gas/config/tc-v850.c

   1 /* tc-v850.c -- Assembler code for the NEC V850
   2
   3    Copyright (C) 1996 Free Software Foundation.
   4
   5    This file is part of GAS, the GNU Assembler.
   6
   7    GAS is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2, or (at your option)
  10    any later version.
  11
  12    GAS is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GAS; see the file COPYING.  If not, write to
  19    the Free Software Foundation, 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include <stdio.h>
  23 #include <ctype.h>
  24 #include "as.h"
  25 #include "subsegs.h"
  26 #include "opcode/v850.h"
  27 \f
  28 /* Structure to hold information about predefined registers.  */
  29 struct reg_name
  30 {
  31   const char *name;
  32   int value;
  33 };
  34
  35 /* Generic assembler global variables which must be defined by all targets. */
  36
  37 /* Characters which always start a comment. */
  38 const char comment_chars[] = "#";
  39
  40 /* Characters which start a comment at the beginning of a line.  */
  41 const char line_comment_chars[] = ";#";
  42
  43 /* Characters which may be used to separate multiple commands on a
  44    single line.  */
  45 const char line_separator_chars[] = ";";
  46
  47 /* Characters which are used to indicate an exponent in a floating
  48    point number.  */
  49 const char EXP_CHARS[] = "eE";
  50
  51 /* Characters which mean that a number is a floating point constant,
  52    as in 0d1.0.  */
  53 const char FLT_CHARS[] = "dD";
  54 \f
  55 /* local functions */
  56 static unsigned long v850_insert_operand
  57   PARAMS ((unsigned long insn, const struct v850_operand *operand,
  58            offsetT val, char *file, unsigned int line));
  59 static int reg_name_search PARAMS ((char *name, const struct reg_name *, int));
  60 static boolean register_name PARAMS ((expressionS *expressionP));
  61 static boolean system_register_name PARAMS ((expressionS *expressionP));
  62 static int postfix PARAMS ((char *p));
  63 static bfd_reloc_code_real_type get_reloc PARAMS ((struct v850_operand *op));
  64 static unsigned long build_insn PARAMS ((struct v850_opcode *opcode, expressionS *opers));
  65
  66
  67 /* fixups */
  68 #define MAX_INSN_FIXUPS (5)
  69 struct v850_fixup
  70 {
  71   expressionS exp;
  72   int opindex;
  73   bfd_reloc_code_real_type reloc;
  74 };
  75 struct v850_fixup fixups[MAX_INSN_FIXUPS];
  76 static int fc;
  77 \f
  78 const char *md_shortopts = "";
  79 struct option md_longopts[] = {
  80   {NULL, no_argument, NULL, 0}
  81 };
  82 size_t md_longopts_size = sizeof(md_longopts);
  83
  84 /* The target specific pseudo-ops which we support.  */
  85 const pseudo_typeS md_pseudo_table[] =
  86 {
  87   /*
  88   { "byte",     ppc_byte,       0 },
  89   { "long",     ppc_elf_cons,   4 },
  90   { "word",     ppc_elf_cons,   2 },
  91   { "short",    ppc_elf_cons,   2 },
  92   { "rdata",    ppc_elf_rdata,  0 },
  93   { "rodata",   ppc_elf_rdata,  0 },
  94   { "lcomm",    ppc_elf_lcomm,  0 },
  95   */
  96   { NULL,       NULL,           0 }
  97 };
  98
  99 /* Opcode hash table.  */
 100 static struct hash_control *v850_hash;
 101
 102 /* This table is sorted. Suitable for searching by a binary search. */
 103 static const struct reg_name pre_defined_registers[] =
 104 {
 105   { "ep", 30 },                 /* ep - element ptr */
 106   { "gp", 4 },                  /* gp - global ptr */
 107   { "lp", 31 },                 /* lp - link ptr */
 108   { "r0", 0 },
 109   { "r1", 1 },
 110   { "r10", 10 },
 111   { "r11", 11 },
 112   { "r12", 12 },
 113   { "r13", 13 },
 114   { "r14", 14 },
 115   { "r15", 15 },
 116   { "r16", 16 },
 117   { "r17", 17 },
 118   { "r18", 18 },
 119   { "r19", 19 },
 120   { "r2", 2 },
 121   { "r20", 20 },
 122   { "r21", 21 },
 123   { "r22", 22 },
 124   { "r23", 23 },
 125   { "r24", 24 },
 126   { "r25", 25 },
 127   { "r26", 26 },
 128   { "r27", 27 },
 129   { "r28", 28 },
 130   { "r29", 29 },
 131   { "r3", 3 },
 132   { "r30", 30 },
 133   { "r31", 31 },
 134   { "r4", 4 },
 135   { "r5", 5 },
 136   { "r6", 6 },
 137   { "r7", 7 },
 138   { "r8", 8 },
 139   { "r9", 9 },
 140   { "sp", 3 },                  /* sp - stack ptr */
 141   { "tp", 5 },                  /* tp - text ptr */
 142   { "zero", 0 },
 143 };
 144 #define REG_NAME_CNT    (sizeof(pre_defined_registers) / sizeof(struct reg_name))
 145
 146
 147 static const struct reg_name system_registers[] =
 148 {
 149   { "eipc", 0 },
 150   { "eipsw", 1 },
 151   { "fepc", 2 },
 152   { "fepsw", 3 },
 153   { "ecr", 4 },
 154   { "psw", 5 },
 155 };
 156 #define SYSREG_NAME_CNT (sizeof(system_registers) / sizeof(struct reg_name))
 157
 158 static const struct reg_name cc_names[] =
 159 {
 160   { "c", 0x1 },
 161   { "ge", 0xe },
 162   { "gt", 0xf },
 163   { "h", 0xb },
 164   { "l", 0x1 },
 165   { "le", 0x7 },
 166   { "lt", 0x6 },
 167   { "n", 0x4 },
 168   { "nc", 0x9 },
 169   { "nh", 0x3 },
 170   { "nl", 0x9 },
 171   { "ns", 0xc },
 172   { "nv", 0x8 },
 173   { "nz", 0xa },
 174   { "p",  0xc },
 175   { "s", 0x4 },
 176   { "sa", 0xd },
 177   { "t", 0x5 },
 178   { "v", 0x0 },
 179   { "z", 0x2 },
 180 };
 181
 182 /* reg_name_search does a binary search of the given register table
 183    to see if "name" is a valid regiter name.  Returns the register
 184    number from the array on success, or -1 on failure. */
 185
 186 static int
 187 reg_name_search (name, table, high)
 188      char *name;
 189      const struct reg_name *table;
 190      int high;
 191 {
 192   int middle, low;
 193   int cmp;
 194
 195   low = 0;
 196   do
 197     {
 198       middle = (low + high) / 2;
 199       cmp = strcasecmp (name, table[middle].name);
 200       if (cmp < 0)
 201         high = middle - 1;
 202       else if (cmp > 0)
 203         low = middle + 1;
 204       else
 205           return table[middle].value;
 206     }
 207   while (low <= high);
 208   return -1;
 209 }
 210
 211
 212 /* Summary of register_name().
 213  *
 214  * in: Input_line_pointer points to 1st char of operand.
 215  *
 216  * out: A expressionS.
 217  *      The operand may have been a register: in this case, X_op == O_register,
 218  *      X_add_number is set to the register number, and truth is returned.
 219  *      Input_line_pointer->(next non-blank) char after operand, or is in
 220  *      its original state.
 221  */
 222 static boolean
 223 register_name (expressionP)
 224      expressionS *expressionP;
 225 {
 226   int reg_number;
 227   char *name;
 228   char *start;
 229   char c;
 230
 231   /* Find the spelling of the operand */
 232   start = name = input_line_pointer;
 233
 234   c = get_symbol_end ();
 235   reg_number = reg_name_search (name, pre_defined_registers, REG_NAME_CNT - 1);
 236
 237   /* look to see if it's in the register table */
 238   if (reg_number >= 0)
 239     {
 240       expressionP->X_op = O_register;
 241       expressionP->X_add_number = reg_number;
 242
 243       /* make the rest nice */
 244       expressionP->X_add_symbol = NULL;
 245       expressionP->X_op_symbol = NULL;
 246       *input_line_pointer = c;  /* put back the delimiting char */
 247       return true;
 248     }
 249   else
 250     {
 251       /* reset the line as if we had not done anything */
 252       *input_line_pointer = c;   /* put back the delimiting char */
 253       input_line_pointer = start; /* reset input_line pointer */
 254       return false;
 255     }
 256 }
 257
 258 /* Summary of system_register_name().
 259  *
 260  * in: Input_line_pointer points to 1st char of operand.
 261  *
 262  * out: A expressionS.
 263  *      The operand may have been a register: in this case, X_op == O_register,
 264  *      X_add_number is set to the register number, and truth is returned.
 265  *      Input_line_pointer->(next non-blank) char after operand, or is in
 266  *      its original state.
 267  */
 268 static boolean
 269 system_register_name (expressionP)
 270      expressionS *expressionP;
 271 {
 272   int reg_number;
 273   char *name;
 274   char *start;
 275   char c;
 276
 277   /* Find the spelling of the operand */
 278   start = name = input_line_pointer;
 279
 280   c = get_symbol_end ();
 281   reg_number = reg_name_search (name, system_registers, SYSREG_NAME_CNT - 1);
 282
 283   /* look to see if it's in the register table */
 284   if (reg_number >= 0)
 285     {
 286       expressionP->X_op = O_register;
 287       expressionP->X_add_number = reg_number;
 288
 289       /* make the rest nice */
 290       expressionP->X_add_symbol = NULL;
 291       expressionP->X_op_symbol = NULL;
 292       *input_line_pointer = c;  /* put back the delimiting char */
 293       return true;
 294     }
 295   else
 296     {
 297       /* reset the line as if we had not done anything */
 298       *input_line_pointer = c;   /* put back the delimiting char */
 299       input_line_pointer = start; /* reset input_line pointer */
 300       return false;
 301     }
 302 }
 303
 304 void
 305 md_show_usage (stream)
 306   FILE *stream;
 307 {
 308   fprintf(stream, "V850 options:\n\
 309 none yet\n");
 310 }
 311
 312 int
 313 md_parse_option (c, arg)
 314      int c;
 315      char *arg;
 316 {
 317   return 0;
 318 }
 319
 320 symbolS *
 321 md_undefined_symbol (name)
 322   char *name;
 323 {
 324   return 0;
 325 }
 326
 327 char *
 328 md_atof (type, litp, sizep)
 329   int type;
 330   char *litp;
 331   int *sizep;
 332 {
 333   int prec;
 334   LITTLENUM_TYPE words[4];
 335   char *t;
 336   int i;
 337
 338   switch (type)
 339     {
 340     case 'f':
 341       prec = 2;
 342       break;
 343
 344     case 'd':
 345       prec = 4;
 346       break;
 347
 348     default:
 349       *sizep = 0;
 350       return "bad call to md_atof";
 351     }
 352
 353   t = atof_ieee (input_line_pointer, type, words);
 354   if (t)
 355     input_line_pointer = t;
 356
 357   *sizep = prec * 2;
 358
 359   for (i = prec - 1; i >= 0; i--)
 360     {
 361       md_number_to_chars (litp, (valueT) words[i], 2);
 362       litp += 2;
 363     }
 364
 365   return NULL;
 366 }
 367
 368
 369 void
 370 md_convert_frag (abfd, sec, fragP)
 371   bfd *abfd;
 372   asection *sec;
 373   fragS *fragP;
 374 {
 375   /* printf ("call to md_convert_frag \n"); */
 376   abort ();
 377 }
 378
 379 valueT
 380 md_section_align (seg, addr)
 381      asection *seg;
 382      valueT addr;
 383 {
 384   int align = bfd_get_section_alignment (stdoutput, seg);
 385   return ((addr + (1 << align) - 1) & (-1 << align));
 386 }
 387
 388 void
 389 md_begin ()
 390 {
 391   char *prev_name = "";
 392   register const struct v850_opcode *op;
 393   const struct v850_opcode *op_end;
 394
 395   v850_hash = hash_new();
 396
 397   /* Insert unique names into hash table.  The V850 instruction set
 398      has many identical opcode names that have different opcodes based
 399      on the operands.  This hash table then provides a quick index to
 400      the first opcode with a particular name in the opcode table.  */
 401
 402   op     = v850_opcodes;
 403   op_end = v850_opcodes + v850_num_opcodes;
 404
 405   for (; op < op_end; op++)
 406     {
 407       if (strcmp (prev_name, op->name))
 408         {
 409           prev_name = (char *) op->name;
 410           hash_insert (v850_hash, op->name, (char *) op);
 411         }
 412     }
 413 }
 414
 415
 416 static bfd_reloc_code_real_type
 417 get_reloc (op)
 418      struct v850_operand *op;
 419 {
 420   abort ();
 421 }
 422
 423
 424 void
 425 md_assemble (str)
 426      char *str;
 427 {
 428   char *s;
 429   struct v850_opcode *opcode;
 430   struct v850_opcode *next_opcode;
 431   const unsigned char *opindex_ptr;
 432   int next_opindex;
 433   unsigned long insn;
 434   char *f;
 435   int i;
 436   int numops;
 437   int match;
 438
 439   int numopts;
 440   expressionS myops[5];
 441
 442   /* Get the opcode.  */
 443   for (s = str; *s != '\0' && ! isspace (*s); s++)
 444     ;
 445   if (*s != '\0')
 446     *s++ = '\0';
 447
 448   /* find the first opcode with the proper name */
 449   opcode = (struct v850_opcode *)hash_find (v850_hash, str);
 450   if (opcode == NULL)
 451     {
 452       as_bad ("Unrecognized opcode: `%s'", str);
 453       return;
 454     }
 455
 456   str = s;
 457   while (isspace (*str))
 458     ++str;
 459
 460   input_line_pointer = str;
 461
 462   for(;;)
 463     {
 464       const char *errmsg = NULL;
 465
 466       fc = 0;
 467       match = 0;
 468       next_opindex = 0;
 469       for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
 470         {
 471           const struct v850_operand *operand;
 472           char *hold;
 473           expressionS ex;
 474           char endc;
 475
 476           if (next_opindex == 0)
 477             {
 478               operand = &v850_operands[*opindex_ptr];
 479             }
 480           else
 481             {
 482               operand = &v850_operands[next_opindex];
 483               next_opindex = 0;
 484             }
 485
 486           errmsg = NULL;
 487
 488           while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
 489             ++str;
 490
 491           /* Gather the operand. */
 492           hold = input_line_pointer;
 493           input_line_pointer = str;
 494
 495           if ((operand->flags & V850_OPERAND_REG) != 0)
 496             {
 497               if (!register_name(&ex))
 498                 {
 499                   errmsg = "invalid register name";
 500                   goto error;
 501                 }
 502             }
 503           else if ((operand->flags & V850_OPERAND_SRG) != 0)
 504             {
 505               if (!system_register_name(&ex))
 506                 {
 507                   errmsg = "invalid system register name";
 508                   goto error;
 509                 }
 510             }
 511           else if (strncmp(input_line_pointer, "lo(", 3) == 0)
 512             {
 513               input_line_pointer += 3;
 514               expression(&ex);
 515
 516               if (*input_line_pointer++ != ')')
 517                 {
 518                   errmsg = "syntax error: expected `)'";
 519                   goto error;
 520                 }
 521
 522               if (ex.X_op == O_constant)
 523                 ex.X_add_number &= 0xffff;
 524               else
 525                 {
 526                   if (fc > MAX_INSN_FIXUPS)
 527                     as_fatal ("too many fixups");
 528
 529                   fixups[fc].exp = ex;
 530                   fixups[fc].opindex = *opindex_ptr;
 531                   fixups[fc].reloc = BFD_RELOC_LO16;
 532                   fc++;
 533                 }
 534             }
 535           else if (strncmp(input_line_pointer, "hi(", 3) == 0)
 536             {
 537               input_line_pointer += 3;
 538               expression(&ex);
 539
 540               if (*input_line_pointer++ != ')')
 541                 {
 542                   errmsg = "syntax error: expected `)'";
 543                   goto error;
 544                 }
 545
 546               if (ex.X_op == O_constant)
 547                 ex.X_add_number = (ex.X_add_number >> 16) & 0xffff;
 548               else
 549                 {
 550                   if (fc > MAX_INSN_FIXUPS)
 551                     as_fatal ("too many fixups");
 552
 553                   fixups[fc].exp = ex;
 554                   fixups[fc].opindex = *opindex_ptr;
 555                   fixups[fc].reloc = BFD_RELOC_HI16;
 556                   fc++;
 557                 }
 558             }
 559           else if (register_name (&ex)
 560                    && (operand->flags & V850_OPERAND_REG) == 0)
 561             {
 562               errmsg = "syntax error: register not expected";
 563               goto error;
 564             }
 565           else if (system_register_name (&ex)
 566                    && (operand->flags & V850_OPERAND_SRG) == 0)
 567             {
 568               errmsg = "syntax error: system register not expected";
 569               goto error;
 570             }
 571           else
 572             {
 573                 expression(&ex);
 574             }
 575
 576           str = input_line_pointer;
 577           input_line_pointer = hold;
 578
 579           switch (ex.X_op)
 580             {
 581             case O_illegal:
 582               errmsg = "illegal operand";
 583               goto error;
 584             case O_absent:
 585               errmsg = "missing operand";
 586               goto error;
 587             case O_register:
 588               if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
 589                 {
 590                   errmsg = "invalid operand";
 591                   goto error;
 592                 }
 593
 594               insn = v850_insert_operand (insn, operand, ex.X_add_number,
 595                                           (char *) NULL, 0);
 596               break;
 597
 598             case O_constant:
 599               insn = v850_insert_operand (insn, operand, ex.X_add_number,
 600                                           (char *) NULL, 0);
 601               break;
 602
 603             default:
 604               /* We need to generate a fixup for this expression.  */
 605               if (fc >= MAX_INSN_FIXUPS)
 606                 as_fatal ("too many fixups");
 607               fixups[fc].exp = ex;
 608               fixups[fc].opindex = *opindex_ptr;
 609               fixups[fc].reloc = BFD_RELOC_UNUSED;
 610               ++fc;
 611               break;
 612             }
 613
 614           while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
 615             ++str;
 616         }
 617       match = 1;
 618
 619     error:
 620       if (match == 0)
 621         {
 622           next_opcode = opcode + 1;
 623           if (next_opcode->opcode != 0 && !strcmp(next_opcode->name, opcode->name))
 624             {
 625               opcode = next_opcode;
 626               continue;
 627             }
 628
 629           as_bad ("%s", errmsg);
 630           return;
 631         }
 632       break;
 633     }
 634
 635   while (isspace (*str))
 636     ++str;
 637
 638   if (*str != '\0')
 639     as_bad ("junk at end of line: `%s'", str);
 640
 641   input_line_pointer = str;
 642
 643   f = frag_more (opcode->size);
 644   md_number_to_chars (f, insn, opcode->size);
 645 }
 646
 647
 648 /* if while processing a fixup, a reloc really needs to be created */
 649 /* then it is done here */
 650
 651 arelent *
 652 tc_gen_reloc (seg, fixp)
 653      asection *seg;
 654      fixS *fixp;
 655 {
 656   arelent *reloc;
 657   reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent));
 658   reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
 659   reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
 660   reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
 661   if (reloc->howto == (reloc_howto_type *) NULL)
 662     {
 663       as_bad_where (fixp->fx_file, fixp->fx_line,
 664                     "reloc %d not supported by object file format", (int)fixp->fx_r_type);
 665       return NULL;
 666     }
 667   reloc->addend = fixp->fx_addnumber;
 668   /*  printf("tc_gen_reloc: addr=%x  addend=%x\n", reloc->address, reloc->addend); */
 669   return reloc;
 670 }
 671
 672 int
 673 md_estimate_size_before_relax (fragp, seg)
 674      fragS *fragp;
 675      asection *seg;
 676 {
 677   abort ();
 678   return 0;
 679 }
 680
 681 long
 682 md_pcrel_from_section (fixp, sec)
 683      fixS *fixp;
 684      segT sec;
 685 {
 686     return 0;
 687     /*  return fixp->fx_frag->fr_address + fixp->fx_where; */
 688 }
 689
 690 int
 691 md_apply_fix3 (fixp, valuep, seg)
 692      fixS *fixp;
 693      valueT *valuep;
 694      segT seg;
 695 {
 696   abort();
 697 #if 0
 698   valueT value;
 699   char *where;
 700   unsigned long insn;
 701   int op_type;
 702
 703   if (fixp->fx_addsy == (symbolS *) NULL)
 704     {
 705       value = *valuep;
 706       fixp->fx_done = 1;
 707     }
 708   else if (fixp->fx_pcrel)
 709     value = *valuep;
 710   else
 711     {
 712       value = fixp->fx_offset;
 713       if (fixp->fx_subsy != (symbolS *) NULL)
 714         {
 715           if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
 716             value -= S_GET_VALUE (fixp->fx_subsy);
 717           else
 718             {
 719               /* We don't actually support subtracting a symbol.  */
 720               as_bad_where (fixp->fx_file, fixp->fx_line,
 721                             "expression too complex");
 722             }
 723         }
 724     }
 725
 726   /*   printf("md_apply_fix: value=0x%x  type=%d\n",  value, fixp->fx_r_type); */
 727
 728   op_type = fixp->fx_r_type;
 729   fixp->fx_r_type = get_reloc((struct v850_operand *)&v850_operands[op_type]);
 730
 731   /*  printf("reloc=%d\n",fixp->fx_r_type); */
 732
 733   /* Fetch the instruction, insert the fully resolved operand
 734      value, and stuff the instruction back again.  */
 735   where = fixp->fx_frag->fr_literal + fixp->fx_where;
 736   insn = bfd_getb32 ((unsigned char *) where);
 737   /* printf("   insn=%x  value=%x\n",insn,value); */
 738
 739   insn = v850_insert_operand (insn, op_type, (offsetT) value);
 740
 741   /* printf("   new insn=%x\n",insn); */
 742
 743   bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
 744
 745   if (fixp->fx_done)
 746     return 1;
 747
 748   fixp->fx_addnumber = value;
 749   return 1;
 750 #endif
 751 }
 752
 753 \f
 754 /* Insert an operand value into an instruction.  */
 755
 756 static unsigned long
 757 v850_insert_operand (insn, operand, val, file, line)
 758      unsigned long insn;
 759      const struct v850_operand *operand;
 760      offsetT val;
 761      char *file;
 762      unsigned int line;
 763 {
 764   if (operand->bits != 32)
 765     {
 766       long min, max;
 767       offsetT test;
 768
 769       if ((operand->flags & V850_OPERAND_SIGNED) != 0)
 770         {
 771 #if 0
 772           if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0
 773               && ppc_size == PPC_OPCODE_32)
 774             max = (1 << operand->bits) - 1;
 775           else
 776 #endif
 777             max = (1 << (operand->bits - 1)) - 1;
 778           min = - (1 << (operand->bits - 1));
 779         }
 780       else
 781         {
 782           max = (1 << operand->bits) - 1;
 783           min = 0;
 784         }
 785
 786 #if 0
 787       if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
 788         test = - val;
 789       else
 790 #endif
 791         test = val;
 792
 793
 794       if (test < (offsetT) min || test > (offsetT) max)
 795         {
 796           const char *err =
 797             "operand out of range (%s not between %ld and %ld)";
 798           char buf[100];
 799
 800           sprint_value (buf, test);
 801           if (file == (char *) NULL)
 802             as_warn (err, buf, min, max);
 803           else
 804             as_warn_where (file, line, err, buf, min, max);
 805         }
 806     }
 807
 808   insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
 809   return insn;
 810 }