2 * Tiny Code Generator for QEMU
4 * Copyright (c) 2008 Andrzej Zaborowski
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
25 #if defined(__ARM_ARCH_7__) || \
26 defined(__ARM_ARCH_7A__) || \
27 defined(__ARM_ARCH_7EM__) || \
28 defined(__ARM_ARCH_7M__) || \
29 defined(__ARM_ARCH_7R__)
30 #define USE_ARMV7_INSTRUCTIONS
33 #if defined(USE_ARMV7_INSTRUCTIONS) || \
34 defined(__ARM_ARCH_6J__) || \
35 defined(__ARM_ARCH_6K__) || \
36 defined(__ARM_ARCH_6T2__) || \
37 defined(__ARM_ARCH_6Z__) || \
38 defined(__ARM_ARCH_6ZK__)
39 #define USE_ARMV6_INSTRUCTIONS
42 #if defined(USE_ARMV6_INSTRUCTIONS) || \
43 defined(__ARM_ARCH_5T__) || \
44 defined(__ARM_ARCH_5TE__) || \
45 defined(__ARM_ARCH_5TEJ__)
46 #define USE_ARMV5_INSTRUCTIONS
49 #ifdef USE_ARMV5_INSTRUCTIONS
50 static const int use_armv5_instructions = 1;
52 static const int use_armv5_instructions = 0;
54 #undef USE_ARMV5_INSTRUCTIONS
56 #ifdef USE_ARMV6_INSTRUCTIONS
57 static const int use_armv6_instructions = 1;
59 static const int use_armv6_instructions = 0;
61 #undef USE_ARMV6_INSTRUCTIONS
63 #ifdef USE_ARMV7_INSTRUCTIONS
64 static const int use_armv7_instructions = 1;
66 static const int use_armv7_instructions = 0;
68 #undef USE_ARMV7_INSTRUCTIONS
71 static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
91 static const int tcg_target_reg_alloc_order[] = {
109 static const int tcg_target_call_iarg_regs[4] = {
110 TCG_REG_R0, TCG_REG_R1, TCG_REG_R2, TCG_REG_R3
112 static const int tcg_target_call_oarg_regs[2] = {
113 TCG_REG_R0, TCG_REG_R1
116 static inline void reloc_abs32(void *code_ptr, tcg_target_long target)
118 *(uint32_t *) code_ptr = target;
121 static inline void reloc_pc24(void *code_ptr, tcg_target_long target)
123 uint32_t offset = ((target - ((tcg_target_long) code_ptr + 8)) >> 2);
125 *(uint32_t *) code_ptr = ((*(uint32_t *) code_ptr) & ~0xffffff)
126 | (offset & 0xffffff);
129 static void patch_reloc(uint8_t *code_ptr, int type,
130 tcg_target_long value, tcg_target_long addend)
134 reloc_abs32(code_ptr, value);
143 reloc_pc24(code_ptr, value);
148 /* maximum number of register used for input function arguments */
149 static inline int tcg_target_get_call_iarg_regs_count(int flags)
154 /* parse target specific constraints */
155 static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
162 ct->ct |= TCG_CT_CONST_ARM;
166 ct->ct |= TCG_CT_REG;
167 tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
170 /* qemu_ld address */
172 ct->ct |= TCG_CT_REG;
173 tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
174 #ifdef CONFIG_SOFTMMU
175 /* r0 and r1 will be overwritten when reading the tlb entry,
176 so don't use these. */
177 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
178 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
182 ct->ct |= TCG_CT_REG;
183 tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
184 #ifdef CONFIG_SOFTMMU
185 /* r1 is still needed to load data_reg or data_reg2,
187 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
191 /* qemu_st address & data_reg */
193 ct->ct |= TCG_CT_REG;
194 tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
195 /* r0 and r1 will be overwritten when reading the tlb entry
196 (softmmu only) and doing the byte swapping, so don't
198 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
199 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
201 /* qemu_st64 data_reg2 */
203 ct->ct |= TCG_CT_REG;
204 tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
205 /* r0 and r1 will be overwritten when reading the tlb entry
206 (softmmu only) and doing the byte swapping, so don't
208 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
209 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
210 #ifdef CONFIG_SOFTMMU
211 /* r2 is still needed to load data_reg, so don't use it. */
212 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R2);
225 static inline uint32_t rotl(uint32_t val, int n)
227 return (val << n) | (val >> (32 - n));
230 /* ARM immediates for ALU instructions are made of an unsigned 8-bit
231 right-rotated by an even amount between 0 and 30. */
232 static inline int encode_imm(uint32_t imm)
236 /* simple case, only lower bits */
237 if ((imm & ~0xff) == 0)
239 /* then try a simple even shift */
240 shift = ctz32(imm) & ~1;
241 if (((imm >> shift) & ~0xff) == 0)
243 /* now try harder with rotations */
244 if ((rotl(imm, 2) & ~0xff) == 0)
246 if ((rotl(imm, 4) & ~0xff) == 0)
248 if ((rotl(imm, 6) & ~0xff) == 0)
250 /* imm can't be encoded */
254 static inline int check_fit_imm(uint32_t imm)
256 return encode_imm(imm) >= 0;
259 /* Test if a constant matches the constraint.
260 * TODO: define constraints for:
262 * ldr/str offset: between -0xfff and 0xfff
263 * ldrh/strh offset: between -0xff and 0xff
264 * mov operand2: values represented with x << (2 * y), x < 0x100
265 * add, sub, eor...: ditto
267 static inline int tcg_target_const_match(tcg_target_long val,
268 const TCGArgConstraint *arg_ct)
272 if (ct & TCG_CT_CONST)
274 else if ((ct & TCG_CT_CONST_ARM) && check_fit_imm(val))
280 enum arm_data_opc_e {
298 #define TO_CPSR(opc) \
299 ((opc == ARITH_CMP || opc == ARITH_CMN || opc == ARITH_TST) << 20)
301 #define SHIFT_IMM_LSL(im) (((im) << 7) | 0x00)
302 #define SHIFT_IMM_LSR(im) (((im) << 7) | 0x20)
303 #define SHIFT_IMM_ASR(im) (((im) << 7) | 0x40)
304 #define SHIFT_IMM_ROR(im) (((im) << 7) | 0x60)
305 #define SHIFT_REG_LSL(rs) (((rs) << 8) | 0x10)
306 #define SHIFT_REG_LSR(rs) (((rs) << 8) | 0x30)
307 #define SHIFT_REG_ASR(rs) (((rs) << 8) | 0x50)
308 #define SHIFT_REG_ROR(rs) (((rs) << 8) | 0x70)
310 enum arm_cond_code_e {
313 COND_CS = 0x2, /* Unsigned greater or equal */
314 COND_CC = 0x3, /* Unsigned less than */
315 COND_MI = 0x4, /* Negative */
316 COND_PL = 0x5, /* Zero or greater */
317 COND_VS = 0x6, /* Overflow */
318 COND_VC = 0x7, /* No overflow */
319 COND_HI = 0x8, /* Unsigned greater than */
320 COND_LS = 0x9, /* Unsigned less or equal */
328 static const uint8_t tcg_cond_to_arm_cond[10] = {
329 [TCG_COND_EQ] = COND_EQ,
330 [TCG_COND_NE] = COND_NE,
331 [TCG_COND_LT] = COND_LT,
332 [TCG_COND_GE] = COND_GE,
333 [TCG_COND_LE] = COND_LE,
334 [TCG_COND_GT] = COND_GT,
336 [TCG_COND_LTU] = COND_CC,
337 [TCG_COND_GEU] = COND_CS,
338 [TCG_COND_LEU] = COND_LS,
339 [TCG_COND_GTU] = COND_HI,
342 static inline void tcg_out_bx(TCGContext *s, int cond, int rn)
344 tcg_out32(s, (cond << 28) | 0x012fff10 | rn);
347 static inline void tcg_out_b(TCGContext *s, int cond, int32_t offset)
349 tcg_out32(s, (cond << 28) | 0x0a000000 |
350 (((offset - 8) >> 2) & 0x00ffffff));
353 static inline void tcg_out_b_noaddr(TCGContext *s, int cond)
355 #ifdef HOST_WORDS_BIGENDIAN
356 tcg_out8(s, (cond << 4) | 0x0a);
360 tcg_out8(s, (cond << 4) | 0x0a);
364 static inline void tcg_out_bl(TCGContext *s, int cond, int32_t offset)
366 tcg_out32(s, (cond << 28) | 0x0b000000 |
367 (((offset - 8) >> 2) & 0x00ffffff));
370 static inline void tcg_out_blx(TCGContext *s, int cond, int rn)
372 tcg_out32(s, (cond << 28) | 0x012fff30 | rn);
375 static inline void tcg_out_dat_reg(TCGContext *s,
376 int cond, int opc, int rd, int rn, int rm, int shift)
378 tcg_out32(s, (cond << 28) | (0 << 25) | (opc << 21) | TO_CPSR(opc) |
379 (rn << 16) | (rd << 12) | shift | rm);
382 static inline void tcg_out_dat_reg2(TCGContext *s,
383 int cond, int opc0, int opc1, int rd0, int rd1,
384 int rn0, int rn1, int rm0, int rm1, int shift)
386 if (rd0 == rn1 || rd0 == rm1) {
387 tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
388 (rn0 << 16) | (8 << 12) | shift | rm0);
389 tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
390 (rn1 << 16) | (rd1 << 12) | shift | rm1);
391 tcg_out_dat_reg(s, cond, ARITH_MOV,
392 rd0, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
394 tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
395 (rn0 << 16) | (rd0 << 12) | shift | rm0);
396 tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
397 (rn1 << 16) | (rd1 << 12) | shift | rm1);
401 static inline void tcg_out_dat_imm(TCGContext *s,
402 int cond, int opc, int rd, int rn, int im)
404 tcg_out32(s, (cond << 28) | (1 << 25) | (opc << 21) | TO_CPSR(opc) |
405 (rn << 16) | (rd << 12) | im);
408 static inline void tcg_out_movi32(TCGContext *s,
409 int cond, int rd, int32_t arg)
411 /* TODO: This is very suboptimal, we can easily have a constant
412 * pool somewhere after all the instructions. */
414 if (arg < 0 && arg > -0x100)
415 return tcg_out_dat_imm(s, cond, ARITH_MVN, rd, 0, (~arg) & 0xff);
417 if (use_armv7_instructions) {
420 tcg_out32(s, (cond << 28) | 0x03000000 | (rd << 12)
421 | ((arg << 4) & 0x000f0000) | (arg & 0xfff));
422 if (arg & 0xffff0000)
424 tcg_out32(s, (cond << 28) | 0x03400000 | (rd << 12)
425 | ((arg >> 12) & 0x000f0000) | ((arg >> 16) & 0xfff));
427 tcg_out_dat_imm(s, cond, ARITH_MOV, rd, 0, arg & 0xff);
428 if (arg & 0x0000ff00)
429 tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
430 ((arg >> 8) & 0xff) | 0xc00);
431 if (arg & 0x00ff0000)
432 tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
433 ((arg >> 16) & 0xff) | 0x800);
434 if (arg & 0xff000000)
435 tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
436 ((arg >> 24) & 0xff) | 0x400);
440 static inline void tcg_out_mul32(TCGContext *s,
441 int cond, int rd, int rs, int rm)
444 tcg_out32(s, (cond << 28) | (rd << 16) | (0 << 12) |
445 (rs << 8) | 0x90 | rm);
447 tcg_out32(s, (cond << 28) | (rd << 16) | (0 << 12) |
448 (rm << 8) | 0x90 | rs);
450 tcg_out32(s, (cond << 28) | ( 8 << 16) | (0 << 12) |
451 (rs << 8) | 0x90 | rm);
452 tcg_out_dat_reg(s, cond, ARITH_MOV,
453 rd, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
457 static inline void tcg_out_umull32(TCGContext *s,
458 int cond, int rd0, int rd1, int rs, int rm)
460 if (rd0 != rm && rd1 != rm)
461 tcg_out32(s, (cond << 28) | 0x800090 |
462 (rd1 << 16) | (rd0 << 12) | (rs << 8) | rm);
463 else if (rd0 != rs && rd1 != rs)
464 tcg_out32(s, (cond << 28) | 0x800090 |
465 (rd1 << 16) | (rd0 << 12) | (rm << 8) | rs);
467 tcg_out_dat_reg(s, cond, ARITH_MOV,
468 TCG_REG_R8, 0, rm, SHIFT_IMM_LSL(0));
469 tcg_out32(s, (cond << 28) | 0x800098 |
470 (rd1 << 16) | (rd0 << 12) | (rs << 8));
474 static inline void tcg_out_smull32(TCGContext *s,
475 int cond, int rd0, int rd1, int rs, int rm)
477 if (rd0 != rm && rd1 != rm)
478 tcg_out32(s, (cond << 28) | 0xc00090 |
479 (rd1 << 16) | (rd0 << 12) | (rs << 8) | rm);
480 else if (rd0 != rs && rd1 != rs)
481 tcg_out32(s, (cond << 28) | 0xc00090 |
482 (rd1 << 16) | (rd0 << 12) | (rm << 8) | rs);
484 tcg_out_dat_reg(s, cond, ARITH_MOV,
485 TCG_REG_R8, 0, rm, SHIFT_IMM_LSL(0));
486 tcg_out32(s, (cond << 28) | 0xc00098 |
487 (rd1 << 16) | (rd0 << 12) | (rs << 8));
491 static inline void tcg_out_ext8s(TCGContext *s, int cond,
494 if (use_armv6_instructions) {
496 tcg_out32(s, 0x06af0070 | (cond << 28) | (rd << 12) | rn);
498 tcg_out_dat_reg(s, cond, ARITH_MOV,
499 rd, 0, rn, SHIFT_IMM_LSL(24));
500 tcg_out_dat_reg(s, cond, ARITH_MOV,
501 rd, 0, rd, SHIFT_IMM_ASR(24));
505 static inline void tcg_out_ext8u(TCGContext *s, int cond,
508 tcg_out_dat_imm(s, cond, ARITH_AND, rd, rn, 0xff);
511 static inline void tcg_out_ext16s(TCGContext *s, int cond,
514 if (use_armv6_instructions) {
516 tcg_out32(s, 0x06bf0070 | (cond << 28) | (rd << 12) | rn);
518 tcg_out_dat_reg(s, cond, ARITH_MOV,
519 rd, 0, rn, SHIFT_IMM_LSL(16));
520 tcg_out_dat_reg(s, cond, ARITH_MOV,
521 rd, 0, rd, SHIFT_IMM_ASR(16));
525 static inline void tcg_out_ext16u(TCGContext *s, int cond,
528 if (use_armv6_instructions) {
530 tcg_out32(s, 0x06ff0070 | (cond << 28) | (rd << 12) | rn);
532 tcg_out_dat_reg(s, cond, ARITH_MOV,
533 rd, 0, rn, SHIFT_IMM_LSL(16));
534 tcg_out_dat_reg(s, cond, ARITH_MOV,
535 rd, 0, rd, SHIFT_IMM_LSR(16));
539 static inline void tcg_out_bswap16s(TCGContext *s, int cond, int rd, int rn)
541 if (use_armv6_instructions) {
543 tcg_out32(s, 0x06ff0fb0 | (cond << 28) | (rd << 12) | rn);
545 tcg_out_dat_reg(s, cond, ARITH_MOV,
546 TCG_REG_R8, 0, rn, SHIFT_IMM_LSL(24));
547 tcg_out_dat_reg(s, cond, ARITH_MOV,
548 TCG_REG_R8, 0, TCG_REG_R8, SHIFT_IMM_ASR(16));
549 tcg_out_dat_reg(s, cond, ARITH_ORR,
550 rd, TCG_REG_R8, rn, SHIFT_IMM_LSR(8));
554 static inline void tcg_out_bswap16(TCGContext *s, int cond, int rd, int rn)
556 if (use_armv6_instructions) {
558 tcg_out32(s, 0x06bf0fb0 | (cond << 28) | (rd << 12) | rn);
560 tcg_out_dat_reg(s, cond, ARITH_MOV,
561 TCG_REG_R8, 0, rn, SHIFT_IMM_LSL(24));
562 tcg_out_dat_reg(s, cond, ARITH_MOV,
563 TCG_REG_R8, 0, TCG_REG_R8, SHIFT_IMM_LSR(16));
564 tcg_out_dat_reg(s, cond, ARITH_ORR,
565 rd, TCG_REG_R8, rn, SHIFT_IMM_LSR(8));
569 static inline void tcg_out_bswap32(TCGContext *s, int cond, int rd, int rn)
571 if (use_armv6_instructions) {
573 tcg_out32(s, 0x06bf0f30 | (cond << 28) | (rd << 12) | rn);
575 tcg_out_dat_reg(s, cond, ARITH_EOR,
576 TCG_REG_R8, rn, rn, SHIFT_IMM_ROR(16));
577 tcg_out_dat_imm(s, cond, ARITH_BIC,
578 TCG_REG_R8, TCG_REG_R8, 0xff | 0x800);
579 tcg_out_dat_reg(s, cond, ARITH_MOV,
580 rd, 0, rn, SHIFT_IMM_ROR(8));
581 tcg_out_dat_reg(s, cond, ARITH_EOR,
582 rd, rd, TCG_REG_R8, SHIFT_IMM_LSR(8));
586 static inline void tcg_out_ld32_12(TCGContext *s, int cond,
587 int rd, int rn, tcg_target_long im)
590 tcg_out32(s, (cond << 28) | 0x05900000 |
591 (rn << 16) | (rd << 12) | (im & 0xfff));
593 tcg_out32(s, (cond << 28) | 0x05100000 |
594 (rn << 16) | (rd << 12) | ((-im) & 0xfff));
597 static inline void tcg_out_st32_12(TCGContext *s, int cond,
598 int rd, int rn, tcg_target_long im)
601 tcg_out32(s, (cond << 28) | 0x05800000 |
602 (rn << 16) | (rd << 12) | (im & 0xfff));
604 tcg_out32(s, (cond << 28) | 0x05000000 |
605 (rn << 16) | (rd << 12) | ((-im) & 0xfff));
608 static inline void tcg_out_ld32_r(TCGContext *s, int cond,
609 int rd, int rn, int rm)
611 tcg_out32(s, (cond << 28) | 0x07900000 |
612 (rn << 16) | (rd << 12) | rm);
615 static inline void tcg_out_st32_r(TCGContext *s, int cond,
616 int rd, int rn, int rm)
618 tcg_out32(s, (cond << 28) | 0x07800000 |
619 (rn << 16) | (rd << 12) | rm);
622 /* Register pre-increment with base writeback. */
623 static inline void tcg_out_ld32_rwb(TCGContext *s, int cond,
624 int rd, int rn, int rm)
626 tcg_out32(s, (cond << 28) | 0x07b00000 |
627 (rn << 16) | (rd << 12) | rm);
630 static inline void tcg_out_st32_rwb(TCGContext *s, int cond,
631 int rd, int rn, int rm)
633 tcg_out32(s, (cond << 28) | 0x07a00000 |
634 (rn << 16) | (rd << 12) | rm);
637 static inline void tcg_out_ld16u_8(TCGContext *s, int cond,
638 int rd, int rn, tcg_target_long im)
641 tcg_out32(s, (cond << 28) | 0x01d000b0 |
642 (rn << 16) | (rd << 12) |
643 ((im & 0xf0) << 4) | (im & 0xf));
645 tcg_out32(s, (cond << 28) | 0x015000b0 |
646 (rn << 16) | (rd << 12) |
647 (((-im) & 0xf0) << 4) | ((-im) & 0xf));
650 static inline void tcg_out_st16_8(TCGContext *s, int cond,
651 int rd, int rn, tcg_target_long im)
654 tcg_out32(s, (cond << 28) | 0x01c000b0 |
655 (rn << 16) | (rd << 12) |
656 ((im & 0xf0) << 4) | (im & 0xf));
658 tcg_out32(s, (cond << 28) | 0x014000b0 |
659 (rn << 16) | (rd << 12) |
660 (((-im) & 0xf0) << 4) | ((-im) & 0xf));
663 static inline void tcg_out_ld16u_r(TCGContext *s, int cond,
664 int rd, int rn, int rm)
666 tcg_out32(s, (cond << 28) | 0x019000b0 |
667 (rn << 16) | (rd << 12) | rm);
670 static inline void tcg_out_st16_r(TCGContext *s, int cond,
671 int rd, int rn, int rm)
673 tcg_out32(s, (cond << 28) | 0x018000b0 |
674 (rn << 16) | (rd << 12) | rm);
677 static inline void tcg_out_ld16s_8(TCGContext *s, int cond,
678 int rd, int rn, tcg_target_long im)
681 tcg_out32(s, (cond << 28) | 0x01d000f0 |
682 (rn << 16) | (rd << 12) |
683 ((im & 0xf0) << 4) | (im & 0xf));
685 tcg_out32(s, (cond << 28) | 0x015000f0 |
686 (rn << 16) | (rd << 12) |
687 (((-im) & 0xf0) << 4) | ((-im) & 0xf));
690 static inline void tcg_out_ld16s_r(TCGContext *s, int cond,
691 int rd, int rn, int rm)
693 tcg_out32(s, (cond << 28) | 0x019000f0 |
694 (rn << 16) | (rd << 12) | rm);
697 static inline void tcg_out_ld8_12(TCGContext *s, int cond,
698 int rd, int rn, tcg_target_long im)
701 tcg_out32(s, (cond << 28) | 0x05d00000 |
702 (rn << 16) | (rd << 12) | (im & 0xfff));
704 tcg_out32(s, (cond << 28) | 0x05500000 |
705 (rn << 16) | (rd << 12) | ((-im) & 0xfff));
708 static inline void tcg_out_st8_12(TCGContext *s, int cond,
709 int rd, int rn, tcg_target_long im)
712 tcg_out32(s, (cond << 28) | 0x05c00000 |
713 (rn << 16) | (rd << 12) | (im & 0xfff));
715 tcg_out32(s, (cond << 28) | 0x05400000 |
716 (rn << 16) | (rd << 12) | ((-im) & 0xfff));
719 static inline void tcg_out_ld8_r(TCGContext *s, int cond,
720 int rd, int rn, int rm)
722 tcg_out32(s, (cond << 28) | 0x07d00000 |
723 (rn << 16) | (rd << 12) | rm);
726 static inline void tcg_out_st8_r(TCGContext *s, int cond,
727 int rd, int rn, int rm)
729 tcg_out32(s, (cond << 28) | 0x07c00000 |
730 (rn << 16) | (rd << 12) | rm);
733 static inline void tcg_out_ld8s_8(TCGContext *s, int cond,
734 int rd, int rn, tcg_target_long im)
737 tcg_out32(s, (cond << 28) | 0x01d000d0 |
738 (rn << 16) | (rd << 12) |
739 ((im & 0xf0) << 4) | (im & 0xf));
741 tcg_out32(s, (cond << 28) | 0x015000d0 |
742 (rn << 16) | (rd << 12) |
743 (((-im) & 0xf0) << 4) | ((-im) & 0xf));
746 static inline void tcg_out_ld8s_r(TCGContext *s, int cond,
747 int rd, int rn, int rm)
749 tcg_out32(s, (cond << 28) | 0x019000d0 |
750 (rn << 16) | (rd << 12) | rm);
753 static inline void tcg_out_ld32u(TCGContext *s, int cond,
754 int rd, int rn, int32_t offset)
756 if (offset > 0xfff || offset < -0xfff) {
757 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
758 tcg_out_ld32_r(s, cond, rd, rn, TCG_REG_R8);
760 tcg_out_ld32_12(s, cond, rd, rn, offset);
763 static inline void tcg_out_st32(TCGContext *s, int cond,
764 int rd, int rn, int32_t offset)
766 if (offset > 0xfff || offset < -0xfff) {
767 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
768 tcg_out_st32_r(s, cond, rd, rn, TCG_REG_R8);
770 tcg_out_st32_12(s, cond, rd, rn, offset);
773 static inline void tcg_out_ld16u(TCGContext *s, int cond,
774 int rd, int rn, int32_t offset)
776 if (offset > 0xff || offset < -0xff) {
777 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
778 tcg_out_ld16u_r(s, cond, rd, rn, TCG_REG_R8);
780 tcg_out_ld16u_8(s, cond, rd, rn, offset);
783 static inline void tcg_out_ld16s(TCGContext *s, int cond,
784 int rd, int rn, int32_t offset)
786 if (offset > 0xff || offset < -0xff) {
787 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
788 tcg_out_ld16s_r(s, cond, rd, rn, TCG_REG_R8);
790 tcg_out_ld16s_8(s, cond, rd, rn, offset);
793 static inline void tcg_out_st16(TCGContext *s, int cond,
794 int rd, int rn, int32_t offset)
796 if (offset > 0xff || offset < -0xff) {
797 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
798 tcg_out_st16_r(s, cond, rd, rn, TCG_REG_R8);
800 tcg_out_st16_8(s, cond, rd, rn, offset);
803 static inline void tcg_out_ld8u(TCGContext *s, int cond,
804 int rd, int rn, int32_t offset)
806 if (offset > 0xfff || offset < -0xfff) {
807 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
808 tcg_out_ld8_r(s, cond, rd, rn, TCG_REG_R8);
810 tcg_out_ld8_12(s, cond, rd, rn, offset);
813 static inline void tcg_out_ld8s(TCGContext *s, int cond,
814 int rd, int rn, int32_t offset)
816 if (offset > 0xff || offset < -0xff) {
817 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
818 tcg_out_ld8s_r(s, cond, rd, rn, TCG_REG_R8);
820 tcg_out_ld8s_8(s, cond, rd, rn, offset);
823 static inline void tcg_out_st8(TCGContext *s, int cond,
824 int rd, int rn, int32_t offset)
826 if (offset > 0xfff || offset < -0xfff) {
827 tcg_out_movi32(s, cond, TCG_REG_R8, offset);
828 tcg_out_st8_r(s, cond, rd, rn, TCG_REG_R8);
830 tcg_out_st8_12(s, cond, rd, rn, offset);
833 static inline void tcg_out_goto(TCGContext *s, int cond, uint32_t addr)
837 val = addr - (tcg_target_long) s->code_ptr;
838 if (val - 8 < 0x01fffffd && val - 8 > -0x01fffffd)
839 tcg_out_b(s, cond, val);
844 if (cond == COND_AL) {
845 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
846 tcg_out32(s, addr); /* XXX: This is l->u.value, can we use it? */
848 tcg_out_movi32(s, cond, TCG_REG_R8, val - 8);
849 tcg_out_dat_reg(s, cond, ARITH_ADD,
850 TCG_REG_PC, TCG_REG_PC,
851 TCG_REG_R8, SHIFT_IMM_LSL(0));
857 static inline void tcg_out_call(TCGContext *s, int cond, uint32_t addr)
861 val = addr - (tcg_target_long) s->code_ptr;
862 if (val < 0x01fffffd && val > -0x01fffffd)
863 tcg_out_bl(s, cond, val);
868 if (cond == COND_AL) {
869 tcg_out_dat_imm(s, cond, ARITH_ADD, TCG_REG_R14, TCG_REG_PC, 4);
870 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
871 tcg_out32(s, addr); /* XXX: This is l->u.value, can we use it? */
873 tcg_out_movi32(s, cond, TCG_REG_R9, addr);
874 tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R14, 0,
875 TCG_REG_PC, SHIFT_IMM_LSL(0));
876 tcg_out_bx(s, cond, TCG_REG_R9);
882 static inline void tcg_out_callr(TCGContext *s, int cond, int arg)
884 if (use_armv5_instructions) {
885 tcg_out_blx(s, cond, arg);
887 tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R14, 0,
888 TCG_REG_PC, SHIFT_IMM_LSL(0));
889 tcg_out_bx(s, cond, arg);
893 static inline void tcg_out_goto_label(TCGContext *s, int cond, int label_index)
895 TCGLabel *l = &s->labels[label_index];
898 tcg_out_goto(s, cond, l->u.value);
899 else if (cond == COND_AL) {
900 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
901 tcg_out_reloc(s, s->code_ptr, R_ARM_ABS32, label_index, 31337);
904 /* Probably this should be preferred even for COND_AL... */
905 tcg_out_reloc(s, s->code_ptr, R_ARM_PC24, label_index, 31337);
906 tcg_out_b_noaddr(s, cond);
910 #ifdef CONFIG_SOFTMMU
912 #include "../../softmmu_defs.h"
914 static void *qemu_ld_helpers[4] = {
921 static void *qemu_st_helpers[4] = {
929 #define TLB_SHIFT (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS)
931 static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
933 int addr_reg, data_reg, data_reg2, bswap;
934 #ifdef CONFIG_SOFTMMU
935 int mem_index, s_bits;
936 # if TARGET_LONG_BITS == 64
942 #ifdef TARGET_WORDS_BIGENDIAN
951 data_reg2 = 0; /* suppress warning */
953 #ifdef CONFIG_SOFTMMU
954 # if TARGET_LONG_BITS == 64
960 /* Should generate something like the following:
961 * shr r8, addr_reg, #TARGET_PAGE_BITS
962 * and r0, r8, #(CPU_TLB_SIZE - 1) @ Assumption: CPU_TLB_BITS <= 8
963 * add r0, env, r0 lsl #CPU_TLB_ENTRY_BITS
965 # if CPU_TLB_BITS > 8
968 tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_R8,
969 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
970 tcg_out_dat_imm(s, COND_AL, ARITH_AND,
971 TCG_REG_R0, TCG_REG_R8, CPU_TLB_SIZE - 1);
972 tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_AREG0,
973 TCG_REG_R0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
975 * ldr r1 [r0, #(offsetof(CPUState, tlb_table[mem_index][0].addr_read))]
976 * below, the offset is likely to exceed 12 bits if mem_index != 0 and
977 * not exceed otherwise, so use an
978 * add r0, r0, #(mem_index * sizeof *CPUState.tlb_table)
982 tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_REG_R0,
983 (mem_index << (TLB_SHIFT & 1)) |
984 ((16 - (TLB_SHIFT >> 1)) << 8));
985 tcg_out_ld32_12(s, COND_AL, TCG_REG_R1, TCG_REG_R0,
986 offsetof(CPUState, tlb_table[0][0].addr_read));
987 tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, TCG_REG_R1,
988 TCG_REG_R8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
989 /* Check alignment. */
991 tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
992 0, addr_reg, (1 << s_bits) - 1);
993 # if TARGET_LONG_BITS == 64
994 /* XXX: possibly we could use a block data load or writeback in
995 * the first access. */
996 tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
997 offsetof(CPUState, tlb_table[0][0].addr_read) + 4);
998 tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
999 TCG_REG_R1, addr_reg2, SHIFT_IMM_LSL(0));
1001 tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
1002 offsetof(CPUState, tlb_table[0][0].addend));
1006 tcg_out_ld8_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1009 tcg_out_ld8s_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1012 tcg_out_ld16u_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1014 tcg_out_bswap16(s, COND_EQ, data_reg, data_reg);
1019 tcg_out_ld16u_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1020 tcg_out_bswap16s(s, COND_EQ, data_reg, data_reg);
1022 tcg_out_ld16s_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1027 tcg_out_ld32_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1029 tcg_out_bswap32(s, COND_EQ, data_reg, data_reg);
1034 tcg_out_ld32_rwb(s, COND_EQ, data_reg2, TCG_REG_R1, addr_reg);
1035 tcg_out_ld32_12(s, COND_EQ, data_reg, TCG_REG_R1, 4);
1036 tcg_out_bswap32(s, COND_EQ, data_reg2, data_reg2);
1037 tcg_out_bswap32(s, COND_EQ, data_reg, data_reg);
1039 tcg_out_ld32_rwb(s, COND_EQ, data_reg, TCG_REG_R1, addr_reg);
1040 tcg_out_ld32_12(s, COND_EQ, data_reg2, TCG_REG_R1, 4);
1045 label_ptr = (void *) s->code_ptr;
1046 tcg_out_b_noaddr(s, COND_EQ);
1048 /* TODO: move this code to where the constants pool will be */
1049 if (addr_reg != TCG_REG_R0) {
1050 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1051 TCG_REG_R0, 0, addr_reg, SHIFT_IMM_LSL(0));
1053 # if TARGET_LONG_BITS == 32
1054 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R1, 0, mem_index);
1056 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1057 TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0));
1058 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
1060 tcg_out_bl(s, COND_AL, (tcg_target_long) qemu_ld_helpers[s_bits] -
1061 (tcg_target_long) s->code_ptr);
1065 tcg_out_ext8s(s, COND_AL, data_reg, TCG_REG_R0);
1068 tcg_out_ext16s(s, COND_AL, data_reg, TCG_REG_R0);
1074 if (data_reg != TCG_REG_R0) {
1075 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1076 data_reg, 0, TCG_REG_R0, SHIFT_IMM_LSL(0));
1080 if (data_reg != TCG_REG_R0) {
1081 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1082 data_reg, 0, TCG_REG_R0, SHIFT_IMM_LSL(0));
1084 if (data_reg2 != TCG_REG_R1) {
1085 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1086 data_reg2, 0, TCG_REG_R1, SHIFT_IMM_LSL(0));
1091 reloc_pc24(label_ptr, (tcg_target_long)s->code_ptr);
1092 #else /* !CONFIG_SOFTMMU */
1094 uint32_t offset = GUEST_BASE;
1099 i = ctz32(offset) & ~1;
1100 rot = ((32 - i) << 7) & 0xf00;
1102 tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R8, addr_reg,
1103 ((offset >> i) & 0xff) | rot);
1104 addr_reg = TCG_REG_R8;
1105 offset &= ~(0xff << i);
1110 tcg_out_ld8_12(s, COND_AL, data_reg, addr_reg, 0);
1113 tcg_out_ld8s_8(s, COND_AL, data_reg, addr_reg, 0);
1116 tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0);
1118 tcg_out_bswap16(s, COND_AL, data_reg, data_reg);
1123 tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0);
1124 tcg_out_bswap16s(s, COND_AL, data_reg, data_reg);
1126 tcg_out_ld16s_8(s, COND_AL, data_reg, addr_reg, 0);
1131 tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
1133 tcg_out_bswap32(s, COND_AL, data_reg, data_reg);
1137 /* TODO: use block load -
1138 * check that data_reg2 > data_reg or the other way */
1139 if (data_reg == addr_reg) {
1140 tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, bswap ? 0 : 4);
1141 tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, bswap ? 4 : 0);
1143 tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, bswap ? 4 : 0);
1144 tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, bswap ? 0 : 4);
1147 tcg_out_bswap32(s, COND_AL, data_reg, data_reg);
1148 tcg_out_bswap32(s, COND_AL, data_reg2, data_reg2);
1155 static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
1157 int addr_reg, data_reg, data_reg2, bswap;
1158 #ifdef CONFIG_SOFTMMU
1159 int mem_index, s_bits;
1160 # if TARGET_LONG_BITS == 64
1163 uint32_t *label_ptr;
1166 #ifdef TARGET_WORDS_BIGENDIAN
1173 data_reg2 = *args++;
1175 data_reg2 = 0; /* suppress warning */
1177 #ifdef CONFIG_SOFTMMU
1178 # if TARGET_LONG_BITS == 64
1179 addr_reg2 = *args++;
1184 /* Should generate something like the following:
1185 * shr r8, addr_reg, #TARGET_PAGE_BITS
1186 * and r0, r8, #(CPU_TLB_SIZE - 1) @ Assumption: CPU_TLB_BITS <= 8
1187 * add r0, env, r0 lsl #CPU_TLB_ENTRY_BITS
1189 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1190 TCG_REG_R8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
1191 tcg_out_dat_imm(s, COND_AL, ARITH_AND,
1192 TCG_REG_R0, TCG_REG_R8, CPU_TLB_SIZE - 1);
1193 tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_R0,
1194 TCG_AREG0, TCG_REG_R0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
1196 * ldr r1 [r0, #(offsetof(CPUState, tlb_table[mem_index][0].addr_write))]
1197 * below, the offset is likely to exceed 12 bits if mem_index != 0 and
1198 * not exceed otherwise, so use an
1199 * add r0, r0, #(mem_index * sizeof *CPUState.tlb_table)
1203 tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_REG_R0,
1204 (mem_index << (TLB_SHIFT & 1)) |
1205 ((16 - (TLB_SHIFT >> 1)) << 8));
1206 tcg_out_ld32_12(s, COND_AL, TCG_REG_R1, TCG_REG_R0,
1207 offsetof(CPUState, tlb_table[0][0].addr_write));
1208 tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, TCG_REG_R1,
1209 TCG_REG_R8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
1210 /* Check alignment. */
1212 tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
1213 0, addr_reg, (1 << s_bits) - 1);
1214 # if TARGET_LONG_BITS == 64
1215 /* XXX: possibly we could use a block data load or writeback in
1216 * the first access. */
1217 tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
1218 offsetof(CPUState, tlb_table[0][0].addr_write) + 4);
1219 tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
1220 TCG_REG_R1, addr_reg2, SHIFT_IMM_LSL(0));
1222 tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
1223 offsetof(CPUState, tlb_table[0][0].addend));
1227 tcg_out_st8_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1231 tcg_out_bswap16(s, COND_EQ, TCG_REG_R0, data_reg);
1232 tcg_out_st16_r(s, COND_EQ, TCG_REG_R0, addr_reg, TCG_REG_R1);
1234 tcg_out_st16_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1240 tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg);
1241 tcg_out_st32_r(s, COND_EQ, TCG_REG_R0, addr_reg, TCG_REG_R1);
1243 tcg_out_st32_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
1248 tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg2);
1249 tcg_out_st32_rwb(s, COND_EQ, TCG_REG_R0, TCG_REG_R1, addr_reg);
1250 tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg);
1251 tcg_out_st32_12(s, COND_EQ, data_reg, TCG_REG_R1, 4);
1253 tcg_out_st32_rwb(s, COND_EQ, data_reg, TCG_REG_R1, addr_reg);
1254 tcg_out_st32_12(s, COND_EQ, data_reg2, TCG_REG_R1, 4);
1259 label_ptr = (void *) s->code_ptr;
1260 tcg_out_b_noaddr(s, COND_EQ);
1262 /* TODO: move this code to where the constants pool will be */
1263 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1264 TCG_REG_R0, 0, addr_reg, SHIFT_IMM_LSL(0));
1265 # if TARGET_LONG_BITS == 32
1268 tcg_out_ext8u(s, COND_AL, TCG_REG_R1, data_reg);
1269 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
1272 tcg_out_ext16u(s, COND_AL, TCG_REG_R1, data_reg);
1273 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
1276 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1277 TCG_REG_R1, 0, data_reg, SHIFT_IMM_LSL(0));
1278 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
1281 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R8, 0, mem_index);
1282 tcg_out32(s, (COND_AL << 28) | 0x052d8010); /* str r8, [sp, #-0x10]! */
1283 if (data_reg != TCG_REG_R2) {
1284 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1285 TCG_REG_R2, 0, data_reg, SHIFT_IMM_LSL(0));
1287 if (data_reg2 != TCG_REG_R3) {
1288 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1289 TCG_REG_R3, 0, data_reg2, SHIFT_IMM_LSL(0));
1294 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1295 TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0));
1298 tcg_out_ext8u(s, COND_AL, TCG_REG_R2, data_reg);
1299 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R3, 0, mem_index);
1302 tcg_out_ext16u(s, COND_AL, TCG_REG_R2, data_reg);
1303 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R3, 0, mem_index);
1306 if (data_reg != TCG_REG_R2) {
1307 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1308 TCG_REG_R2, 0, data_reg, SHIFT_IMM_LSL(0));
1310 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R3, 0, mem_index);
1313 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R8, 0, mem_index);
1314 tcg_out32(s, (COND_AL << 28) | 0x052d8010); /* str r8, [sp, #-0x10]! */
1315 if (data_reg != TCG_REG_R2) {
1316 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1317 TCG_REG_R2, 0, data_reg, SHIFT_IMM_LSL(0));
1319 if (data_reg2 != TCG_REG_R3) {
1320 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1321 TCG_REG_R3, 0, data_reg2, SHIFT_IMM_LSL(0));
1327 tcg_out_bl(s, COND_AL, (tcg_target_long) qemu_st_helpers[s_bits] -
1328 (tcg_target_long) s->code_ptr);
1330 tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R13, TCG_REG_R13, 0x10);
1332 reloc_pc24(label_ptr, (tcg_target_long)s->code_ptr);
1333 #else /* !CONFIG_SOFTMMU */
1335 uint32_t offset = GUEST_BASE;
1340 i = ctz32(offset) & ~1;
1341 rot = ((32 - i) << 7) & 0xf00;
1343 tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R1, addr_reg,
1344 ((offset >> i) & 0xff) | rot);
1345 addr_reg = TCG_REG_R1;
1346 offset &= ~(0xff << i);
1351 tcg_out_st8_12(s, COND_AL, data_reg, addr_reg, 0);
1355 tcg_out_bswap16(s, COND_AL, TCG_REG_R0, data_reg);
1356 tcg_out_st16_8(s, COND_AL, TCG_REG_R0, addr_reg, 0);
1358 tcg_out_st16_8(s, COND_AL, data_reg, addr_reg, 0);
1364 tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg);
1365 tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 0);
1367 tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
1371 /* TODO: use block store -
1372 * check that data_reg2 > data_reg or the other way */
1374 tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg2);
1375 tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 0);
1376 tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg);
1377 tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 4);
1379 tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
1380 tcg_out_st32_12(s, COND_AL, data_reg2, addr_reg, 4);
1387 static uint8_t *tb_ret_addr;
1389 static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
1390 const TCGArg *args, const int *const_args)
1395 case INDEX_op_exit_tb:
1397 uint8_t *ld_ptr = s->code_ptr;
1399 tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0);
1401 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R0, 0, args[0]);
1402 tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr);
1404 *ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8;
1405 tcg_out32(s, args[0]);
1409 case INDEX_op_goto_tb:
1410 if (s->tb_jmp_offset) {
1411 /* Direct jump method */
1412 #if defined(USE_DIRECT_JUMP)
1413 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
1414 tcg_out_b_noaddr(s, COND_AL);
1416 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
1417 s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
1421 /* Indirect jump method */
1423 c = (int) (s->tb_next + args[0]) - ((int) s->code_ptr + 8);
1424 if (c > 0xfff || c < -0xfff) {
1425 tcg_out_movi32(s, COND_AL, TCG_REG_R0,
1426 (tcg_target_long) (s->tb_next + args[0]));
1427 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_R0, 0);
1429 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, c);
1431 tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0);
1432 tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_R0, 0);
1433 tcg_out32(s, (tcg_target_long) (s->tb_next + args[0]));
1436 s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
1440 tcg_out_call(s, COND_AL, args[0]);
1442 tcg_out_callr(s, COND_AL, args[0]);
1446 tcg_out_goto(s, COND_AL, args[0]);
1448 tcg_out_bx(s, COND_AL, args[0]);
1451 tcg_out_goto_label(s, COND_AL, args[0]);
1454 case INDEX_op_ld8u_i32:
1455 tcg_out_ld8u(s, COND_AL, args[0], args[1], args[2]);
1457 case INDEX_op_ld8s_i32:
1458 tcg_out_ld8s(s, COND_AL, args[0], args[1], args[2]);
1460 case INDEX_op_ld16u_i32:
1461 tcg_out_ld16u(s, COND_AL, args[0], args[1], args[2]);
1463 case INDEX_op_ld16s_i32:
1464 tcg_out_ld16s(s, COND_AL, args[0], args[1], args[2]);
1466 case INDEX_op_ld_i32:
1467 tcg_out_ld32u(s, COND_AL, args[0], args[1], args[2]);
1469 case INDEX_op_st8_i32:
1470 tcg_out_st8(s, COND_AL, args[0], args[1], args[2]);
1472 case INDEX_op_st16_i32:
1473 tcg_out_st16(s, COND_AL, args[0], args[1], args[2]);
1475 case INDEX_op_st_i32:
1476 tcg_out_st32(s, COND_AL, args[0], args[1], args[2]);
1479 case INDEX_op_mov_i32:
1480 tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
1481 args[0], 0, args[1], SHIFT_IMM_LSL(0));
1483 case INDEX_op_movi_i32:
1484 tcg_out_movi32(s, COND_AL, args[0], args[1]);
1486 case INDEX_op_add_i32:
1489 case INDEX_op_sub_i32:
1492 case INDEX_op_and_i32:
1495 case INDEX_op_andc_i32:
1498 case INDEX_op_or_i32:
1501 case INDEX_op_xor_i32:
1505 if (const_args[2]) {
1507 rot = encode_imm(args[2]);
1508 tcg_out_dat_imm(s, COND_AL, c,
1509 args[0], args[1], rotl(args[2], rot) | (rot << 7));
1511 tcg_out_dat_reg(s, COND_AL, c,
1512 args[0], args[1], args[2], SHIFT_IMM_LSL(0));
1514 case INDEX_op_add2_i32:
1515 tcg_out_dat_reg2(s, COND_AL, ARITH_ADD, ARITH_ADC,
1516 args[0], args[1], args[2], args[3],
1517 args[4], args[5], SHIFT_IMM_LSL(0));
1519 case INDEX_op_sub2_i32:
1520 tcg_out_dat_reg2(s, COND_AL, ARITH_SUB, ARITH_SBC,
1521 args[0], args[1], args[2], args[3],
1522 args[4], args[5], SHIFT_IMM_LSL(0));
1524 case INDEX_op_neg_i32:
1525 tcg_out_dat_imm(s, COND_AL, ARITH_RSB, args[0], args[1], 0);
1527 case INDEX_op_not_i32:
1528 tcg_out_dat_reg(s, COND_AL,
1529 ARITH_MVN, args[0], 0, args[1], SHIFT_IMM_LSL(0));
1531 case INDEX_op_mul_i32:
1532 tcg_out_mul32(s, COND_AL, args[0], args[1], args[2]);
1534 case INDEX_op_mulu2_i32:
1535 tcg_out_umull32(s, COND_AL, args[0], args[1], args[2], args[3]);
1537 /* XXX: Perhaps args[2] & 0x1f is wrong */
1538 case INDEX_op_shl_i32:
1540 SHIFT_IMM_LSL(args[2] & 0x1f) : SHIFT_REG_LSL(args[2]);
1542 case INDEX_op_shr_i32:
1543 c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_LSR(args[2] & 0x1f) :
1544 SHIFT_IMM_LSL(0) : SHIFT_REG_LSR(args[2]);
1546 case INDEX_op_sar_i32:
1547 c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ASR(args[2] & 0x1f) :
1548 SHIFT_IMM_LSL(0) : SHIFT_REG_ASR(args[2]);
1550 case INDEX_op_rotr_i32:
1551 c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ROR(args[2] & 0x1f) :
1552 SHIFT_IMM_LSL(0) : SHIFT_REG_ROR(args[2]);
1555 tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], c);
1558 case INDEX_op_rotl_i32:
1559 if (const_args[2]) {
1560 tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1],
1561 ((0x20 - args[2]) & 0x1f) ?
1562 SHIFT_IMM_ROR((0x20 - args[2]) & 0x1f) :
1565 tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_R8, args[1], 0x20);
1566 tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1],
1567 SHIFT_REG_ROR(TCG_REG_R8));
1571 case INDEX_op_brcond_i32:
1572 if (const_args[1]) {
1574 rot = encode_imm(args[1]);
1575 tcg_out_dat_imm(s, COND_AL, ARITH_CMP, 0,
1576 args[0], rotl(args[1], rot) | (rot << 7));
1578 tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
1579 args[0], args[1], SHIFT_IMM_LSL(0));
1581 tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[2]], args[3]);
1583 case INDEX_op_brcond2_i32:
1584 /* The resulting conditions are:
1585 * TCG_COND_EQ --> a0 == a2 && a1 == a3,
1586 * TCG_COND_NE --> (a0 != a2 && a1 == a3) || a1 != a3,
1587 * TCG_COND_LT(U) --> (a0 < a2 && a1 == a3) || a1 < a3,
1588 * TCG_COND_GE(U) --> (a0 >= a2 && a1 == a3) || (a1 >= a3 && a1 != a3),
1589 * TCG_COND_LE(U) --> (a0 <= a2 && a1 == a3) || (a1 <= a3 && a1 != a3),
1590 * TCG_COND_GT(U) --> (a0 > a2 && a1 == a3) || a1 > a3,
1592 tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
1593 args[1], args[3], SHIFT_IMM_LSL(0));
1594 tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
1595 args[0], args[2], SHIFT_IMM_LSL(0));
1596 tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[4]], args[5]);
1598 case INDEX_op_setcond_i32:
1599 if (const_args[2]) {
1601 rot = encode_imm(args[2]);
1602 tcg_out_dat_imm(s, COND_AL, ARITH_CMP, 0,
1603 args[1], rotl(args[2], rot) | (rot << 7));
1605 tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
1606 args[1], args[2], SHIFT_IMM_LSL(0));
1608 tcg_out_dat_imm(s, tcg_cond_to_arm_cond[args[3]],
1609 ARITH_MOV, args[0], 0, 1);
1610 tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(args[3])],
1611 ARITH_MOV, args[0], 0, 0);
1613 case INDEX_op_setcond2_i32:
1614 /* See brcond2_i32 comment */
1615 tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
1616 args[2], args[4], SHIFT_IMM_LSL(0));
1617 tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
1618 args[1], args[3], SHIFT_IMM_LSL(0));
1619 tcg_out_dat_imm(s, tcg_cond_to_arm_cond[args[5]],
1620 ARITH_MOV, args[0], 0, 1);
1621 tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(args[5])],
1622 ARITH_MOV, args[0], 0, 0);
1625 case INDEX_op_qemu_ld8u:
1626 tcg_out_qemu_ld(s, args, 0);
1628 case INDEX_op_qemu_ld8s:
1629 tcg_out_qemu_ld(s, args, 0 | 4);
1631 case INDEX_op_qemu_ld16u:
1632 tcg_out_qemu_ld(s, args, 1);
1634 case INDEX_op_qemu_ld16s:
1635 tcg_out_qemu_ld(s, args, 1 | 4);
1637 case INDEX_op_qemu_ld32:
1638 tcg_out_qemu_ld(s, args, 2);
1640 case INDEX_op_qemu_ld64:
1641 tcg_out_qemu_ld(s, args, 3);
1644 case INDEX_op_qemu_st8:
1645 tcg_out_qemu_st(s, args, 0);
1647 case INDEX_op_qemu_st16:
1648 tcg_out_qemu_st(s, args, 1);
1650 case INDEX_op_qemu_st32:
1651 tcg_out_qemu_st(s, args, 2);
1653 case INDEX_op_qemu_st64:
1654 tcg_out_qemu_st(s, args, 3);
1657 case INDEX_op_bswap16_i32:
1658 tcg_out_bswap16(s, COND_AL, args[0], args[1]);
1660 case INDEX_op_bswap32_i32:
1661 tcg_out_bswap32(s, COND_AL, args[0], args[1]);
1664 case INDEX_op_ext8s_i32:
1665 tcg_out_ext8s(s, COND_AL, args[0], args[1]);
1667 case INDEX_op_ext16s_i32:
1668 tcg_out_ext16s(s, COND_AL, args[0], args[1]);
1670 case INDEX_op_ext16u_i32:
1671 tcg_out_ext16u(s, COND_AL, args[0], args[1]);
1679 static const TCGTargetOpDef arm_op_defs[] = {
1680 { INDEX_op_exit_tb, { } },
1681 { INDEX_op_goto_tb, { } },
1682 { INDEX_op_call, { "ri" } },
1683 { INDEX_op_jmp, { "ri" } },
1684 { INDEX_op_br, { } },
1686 { INDEX_op_mov_i32, { "r", "r" } },
1687 { INDEX_op_movi_i32, { "r" } },
1689 { INDEX_op_ld8u_i32, { "r", "r" } },
1690 { INDEX_op_ld8s_i32, { "r", "r" } },
1691 { INDEX_op_ld16u_i32, { "r", "r" } },
1692 { INDEX_op_ld16s_i32, { "r", "r" } },
1693 { INDEX_op_ld_i32, { "r", "r" } },
1694 { INDEX_op_st8_i32, { "r", "r" } },
1695 { INDEX_op_st16_i32, { "r", "r" } },
1696 { INDEX_op_st_i32, { "r", "r" } },
1698 /* TODO: "r", "r", "ri" */
1699 { INDEX_op_add_i32, { "r", "r", "rI" } },
1700 { INDEX_op_sub_i32, { "r", "r", "rI" } },
1701 { INDEX_op_mul_i32, { "r", "r", "r" } },
1702 { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
1703 { INDEX_op_and_i32, { "r", "r", "rI" } },
1704 { INDEX_op_andc_i32, { "r", "r", "rI" } },
1705 { INDEX_op_or_i32, { "r", "r", "rI" } },
1706 { INDEX_op_xor_i32, { "r", "r", "rI" } },
1707 { INDEX_op_neg_i32, { "r", "r" } },
1708 { INDEX_op_not_i32, { "r", "r" } },
1710 { INDEX_op_shl_i32, { "r", "r", "ri" } },
1711 { INDEX_op_shr_i32, { "r", "r", "ri" } },
1712 { INDEX_op_sar_i32, { "r", "r", "ri" } },
1713 { INDEX_op_rotl_i32, { "r", "r", "ri" } },
1714 { INDEX_op_rotr_i32, { "r", "r", "ri" } },
1716 { INDEX_op_brcond_i32, { "r", "rI" } },
1717 { INDEX_op_setcond_i32, { "r", "r", "rI" } },
1719 /* TODO: "r", "r", "r", "r", "ri", "ri" */
1720 { INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
1721 { INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
1722 { INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
1723 { INDEX_op_setcond2_i32, { "r", "r", "r", "r", "r" } },
1725 #if TARGET_LONG_BITS == 32
1726 { INDEX_op_qemu_ld8u, { "r", "l" } },
1727 { INDEX_op_qemu_ld8s, { "r", "l" } },
1728 { INDEX_op_qemu_ld16u, { "r", "l" } },
1729 { INDEX_op_qemu_ld16s, { "r", "l" } },
1730 { INDEX_op_qemu_ld32, { "r", "l" } },
1731 { INDEX_op_qemu_ld64, { "L", "L", "l" } },
1733 { INDEX_op_qemu_st8, { "s", "s" } },
1734 { INDEX_op_qemu_st16, { "s", "s" } },
1735 { INDEX_op_qemu_st32, { "s", "s" } },
1736 { INDEX_op_qemu_st64, { "S", "S", "s" } },
1738 { INDEX_op_qemu_ld8u, { "r", "l", "l" } },
1739 { INDEX_op_qemu_ld8s, { "r", "l", "l" } },
1740 { INDEX_op_qemu_ld16u, { "r", "l", "l" } },
1741 { INDEX_op_qemu_ld16s, { "r", "l", "l" } },
1742 { INDEX_op_qemu_ld32, { "r", "l", "l" } },
1743 { INDEX_op_qemu_ld64, { "L", "L", "l", "l" } },
1745 { INDEX_op_qemu_st8, { "s", "s", "s" } },
1746 { INDEX_op_qemu_st16, { "s", "s", "s" } },
1747 { INDEX_op_qemu_st32, { "s", "s", "s" } },
1748 { INDEX_op_qemu_st64, { "S", "S", "s", "s" } },
1751 { INDEX_op_bswap16_i32, { "r", "r" } },
1752 { INDEX_op_bswap32_i32, { "r", "r" } },
1754 { INDEX_op_ext8s_i32, { "r", "r" } },
1755 { INDEX_op_ext16s_i32, { "r", "r" } },
1756 { INDEX_op_ext16u_i32, { "r", "r" } },
1761 static void tcg_target_init(TCGContext *s)
1763 #if !defined(CONFIG_USER_ONLY)
1765 if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry))
1769 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff);
1770 tcg_regset_set32(tcg_target_call_clobber_regs, 0,
1775 (1 << TCG_REG_R12) |
1776 (1 << TCG_REG_R14));
1778 tcg_regset_clear(s->reserved_regs);
1779 tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK);
1780 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R8);
1781 tcg_regset_set_reg(s->reserved_regs, TCG_REG_PC);
1783 tcg_add_target_add_op_defs(arm_op_defs);
1786 static inline void tcg_out_ld(TCGContext *s, TCGType type, int arg,
1787 int arg1, tcg_target_long arg2)
1789 tcg_out_ld32u(s, COND_AL, arg, arg1, arg2);
1792 static inline void tcg_out_st(TCGContext *s, TCGType type, int arg,
1793 int arg1, tcg_target_long arg2)
1795 tcg_out_st32(s, COND_AL, arg, arg1, arg2);
1798 static void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
1802 tcg_out_dat_imm(s, COND_AL, ARITH_ADD, reg, reg, val);
1807 tcg_out_dat_imm(s, COND_AL, ARITH_SUB, reg, reg, -val);
1813 static inline void tcg_out_mov(TCGContext *s, TCGType type, int ret, int arg)
1815 tcg_out_dat_reg(s, COND_AL, ARITH_MOV, ret, 0, arg, SHIFT_IMM_LSL(0));
1818 static inline void tcg_out_movi(TCGContext *s, TCGType type,
1819 int ret, tcg_target_long arg)
1821 tcg_out_movi32(s, COND_AL, ret, arg);
1824 static void tcg_target_qemu_prologue(TCGContext *s)
1826 /* There is no need to save r7, it is used to store the address
1827 of the env structure and is not modified by GCC. */
1829 /* stmdb sp!, { r4 - r6, r8 - r11, lr } */
1830 tcg_out32(s, (COND_AL << 28) | 0x092d4f70);
1832 tcg_out_bx(s, COND_AL, TCG_REG_R0);
1833 tb_ret_addr = s->code_ptr;
1835 /* ldmia sp!, { r4 - r6, r8 - r11, pc } */
1836 tcg_out32(s, (COND_AL << 28) | 0x08bd8f70);