arch/mips/mm/uasm.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * A small micro-assembler. It is intentionally kept simple, does only
   7  * support a subset of instructions, and does not try to hide pipeline
   8  * effects like branch delay slots.
   9  *
  10  * Copyright (C) 2004, 2005, 2006, 2008  Thiemo Seufer
  11  * Copyright (C) 2005, 2007  Maciej W. Rozycki
  12  * Copyright (C) 2006  Ralf Baechle (ralf@linux-mips.org)
  13  * Copyright (C) 2012, 2013  MIPS Technologies, Inc.  All rights reserved.
  14  */
  15
  16 enum fields {
  17         RS = 0x001,
  18         RT = 0x002,
  19         RD = 0x004,
  20         RE = 0x008,
  21         SIMM = 0x010,
  22         UIMM = 0x020,
  23         BIMM = 0x040,
  24         JIMM = 0x080,
  25         FUNC = 0x100,
  26         SET = 0x200,
  27         SCIMM = 0x400,
  28         SIMM9 = 0x800,
  29 };
  30
  31 #define OP_MASK         0x3f
  32 #define OP_SH           26
  33 #define RD_MASK         0x1f
  34 #define RD_SH           11
  35 #define RE_MASK         0x1f
  36 #define RE_SH           6
  37 #define IMM_MASK        0xffff
  38 #define IMM_SH          0
  39 #define JIMM_MASK       0x3ffffff
  40 #define JIMM_SH         0
  41 #define FUNC_MASK       0x3f
  42 #define FUNC_SH         0
  43 #define SET_MASK        0x7
  44 #define SET_SH          0
  45 #define SIMM9_SH        7
  46 #define SIMM9_MASK      0x1ff
  47
  48 enum opcode {
  49         insn_invalid,
  50         insn_addiu, insn_addu, insn_and, insn_andi, insn_bbit0, insn_bbit1,
  51         insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
  52         insn_bne, insn_cache, insn_cfc1, insn_cfcmsa, insn_ctc1, insn_ctcmsa,
  53         insn_daddiu, insn_daddu, insn_di, insn_dins, insn_dinsm, insn_divu,
  54         insn_dmfc0, insn_dmtc0, insn_drotr, insn_drotr32, insn_dsll,
  55         insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, insn_dsubu, insn_eret,
  56         insn_ext, insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb,
  57         insn_ld, insn_ldx, insn_lh, insn_ll, insn_lld, insn_lui, insn_lw,
  58         insn_lwx, insn_mfc0, insn_mfhc0, insn_mfhi, insn_mflo, insn_mtc0,
  59         insn_mthc0, insn_mthi, insn_mtlo, insn_mul, insn_or, insn_ori,
  60         insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd, insn_sd, insn_sll,
  61         insn_sllv, insn_slt, insn_sltiu, insn_sltu, insn_sra, insn_srl,
  62         insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall, insn_tlbp,
  63         insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh, insn_xor,
  64         insn_xori, insn_yield, insn_lddir, insn_ldpte, insn_lhu,
  65 };
  66
  67 struct insn {
  68         enum opcode opcode;
  69         u32 match;
  70         enum fields fields;
  71 };
  72
  73 static inline u32 build_rs(u32 arg)
  74 {
  75         WARN(arg & ~RS_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  76
  77         return (arg & RS_MASK) << RS_SH;
  78 }
  79
  80 static inline u32 build_rt(u32 arg)
  81 {
  82         WARN(arg & ~RT_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  83
  84         return (arg & RT_MASK) << RT_SH;
  85 }
  86
  87 static inline u32 build_rd(u32 arg)
  88 {
  89         WARN(arg & ~RD_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  90
  91         return (arg & RD_MASK) << RD_SH;
  92 }
  93
  94 static inline u32 build_re(u32 arg)
  95 {
  96         WARN(arg & ~RE_MASK, KERN_WARNING "Micro-assembler field overflow\n");
  97
  98         return (arg & RE_MASK) << RE_SH;
  99 }
 100
 101 static inline u32 build_simm(s32 arg)
 102 {
 103         WARN(arg > 0x7fff || arg < -0x8000,
 104              KERN_WARNING "Micro-assembler field overflow\n");
 105
 106         return arg & 0xffff;
 107 }
 108
 109 static inline u32 build_uimm(u32 arg)
 110 {
 111         WARN(arg & ~IMM_MASK, KERN_WARNING "Micro-assembler field overflow\n");
 112
 113         return arg & IMM_MASK;
 114 }
 115
 116 static inline u32 build_scimm(u32 arg)
 117 {
 118         WARN(arg & ~SCIMM_MASK,
 119              KERN_WARNING "Micro-assembler field overflow\n");
 120
 121         return (arg & SCIMM_MASK) << SCIMM_SH;
 122 }
 123
 124 static inline u32 build_scimm9(s32 arg)
 125 {
 126         WARN((arg > 0xff || arg < -0x100),
 127                KERN_WARNING "Micro-assembler field overflow\n");
 128
 129         return (arg & SIMM9_MASK) << SIMM9_SH;
 130 }
 131
 132 static inline u32 build_func(u32 arg)
 133 {
 134         WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n");
 135
 136         return arg & FUNC_MASK;
 137 }
 138
 139 static inline u32 build_set(u32 arg)
 140 {
 141         WARN(arg & ~SET_MASK, KERN_WARNING "Micro-assembler field overflow\n");
 142
 143         return arg & SET_MASK;
 144 }
 145
 146 static void build_insn(u32 **buf, enum opcode opc, ...);
 147
 148 #define I_u1u2u3(op)                                    \
 149 Ip_u1u2u3(op)                                           \
 150 {                                                       \
 151         build_insn(buf, insn##op, a, b, c);             \
 152 }                                                       \
 153 UASM_EXPORT_SYMBOL(uasm_i##op);
 154
 155 #define I_s3s1s2(op)                                    \
 156 Ip_s3s1s2(op)                                           \
 157 {                                                       \
 158         build_insn(buf, insn##op, b, c, a);             \
 159 }                                                       \
 160 UASM_EXPORT_SYMBOL(uasm_i##op);
 161
 162 #define I_u2u1u3(op)                                    \
 163 Ip_u2u1u3(op)                                           \
 164 {                                                       \
 165         build_insn(buf, insn##op, b, a, c);             \
 166 }                                                       \
 167 UASM_EXPORT_SYMBOL(uasm_i##op);
 168
 169 #define I_u3u2u1(op)                                    \
 170 Ip_u3u2u1(op)                                           \
 171 {                                                       \
 172         build_insn(buf, insn##op, c, b, a);             \
 173 }                                                       \
 174 UASM_EXPORT_SYMBOL(uasm_i##op);
 175
 176 #define I_u3u1u2(op)                                    \
 177 Ip_u3u1u2(op)                                           \
 178 {                                                       \
 179         build_insn(buf, insn##op, b, c, a);             \
 180 }                                                       \
 181 UASM_EXPORT_SYMBOL(uasm_i##op);
 182
 183 #define I_u1u2s3(op)                                    \
 184 Ip_u1u2s3(op)                                           \
 185 {                                                       \
 186         build_insn(buf, insn##op, a, b, c);             \
 187 }                                                       \
 188 UASM_EXPORT_SYMBOL(uasm_i##op);
 189
 190 #define I_u2s3u1(op)                                    \
 191 Ip_u2s3u1(op)                                           \
 192 {                                                       \
 193         build_insn(buf, insn##op, c, a, b);             \
 194 }                                                       \
 195 UASM_EXPORT_SYMBOL(uasm_i##op);
 196
 197 #define I_u2u1s3(op)                                    \
 198 Ip_u2u1s3(op)                                           \
 199 {                                                       \
 200         build_insn(buf, insn##op, b, a, c);             \
 201 }                                                       \
 202 UASM_EXPORT_SYMBOL(uasm_i##op);
 203
 204 #define I_u2u1msbu3(op)                                 \
 205 Ip_u2u1msbu3(op)                                        \
 206 {                                                       \
 207         build_insn(buf, insn##op, b, a, c+d-1, c);      \
 208 }                                                       \
 209 UASM_EXPORT_SYMBOL(uasm_i##op);
 210
 211 #define I_u2u1msb32u3(op)                               \
 212 Ip_u2u1msbu3(op)                                        \
 213 {                                                       \
 214         build_insn(buf, insn##op, b, a, c+d-33, c);     \
 215 }                                                       \
 216 UASM_EXPORT_SYMBOL(uasm_i##op);
 217
 218 #define I_u2u1msbdu3(op)                                \
 219 Ip_u2u1msbu3(op)                                        \
 220 {                                                       \
 221         build_insn(buf, insn##op, b, a, d-1, c);        \
 222 }                                                       \
 223 UASM_EXPORT_SYMBOL(uasm_i##op);
 224
 225 #define I_u1u2(op)                                      \
 226 Ip_u1u2(op)                                             \
 227 {                                                       \
 228         build_insn(buf, insn##op, a, b);                \
 229 }                                                       \
 230 UASM_EXPORT_SYMBOL(uasm_i##op);
 231
 232 #define I_u2u1(op)                                      \
 233 Ip_u1u2(op)                                             \
 234 {                                                       \
 235         build_insn(buf, insn##op, b, a);                \
 236 }                                                       \
 237 UASM_EXPORT_SYMBOL(uasm_i##op);
 238
 239 #define I_u1s2(op)                                      \
 240 Ip_u1s2(op)                                             \
 241 {                                                       \
 242         build_insn(buf, insn##op, a, b);                \
 243 }                                                       \
 244 UASM_EXPORT_SYMBOL(uasm_i##op);
 245
 246 #define I_u1(op)                                        \
 247 Ip_u1(op)                                               \
 248 {                                                       \
 249         build_insn(buf, insn##op, a);                   \
 250 }                                                       \
 251 UASM_EXPORT_SYMBOL(uasm_i##op);
 252
 253 #define I_0(op)                                         \
 254 Ip_0(op)                                                \
 255 {                                                       \
 256         build_insn(buf, insn##op);                      \
 257 }                                                       \
 258 UASM_EXPORT_SYMBOL(uasm_i##op);
 259
 260 I_u2u1s3(_addiu)
 261 I_u3u1u2(_addu)
 262 I_u2u1u3(_andi)
 263 I_u3u1u2(_and)
 264 I_u1u2s3(_beq)
 265 I_u1u2s3(_beql)
 266 I_u1s2(_bgez)
 267 I_u1s2(_bgezl)
 268 I_u1s2(_bltz)
 269 I_u1s2(_bltzl)
 270 I_u1u2s3(_bne)
 271 I_u2s3u1(_cache)
 272 I_u1u2(_cfc1)
 273 I_u2u1(_cfcmsa)
 274 I_u1u2(_ctc1)
 275 I_u2u1(_ctcmsa)
 276 I_u1u2u3(_dmfc0)
 277 I_u1u2u3(_dmtc0)
 278 I_u2u1s3(_daddiu)
 279 I_u3u1u2(_daddu)
 280 I_u1(_di);
 281 I_u1u2(_divu)
 282 I_u2u1u3(_dsll)
 283 I_u2u1u3(_dsll32)
 284 I_u2u1u3(_dsra)
 285 I_u2u1u3(_dsrl)
 286 I_u2u1u3(_dsrl32)
 287 I_u2u1u3(_drotr)
 288 I_u2u1u3(_drotr32)
 289 I_u3u1u2(_dsubu)
 290 I_0(_eret)
 291 I_u2u1msbdu3(_ext)
 292 I_u2u1msbu3(_ins)
 293 I_u1(_j)
 294 I_u1(_jal)
 295 I_u2u1(_jalr)
 296 I_u1(_jr)
 297 I_u2s3u1(_lb)
 298 I_u2s3u1(_ld)
 299 I_u2s3u1(_lh)
 300 I_u2s3u1(_lhu)
 301 I_u2s3u1(_ll)
 302 I_u2s3u1(_lld)
 303 I_u1s2(_lui)
 304 I_u2s3u1(_lw)
 305 I_u1u2u3(_mfc0)
 306 I_u1u2u3(_mfhc0)
 307 I_u1(_mfhi)
 308 I_u1(_mflo)
 309 I_u1u2u3(_mtc0)
 310 I_u1u2u3(_mthc0)
 311 I_u1(_mthi)
 312 I_u1(_mtlo)
 313 I_u3u1u2(_mul)
 314 I_u2u1u3(_ori)
 315 I_u3u1u2(_or)
 316 I_0(_rfe)
 317 I_u2s3u1(_sc)
 318 I_u2s3u1(_scd)
 319 I_u2s3u1(_sd)
 320 I_u2u1u3(_sll)
 321 I_u3u2u1(_sllv)
 322 I_s3s1s2(_slt)
 323 I_u2u1s3(_sltiu)
 324 I_u3u1u2(_sltu)
 325 I_u2u1u3(_sra)
 326 I_u2u1u3(_srl)
 327 I_u3u2u1(_srlv)
 328 I_u2u1u3(_rotr)
 329 I_u3u1u2(_subu)
 330 I_u2s3u1(_sw)
 331 I_u1(_sync)
 332 I_0(_tlbp)
 333 I_0(_tlbr)
 334 I_0(_tlbwi)
 335 I_0(_tlbwr)
 336 I_u1(_wait);
 337 I_u2u1(_wsbh)
 338 I_u3u1u2(_xor)
 339 I_u2u1u3(_xori)
 340 I_u2u1(_yield)
 341 I_u2u1msbu3(_dins);
 342 I_u2u1msb32u3(_dinsm);
 343 I_u1(_syscall);
 344 I_u1u2s3(_bbit0);
 345 I_u1u2s3(_bbit1);
 346 I_u3u1u2(_lwx)
 347 I_u3u1u2(_ldx)
 348 I_u1u2(_ldpte)
 349 I_u2u1u3(_lddir)
 350
 351 #ifdef CONFIG_CPU_CAVIUM_OCTEON
 352 #include <asm/octeon/octeon.h>
 353 void uasm_i_pref(u32 **buf, unsigned int a, signed int b,
 354                             unsigned int c)
 355 {
 356         if (CAVIUM_OCTEON_DCACHE_PREFETCH_WAR && a <= 24 && a != 5)
 357                 /*
 358                  * As per erratum Core-14449, replace prefetches 0-4,
 359                  * 6-24 with 'pref 28'.
 360                  */
 361                 build_insn(buf, insn_pref, c, 28, b);
 362         else
 363                 build_insn(buf, insn_pref, c, a, b);
 364 }
 365 UASM_EXPORT_SYMBOL(uasm_i_pref);
 366 #else
 367 I_u2s3u1(_pref)
 368 #endif
 369
 370 /* Handle labels. */
 371 void uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
 372 {
 373         (*lab)->addr = addr;
 374         (*lab)->lab = lid;
 375         (*lab)++;
 376 }
 377 UASM_EXPORT_SYMBOL(uasm_build_label);
 378
 379 int uasm_in_compat_space_p(long addr)
 380 {
 381         /* Is this address in 32bit compat space? */
 382         return addr == (int)addr;
 383 }
 384 UASM_EXPORT_SYMBOL(uasm_in_compat_space_p);
 385
 386 static int uasm_rel_highest(long val)
 387 {
 388 #ifdef CONFIG_64BIT
 389         return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
 390 #else
 391         return 0;
 392 #endif
 393 }
 394
 395 static int uasm_rel_higher(long val)
 396 {
 397 #ifdef CONFIG_64BIT
 398         return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
 399 #else
 400         return 0;
 401 #endif
 402 }
 403
 404 int uasm_rel_hi(long val)
 405 {
 406         return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
 407 }
 408 UASM_EXPORT_SYMBOL(uasm_rel_hi);
 409
 410 int uasm_rel_lo(long val)
 411 {
 412         return ((val & 0xffff) ^ 0x8000) - 0x8000;
 413 }
 414 UASM_EXPORT_SYMBOL(uasm_rel_lo);
 415
 416 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr)
 417 {
 418         if (!uasm_in_compat_space_p(addr)) {
 419                 uasm_i_lui(buf, rs, uasm_rel_highest(addr));
 420                 if (uasm_rel_higher(addr))
 421                         uasm_i_daddiu(buf, rs, rs, uasm_rel_higher(addr));
 422                 if (uasm_rel_hi(addr)) {
 423                         uasm_i_dsll(buf, rs, rs, 16);
 424                         uasm_i_daddiu(buf, rs, rs,
 425                                         uasm_rel_hi(addr));
 426                         uasm_i_dsll(buf, rs, rs, 16);
 427                 } else
 428                         uasm_i_dsll32(buf, rs, rs, 0);
 429         } else
 430                 uasm_i_lui(buf, rs, uasm_rel_hi(addr));
 431 }
 432 UASM_EXPORT_SYMBOL(UASM_i_LA_mostly);
 433
 434 void UASM_i_LA(u32 **buf, unsigned int rs, long addr)
 435 {
 436         UASM_i_LA_mostly(buf, rs, addr);
 437         if (uasm_rel_lo(addr)) {
 438                 if (!uasm_in_compat_space_p(addr))
 439                         uasm_i_daddiu(buf, rs, rs,
 440                                         uasm_rel_lo(addr));
 441                 else
 442                         uasm_i_addiu(buf, rs, rs,
 443                                         uasm_rel_lo(addr));
 444         }
 445 }
 446 UASM_EXPORT_SYMBOL(UASM_i_LA);
 447
 448 /* Handle relocations. */
 449 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid)
 450 {
 451         (*rel)->addr = addr;
 452         (*rel)->type = R_MIPS_PC16;
 453         (*rel)->lab = lid;
 454         (*rel)++;
 455 }
 456 UASM_EXPORT_SYMBOL(uasm_r_mips_pc16);
 457
 458 static inline void __resolve_relocs(struct uasm_reloc *rel,
 459                                     struct uasm_label *lab);
 460
 461 void uasm_resolve_relocs(struct uasm_reloc *rel,
 462                                   struct uasm_label *lab)
 463 {
 464         struct uasm_label *l;
 465
 466         for (; rel->lab != UASM_LABEL_INVALID; rel++)
 467                 for (l = lab; l->lab != UASM_LABEL_INVALID; l++)
 468                         if (rel->lab == l->lab)
 469                                 __resolve_relocs(rel, l);
 470 }
 471 UASM_EXPORT_SYMBOL(uasm_resolve_relocs);
 472
 473 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end,
 474                                long off)
 475 {
 476         for (; rel->lab != UASM_LABEL_INVALID; rel++)
 477                 if (rel->addr >= first && rel->addr < end)
 478                         rel->addr += off;
 479 }
 480 UASM_EXPORT_SYMBOL(uasm_move_relocs);
 481
 482 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end,
 483                                long off)
 484 {
 485         for (; lab->lab != UASM_LABEL_INVALID; lab++)
 486                 if (lab->addr >= first && lab->addr < end)
 487                         lab->addr += off;
 488 }
 489 UASM_EXPORT_SYMBOL(uasm_move_labels);
 490
 491 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
 492                                 u32 *first, u32 *end, u32 *target)
 493 {
 494         long off = (long)(target - first);
 495
 496         memcpy(target, first, (end - first) * sizeof(u32));
 497
 498         uasm_move_relocs(rel, first, end, off);
 499         uasm_move_labels(lab, first, end, off);
 500 }
 501 UASM_EXPORT_SYMBOL(uasm_copy_handler);
 502
 503 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr)
 504 {
 505         for (; rel->lab != UASM_LABEL_INVALID; rel++) {
 506                 if (rel->addr == addr
 507                     && (rel->type == R_MIPS_PC16
 508                         || rel->type == R_MIPS_26))
 509                         return 1;
 510         }
 511
 512         return 0;
 513 }
 514 UASM_EXPORT_SYMBOL(uasm_insn_has_bdelay);
 515
 516 /* Convenience functions for labeled branches. */
 517 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg,
 518                            int lid)
 519 {
 520         uasm_r_mips_pc16(r, *p, lid);
 521         uasm_i_bltz(p, reg, 0);
 522 }
 523 UASM_EXPORT_SYMBOL(uasm_il_bltz);
 524
 525 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid)
 526 {
 527         uasm_r_mips_pc16(r, *p, lid);
 528         uasm_i_b(p, 0);
 529 }
 530 UASM_EXPORT_SYMBOL(uasm_il_b);
 531
 532 void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1,
 533                           unsigned int r2, int lid)
 534 {
 535         uasm_r_mips_pc16(r, *p, lid);
 536         uasm_i_beq(p, r1, r2, 0);
 537 }
 538 UASM_EXPORT_SYMBOL(uasm_il_beq);
 539
 540 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg,
 541                            int lid)
 542 {
 543         uasm_r_mips_pc16(r, *p, lid);
 544         uasm_i_beqz(p, reg, 0);
 545 }
 546 UASM_EXPORT_SYMBOL(uasm_il_beqz);
 547
 548 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg,
 549                             int lid)
 550 {
 551         uasm_r_mips_pc16(r, *p, lid);
 552         uasm_i_beqzl(p, reg, 0);
 553 }
 554 UASM_EXPORT_SYMBOL(uasm_il_beqzl);
 555
 556 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
 557                           unsigned int reg2, int lid)
 558 {
 559         uasm_r_mips_pc16(r, *p, lid);
 560         uasm_i_bne(p, reg1, reg2, 0);
 561 }
 562 UASM_EXPORT_SYMBOL(uasm_il_bne);
 563
 564 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg,
 565                            int lid)
 566 {
 567         uasm_r_mips_pc16(r, *p, lid);
 568         uasm_i_bnez(p, reg, 0);
 569 }
 570 UASM_EXPORT_SYMBOL(uasm_il_bnez);
 571
 572 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg,
 573                             int lid)
 574 {
 575         uasm_r_mips_pc16(r, *p, lid);
 576         uasm_i_bgezl(p, reg, 0);
 577 }
 578 UASM_EXPORT_SYMBOL(uasm_il_bgezl);
 579
 580 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg,
 581                            int lid)
 582 {
 583         uasm_r_mips_pc16(r, *p, lid);
 584         uasm_i_bgez(p, reg, 0);
 585 }
 586 UASM_EXPORT_SYMBOL(uasm_il_bgez);
 587
 588 void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg,
 589                             unsigned int bit, int lid)
 590 {
 591         uasm_r_mips_pc16(r, *p, lid);
 592         uasm_i_bbit0(p, reg, bit, 0);
 593 }
 594 UASM_EXPORT_SYMBOL(uasm_il_bbit0);
 595
 596 void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg,
 597                             unsigned int bit, int lid)
 598 {
 599         uasm_r_mips_pc16(r, *p, lid);
 600         uasm_i_bbit1(p, reg, bit, 0);
 601 }
 602 UASM_EXPORT_SYMBOL(uasm_il_bbit1);