetOpDef ppc_op_defs[] = {
1384 { INDEX_op_exit_tb, { } },
1385 { INDEX_op_goto_tb, { } },
1386 { INDEX_op_call, { "ri" } },
1387 { INDEX_op_jmp, { "ri" } },
1388 { INDEX_op_br, { } },
1389
1390 { INDEX_op_mov_i32, { "r", "r" } },
1391 { INDEX_op_mov_i64, { "r", "r" } },
1392 { INDEX_op_movi_i32, { "r" } },
1393 { INDEX_op_movi_i64, { "r" } },
1394
1395 { INDEX_op_ld8u_i32, { "r", "r" } },
1396 { INDEX_op_ld8s_i32, { "r", "r" } },
1397 { INDEX_op_ld16u_i32, { "r", "r" } },
1398 { INDEX_op_ld16s_i32, { "r", "r" } },
1399 { INDEX_op_ld_i32, { "r", "r" } },
1400 { INDEX_op_ld_i64, { "r", "r" } },
1401 { INDEX_op_st8_i32, { "r", "r" } },
1402 { INDEX_op_st8_i64, { "r", "r" } },
1403 { INDEX_op_st16_i32, { "r", "r" } },
1404 { INDEX_op_st16_i64, { "r", "r" } },
1405 { INDEX_op_st_i32, { "r", "r" } },
1406 { INDEX_op_st_i64, { "r", "r" } },
1407 { INDEX_op_st32_i64, { "r", "r" } },
1408
1409 { INDEX_op_ld8u_i64, { "r", "r" } },
1410 { INDEX_op_ld8s_i64, { "r", "r" } },
1411 { INDEX_op_ld16u_i64, { "r", "r" } },
1412 { INDEX_op_ld16s_i64, { "r", "r" } },
1413 { INDEX_op_ld32u_i64, { "r", "r" } },
1414 { INDEX_op_ld32s_i64, { "r", "r" } },
1415 { INDEX_op_ld_i64, { "r", "r" } },
1416
1417 { INDEX_op_add_i32, { "r", "r", "ri" } },
1418 { INDEX_op_mul_i32, { "r", "r", "ri" } },
1419 { INDEX_op_div_i32, { "r", "r", "r" } },
1420 { INDEX_op_divu_i32, { "r", "r", "r" } },
1421 { INDEX_op_rem_i32, { "r", "r", "r" } },
1422 { INDEX_op_remu_i32, { "r", "r", "r" } },
1423 { INDEX_op_sub_i32, { "r", "r", "ri" } },
1424 { INDEX_op_and_i32, { "r", "r", "ri" } },
1425 { INDEX_op_or_i32, { "r", "r", "ri" } },
1426 { INDEX_op_xor_i32, { "r", "r", "ri" } },
1427
1428 { INDEX_op_shl_i32, { "r", "r", "ri" } },
1429 { INDEX_op_shr_i32, { "r", "r", "ri" } },
1430 { INDEX_op_sar_i32, { "r", "r", "ri" } },
1431
1432 { INDEX_op_brcond_i32, { "r", "ri" } },
1433 { INDEX_op_brcond_i64, { "r", "ri" } },
1434
1435 { INDEX_op_neg_i32, { "r", "r" } },
1436
1437 { INDEX_op_add_i64, { "r", "r", "ri" } },
1438 { INDEX_op_sub_i64, { "r", "r", "ri" } },
1439 { INDEX_op_and_i64, { "r", "r", "rZ" } },
1440 { INDEX_op_or_i64, { "r", "r", "rZ" } },
1441 { INDEX_op_xor_i64, { "r", "r", "rZ" } },
1442
1443 { INDEX_op_shl_i64, { "r", "r", "ri" } },
1444 { INDEX_op_shr_i64, { "r", "r", "ri" } },
1445 { INDEX_op_sar_i64, { "r", "r", "ri" } },
1446
1447 { INDEX_op_mul_i64, { "r", "r", "r" } },
1448 { INDEX_op_div_i64, { "r", "r", "r" } },
1449 { INDEX_op_divu_i64, { "r", "r", "r" } },
1450 { INDEX_op_rem_i64, { "r", "r", "r" } },
1451 { INDEX_op_remu_i64, { "r", "r", "r" } },
1452
1453 { INDEX_op_neg_i64, { "r", "r" } },
1454
1455 { INDEX_op_qemu_ld8u, { "r", "L" } },
1456 { INDEX_op_qemu_ld8s, { "r", "L" } },
1457 { INDEX_op_qemu_ld16u, { "r", "L" } },
1458 { INDEX_op_qemu_ld16s, { "r", "L" } },
1459 { INDEX_op_qemu_ld32u, { "r", "L" } },
1460 { INDEX_op_qemu_ld32s, { "r", "L" } },
1461 { INDEX_op_qemu_ld64, { "r", "L" } },
1462
1463 { INDEX_op_qemu_st8, { "S", "S" } },
1464 { INDEX_op_qemu_st16, { "S", "S" } },
1465 { INDEX_op_qemu_st32, { "S", "S" } },
1466 { INDEX_op_qemu_st64, { "S", "S", "S" } },
1467
1468 { INDEX_op_ext8s_i32, { "r", "r" } },
1469 { INDEX_op_ext16s_i32, { "r", "r" } },
1470 { INDEX_op_ext8s_i64, { "r", "r" } },
1471 { INDEX_op_ext16s_i64, { "r", "r" } },
1472 { INDEX_op_ext32s_i64, { "r", "r" } },
1473
1474 { -1 },
1475 };
1476
1477 void tcg_target_init (TCGContext *s)
1478 {
1479 tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
1480 tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
1481 tcg_regset_set32 (tcg_target_call_clobber_regs, 0,
1482 (1 << TCG_REG_R0) |
1483 (1 << TCG_REG_R3) |
1484 (1 << TCG_REG_R4) |
1485 (1 << TCG_REG_R5) |
1486 (1 << TCG_REG_R6) |
1487 (1 << TCG_REG_R7) |
1488 (1 << TCG_REG_R8) |
1489 (1 << TCG_REG_R9) |
1490 (1 << TCG_REG_R10) |
1491 (1 << TCG_REG_R11) |
1492 (1 << TCG_REG_R12)
1493 );
1494
1495 tcg_regset_clear (s->reserved_regs);
1496 tcg_regset_set_reg (s->reserved_regs, TCG_REG_R0);
1497 tcg_regset_set_reg (s->reserved_regs, TCG_REG_R1);
1498 tcg_regset_set_reg (s->reserved_regs, TCG_REG_R2);
1499 tcg_regset_set_reg (s->reserved_regs, TCG_REG_R13);
1500
1501 tcg_add_target_add_op_defs (ppc_op_defs);
1502 }
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