opcodes/h8300-dis.c

   1 /* Disassemble h8300 instructions.
   2    Copyright 1993, 1994, 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   3    2007  Free Software Foundation, Inc.
   4
   5    This file is part of the GNU opcodes library.
   6
   7    This library 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 3, or (at your option)
  10    any later version.
  11
  12    It is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #define DEFINE_TABLE
  23
  24 #include "sysdep.h"
  25 #define h8_opcodes h8ops
  26 #include "opcode/h8300.h"
  27 #include "dis-asm.h"
  28 #include "opintl.h"
  29 #include "libiberty.h"
  30
  31 struct h8_instruction
  32 {
  33   int length;
  34   const struct h8_opcode *opcode;
  35 };
  36
  37 struct h8_instruction *h8_instructions;
  38
  39 /* Run through the opcodes and sort them into order to make them easy
  40    to disassemble.  */
  41
  42 static void
  43 bfd_h8_disassemble_init (void)
  44 {
  45   unsigned int i;
  46   unsigned int nopcodes;
  47   const struct h8_opcode *p;
  48   struct h8_instruction *pi;
  49
  50   nopcodes = sizeof (h8_opcodes) / sizeof (struct h8_opcode);
  51
  52   h8_instructions = xmalloc (nopcodes * sizeof (struct h8_instruction));
  53
  54   for (p = h8_opcodes, pi = h8_instructions; p->name; p++, pi++)
  55     {
  56       int n1 = 0;
  57       int n2 = 0;
  58
  59       if ((int) p->data.nib[0] < 16)
  60         n1 = (int) p->data.nib[0];
  61       else
  62         n1 = 0;
  63
  64       if ((int) p->data.nib[1] < 16)
  65         n2 = (int) p->data.nib[1];
  66       else
  67         n2 = 0;
  68
  69       /* Just make sure there are an even number of nibbles in it, and
  70          that the count is the same as the length.  */
  71       for (i = 0; p->data.nib[i] != (op_type) E; i++)
  72         ;
  73
  74       if (i & 1)
  75         {
  76           fprintf (stderr, "Internal error, h8_disassemble_init.\n");
  77           abort ();
  78         }
  79
  80       pi->length = i / 2;
  81       pi->opcode = p;
  82     }
  83
  84   /* Add entry for the NULL vector terminator.  */
  85   pi->length = 0;
  86   pi->opcode = p;
  87 }
  88
  89 static void
  90 extract_immediate (FILE *stream,
  91                    op_type looking_for,
  92                    int thisnib,
  93                    unsigned char *data,
  94                    int *cst,
  95                    int *len,
  96                    const struct h8_opcode *q)
  97 {
  98   switch (looking_for & SIZE)
  99     {
 100     case L_2:
 101       *len = 2;
 102       *cst = thisnib & 3;
 103
 104       /* DISP2 special treatment.  */
 105       if ((looking_for & MODE) == DISP)
 106         {
 107           if (OP_KIND (q->how) == O_MOVAB
 108               || OP_KIND (q->how) == O_MOVAW
 109               || OP_KIND (q->how) == O_MOVAL)
 110             {
 111               /* Handling for mova insn.  */
 112               switch (q->args.nib[0] & MODE)
 113                 {
 114                 case INDEXB:
 115                 default:
 116                   break;
 117                 case INDEXW:
 118                   *cst *= 2;
 119                   break;
 120                 case INDEXL:
 121                   *cst *= 4;
 122                   break;
 123                 }
 124             }
 125           else
 126             {
 127               /* Handling for non-mova insn.  */
 128               switch (OP_SIZE (q->how))
 129                 {
 130                 default: break;
 131                 case SW:
 132                   *cst *= 2;
 133                   break;
 134                 case SL:
 135                   *cst *= 4;
 136                   break;
 137                 }
 138             }
 139         }
 140       break;
 141     case L_8:
 142       *len = 8;
 143       *cst = data[0];
 144       break;
 145     case L_16:
 146     case L_16U:
 147       *len = 16;
 148       *cst = (data[0] << 8) + data [1];
 149 #if 0
 150       if ((looking_for & SIZE) == L_16)
 151         *cst = (short) *cst;    /* Sign extend.  */
 152 #endif
 153       break;
 154     case L_32:
 155       *len = 32;
 156       *cst = (data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3];
 157       break;
 158     default:
 159       *len = 0;
 160       *cst = 0;
 161       fprintf (stream, "DISP bad size\n");
 162       break;
 163     }
 164 }
 165
 166 static const char *regnames[] =
 167 {
 168   "r0h", "r1h", "r2h", "r3h", "r4h", "r5h", "r6h", "r7h",
 169   "r0l", "r1l", "r2l", "r3l", "r4l", "r5l", "r6l", "r7l"
 170 };
 171 static const char *wregnames[] =
 172 {
 173   "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
 174   "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7"
 175 };
 176 static const char *lregnames[] =
 177 {
 178   "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7",
 179   "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7"
 180 };
 181 static const char *cregnames[] =
 182 {
 183   "ccr", "exr", "mach", "macl", "", "", "vbr", "sbr"
 184 };
 185
 186 static void
 187 print_one_arg (disassemble_info *info,
 188                bfd_vma addr,
 189                op_type x,
 190                int cst,
 191                int cstlen,
 192                int rdisp_n,
 193                int rn,
 194                const char **pregnames,
 195                int len)
 196 {
 197   void * stream = info->stream;
 198   fprintf_ftype outfn = info->fprintf_func;
 199
 200   if ((x & SIZE) == L_3 || (x & SIZE) == L_3NZ)
 201     outfn (stream, "#0x%x", (unsigned) cst);
 202   else if ((x & MODE) == IMM)
 203     outfn (stream, "#0x%x", (unsigned) cst);
 204   else if ((x & MODE) == DBIT || (x & MODE) == KBIT)
 205     outfn (stream, "#%d", (unsigned) cst);
 206   else if ((x & MODE) == CONST_2)
 207     outfn (stream, "#2");
 208   else if ((x & MODE) == CONST_4)
 209     outfn (stream, "#4");
 210   else if ((x & MODE) == CONST_8)
 211     outfn (stream, "#8");
 212   else if ((x & MODE) == CONST_16)
 213     outfn (stream, "#16");
 214   else if ((x & MODE) == REG)
 215     {
 216       switch (x & SIZE)
 217         {
 218         case L_8:
 219           outfn (stream, "%s", regnames[rn]);
 220           break;
 221         case L_16:
 222         case L_16U:
 223           outfn (stream, "%s", wregnames[rn]);
 224           break;
 225         case L_P:
 226         case L_32:
 227           outfn (stream, "%s", lregnames[rn]);
 228           break;
 229         }
 230     }
 231   else if ((x & MODE) == LOWREG)
 232     {
 233       switch (x & SIZE)
 234         {
 235         case L_8:
 236           /* Always take low half of reg.  */
 237           outfn (stream, "%s.b", regnames[rn < 8 ? rn + 8 : rn]);
 238           break;
 239         case L_16:
 240         case L_16U:
 241           /* Always take low half of reg.  */
 242           outfn (stream, "%s.w", wregnames[rn < 8 ? rn : rn - 8]);
 243           break;
 244         case L_P:
 245         case L_32:
 246           outfn (stream, "%s.l", lregnames[rn]);
 247           break;
 248         }
 249     }
 250   else if ((x & MODE) == POSTINC)
 251     outfn (stream, "@%s+", pregnames[rn]);
 252
 253   else if ((x & MODE) == POSTDEC)
 254     outfn (stream, "@%s-", pregnames[rn]);
 255
 256   else if ((x & MODE) == PREINC)
 257     outfn (stream, "@+%s", pregnames[rn]);
 258
 259   else if ((x & MODE) == PREDEC)
 260     outfn (stream, "@-%s", pregnames[rn]);
 261
 262   else if ((x & MODE) == IND)
 263     outfn (stream, "@%s", pregnames[rn]);
 264
 265   else if ((x & MODE) == ABS || (x & ABSJMP))
 266     outfn (stream, "@0x%x:%d", (unsigned) cst, cstlen);
 267
 268   else if ((x & MODE) == MEMIND)
 269     outfn (stream, "@@%d (0x%x)", cst, cst);
 270
 271   else if ((x & MODE) == VECIND)
 272     {
 273       /* FIXME Multiplier should be 2 or 4, depending on processor mode,
 274          by which is meant "normal" vs. "middle", "advanced", "maximum".  */
 275
 276       int offset = (cst + 0x80) * 4;
 277       outfn (stream, "@@%d (0x%x)", offset, offset);
 278     }
 279   else if ((x & MODE) == PCREL)
 280     {
 281       if ((x & SIZE) == L_16 ||
 282           (x & SIZE) == L_16U)
 283         {
 284           outfn (stream, ".%s%d (0x%lx)",
 285                    (short) cst > 0 ? "+" : "",
 286                    (short) cst,
 287                    (long)(addr + (short) cst + len));
 288         }
 289       else
 290         {
 291           outfn (stream, ".%s%d (0x%lx)",
 292                    (char) cst > 0 ? "+" : "",
 293                    (char) cst,
 294                    (long)(addr + (char) cst + len));
 295         }
 296     }
 297   else if ((x & MODE) == DISP)
 298     outfn (stream, "@(0x%x:%d,%s)", cst, cstlen, pregnames[rdisp_n]);
 299
 300   else if ((x & MODE) == INDEXB)
 301     /* Always take low half of reg.  */
 302     outfn (stream, "@(0x%x:%d,%s.b)", cst, cstlen,
 303            regnames[rdisp_n < 8 ? rdisp_n + 8 : rdisp_n]);
 304
 305   else if ((x & MODE) == INDEXW)
 306     /* Always take low half of reg.  */
 307     outfn (stream, "@(0x%x:%d,%s.w)", cst, cstlen,
 308            wregnames[rdisp_n < 8 ? rdisp_n : rdisp_n - 8]);
 309
 310   else if ((x & MODE) == INDEXL)
 311     outfn (stream, "@(0x%x:%d,%s.l)", cst, cstlen, lregnames[rdisp_n]);
 312
 313   else if (x & CTRL)
 314     outfn (stream, cregnames[rn]);
 315
 316   else if ((x & MODE) == CCR)
 317     outfn (stream, "ccr");
 318
 319   else if ((x & MODE) == EXR)
 320     outfn (stream, "exr");
 321
 322   else if ((x & MODE) == MACREG)
 323     outfn (stream, "mac%c", cst ? 'l' : 'h');
 324
 325   else
 326     /* xgettext:c-format */
 327     outfn (stream, _("Hmmmm 0x%x"), x);
 328 }
 329
 330 static unsigned int
 331 bfd_h8_disassemble (bfd_vma addr, disassemble_info *info, int mach)
 332 {
 333   /* Find the first entry in the table for this opcode.  */
 334   int regno[3] = { 0, 0, 0 };
 335   int dispregno[3] = { 0, 0, 0 };
 336   int cst[3] = { 0, 0, 0 };
 337   int cstlen[3] = { 0, 0, 0 };
 338   static bfd_boolean init = 0;
 339   const struct h8_instruction *qi;
 340   char const **pregnames = mach != 0 ? lregnames : wregnames;
 341   int status;
 342   unsigned int l;
 343   unsigned char data[MAX_CODE_NIBBLES];
 344   void *stream = info->stream;
 345   fprintf_ftype outfn = info->fprintf_func;
 346
 347   if (!init)
 348     {
 349       bfd_h8_disassemble_init ();
 350       init = 1;
 351     }
 352
 353   status = info->read_memory_func (addr, data, 2, info);
 354   if (status != 0)
 355     {
 356       info->memory_error_func (status, addr, info);
 357       return -1;
 358     }
 359
 360   for (l = 2; status == 0 && l < sizeof (data) / 2; l += 2)
 361     status = info->read_memory_func (addr + l, data + l, 2, info);
 362
 363   /* Find the exact opcode/arg combo.  */
 364   for (qi = h8_instructions; qi->opcode->name; qi++)
 365     {
 366       const struct h8_opcode *q = qi->opcode;
 367       const op_type *nib = q->data.nib;
 368       unsigned int len = 0;
 369
 370       while (1)
 371         {
 372           op_type looking_for = *nib;
 373           int thisnib = data[len / 2];
 374           int opnr;
 375
 376           thisnib = (len & 1) ? (thisnib & 0xf) : ((thisnib / 16) & 0xf);
 377           opnr = ((looking_for & OP3) == OP3 ? 2
 378                   : (looking_for & DST) == DST ? 1 : 0);
 379
 380           if (looking_for < 16 && looking_for >= 0)
 381             {
 382               if (looking_for != thisnib)
 383                 goto fail;
 384             }
 385           else
 386             {
 387               if ((int) looking_for & (int) B31)
 388                 {
 389                   if (!((thisnib & 0x8) != 0))
 390                     goto fail;
 391
 392                   looking_for = (op_type) ((int) looking_for & ~(int) B31);
 393                   thisnib &= 0x7;
 394                 }
 395               else if ((int) looking_for & (int) B30)
 396                 {
 397                   if (!((thisnib & 0x8) == 0))
 398                     goto fail;
 399
 400                   looking_for = (op_type) ((int) looking_for & ~(int) B30);
 401                 }
 402
 403               if ((int) looking_for & (int) B21)
 404                 {
 405                   if (!((thisnib & 0x4) != 0))
 406                     goto fail;
 407
 408                   looking_for = (op_type) ((int) looking_for & ~(int) B21);
 409                   thisnib &= 0xb;
 410                 }
 411               else if ((int) looking_for & (int) B20)
 412                 {
 413                   if (!((thisnib & 0x4) == 0))
 414                     goto fail;
 415
 416                   looking_for = (op_type) ((int) looking_for & ~(int) B20);
 417                 }
 418               if ((int) looking_for & (int) B11)
 419                 {
 420                   if (!((thisnib & 0x2) != 0))
 421                     goto fail;
 422
 423                   looking_for = (op_type) ((int) looking_for & ~(int) B11);
 424                   thisnib &= 0xd;
 425                 }
 426               else if ((int) looking_for & (int) B10)
 427                 {
 428                   if (!((thisnib & 0x2) == 0))
 429                     goto fail;
 430
 431                   looking_for = (op_type) ((int) looking_for & ~(int) B10);
 432                 }
 433
 434               if ((int) looking_for & (int) B01)
 435                 {
 436                   if (!((thisnib & 0x1) != 0))
 437                     goto fail;
 438
 439                   looking_for = (op_type) ((int) looking_for & ~(int) B01);
 440                   thisnib &= 0xe;
 441                 }
 442               else if ((int) looking_for & (int) B00)
 443                 {
 444                   if (!((thisnib & 0x1) == 0))
 445                     goto fail;
 446
 447                   looking_for = (op_type) ((int) looking_for & ~(int) B00);
 448                 }
 449
 450               if (looking_for & IGNORE)
 451                 {
 452                   /* Hitachi has declared that IGNORE must be zero.  */
 453                   if (thisnib != 0)
 454                     goto fail;
 455                 }
 456               else if ((looking_for & MODE) == DATA)
 457                 {
 458                   ;                     /* Skip embedded data.  */
 459                 }
 460               else if ((looking_for & MODE) == DBIT)
 461                 {
 462                   /* Exclude adds/subs by looking at bit 0 and 2, and
 463                      make sure the operand size, either w or l,
 464                      matches by looking at bit 1.  */
 465                   if ((looking_for & 7) != (thisnib & 7))
 466                     goto fail;
 467
 468                   cst[opnr] = (thisnib & 0x8) ? 2 : 1;
 469                 }
 470               else if ((looking_for & MODE) == DISP
 471                        || (looking_for & MODE) == ABS
 472                        || (looking_for & MODE) == PCREL
 473                        || (looking_for & MODE) == INDEXB
 474                        || (looking_for & MODE) == INDEXW
 475                        || (looking_for & MODE) == INDEXL)
 476                 {
 477                   extract_immediate (stream, looking_for, thisnib,
 478                                      data + len / 2, cst + opnr,
 479                                      cstlen + opnr, q);
 480                   /* Even address == bra, odd == bra/s.  */
 481                   if (q->how == O (O_BRAS, SB))
 482                     cst[opnr] -= 1;
 483                 }
 484               else if ((looking_for & MODE) == REG
 485                        || (looking_for & MODE) == LOWREG
 486                        || (looking_for & MODE) == IND
 487                        || (looking_for & MODE) == PREINC
 488                        || (looking_for & MODE) == POSTINC
 489                        || (looking_for & MODE) == PREDEC
 490                        || (looking_for & MODE) == POSTDEC)
 491                 {
 492                   regno[opnr] = thisnib;
 493                 }
 494               else if (looking_for & CTRL)      /* Control Register.  */
 495                 {
 496                   thisnib &= 7;
 497                   if (((looking_for & MODE) == CCR  && (thisnib != C_CCR))
 498                       || ((looking_for & MODE) == EXR  && (thisnib != C_EXR))
 499                       || ((looking_for & MODE) == MACH && (thisnib != C_MACH))
 500                       || ((looking_for & MODE) == MACL && (thisnib != C_MACL))
 501                       || ((looking_for & MODE) == VBR  && (thisnib != C_VBR))
 502                       || ((looking_for & MODE) == SBR  && (thisnib != C_SBR)))
 503                     goto fail;
 504                   if (((looking_for & MODE) == CCR_EXR
 505                        && (thisnib != C_CCR && thisnib != C_EXR))
 506                       || ((looking_for & MODE) == VBR_SBR
 507                           && (thisnib != C_VBR && thisnib != C_SBR))
 508                       || ((looking_for & MODE) == MACREG
 509                           && (thisnib != C_MACH && thisnib != C_MACL)))
 510                     goto fail;
 511                   if (((looking_for & MODE) == CC_EX_VB_SB
 512                        && (thisnib != C_CCR && thisnib != C_EXR
 513                            && thisnib != C_VBR && thisnib != C_SBR)))
 514                     goto fail;
 515
 516                   regno[opnr] = thisnib;
 517                 }
 518               else if ((looking_for & SIZE) == L_5)
 519                 {
 520                   cst[opnr] = data[len / 2] & 31;
 521                   cstlen[opnr] = 5;
 522                 }
 523               else if ((looking_for & SIZE) == L_4)
 524                 {
 525                   cst[opnr] = thisnib;
 526                   cstlen[opnr] = 4;
 527                 }
 528               else if ((looking_for & SIZE) == L_16
 529                        || (looking_for & SIZE) == L_16U)
 530                 {
 531                   cst[opnr] = (data[len / 2]) * 256 + data[(len + 2) / 2];
 532                   cstlen[opnr] = 16;
 533                 }
 534               else if ((looking_for & MODE) == MEMIND)
 535                 {
 536                   cst[opnr] = data[1];
 537                 }
 538               else if ((looking_for & MODE) == VECIND)
 539                 {
 540                   cst[opnr] = data[1] & 0x7f;
 541                 }
 542               else if ((looking_for & SIZE) == L_32)
 543                 {
 544                   int i = len / 2;
 545
 546                   cst[opnr] = ((data[i] << 24)
 547                                | (data[i + 1] << 16)
 548                                | (data[i + 2] << 8)
 549                                | (data[i + 3]));
 550
 551                   cstlen[opnr] = 32;
 552                 }
 553               else if ((looking_for & SIZE) == L_24)
 554                 {
 555                   int i = len / 2;
 556
 557                   cst[opnr] =
 558                     (data[i] << 16) | (data[i + 1] << 8) | (data[i + 2]);
 559                   cstlen[opnr] = 24;
 560                 }
 561               else if (looking_for & IGNORE)
 562                 {
 563                   ;
 564                 }
 565               else if (looking_for & DISPREG)
 566                 {
 567                   dispregno[opnr] = thisnib & 7;
 568                 }
 569               else if ((looking_for & MODE) == KBIT)
 570                 {
 571                   switch (thisnib)
 572                     {
 573                     case 9:
 574                       cst[opnr] = 4;
 575                       break;
 576                     case 8:
 577                       cst[opnr] = 2;
 578                       break;
 579                     case 0:
 580                       cst[opnr] = 1;
 581                       break;
 582                     default:
 583                       goto fail;
 584                     }
 585                 }
 586               else if ((looking_for & SIZE) == L_8)
 587                 {
 588                   cstlen[opnr] = 8;
 589                   cst[opnr] = data[len / 2];
 590                 }
 591               else if ((looking_for & SIZE) == L_3
 592                        || (looking_for & SIZE) == L_3NZ)
 593                 {
 594                   cst[opnr] = thisnib & 0x7;
 595                   if (cst[opnr] == 0 && (looking_for & SIZE) == L_3NZ)
 596                     goto fail;
 597                 }
 598               else if ((looking_for & SIZE) == L_2)
 599                 {
 600                   cstlen[opnr] = 2;
 601                   cst[opnr] = thisnib & 0x3;
 602                 }
 603               else if ((looking_for & MODE) == MACREG)
 604                 {
 605                   cst[opnr] = (thisnib == 3);
 606                 }
 607               else if (looking_for == (op_type) E)
 608                 {
 609                   outfn (stream, "%s\t", q->name);
 610
 611                   /* Gross.  Disgusting.  */
 612                   if (strcmp (q->name, "ldm.l") == 0)
 613                     {
 614                       int count, high;
 615
 616                       count = (data[1] / 16) & 0x3;
 617                       high = regno[1];
 618
 619                       outfn (stream, "@sp+,er%d-er%d", high - count, high);
 620                       return qi->length;
 621                     }
 622
 623                   if (strcmp (q->name, "stm.l") == 0)
 624                     {
 625                       int count, low;
 626
 627                       count = (data[1] / 16) & 0x3;
 628                       low = regno[0];
 629
 630                       outfn (stream, "er%d-er%d,@-sp", low, low + count);
 631                       return qi->length;
 632                     }
 633                   if (strcmp (q->name, "rte/l") == 0
 634                       || strcmp (q->name, "rts/l") == 0)
 635                     {
 636                       if (regno[0] == 0)
 637                         outfn (stream, "er%d", regno[1]);
 638                       else
 639                         outfn (stream, "er%d-er%d", regno[1] - regno[0],
 640                                regno[1]);
 641                       return qi->length;
 642                     }
 643                   if (CONST_STRNEQ (q->name, "mova"))
 644                     {
 645                       const op_type *args = q->args.nib;
 646
 647                       if (args[1] == (op_type) E)
 648                         {
 649                           /* Short form.  */
 650                           print_one_arg (info, addr, args[0], cst[0],
 651                                          cstlen[0], dispregno[0], regno[0],
 652                                          pregnames, qi->length);
 653                           outfn (stream, ",er%d", dispregno[0]);
 654                         }
 655                       else
 656                         {
 657                           outfn (stream, "@(0x%x:%d,", cst[0], cstlen[0]);
 658                           print_one_arg (info, addr, args[1], cst[1],
 659                                          cstlen[1], dispregno[1], regno[1],
 660                                          pregnames, qi->length);
 661                           outfn (stream, ".%c),",
 662                                  (args[0] & MODE) == INDEXB ? 'b' : 'w');
 663                           print_one_arg (info, addr, args[2], cst[2],
 664                                          cstlen[2], dispregno[2], regno[2],
 665                                          pregnames, qi->length);
 666                         }
 667                       return qi->length;
 668                     }
 669                   /* Fill in the args.  */
 670                   {
 671                     const op_type *args = q->args.nib;
 672                     int hadone = 0;
 673                     int nargs;
 674
 675                     /* Special case handling for the adds and subs instructions
 676                        since in H8 mode thay can only take the r0-r7 registers
 677                        but in other (higher) modes they can take the er0-er7
 678                        registers as well.  */
 679                     if (strcmp (qi->opcode->name, "adds") == 0
 680                         || strcmp (qi->opcode->name, "subs") == 0)
 681                       {
 682                         outfn (stream, "#%d,%s", cst[0], pregnames[regno[1] & 0x7]);
 683                         return qi->length;
 684                       }
 685
 686                     for (nargs = 0;
 687                          nargs < 3 && args[nargs] != (op_type) E;
 688                          nargs++)
 689                       {
 690                         int x = args[nargs];
 691
 692                         if (hadone)
 693                           outfn (stream, ",");
 694
 695                         print_one_arg (info, addr, x,
 696                                        cst[nargs], cstlen[nargs],
 697                                        dispregno[nargs], regno[nargs],
 698                                        pregnames, qi->length);
 699
 700                         hadone = 1;
 701                       }
 702                   }
 703
 704                   return qi->length;
 705                 }
 706               else
 707                 /* xgettext:c-format */
 708                 outfn (stream, _("Don't understand 0x%x \n"), looking_for);
 709             }
 710
 711           len++;
 712           nib++;
 713         }
 714
 715     fail:
 716       ;
 717     }
 718
 719   /* Fell off the end.  */
 720   outfn (stream, ".word\tH'%x,H'%x", data[0], data[1]);
 721   return 2;
 722 }
 723
 724 int
 725 print_insn_h8300 (bfd_vma addr, disassemble_info *info)
 726 {
 727   return bfd_h8_disassemble (addr, info, 0);
 728 }
 729
 730 int
 731 print_insn_h8300h (bfd_vma addr, disassemble_info *info)
 732 {
 733   return bfd_h8_disassemble (addr, info, 1);
 734 }
 735
 736 int
 737 print_insn_h8300s (bfd_vma addr, disassemble_info *info)
 738 {
 739   return bfd_h8_disassemble (addr, info, 2);
 740 }