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#ifndef NDEBUG 26static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { 27 "%r0", "%r1", "%rp", "%r3", "%r4", "%r5", "%r6", "%r7", 28 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", 29 "%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23", 30 "%r24", "%r25", "%r26", "%dp", "%ret0", "%ret1", "%sp", "%r31", 31}; 32#endif 33 34/* This is an 8 byte temp slot in the stack frame. */ 35#define STACK_TEMP_OFS -16 36 37#ifdef CONFIG_USE_GUEST_BASE 38#define TCG_GUEST_BASE_REG TCG_REG_R16 39#else 40#define TCG_GUEST_BASE_REG TCG_REG_R0 41#endif 42 43static const int tcg_target_reg_alloc_order[] = { 44 TCG_REG_R4, 45 TCG_REG_R5, 46 TCG_REG_R6, 47 TCG_REG_R7, 48 TCG_REG_R8, 49 TCG_REG_R9, 50 TCG_REG_R10, 51 TCG_REG_R11, 52 TCG_REG_R12, 53 TCG_REG_R13, 54 55 TCG_REG_R17, 56 TCG_REG_R14, 57 TCG_REG_R15, 58 TCG_REG_R16, 59 60 TCG_REG_R26, 61 TCG_REG_R25, 62 TCG_REG_R24, 63 TCG_REG_R23, 64 65 TCG_REG_RET0, 66 TCG_REG_RET1, 67}; 68 69static const int tcg_target_call_iarg_regs[4] = { 70 TCG_REG_R26, 71 TCG_REG_R25, 72 TCG_REG_R24, 73 TCG_REG_R23, 74}; 75 76static const int tcg_target_call_oarg_regs[2] = { 77 TCG_REG_RET0, 78 TCG_REG_RET1, 79}; 80 81/* True iff val fits a signed field of width BITS. */ 82static inline int check_fit_tl(tcg_target_long val, unsigned int bits) 83{ 84 return (val << ((sizeof(tcg_target_long) * 8 - bits)) 85 >> (sizeof(tcg_target_long) * 8 - bits)) == val; 86} 87 88/* True iff depi can be used to compute (reg | MASK). 89 Accept a bit pattern like: 90 0....01....1 91 1....10....0 92 0..01..10..0 93 Copied from gcc sources. */ 94static inline int or_mask_p(tcg_target_ulong mask) 95{ 96 if (mask == 0 || mask == -1) { 97 return 0; 98 } 99 mask += mask & -mask; 100 return (mask & (mask - 1)) == 0; 101} 102 103/* True iff depi or extru can be used to compute (reg & mask). 104 Accept a bit pattern like these: 105 0....01....1 106 1....10....0 107 1..10..01..1 108 Copied from gcc sources. */ 109static inline int and_mask_p(tcg_target_ulong mask) 110{ 111 return or_mask_p(~mask); 112} 113 114static int low_sign_ext(int val, int len) 115{ 116 return (((val << 1) & ~(-1u << len)) | ((val >> (len - 1)) & 1)); 117} 118 119static int reassemble_12(int as12) 120{ 121 return (((as12 & 0x800) >> 11) | 122 ((as12 & 0x400) >> 8) | 123 ((as12 & 0x3ff) << 3)); 124} 125 126static int reassemble_17(int as17) 127{ 128 return (((as17 & 0x10000) >> 16) | 129 ((as17 & 0x0f800) << 5) | 130 ((as17 & 0x00400) >> 8) | 131 ((as17 & 0x003ff) << 3)); 132} 133 134static int reassemble_21(int as21) 135{ 136 return (((as21 & 0x100000) >> 20) | 137 ((as21 & 0x0ffe00) >> 8) | 138 ((as21 & 0x000180) << 7) | 139 ((as21 & 0x00007c) << 14) | 140 ((as21 & 0x000003) << 12)); 141} 142 143/* ??? Bizzarely, there is no PCREL12F relocation type. I guess all 144 such relocations are simply fully handled by the assembler. */ 145#define R_PARISC_PCREL12F R_PARISC_NONE 146 147static void patch_reloc(uint8_t *code_ptr, int type, 148 tcg_target_long value, tcg_target_long addend) 149{ 150 uint32_t *insn_ptr = (uint32_t *)code_ptr; 151 uint32_t insn = *insn_ptr; 152 tcg_target_long pcrel; 153 154 value += addend; 155 pcrel = (value - ((tcg_target_long)code_ptr + 8)) >> 2; 156 157 switch (type) { 158 case R_PARISC_PCREL12F: 159 assert(check_fit_tl(pcrel, 12)); 160 /* ??? We assume all patches are forward. See tcg_out_brcond 161 re setting the NUL bit on the branch and eliding the nop. */ 162 assert(pcrel >= 0); 163 insn &= ~0x1ffdu; 164 insn |= reassemble_12(pcrel); 165 break; 166 case R_PARISC_PCREL17F: 167 assert(check_fit_tl(pcrel, 17)); 168 insn &= ~0x1f1ffdu; 169 insn |= reassemble_17(pcrel); 170 break; 171 default: 172 tcg_abort(); 173 } 174 175 *insn_ptr = insn; 176} 177 178/* maximum number of register used for input function arguments */ 179static inline int tcg_target_get_call_iarg_regs_count(int flags) 180{ 181 return 4; 182} 183 184/* parse target specific constraints */ 185static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) 186{ 187 const char *ct_str; 188 189 ct_str = *pct_str; 190 switch (ct_str[0]) { 191 case 'r': 192 ct->ct |= TCG_CT_REG; 193 tcg_regset_set32(ct->u.regs, 0, 0xffffffff); 194 break; 195 case 'L': /* qemu_ld/st constraint */ 196 ct->ct |= TCG_CT_REG; 197 tcg_regset_set32(ct->u.regs, 0, 0xffffffff); 198 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R26); 199 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R25); 200 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R24); 201 tcg_regset_reset_reg(ct->u.regs, TCG_REG_R23); 202 break; 203 case 'Z': 204 ct->ct |= TCG_CT_CONST_0; 205 break; 206 case 'I': 207 ct->ct |= TCG_CT_CONST_S11; 208 break; 209 case 'J': 210 ct->ct |= TCG_CT_CONST_S5; 211 break; 212 case 'K': 213 ct->ct |= TCG_CT_CONST_MS11; 214 break; 215 case 'M': 216 ct->ct |= TCG_CT_CONST_AND; 217 break; 218 case 'O': 219 ct->ct |= TCG_CT_CONST_OR; 220 break; 221 default: 222 return -1; 223 } 224 ct_str++; 225 *pct_str = ct_str; 226 return 0; 227} 228 229/* test if a constant matches the constraint */ 230static int tcg_target_const_match(tcg_target_long val, 231 const TCGArgConstraint *arg_ct) 232{ 233 int ct = arg_ct->ct; 234 if (ct & TCG_CT_CONST) { 235 return 1; 236 } else if (ct & TCG_CT_CONST_0) { 237 return val == 0; 238 } else if (ct & TCG_CT_CONST_S5) { 239 return check_fit_tl(val, 5); 240 } else if (ct & TCG_CT_CONST_S11) { 241 return check_fit_tl(val, 11); 242 } else if (ct & TCG_CT_CONST_MS11) { 243 return check_fit_tl(-val, 11); 244 } else if (ct & TCG_CT_CONST_AND) { 245 return and_mask_p(val); 246 } else if (ct & TCG_CT_CONST_OR) { 247 return or_mask_p(val); 248 } 249 return 0; 250} 251 252#define INSN_OP(x) ((x) << 26) 253#define INSN_EXT3BR(x) ((x) << 13) 254#define INSN_EXT3SH(x) ((x) << 10) 255#define INSN_EXT4(x) ((x) << 6) 256#define INSN_EXT5(x) (x) 257#define INSN_EXT6(x) ((x) << 6) 258#define INSN_EXT7(x) ((x) << 6) 259#define INSN_EXT8A(x) ((x) << 6) 260#define INSN_EXT8B(x) ((x) << 5) 261#define INSN_T(x) (x) 262#define INSN_R1(x) ((x) << 16) 263#define INSN_R2(x) ((x) << 21) 264#define INSN_DEP_LEN(x) (32 - (x)) 265#define INSN_SHDEP_CP(x) ((31 - (x)) << 5) 266#define INSN_SHDEP_P(x) ((x) << 5) 267#define INSN_COND(x) ((x) << 13) 268#define INSN_IM11(x) low_sign_ext(x, 11) 269#define INSN_IM14(x) low_sign_ext(x, 14) 270#define INSN_IM5(x) (low_sign_ext(x, 5) << 16) 271 272#define COND_NEVER 0 273#define COND_EQ 1 274#define COND_LT 2 275#define COND_LE 3 276#define COND_LTU 4 277#define COND_LEU 5 278#define COND_SV 6 279#define COND_OD 7 280#define COND_FALSE 8 281 282#define INSN_ADD (INSN_OP(0x02) | INSN_EXT6(0x18)) 283#define INSN_ADDC (INSN_OP(0x02) | INSN_EXT6(0x1c)) 284#define INSN_ADDI (INSN_OP(0x2d)) 285#define INSN_ADDIL (INSN_OP(0x0a)) 286#define INSN_ADDL (INSN_OP(0x02) | INSN_EXT6(0x28)) 287#define INSN_AND (INSN_OP(0x02) | INSN_EXT6(0x08)) 288#define INSN_ANDCM (INSN_OP(0x02) | INSN_EXT6(0x00)) 289#define INSN_COMCLR (INSN_OP(0x02) | INSN_EXT6(0x22)) 290#define INSN_COMICLR (INSN_OP(0x24)) 291#define INSN_DEP (INSN_OP(0x35) | INSN_EXT3SH(3)) 292#define INSN_DEPI (INSN_OP(0x35) | INSN_EXT3SH(7)) 293#define INSN_EXTRS (INSN_OP(0x34) | INSN_EXT3SH(7)) 294#define INSN_EXTRU (INSN_OP(0x34) | INSN_EXT3SH(6)) 295#define INSN_LDIL (INSN_OP(0x08)) 296#define INSN_LDO (INSN_OP(0x0d)) 297#define INSN_MTCTL (INSN_OP(0x00) | INSN_EXT8B(0xc2)) 298#define INSN_OR (INSN_OP(0x02) | INSN_EXT6(0x09)) 299#define INSN_SHD (INSN_OP(0x34) | INSN_EXT3SH(2)) 300#define INSN_SUB (INSN_OP(0x02) | INSN_EXT6(0x10)) 301#define INSN_SUBB (INSN_OP(0x02) | INSN_EXT6(0x14)) 302#define INSN_SUBI (INSN_OP(0x25)) 303#define INSN_VEXTRS (INSN_OP(0x34) | INSN_EXT3SH(5)) 304#define INSN_VEXTRU (INSN_OP(0x34) | INSN_EXT3SH(4)) 305#define INSN_VSHD (INSN_OP(0x34) | INSN_EXT3SH(0)) 306#define INSN_XOR (INSN_OP(0x02) | INSN_EXT6(0x0a)) 307#define INSN_ZDEP (INSN_OP(0x35) | INSN_EXT3SH(2)) 308#define INSN_ZVDEP (INSN_OP(0x35) | INSN_EXT3SH(0)) 309 310#define INSN_BL (INSN_OP(0x3a) | INSN_EXT3BR(0)) 311#define INSN_BL_N (INSN_OP(0x3a) | INSN_EXT3BR(0) | 2) 312#define INSN_BLR (INSN_OP(0x3a) | INSN_EXT3BR(2)) 313#define INSN_BV (INSN_OP(0x3a) | INSN_EXT3BR(6)) 314#define INSN_BV_N (INSN_OP(0x3a) | INSN_EXT3BR(6) | 2) 315#define INSN_BLE_SR4 (INSN_OP(0x39) | (1 << 13)) 316 317#define INSN_LDB (INSN_OP(0x10)) 318#define INSN_LDH (INSN_OP(0x11)) 319#define INSN_LDW (INSN_OP(0x12)) 320#define INSN_LDWM (INSN_OP(0x13)) 321#define INSN_FLDDS (INSN_OP(0x0b) | INSN_EXT4(0) | (1 << 12)) 322 323#define INSN_LDBX (INSN_OP(0x03) | INSN_EXT4(0)) 324#define INSN_LDHX (INSN_OP(0x03) | INSN_EXT4(1)) 325#define INSN_LDWX (INSN_OP(0x03) | INSN_EXT4(2)) 326 327#define INSN_STB (INSN_OP(0x18)) 328#define INSN_STH (INSN_OP(0x19)) 329#define INSN_STW (INSN_OP(0x1a)) 330#define INSN_STWM (INSN_OP(0x1b)) 331#define INSN_FSTDS (INSN_OP(0x0b) | INSN_EXT4(8) | (1 << 12)) 332 333#define INSN_COMBT (INSN_OP(0x20)) 334#define INSN_COMBF (INSN_OP(0x22)) 335#define INSN_COMIBT (INSN_OP(0x21)) 336#define INSN_COMIBF (INSN_OP(0x23)) 337 338/* supplied by libgcc */ 339extern void *__canonicalize_funcptr_for_compare(void *); 340 341static void tcg_out_mov(TCGContext *s, TCGType type, int ret, int arg) 342{ 343 /* PA1.1 defines COPY as OR r,0,t; PA2.0 defines COPY as LDO 0(r),t 344 but hppa-dis.c is unaware of this definition */ 345 if (ret != arg) { 346 tcg_out32(s, INSN_OR | INSN_T(ret) | INSN_R1(arg) 347 | INSN_R2(TCG_REG_R0)); 348 } 349} 350 351static void tcg_out_movi(TCGContext *s, TCGType type, 352 int ret, tcg_target_long arg) 353{ 354 if (check_fit_tl(arg, 14)) { 355 tcg_out32(s, INSN_LDO | INSN_R1(ret) 356 | INSN_R2(TCG_REG_R0) | INSN_IM14(arg)); 357 } else { 358 uint32_t hi, lo; 359 hi = arg >> 11; 360 lo = arg & 0x7ff; 361 362 tcg_out32(s, INSN_LDIL | INSN_R2(ret) | reassemble_21(hi)); 363 if (lo) { 364 tcg_out32(s, INSN_LDO | INSN_R1(ret) 365 | INSN_R2(ret) | INSN_IM14(lo)); 366 } 367 } 368} 369 370static void tcg_out_ldst(TCGContext *s, int ret, int addr, 371 tcg_target_long offset, int op) 372{ 373 if (!check_fit_tl(offset, 14)) { 374 uint32_t hi, lo, op; 375 376 hi = offset >> 11; 377 lo = offset & 0x7ff; 378 379 if (addr == TCG_REG_R0) { 380 op = INSN_LDIL | INSN_R2(TCG_REG_R1); 381 } else { 382 op = INSN_ADDIL | INSN_R2(addr); 383 } 384 tcg_out32(s, op | reassemble_21(hi)); 385 386 addr = TCG_REG_R1; 387 offset = lo; 388 } 389 390 if (ret != addr || offset != 0 || op != INSN_LDO) { 391 tcg_out32(s, op | INSN_R1(ret) | INSN_R2(addr) | INSN_IM14(offset)); 392 } 393} 394 395/* This function is required by tcg.c. */ 396static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret, 397 int arg1, tcg_target_long arg2) 398{ 399 tcg_out_ldst(s, ret, arg1, arg2, INSN_LDW); 400} 401 402/* This function is required by tcg.c. */ 403static inline void tcg_out_st(TCGContext *s, TCGType type, int ret, 404 int arg1, tcg_target_long arg2) 405{ 406 tcg_out_ldst(s, ret, arg1, arg2, INSN_STW); 407} 408 409static void tcg_out_ldst_index(TCGContext *s, int data, 410 int base, int index, int op) 411{ 412 tcg_out32(s, op | INSN_T(data) | INSN_R1(index) | INSN_R2(base)); 413} 414 415static inline void tcg_out_addi2(TCGContext *s, int ret, int arg1, 416 tcg_target_long val) 417{ 418 tcg_out_ldst(s, ret, arg1, val, INSN_LDO); 419} 420 421/* This function is required by tcg.c. */ 422static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) 423{ 424 tcg_out_addi2(s, reg, reg, val); 425} 426 427static inline void tcg_out_arith(TCGContext *s, int t, int r1, int r2, int op) 428{ 429 tcg_out32(s, op | INSN_T(t) | INSN_R1(r1) | INSN_R2(r2)); 430} 431 432static inline void tcg_out_arithi(TCGContext *s, int t, int r1, 433 tcg_target_long val, int op) 434{ 435 assert(check_fit_tl(val, 11)); 436 tcg_out32(s, op | INSN_R1(t) | INSN_R2(r1) | INSN_IM11(val)); 437} 438 439static inline void tcg_out_nop(TCGContext *s) 440{ 441 tcg_out_arith(s, TCG_REG_R0, TCG_REG_R0, TCG_REG_R0, INSN_OR); 442} 443 444static inline void tcg_out_mtctl_sar(TCGContext *s, int arg) 445{ 446 tcg_out32(s, INSN_MTCTL | INSN_R2(11) | INSN_R1(arg)); 447} 448 449/* Extract LEN bits at position OFS from ARG and place in RET. 450 Note that here the bit ordering is reversed from the PA-RISC 451 standard, such that the right-most bit is 0. */ 452static inline void tcg_out_extr(TCGContext *s, int ret, int arg, 453 unsigned ofs, unsigned len, int sign) 454{ 455 assert(ofs < 32 && len <= 32 - ofs); 456 tcg_out32(s, (sign ? INSN_EXTRS : INSN_EXTRU) 457 | INSN_R1(ret) | INSN_R2(arg) 458 | INSN_SHDEP_P(31 - ofs) | INSN_DEP_LEN(len)); 459} 460 461/* Likewise with OFS interpreted little-endian. */ 462static inline void tcg_out_dep(TCGContext *s, int ret, int arg, 463 unsigned ofs, unsigned len) 464{ 465 assert(ofs < 32 && len <= 32 - ofs); 466 tcg_out32(s, INSN_DEP | INSN_R2(ret) | INSN_R1(arg) 467 | INSN_SHDEP_CP(31 - ofs) | INSN_DEP_LEN(len)); 468} 469 470static inline void tcg_out_shd(TCGContext *s, int ret, int hi, int lo, 471 unsigned count) 472{ 473 assert(count < 32); 474 tcg_out32(s, INSN_SHD | INSN_R1(hi) | INSN_R2(lo) | INSN_T(ret) 475 | INSN_SHDEP_CP(count)); 476} 477 478static void tcg_out_vshd(TCGContext *s, int ret, int hi, int lo, int creg) 479{ 480 tcg_out_mtctl_sar(s, creg); 481 tcg_out32(s, INSN_VSHD | INSN_T(ret) | INSN_R1(hi) | INSN_R2(lo)); 482} 483 484static void tcg_out_ori(TCGContext *s, int ret, int arg, tcg_target_ulong m) 485{ 486 int bs0, bs1; 487 488 /* Note that the argument is constrained to match or_mask_p. */ 489 for (bs0 = 0; bs0 < 32; bs0++) { 490 if ((m & (1u << bs0)) != 0) { 491 break; 492 } 493 } 494 for (bs1 = bs0; bs1 < 32; bs1++) { 495 if ((m & (1u << bs1)) == 0) { 496 break; 497 } 498 } 499 assert(bs1 == 32 || (1ul << bs1) > m); 500 501 tcg_out_mov(s, TCG_TYPE_I32, ret, arg); 502 tcg_out32(s, INSN_DEPI | INSN_R2(ret) | INSN_IM5(-1) 503 | INSN_SHDEP_CP(31 - bs0) | INSN_DEP_LEN(bs1 - bs0)); 504} 505 506static void tcg_out_andi(TCGContext *s, int ret, int arg, tcg_target_ulong m) 507{ 508 int ls0, ls1, ms0; 509 510 /* Note that the argument is constrained to match and_mask_p. */ 511 for (ls0 = 0; ls0 < 32; ls0++) { 512 if ((m & (1u << ls0)) == 0) { 513 break; 514 } 515 } 516 for (ls1 = ls0; ls1 < 32; ls1++) { 517 if ((m & (1u << ls1)) != 0) { 518 break; 519 } 520 } 521 for (ms0 = ls1; ms0 < 32; ms0++) { 522 if ((m & (1u << ms0)) == 0) { 523 break; 524 } 525 } 526 assert (ms0 == 32); 527 528 if (ls1 == 32) { 529 tcg_out_extr(s, ret, arg, 0, ls0, 0); 530 } else { 531 tcg_out_mov(s, TCG_TYPE_I32, ret, arg); 532 tcg_out32(s, INSN_DEPI | INSN_R2(ret) | INSN_IM5(0) 533 | INSN_SHDEP_CP(31 - ls0) | INSN_DEP_LEN(ls1 - ls0)); 534 } 535} 536 537static inline void tcg_out_ext8s(TCGContext *s, int ret, int arg) 538{ 539 tcg_out_extr(s, ret, arg, 0, 8, 1); 540} 541 542static inline void tcg_out_ext16s(TCGContext *s, int ret, int arg) 543{ 544 tcg_out_extr(s, ret, arg, 0, 16, 1); 545} 546 547static void tcg_out_shli(TCGContext *s, int ret, int arg, int count) 548{ 549 count &= 31; 550 tcg_out32(s, INSN_ZDEP | INSN_R2(ret) | INSN_R1(arg) 551 | INSN_SHDEP_CP(31 - count) | INSN_DEP_LEN(32 - count)); 552} 553 554static void tcg_out_shl(TCGContext *s, int ret, int arg, int creg) 555{ 556 tcg_out_arithi(s, TCG_REG_R20, creg, 31, INSN_SUBI); 557 tcg_out_mtctl_sar(s, TCG_REG_R20); 558 tcg_out32(s, INSN_ZVDEP | INSN_R2(ret) | INSN_R1(arg) | INSN_DEP_LEN(32)); 559} 560 561static void tcg_out_shri(TCGContext *s, int ret, int arg, int count) 562{ 563 count &= 31; 564 tcg_out_extr(s, ret, arg, count, 32 - count, 0); 565} 566 567static void tcg_out_shr(TCGContext *s, int ret, int arg, int creg) 568{ 569 tcg_out_vshd(s, ret, TCG_REG_R0, arg, creg); 570} 571 572static void tcg_out_sari(TCGContext *s, int ret, int arg, int count) 573{ 574 count &= 31; 575 tcg_out_extr(s, ret, arg, count, 32 - count, 1); 576} 577 578static void tcg_out_sar(TCGContext *s, int ret, int arg, int creg) 579{ 580 tcg_out_arithi(s, TCG_REG_R20, creg, 31, INSN_SUBI); 581 tcg_out_mtctl_sar(s, TCG_REG_R20); 582 tcg_out32(s, INSN_VEXTRS | INSN_R1(ret) | INSN_R2(arg) | INSN_DEP_LEN(32)); 583} 584 585static void tcg_out_rotli(TCGContext *s, int ret, int arg, int count) 586{ 587 count &= 31; 588 tcg_out_shd(s, ret, arg, arg, 32 - count); 589} 590 591static void tcg_out_rotl(TCGContext *s, int ret, int arg, int creg) 592{ 593 tcg_out_arithi(s, TCG_REG_R20, creg, 32, INSN_SUBI); 594 tcg_out_vshd(s, ret, arg, arg, TCG_REG_R20); 595} 596 597static void tcg_out_rotri(TCGContext *s, int ret, int arg, int count) 598{ 599 count &= 31; 600 tcg_out_shd(s, ret, arg, arg, count); 601} 602 603static void tcg_out_rotr(TCGContext *s, int ret, int arg, int creg) 604{ 605 tcg_out_vshd(s, ret, arg, arg, creg); 606} 607 608static void tcg_out_bswap16(TCGContext *s, int ret, int arg, int sign) 609{ 610 if (ret != arg) { 611 tcg_out_mov(s, TCG_TYPE_I32, ret, arg); /* arg = xxAB */ 612 } 613 tcg_out_dep(s, ret, ret, 16, 8); /* ret = xBAB */ 614 tcg_out_extr(s, ret, ret, 8, 16, sign); /* ret = ..BA */ 615} 616 617static void tcg_out_bswap32(TCGContext *s, int ret, int arg, int temp) 618{ 619 /* arg = ABCD */ 620 tcg_out_rotri(s, temp, arg, 16); /* temp = CDAB */ 621 tcg_out_dep(s, temp, temp, 16, 8); /* temp = CBAB */ 622 tcg_out_shd(s, ret, arg, temp, 8); /* ret = DCBA */ 623} 624 625static void tcg_out_call(TCGContext *s, void *func) 626{ 627 tcg_target_long val, hi, lo, disp; 628 629 val = (uint32_t)__canonicalize_funcptr_for_compare(func); 630 disp = (val - ((tcg_target_long)s->code_ptr + 8)) >> 2; 631 632 if (check_fit_tl(disp, 17)) { 633 tcg_out32(s, INSN_BL_N | INSN_R2(TCG_REG_RP) | reassemble_17(disp)); 634 } else { 635 hi = val >> 11; 636 lo = val & 0x7ff; 637 638 tcg_out32(s, INSN_LDIL | INSN_R2(TCG_REG_R20) | reassemble_21(hi)); 639 tcg_out32(s, INSN_BLE_SR4 | INSN_R2(TCG_REG_R20) 640 | reassemble_17(lo >> 2)); 641 tcg_out_mov(s, TCG_TYPE_I32, TCG_REG_RP, TCG_REG_R31); 642 } 643} 644 645static void tcg_out_xmpyu(TCGContext *s, int retl, int reth, 646 int arg1, int arg2) 647{ 648 /* Store both words into the stack for copy to the FPU. */ 649 tcg_out_ldst(s, arg1, TCG_REG_SP, STACK_TEMP_OFS, INSN_STW); 650 tcg_out_ldst(s, arg2, TCG_REG_SP, STACK_TEMP_OFS + 4, INSN_STW); 651 652 /* Load both words into the FPU at the same time. We get away 653 with this because we can address the left and right half of the 654 FPU registers individually once loaded. */ 655 /* fldds stack_temp(sp),fr22 */ 656 tcg_out32(s, INSN_FLDDS | INSN_R2(TCG_REG_SP) 657 | INSN_IM5(STACK_TEMP_OFS) | INSN_T(22)); 658 659 /* xmpyu fr22r,fr22,fr22 */ 660 tcg_out32(s, 0x3ad64796); 661 662 /* Store the 64-bit result back into the stack. */ 663 /* fstds stack_temp(sp),fr22 */ 664 tcg_out32(s, INSN_FSTDS | INSN_R2(TCG_REG_SP) 665 | INSN_IM5(STACK_TEMP_OFS) | INSN_T(22)); 666 667 /* Load the pieces of the result that the caller requested. */ 668 if (reth) { 669 tcg_out_ldst(s, reth, TCG_REG_SP, STACK_TEMP_OFS, INSN_LDW); 670 } 671 if (retl) { 672 tcg_out_ldst(s, retl, TCG_REG_SP, STACK_TEMP_OFS + 4, INSN_LDW); 673 } 674} 675 676static void tcg_out_add2(TCGContext *s, int destl, int desth, 677 int al, int ah, int bl, int bh, int blconst) 678{ 679 int tmp = (destl == ah || destl == bh ? TCG_REG_R20 : destl); 680 681 if (blconst) { 682 tcg_out_arithi(s, tmp, al, bl, INSN_ADDI); 683 } else { 684 tcg_out_arith(s, tmp, al, bl, INSN_ADD); 685 } 686 tcg_out_arith(s, desth, ah, bh, INSN_ADDC); 687 688 tcg_out_mov(s, TCG_TYPE_I32, destl, tmp); 689} 690 691static void tcg_out_sub2(TCGContext *s, int destl, int desth, int al, int ah, 692 int bl, int bh, int alconst, int blconst) 693{ 694 int tmp = (destl == ah || destl == bh ? TCG_REG_R20 : destl); 695 696 if (alconst) { 697 if (blconst) { 698 tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R20, bl); 699 bl = TCG_REG_R20; 700 } 701 tcg_out_arithi(s, tmp, bl, al, INSN_SUBI); 702 } else if (blconst) { 703 tcg_out_arithi(s, tmp, al, -bl, INSN_ADDI); 704 } else { 705 tcg_out_arith(s, tmp, al, bl, INSN_SUB); 706 } 707 tcg_out_arith(s, desth, ah, bh, INSN_SUBB); 708 709 tcg_out_mov(s, TCG_TYPE_I32, destl, tmp); 710} 711 712static void tcg_out_branch(TCGContext *s, int label_index, int nul) 713{ 714 TCGLabel *l = &s->labels[label_index]; 715 uint32_t op = nul ? INSN_BL_N : INSN_BL; 716 717 if (l->has_value) { 718 tcg_target_long val = l->u.value; 719 720 val -= (tcg_target_long)s->code_ptr + 8; 721 val >>= 2; 722 assert(check_fit_tl(val, 17)); 723 724 tcg_out32(s, op | reassemble_17(val)); 725 } else { 726 /* We need to keep the offset unchanged for retranslation. */ 727 uint32_t old_insn = *(uint32_t *)s->code_ptr; 728 729 tcg_out_reloc(s, s->code_ptr, R_PARISC_PCREL17F, label_index, 0); 730 tcg_out32(s, op | (old_insn & 0x1f1ffdu)); 731 } 732} 733 734static const uint8_t tcg_cond_to_cmp_cond[10] = 735{ 736 [TCG_COND_EQ] = COND_EQ, 737 [TCG_COND_NE] = COND_EQ | COND_FALSE, 738 [TCG_COND_LT] = COND_LT, 739 [TCG_COND_GE] = COND_LT | COND_FALSE, 740 [TCG_COND_LE] = COND_LE, 741 [TCG_COND_GT] = COND_LE | COND_FALSE, 742 [TCG_COND_LTU] = COND_LTU, 743 [TCG_COND_GEU] = COND_LTU | COND_FALSE, 744 [TCG_COND_LEU] = COND_LEU, 745 [TCG_COND_GTU] = COND_LEU | COND_FALSE, 746}; 747 748static void tcg_out_brcond(TCGContext *s, int cond, TCGArg c1, 749 TCGArg c2, int c2const, int label_index) 750{ 751 TCGLabel *l = &s->labels[label_index]; 752 int op, pacond; 753 754 /* Note that COMIB operates as if the immediate is the first 755 operand. We model brcond with the immediate in the second 756 to better match what targets are likely to give us. For 757 consistency, model COMB with reversed operands as well. */ 758 pacond = tcg_cond_to_cmp_cond[tcg_swap_cond(cond)]; 759 760 if (c2const) { 761 op = (pacond & COND_FALSE ? INSN_COMIBF : INSN_COMIBT); 762 op |= INSN_IM5(c2); 763 } else { 764 op = (pacond & COND_FALSE ? INSN_COMBF : INSN_COMBT); 765 op |= INSN_R1(c2); 766 } 767 op |= INSN_R2(c1); 768 op |= INSN_COND(pacond & 7); 769 770 if (l->has_value) { 771 tcg_target_long val = l->u.value; 772 773 val -= (tcg_target_long)s->code_ptr + 8; 774 val >>= 2; 775 assert(check_fit_tl(val, 12)); 776 777 /* ??? Assume that all branches to defined labels are backward. 778 Which means that if the nul bit is set, the delay slot is 779 executed if the branch is taken, and not executed in fallthru. */ 780 tcg_out32(s, op | reassemble_12(val)); 781 tcg_out_nop(s); 782 } else { 783 /* We need to keep the offset unchanged for retranslation. */ 784 uint32_t old_insn = *(uint32_t *)s->code_ptr; 785 786 tcg_out_reloc(s, s->code_ptr, R_PARISC_PCREL12F, label_index, 0); 787 /* ??? Assume that all branches to undefined labels are forward. 788 Which means that if the nul bit is set, the delay slot is 789 not executed if the branch is taken, which is what we want. */ 790 tcg_out32(s, op | 2 | (old_insn & 0x1ffdu)); 791 } 792} 793 794static void tcg_out_comclr(TCGContext *s, int cond, TCGArg ret, 795 TCGArg c1, TCGArg c2, int c2const) 796{ 797 int op, pacond; 798 799 /* Note that COMICLR operates as if the immediate is the first 800 operand. We model setcond with the immediate in the second 801 to better match what targets are likely to give us. For 802 consistency, model COMCLR with reversed operands as well. */ 803 pacond = tcg_cond_to_cmp_cond[tcg_swap_cond(cond)]; 804 805 if (c2const) { 806 op = INSN_COMICLR | INSN_R2(c1) | INSN_R1(ret) | INSN_IM11(c2); 807 } else { 808 op = INSN_COMCLR | INSN_R2(c1) | INSN_R1(c2) | INSN_T(ret); 809 } 810 op |= INSN_COND(pacond & 7); 811 op |= pacond & COND_FALSE ? 1 << 12 : 0; 812 813 tcg_out32(s, op); 814} 815 816static void tcg_out_brcond2(TCGContext *s, int cond, TCGArg al, TCGArg ah, 817 TCGArg bl, int blconst, TCGArg bh, int bhconst, 818 int label_index) 819{ 820 switch (cond) { 821 case TCG_COND_EQ: 822 case TCG_COND_NE: 823 tcg_out_comclr(s, tcg_invert_cond(cond), TCG_REG_R0, al, bl, blconst); 824 tcg_out_brcond(s, cond, ah, bh, bhconst, label_index); 825 break; 826 827 default: 828 tcg_out_brcond(s, cond, ah, bh, bhconst, label_index); 829 tcg_out_comclr(s, TCG_COND_NE, TCG_REG_R0, ah, bh, bhconst); 830 tcg_out_brcond(s, tcg_unsigned_cond(cond), 831 al, bl, blconst, label_index); 832 break; 833 } 834} 835 836static void tcg_out_setcond(TCGContext *s, int cond, TCGArg ret, 837 TCGArg c1, TCGArg c2, int c2const) 838{ 839 tcg_out_comclr(s, tcg_invert_cond(cond), ret, c1, c2, c2const); 840 tcg_out_movi(s, TCG_TYPE_I32, ret, 1); 841} 842 843static void tcg_out_setcond2(TCGContext *s, int cond, TCGArg ret, 844 TCGArg al, TCGArg ah, TCGArg bl, int blconst, 845 TCGArg bh, int bhconst) 846{ 847 int scratch = TCG_REG_R20; 848 849 if (ret != al && ret != ah 850 && (blconst || ret != bl) 851 && (bhconst || ret != bh)) { 852 scratch = ret; 853 } 854 855 switch (cond) { 856 case TCG_COND_EQ: 857 case TCG_COND_NE: 858 tcg_out_setcond(s, cond, scratch, al, bl, blconst); 859 tcg_out_comclr(s, TCG_COND_EQ, TCG_REG_R0, ah, bh, bhconst); 860 tcg_out_movi(s, TCG_TYPE_I32, scratch, cond == TCG_COND_NE); 861 break; 862 863 default: 864 tcg_out_setcond(s, tcg_unsigned_cond(cond), scratch, al, bl, blconst); 865 tcg_out_comclr(s, TCG_COND_EQ, TCG_REG_R0, ah, bh, bhconst); 866 tcg_out_movi(s, TCG_TYPE_I32, scratch, 0); 867 tcg_out_comclr(s, cond, TCG_REG_R0, ah, bh, bhconst); 868 tcg_out_movi(s, TCG_TYPE_I32, scratch, 1); 869 break; 870 } 871 872 tcg_out_mov(s, TCG_TYPE_I32, ret, scratch); 873} 874 875#if defined(CONFIG_SOFTMMU) 876#include "../../softmmu_defs.h" 877 878static void *qemu_ld_helpers[4] = { 879 __ldb_mmu, 880 __ldw_mmu, 881 __ldl_mmu, 882 __ldq_mmu, 883}; 884 885static void *qemu_st_helpers[4] = { 886 __stb_mmu, 887 __stw_mmu, 888 __stl_mmu, 889 __stq_mmu, 890}; 891 892/* Load and compare a TLB entry, and branch if TLB miss. OFFSET is set to 893 the offset of the first ADDR_READ or ADDR_WRITE member of the appropriate 894 TLB for the memory index. The return value is the offset from ENV 895 contained in R1 afterward (to be used when loading ADDEND); if the 896 return value is 0, R1 is not used. */ 897 898static int tcg_out_tlb_read(TCGContext *s, int r0, int r1, int addrlo, 899 int addrhi, int s_bits, int lab_miss, int offset) 900{ 901 int ret; 902 903 /* Extracting the index into the TLB. The "normal C operation" is 904 r1 = addr_reg >> TARGET_PAGE_BITS; 905 r1 &= CPU_TLB_SIZE - 1; 906 r1 <<= CPU_TLB_ENTRY_BITS; 907 What this does is extract CPU_TLB_BITS beginning at TARGET_PAGE_BITS 908 and place them at CPU_TLB_ENTRY_BITS. We can combine the first two 909 operations with an EXTRU. Unfortunately, the current value of 910 CPU_TLB_ENTRY_BITS is > 3, so we can't merge that shift with the 911 add that follows. */ 912 tcg_out_extr(s, r1, addrlo, TARGET_PAGE_BITS, CPU_TLB_BITS, 0); 913 tcg_out_shli(s, r1, r1, CPU_TLB_ENTRY_BITS); 914 tcg_out_arith(s, r1, r1, TCG_AREG0, INSN_ADDL); 915 916 /* Make sure that both the addr_{read,write} and addend can be 917 read with a 14-bit offset from the same base register. */ 918 if (check_fit_tl(offset + CPU_TLB_SIZE, 14)) { 919 ret = 0; 920 } else { 921 ret = (offset + 0x400) & ~0x7ff; 922 offset = ret - offset; 923 tcg_out_addi2(s, TCG_REG_R1, r1, ret); 924 r1 = TCG_REG_R1; 925 } 926 927 /* Load the entry from the computed slot. */ 928 if (TARGET_LONG_BITS == 64) { 929 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R23, r1, offset); 930 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, r1, offset + 4); 931 } else { 932 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, r1, offset); 933 } 934 935 /* Compute the value that ought to appear in the TLB for a hit, namely, the page 936 of the address. We include the low N bits of the address to catch unaligned 937 accesses and force them onto the slow path. Do this computation after having 938 issued the load from the TLB slot to give the load time to complete. */ 939 tcg_out_andi(s, r0, addrlo, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); 940 941 /* If not equal, jump to lab_miss. */ 942 if (TARGET_LONG_BITS == 64) { 943 tcg_out_brcond2(s, TCG_COND_NE, TCG_REG_R20, TCG_REG_R23, 944 r0, 0, addrhi, 0, lab_miss); 945 } else { 946 tcg_out_brcond(s, TCG_COND_NE, TCG_REG_R20, r0, 0, lab_miss); 947 } 948 949 return ret; 950} 951#endif 952 953static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo_reg, int datahi_reg, 954 int addr_reg, int addend_reg, int opc) 955{ 956#ifdef TARGET_WORDS_BIGENDIAN 957 const int bswap = 0; 958#else 959 const int bswap = 1; 960#endif 961 962 switch (opc) { 963 case 0: 964 tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDBX); 965 break; 966 case 0 | 4: 967 tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDBX); 968 tcg_out_ext8s(s, datalo_reg, datalo_reg); 969 break; 970 case 1: 971 tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDHX); 972 if (bswap) { 973 tcg_out_bswap16(s, datalo_reg, datalo_reg, 0); 974 } 975 break; 976 case 1 | 4: 977 tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDHX); 978 if (bswap) { 979 tcg_out_bswap16(s, datalo_reg, datalo_reg, 1); 980 } else { 981 tcg_out_ext16s(s, datalo_reg, datalo_reg); 982 } 983 break; 984 case 2: 985 tcg_out_ldst_index(s, datalo_reg, addr_reg, addend_reg, INSN_LDWX); 986 if (bswap) { 987 tcg_out_bswap32(s, datalo_reg, datalo_reg, TCG_REG_R20); 988 } 989 break; 990 case 3: 991 if (bswap) { 992 int t = datahi_reg; 993 datahi_reg = datalo_reg; 994 datalo_reg = t; 995 } 996 /* We can't access the low-part with a reg+reg addressing mode, 997 so perform the addition now and use reg_ofs addressing mode. */ 998 if (addend_reg != TCG_REG_R0) { 999 tcg_out_arith(s, TCG_REG_R20, addr_reg, addend_reg, INSN_ADD); 1000 addr_reg = TCG_REG_R20; 1001 } 1002 /* Make sure not to clobber the base register. */ 1003 if (datahi_reg == addr_reg) { 1004 tcg_out_ldst(s, datalo_reg, addr_reg, 4, INSN_LDW); 1005 tcg_out_ldst(s, datahi_reg, addr_reg, 0, INSN_LDW); 1006 } else { 1007 tcg_out_ldst(s, datahi_reg, addr_reg, 0, INSN_LDW); 1008 tcg_out_ldst(s, datalo_reg, addr_reg, 4, INSN_LDW); 1009 } 1010 if (bswap) { 1011 tcg_out_bswap32(s, datalo_reg, datalo_reg, TCG_REG_R20); 1012 tcg_out_bswap32(s, datahi_reg, datahi_reg, TCG_REG_R20); 1013 } 1014 break; 1015 default: 1016 tcg_abort(); 1017 } 1018} 1019 1020static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) 1021{ 1022 int datalo_reg = *args++; 1023 /* Note that datahi_reg is only used for 64-bit loads. */ 1024 int datahi_reg = (opc == 3 ? *args++ : TCG_REG_R0); 1025 int addrlo_reg = *args++; 1026 1027#if defined(CONFIG_SOFTMMU) 1028 /* Note that addrhi_reg is only used for 64-bit guests. */ 1029 int addrhi_reg = (TARGET_LONG_BITS == 64 ? *args++ : TCG_REG_R0); 1030 int mem_index = *args; 1031 int lab1, lab2, argreg, offset; 1032 1033 lab1 = gen_new_label(); 1034 lab2 = gen_new_label(); 1035 1036 offset = offsetof(CPUState, tlb_table[mem_index][0].addr_read); 1037 offset = tcg_out_tlb_read(s, TCG_REG_R26, TCG_REG_R25, addrlo_reg, addrhi_reg, 1038 opc & 3, lab1, offset); 1039 1040 /* TLB Hit. */ 1041 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, (offset ? TCG_REG_R1 : TCG_REG_R25), 1042 offsetof(CPUState, tlb_table[mem_index][0].addend) - offset); 1043 tcg_out_qemu_ld_direct(s, datalo_reg, datahi_reg, addrlo_reg, TCG_REG_R20, opc); 1044 tcg_out_branch(s, lab2, 1); 1045 1046 /* TLB Miss. */ 1047 /* label1: */ 1048 tcg_out_label(s, lab1, (tcg_target_long)s->code_ptr); 1049 1050 argreg = TCG_REG_R26; 1051 tcg_out_mov(s, TCG_TYPE_I32, argreg--, addrlo_reg); 1052 if (TARGET_LONG_BITS == 64) { 1053 tcg_out_mov(s, TCG_TYPE_I32, argreg--, addrhi_reg); 1054 } 1055 tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); 1056 1057 tcg_out_call(s, qemu_ld_helpers[opc & 3]); 1058 1059 switch (opc) { 1060 case 0: 1061 tcg_out_andi(s, datalo_reg, TCG_REG_RET0, 0xff); 1062 break; 1063 case 0 | 4: 1064 tcg_out_ext8s(s, datalo_reg, TCG_REG_RET0); 1065 break; 1066 case 1: 1067 tcg_out_andi(s, datalo_reg, TCG_REG_RET0, 0xffff); 1068 break; 1069 case 1 | 4: 1070 tcg_out_ext16s(s, datalo_reg, TCG_REG_RET0); 1071 break; 1072 case 2: 1073 case 2 | 4: 1074 tcg_out_mov(s, TCG_TYPE_I32, datalo_reg, TCG_REG_RET0); 1075 break; 1076 case 3: 1077 tcg_out_mov(s, TCG_TYPE_I32, datahi_reg, TCG_REG_RET0); 1078 tcg_out_mov(s, TCG_TYPE_I32, datalo_reg, TCG_REG_RET1); 1079 break; 1080 default: 1081 tcg_abort(); 1082 } 1083 1084 /* label2: */ 1085 tcg_out_label(s, lab2, (tcg_target_long)s->code_ptr); 1086#else 1087 tcg_out_qemu_ld_direct(s, datalo_reg, datahi_reg, addrlo_reg, 1088 (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_R0), opc); 1089#endif 1090} 1091 1092static void tcg_out_qemu_st_direct(TCGContext *s, int datalo_reg, int datahi_reg, 1093 int addr_reg, int opc) 1094{ 1095#ifdef TARGET_WORDS_BIGENDIAN 1096 const int bswap = 0; 1097#else 1098 const int bswap = 1; 1099#endif 1100 1101 switch (opc) { 1102 case 0: 1103 tcg_out_ldst(s, datalo_reg, addr_reg, 0, INSN_STB); 1104 break; 1105 case 1: 1106 if (bswap) { 1107 tcg_out_bswap16(s, TCG_REG_R20, datalo_reg, 0); 1108 datalo_reg = TCG_REG_R20; 1109 } 1110 tcg_out_ldst(s, datalo_reg, addr_reg, 0, INSN_STH); 1111 break; 1112 case 2: 1113 if (bswap) { 1114 tcg_out_bswap32(s, TCG_REG_R20, datalo_reg, TCG_REG_R20); 1115 datalo_reg = TCG_REG_R20; 1116 } 1117 tcg_out_ldst(s, datalo_reg, addr_reg, 0, INSN_STW); 1118 break; 1119 case 3: 1120 if (bswap) { 1121 tcg_out_bswap32(s, TCG_REG_R20, datalo_reg, TCG_REG_R20); 1122 tcg_out_bswap32(s, TCG_REG_R23, datahi_reg, TCG_REG_R23); 1123 datahi_reg = TCG_REG_R20; 1124 datalo_reg = TCG_REG_R23; 1125 } 1126 tcg_out_ldst(s, datahi_reg, addr_reg, 0, INSN_STW); 1127 tcg_out_ldst(s, datalo_reg, addr_reg, 4, INSN_STW); 1128 break; 1129 default: 1130 tcg_abort(); 1131 } 1132 1133} 1134 1135static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) 1136{ 1137 int datalo_reg = *args++; 1138 /* Note that datahi_reg is only used for 64-bit loads. */ 1139 int datahi_reg = (opc == 3 ? *args++ : TCG_REG_R0); 1140 int addrlo_reg = *args++; 1141 1142#if defined(CONFIG_SOFTMMU) 1143 /* Note that addrhi_reg is only used for 64-bit guests. */ 1144 int addrhi_reg = (TARGET_LONG_BITS == 64 ? *args++ : TCG_REG_R0); 1145 int mem_index = *args; 1146 int lab1, lab2, argreg, offset; 1147 1148 lab1 = gen_new_label(); 1149 lab2 = gen_new_label(); 1150 1151 offset = offsetof(CPUState, tlb_table[mem_index][0].addr_write); 1152 offset = tcg_out_tlb_read(s, TCG_REG_R26, TCG_REG_R25, addrlo_reg, addrhi_reg, 1153 opc, lab1, offset); 1154 1155 /* TLB Hit. */ 1156 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, (offset ? TCG_REG_R1 : TCG_REG_R25), 1157 offsetof(CPUState, tlb_table[mem_index][0].addend) - offset); 1158 1159 /* There are no indexed stores, so we must do this addition explitly. 1160 Careful to avoid R20, which is used for the bswaps to follow. */ 1161 tcg_out_arith(s, TCG_REG_R31, addrlo_reg, TCG_REG_R20, INSN_ADDL); 1162 tcg_out_qemu_st_direct(s, datalo_reg, datahi_reg, TCG_REG_R31, opc); 1163 tcg_out_branch(s, lab2, 1); 1164 1165 /* TLB Miss. */ 1166 /* label1: */ 1167 tcg_out_label(s, lab1, (tcg_target_long)s->code_ptr); 1168 1169 argreg = TCG_REG_R26; 1170 tcg_out_mov(s, TCG_TYPE_I32, argreg--, addrlo_reg); 1171 if (TARGET_LONG_BITS == 64) { 1172 tcg_out_mov(s, TCG_TYPE_I32, argreg--, addrhi_reg); 1173 } 1174 1175 switch(opc) { 1176 case 0: 1177 tcg_out_andi(s, argreg--, datalo_reg, 0xff); 1178 tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); 1179 break; 1180 case 1: 1181 tcg_out_andi(s, argreg--, datalo_reg, 0xffff); 1182 tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); 1183 break; 1184 case 2: 1185 tcg_out_mov(s, TCG_TYPE_I32, argreg--, datalo_reg); 1186 tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); 1187 break; 1188 case 3: 1189 /* Because of the alignment required by the 64-bit data argument, 1190 we will always use R23/R24. Also, we will always run out of 1191 argument registers for storing mem_index, so that will have 1192 to go on the stack. */ 1193 if (mem_index == 0) { 1194 argreg = TCG_REG_R0; 1195 } else { 1196 argreg = TCG_REG_R20; 1197 tcg_out_movi(s, TCG_TYPE_I32, argreg, mem_index); 1198 } 1199 tcg_out_mov(s, TCG_TYPE_I32, TCG_REG_R23, datahi_reg); 1200 tcg_out_mov(s, TCG_TYPE_I32, TCG_REG_R24, datalo_reg); 1201 tcg_out_st(s, TCG_TYPE_I32, argreg, TCG_REG_SP, 1202 TCG_TARGET_CALL_STACK_OFFSET - 4); 1203 break; 1204 default: 1205 tcg_abort(); 1206 } 1207 1208 tcg_out_call(s, qemu_st_helpers[opc]); 1209 1210 /* label2: */ 1211 tcg_out_label(s, lab2, (tcg_target_long)s->code_ptr); 1212#else 1213 /* There are no indexed stores, so if GUEST_BASE is set we must do the add 1214 explicitly. Careful to avoid R20, which is used for the bswaps to follow. */ 1215 if (GUEST_BASE != 0) { 1216 tcg_out_arith(s, TCG_REG_R31, addrlo_reg, TCG_GUEST_BASE_REG, INSN_ADDL); 1217 addrlo_reg = TCG_REG_R31; 1218 } 1219 tcg_out_qemu_st_direct(s, datalo_reg, datahi_reg, addrlo_reg, opc); 1220#endif 1221} 1222 1223static void tcg_out_exit_tb(TCGContext *s, TCGArg arg) 1224{ 1225 if (!check_fit_tl(arg, 14)) { 1226 uint32_t hi, lo; 1227 hi = arg & ~0x7ff; 1228 lo = arg & 0x7ff; 1229 if (lo) { 1230 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RET0, hi); 1231 tcg_out32(s, INSN_BV | INSN_R2(TCG_REG_R18)); 1232 tcg_out_addi(s, TCG_REG_RET0, lo); 1233 return; 1234 } 1235 arg = hi; 1236 } 1237 tcg_out32(s, INSN_BV | INSN_R2(TCG_REG_R18)); 1238 tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RET0, arg); 1239} 1240 1241static void tcg_out_goto_tb(TCGContext *s, TCGArg arg) 1242{ 1243 if (s->tb_jmp_offset) { 1244 /* direct jump method */ 1245 fprintf(stderr, "goto_tb direct\n"); 1246 tcg_abort(); 1247 } else { 1248 /* indirect jump method */ 1249 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R20, TCG_REG_R0, 1250 (tcg_target_long)(s->tb_next + arg)); 1251 tcg_out32(s, INSN_BV_N | INSN_R2(TCG_REG_R20)); 1252 } 1253 s->tb_next_offset[arg] = s->code_ptr - s->code_buf; 1254} 1255 1256static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, 1257 const int *const_args) 1258{ 1259 switch (opc) { 1260 case INDEX_op_exit_tb: 1261 tcg_out_exit_tb(s, args[0]); 1262 break; 1263 case INDEX_op_goto_tb: 1264 tcg_out_goto_tb(s, args[0]); 1265 break; 1266 1267 case INDEX_op_call: 1268 if (const_args[0]) { 1269 tcg_out_call(s, (void *)args[0]); 1270 } else { 1271 /* ??? FIXME: the value in the register in args[0] is almost 1272 certainly a procedure descriptor, not a code address. We 1273 probably need to use the millicode $$dyncall routine. */ 1274 tcg_abort(); 1275 } 1276 break; 1277 1278 case INDEX_op_jmp: 1279 fprintf(stderr, "unimplemented jmp\n"); 1280 tcg_abort(); 1281 break; 1282 1283 case INDEX_op_br: 1284 tcg_out_branch(s, args[0], 1); 1285 break; 1286 1287 case INDEX_op_movi_i32: 1288 tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]); 1289 break; 1290 1291 case INDEX_op_ld8u_i32: 1292 tcg_out_ldst(s, args[0], args[1], args[2], INSN_LDB); 1293 break; 1294 case INDEX_op_ld8s_i32: 1295 tcg_out_ldst(s, args[0], args[1], args[2], INSN_LDB); 1296 tcg_out_ext8s(s, args[0], args[0]); 1297 break; 1298 case INDEX_op_ld16u_i32: 1299 tcg_out_ldst(s, args[0], args[1], args[2], INSN_LDH); 1300 break; 1301 case INDEX_op_ld16s_i32: 1302 tcg_out_ldst(s, args[0], args[1], args[2], INSN_LDH); 1303 tcg_out_ext16s(s, args[0], args[0]); 1304 break; 1305 case INDEX_op_ld_i32: 1306 tcg_out_ldst(s, args[0], args[1], args[2], INSN_LDW); 1307 break; 1308 1309 case INDEX_op_st8_i32: 1310 tcg_out_ldst(s, args[0], args[1], args[2], INSN_STB); 1311 break; 1312 case INDEX_op_st16_i32: 1313 tcg_out_ldst(s, args[0], args[1], args[2], INSN_STH); 1314 break; 1315 case INDEX_op_st_i32: 1316 tcg_out_ldst(s, args[0], args[1], args[2], INSN_STW); 1317 break; 1318 1319 case INDEX_op_add_i32: 1320 if (const_args[2]) { 1321 tcg_out_addi2(s, args[0], args[1], args[2]); 1322 } else { 1323 tcg_out_arith(s, args[0], args[1], args[2], INSN_ADDL); 1324 } 1325 break; 1326 1327 case INDEX_op_sub_i32: 1328 if (const_args[1]) { 1329 if (const_args[2]) { 1330 tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1] - args[2]); 1331 } else { 1332 /* Recall that SUBI is a reversed subtract. */ 1333 tcg_out_arithi(s, args[0], args[2], args[1], INSN_SUBI); 1334 } 1335 } else if (const_args[2]) { 1336 tcg_out_addi2(s, args[0], args[1], -args[2]); 1337 } else { 1338 tcg_out_arith(s, args[0], args[1], args[2], INSN_SUB); 1339 } 1340 break; 1341 1342 case INDEX_op_and_i32: 1343 if (const_args[2]) { 1344 tcg_out_andi(s, args[0], args[1], args[2]); 1345 } else { 1346 tcg_out_arith(s, args[0], args[1], args[2], INSN_AND); 1347 } 1348 break; 1349 1350 case INDEX_op_or_i32: 1351 if (const_args[2]) { 1352 tcg_out_ori(s, args[0], args[1], args[2]); 1353 } else { 1354 tcg_out_arith(s, args[0], args[1], args[2], INSN_OR); 1355 } 1356 break; 1357 1358 case INDEX_op_xor_i32: 1359 tcg_out_arith(s, args[0], args[1], args[2], INSN_XOR); 1360 break; 1361 1362 case INDEX_op_andc_i32: 1363 if (const_args[2]) { 1364 tcg_out_andi(s, args[0], args[1], ~args[2]); 1365 } else { 1366 tcg_out_arith(s, args[0], args[1], args[2], INSN_ANDCM); 1367 } 1368 break; 1369 1370 case INDEX_op_shl_i32: 1371 if (const_args[2]) { 1372 tcg_out_shli(s, args[0], args[1], args[2]); 1373 } else { 1374 tcg_out_shl(s, args[0], args[1], args[2]); 1375 } 1376 break; 1377 1378 case INDEX_op_shr_i32: 1379 if (const_args[2]) { 1380 tcg_out_shri(s, args[0], args[1], args[2]); 1381 } else { 1382 tcg_out_shr(s, args[0], args[1], args[2]); 1383 } 1384 break; 1385 1386 case INDEX_op_sar_i32: 1387 if (const_args[2]) { 1388 tcg_out_sari(s, args[0], args[1], args[2]); 1389 } else { 1390 tcg_out_sar(s, args[0], args[1], args[2]); 1391 } 1392 break; 1393 1394 case INDEX_op_rotl_i32: 1395 if (const_args[2]) { 1396 tcg_out_rotli(s, args[0], args[1], args[2]); 1397 } else { 1398 tcg_out_rotl(s, args[0], args[1], args[2]); 1399 } 1400 break; 1401 1402 case INDEX_op_rotr_i32: 1403 if (const_args[2]) { 1404 tcg_out_rotri(s, args[0], args[1], args[2]); 1405 } else { 1406 tcg_out_rotr(s, args[0], args[1], args[2]); 1407 } 1408 break; 1409 1410 case INDEX_op_mul_i32: 1411 tcg_out_xmpyu(s, args[0], TCG_REG_R0, args[1], args[2]); 1412 break; 1413 case INDEX_op_mulu2_i32: 1414 tcg_out_xmpyu(s, args[0], args[1], args[2], args[3]); 1415 break; 1416 1417 case INDEX_op_bswap16_i32: 1418 tcg_out_bswap16(s, args[0], args[1], 0); 1419 break; 1420 case INDEX_op_bswap32_i32: 1421 tcg_out_bswap32(s, args[0], args[1], TCG_REG_R20); 1422 break; 1423 1424 case INDEX_op_not_i32: 1425 tcg_out_arithi(s, args[0], args[1], -1, INSN_SUBI); 1426 break; 1427 case INDEX_op_ext8s_i32: 1428 tcg_out_ext8s(s, args[0], args[1]); 1429 break; 1430 case INDEX_op_ext16s_i32: 1431 tcg_out_ext16s(s, args[0], args[1]); 1432 break; 1433 1434 case INDEX_op_brcond_i32: 1435 tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], args[3]); 1436 break; 1437 case INDEX_op_brcond2_i32: 1438 tcg_out_brcond2(s, args[4], args[0], args[1], 1439 args[2], const_args[2], 1440 args[3], const_args[3], args[5]); 1441 break; 1442 1443 case INDEX_op_setcond_i32: 1444 tcg_out_setcond(s, args[3], args[0], args[1], args[2], const_args[2]); 1445 break; 1446 case INDEX_op_setcond2_i32: 1447 tcg_out_setcond2(s, args[5], args[0], args[1], args[2], 1448 args[3], const_args[3], args[4], const_args[4]); 1449 break; 1450 1451 case INDEX_op_add2_i32: 1452 tcg_out_add2(s, args[0], args[1], args[2], args[3], 1453 args[4], args[5], const_args[4]); 1454 break; 1455 1456 case INDEX_op_sub2_i32: 1457 tcg_out_sub2(s, args[0], args[1], args[2], args[3], 1458 args[4], args[5], const_args[2], const_args[4]); 1459 break; 1460 1461 case INDEX_op_qemu_ld8u: 1462 tcg_out_qemu_ld(s, args, 0); 1463 break; 1464 case INDEX_op_qemu_ld8s: 1465 tcg_out_qemu_ld(s, args, 0 | 4); 1466 break; 1467 case INDEX_op_qemu_ld16u: 1468 tcg_out_qemu_ld(s, args, 1); 1469 break; 1470 case INDEX_op_qemu_ld16s: 1471 tcg_out_qemu_ld(s, args, 1 | 4); 1472 break; 1473 case INDEX_op_qemu_ld32: 1474 tcg_out_qemu_ld(s, args, 2); 1475 break; 1476 case INDEX_op_qemu_ld64: 1477 tcg_out_qemu_ld(s, args, 3); 1478 break; 1479 1480 case INDEX_op_qemu_st8: 1481 tcg_out_qemu_st(s, args, 0); 1482 break; 1483 case INDEX_op_qemu_st16: 1484 tcg_out_qemu_st(s, args, 1); 1485 break; 1486 case INDEX_op_qemu_st32: 1487 tcg_out_qemu_st(s, args, 2); 1488 break; 1489 case INDEX_op_qemu_st64: 1490 tcg_out_qemu_st(s, args, 3); 1491 break; 1492 1493 default: 1494 fprintf(stderr, "unknown opcode 0x%x\n", opc); 1495 tcg_abort(); 1496 } 1497} 1498 1499static const TCGTargetOpDef hppa_op_defs[] = { 1500 { INDEX_op_exit_tb, { } }, 1501 { INDEX_op_goto_tb, { } }, 1502 1503 { INDEX_op_call, { "ri" } }, 1504 { INDEX_op_jmp, { "r" } }, 1505 { INDEX_op_br, { } }, 1506 1507 { INDEX_op_mov_i32, { "r", "r" } }, 1508 { INDEX_op_movi_i32, { "r" } }, 1509 1510 { INDEX_op_ld8u_i32, { "r", "r" } }, 1511 { INDEX_op_ld8s_i32, { "r", "r" } }, 1512 { INDEX_op_ld16u_i32, { "r", "r" } }, 1513 { INDEX_op_ld16s_i32, { "r", "r" } }, 1514 { INDEX_op_ld_i32, { "r", "r" } }, 1515 { INDEX_op_st8_i32, { "rZ", "r" } }, 1516 { INDEX_op_st16_i32, { "rZ", "r" } }, 1517 { INDEX_op_st_i32, { "rZ", "r" } }, 1518 1519 { INDEX_op_add_i32, { "r", "rZ", "ri" } }, 1520 { INDEX_op_sub_i32, { "r", "rI", "ri" } }, 1521 { INDEX_op_and_i32, { "r", "rZ", "rM" } }, 1522 { INDEX_op_or_i32, { "r", "rZ", "rO" } }, 1523 { INDEX_op_xor_i32, { "r", "rZ", "rZ" } }, 1524 /* Note that the second argument will be inverted, which means 1525 we want a constant whose inversion matches M, and that O = ~M. 1526 See the implementation of and_mask_p. */ 1527 { INDEX_op_andc_i32, { "r", "rZ", "rO" } }, 1528 1529 { INDEX_op_mul_i32, { "r", "r", "r" } }, 1530 { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } }, 1531 1532 { INDEX_op_shl_i32, { "r", "r", "ri" } }, 1533 { INDEX_op_shr_i32, { "r", "r", "ri" } }, 1534 { INDEX_op_sar_i32, { "r", "r", "ri" } }, 1535 { INDEX_op_rotl_i32, { "r", "r", "ri" } }, 1536 { INDEX_op_rotr_i32, { "r", "r", "ri" } }, 1537 1538 { INDEX_op_bswap16_i32, { "r", "r" } }, 1539 { INDEX_op_bswap32_i32, { "r", "r" } }, 1540 { INDEX_op_not_i32, { "r", "r" } }, 1541 1542 { INDEX_op_ext8s_i32, { "r", "r" } }, 1543 { INDEX_op_ext16s_i32, { "r", "r" } }, 1544 1545 { INDEX_op_brcond_i32, { "rZ", "rJ" } }, 1546 { INDEX_op_brcond2_i32, { "rZ", "rZ", "rJ", "rJ" } }, 1547 1548 { INDEX_op_setcond_i32, { "r", "rZ", "rI" } }, 1549 { INDEX_op_setcond2_i32, { "r", "rZ", "rZ", "rI", "rI" } }, 1550 1551 { INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rI", "rZ" } }, 1552 { INDEX_op_sub2_i32, { "r", "r", "rI", "rZ", "rK", "rZ" } }, 1553 1554#if TARGET_LONG_BITS == 32 1555 { INDEX_op_qemu_ld8u, { "r", "L" } }, 1556 { INDEX_op_qemu_ld8s, { "r", "L" } }, 1557 { INDEX_op_qemu_ld16u, { "r", "L" } }, 1558 { INDEX_op_qemu_ld16s, { "r", "L" } }, 1559 { INDEX_op_qemu_ld32, { "r", "L" } }, 1560 { INDEX_op_qemu_ld64, { "r", "r", "L" } }, 1561 1562 { INDEX_op_qemu_st8, { "LZ", "L" } }, 1563 { INDEX_op_qemu_st16, { "LZ", "L" } }, 1564 { INDEX_op_qemu_st32, { "LZ", "L" } }, 1565 { INDEX_op_qemu_st64, { "LZ", "LZ", "L" } }, 1566#else 1567 { INDEX_op_qemu_ld8u, { "r", "L", "L" } }, 1568 { INDEX_op_qemu_ld8s, { "r", "L", "L" } }, 1569 { INDEX_op_qemu_ld16u, { "r", "L", "L" } }, 1570 { INDEX_op_qemu_ld16s, { "r", "L", "L" } }, 1571 { INDEX_op_qemu_ld32, { "r", "L", "L" } }, 1572 { INDEX_op_qemu_ld64, { "r", "r", "L", "L" } }, 1573 1574 { INDEX_op_qemu_st8, { "LZ", "L", "L" } }, 1575 { INDEX_op_qemu_st16, { "LZ", "L", "L" } }, 1576 { INDEX_op_qemu_st32, { "LZ", "L", "L" } }, 1577 { INDEX_op_qemu_st64, { "LZ", "LZ", "L", "L" } }, 1578#endif 1579 { -1 }, 1580}; 1581 1582static int tcg_target_callee_save_regs[] = { 1583 /* R2, the return address register, is saved specially 1584 in the caller's frame. */ 1585 /* R3, the frame pointer, is not currently modified. */ 1586 TCG_REG_R4, 1587 TCG_REG_R5, 1588 TCG_REG_R6, 1589 TCG_REG_R7, 1590 TCG_REG_R8, 1591 TCG_REG_R9, 1592 TCG_REG_R10, 1593 TCG_REG_R11, 1594 TCG_REG_R12, 1595 TCG_REG_R13, 1596 TCG_REG_R14, 1597 TCG_REG_R15, 1598 TCG_REG_R16, 1599 /* R17 is the global env, so no need to save. */ 1600 TCG_REG_R18 1601}; 1602 1603static void tcg_target_qemu_prologue(TCGContext *s) 1604{ 1605 int frame_size, i; 1606 1607 /* Allocate space for the fixed frame marker. */ 1608 frame_size = -TCG_TARGET_CALL_STACK_OFFSET; 1609 frame_size += TCG_TARGET_STATIC_CALL_ARGS_SIZE; 1610 1611 /* Allocate space for the saved registers. */ 1612 frame_size += ARRAY_SIZE(tcg_target_callee_save_regs) * 4; 1613 1614 /* Align the allocated space. */ 1615 frame_size = ((frame_size + TCG_TARGET_STACK_ALIGN - 1) 1616 & -TCG_TARGET_STACK_ALIGN); 1617 1618 /* The return address is stored in the caller's frame. */ 1619 tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_RP, TCG_REG_SP, -20); 1620 1621 /* Allocate stack frame, saving the first register at the same time. */ 1622 tcg_out_ldst(s, tcg_target_callee_save_regs[0], 1623 TCG_REG_SP, frame_size, INSN_STWM); 1624 1625 /* Save all callee saved registers. */ 1626 for (i = 1; i < ARRAY_SIZE(tcg_target_callee_save_regs); i++) { 1627 tcg_out_st(s, TCG_TYPE_PTR, tcg_target_callee_save_regs[i], 1628 TCG_REG_SP, -frame_size + i * 4); 1629 } 1630 1631#ifdef CONFIG_USE_GUEST_BASE 1632 if (GUEST_BASE != 0) { 1633 tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE); 1634 tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); 1635 } 1636#endif 1637 1638 /* Jump to TB, and adjust R18 to be the return address. */ 1639 tcg_out32(s, INSN_BLE_SR4 | INSN_R2(TCG_REG_R26)); 1640 tcg_out_mov(s, TCG_TYPE_I32, TCG_REG_R18, TCG_REG_R31); 1641 1642 /* Restore callee saved registers. */ 1643 tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_RP, TCG_REG_SP, -frame_size - 20); 1644 for (i = 1; i < ARRAY_SIZE(tcg_target_callee_save_regs); i++) { 1645 tcg_out_ld(s, TCG_TYPE_PTR, tcg_target_callee_save_regs[i], 1646 TCG_REG_SP, -frame_size + i * 4); 1647 } 1648 1649 /* Deallocate stack frame and return. */ 1650 tcg_out32(s, INSN_BV | INSN_R2(TCG_REG_RP)); 1651 tcg_out_ldst(s, tcg_target_callee_save_regs[0], 1652 TCG_REG_SP, -frame_size, INSN_LDWM); 1653} 1654 1655static void tcg_target_init(TCGContext *s) 1656{ 1657 tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); 1658 1659 tcg_regset_clear(tcg_target_call_clobber_regs); 1660 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R20); 1661 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R21); 1662 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R22); 1663 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R23); 1664 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R24); 1665 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R25); 1666 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R26); 1667 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_RET0); 1668 tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_RET1); 1669 1670 tcg_regset_clear(s->reserved_regs); 1671 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* hardwired to zero */ 1672 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* addil target */ 1673 tcg_regset_set_reg(s->reserved_regs, TCG_REG_RP); /* link register */ 1674 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R3); /* frame pointer */ 1675 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R18); /* return pointer */ 1676 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R19); /* clobbered w/o pic */ 1677 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R20); /* reserved */ 1678 tcg_regset_set_reg(s->reserved_regs, TCG_REG_DP); /* data pointer */ 1679 tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP); /* stack pointer */ 1680 tcg_regset_set_reg(s->reserved_regs, TCG_REG_R31); /* ble link reg */ 1681 1682 tcg_add_target_add_op_defs(hppa_op_defs); 1683} 1684