opcodes/m68hc11-dis.c

   1 /* m68hc11-dis.c -- Motorola 68HC11 & 68HC12 disassembly
   2    Copyright 1999, 2000, 2001, 2002, 2003, 2006, 2007
   3    Free Software Foundation, Inc.
   4    Written by Stephane Carrez (stcarrez@nerim.fr)
   5
   6    This file is part of the GNU opcodes library.
   7
   8    This library is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3, or (at your option)
  11    any later version.
  12
  13    It is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #include <stdio.h>
  24
  25 #include "ansidecl.h"
  26 #include "opcode/m68hc11.h"
  27 #include "dis-asm.h"
  28
  29 #define PC_REGNUM 3
  30
  31 static const char *const reg_name[] = {
  32   "X", "Y", "SP", "PC"
  33 };
  34
  35 static const char *const reg_src_table[] = {
  36   "A", "B", "CCR", "TMP3", "D", "X", "Y", "SP"
  37 };
  38
  39 static const char *const reg_dst_table[] = {
  40   "A", "B", "CCR", "TMP2", "D", "X", "Y", "SP"
  41 };
  42
  43 #define OP_PAGE_MASK (M6811_OP_PAGE2|M6811_OP_PAGE3|M6811_OP_PAGE4)
  44
  45 /* Prototypes for local functions.  */
  46 static int read_memory (bfd_vma, bfd_byte *, int, struct disassemble_info *);
  47 static int print_indexed_operand (bfd_vma, struct disassemble_info *,
  48                                   int*, int, int, bfd_vma);
  49 static int print_insn (bfd_vma, struct disassemble_info *, int);
  50
  51 static int
  52 read_memory (bfd_vma memaddr, bfd_byte* buffer, int size,
  53              struct disassemble_info* info)
  54 {
  55   int status;
  56
  57   /* Get first byte.  Only one at a time because we don't know the
  58      size of the insn.  */
  59   status = (*info->read_memory_func) (memaddr, buffer, size, info);
  60   if (status != 0)
  61     {
  62       (*info->memory_error_func) (status, memaddr, info);
  63       return -1;
  64     }
  65   return 0;
  66 }
  67
  68
  69 /* Read the 68HC12 indexed operand byte and print the corresponding mode.
  70    Returns the number of bytes read or -1 if failure.  */
  71 static int
  72 print_indexed_operand (bfd_vma memaddr, struct disassemble_info* info,
  73                        int* indirect, int mov_insn, int pc_offset,
  74                        bfd_vma endaddr)
  75 {
  76   bfd_byte buffer[4];
  77   int reg;
  78   int status;
  79   short sval;
  80   int pos = 1;
  81
  82   if (indirect)
  83     *indirect = 0;
  84
  85   status = read_memory (memaddr, &buffer[0], 1, info);
  86   if (status != 0)
  87     {
  88       return status;
  89     }
  90
  91   /* n,r with 5-bits signed constant.  */
  92   if ((buffer[0] & 0x20) == 0)
  93     {
  94       reg = (buffer[0] >> 6) & 3;
  95       sval = (buffer[0] & 0x1f);
  96       if (sval & 0x10)
  97         sval |= 0xfff0;
  98       /* 68HC12 requires an adjustment for movb/movw pc relative modes.  */
  99       if (reg == PC_REGNUM && info->mach == bfd_mach_m6812 && mov_insn)
 100         sval += pc_offset;
 101       (*info->fprintf_func) (info->stream, "%d,%s",
 102                              (int) sval, reg_name[reg]);
 103
 104       if (reg == PC_REGNUM)
 105         {
 106           (* info->fprintf_func) (info->stream, " {");
 107           (* info->print_address_func) (endaddr + sval, info);
 108           (* info->fprintf_func) (info->stream, "}");
 109         }
 110     }
 111
 112   /* Auto pre/post increment/decrement.  */
 113   else if ((buffer[0] & 0xc0) != 0xc0)
 114     {
 115       const char *mode;
 116
 117       reg = (buffer[0] >> 6) & 3;
 118       sval = (buffer[0] & 0x0f);
 119       if (sval & 0x8)
 120         {
 121           sval |= 0xfff0;
 122           sval = -sval;
 123           mode = "-";
 124         }
 125       else
 126         {
 127           sval = sval + 1;
 128           mode = "+";
 129         }
 130       (*info->fprintf_func) (info->stream, "%d,%s%s%s",
 131                              (int) sval,
 132                              (buffer[0] & 0x10 ? "" : mode),
 133                              reg_name[reg], (buffer[0] & 0x10 ? mode : ""));
 134     }
 135
 136   /* [n,r] 16-bits offset indexed indirect.  */
 137   else if ((buffer[0] & 0x07) == 3)
 138     {
 139       if (mov_insn)
 140         {
 141           (*info->fprintf_func) (info->stream, "<invalid op: 0x%x>",
 142                                  buffer[0] & 0x0ff);
 143           return 0;
 144         }
 145       reg = (buffer[0] >> 3) & 0x03;
 146       status = read_memory (memaddr + pos, &buffer[0], 2, info);
 147       if (status != 0)
 148         {
 149           return status;
 150         }
 151
 152       pos += 2;
 153       sval = ((buffer[0] << 8) | (buffer[1] & 0x0FF));
 154       (*info->fprintf_func) (info->stream, "[%u,%s]",
 155                              sval & 0x0ffff, reg_name[reg]);
 156       if (indirect)
 157         *indirect = 1;
 158     }
 159
 160   /* n,r with 9 and 16 bit signed constant.  */
 161   else if ((buffer[0] & 0x4) == 0)
 162     {
 163       if (mov_insn)
 164         {
 165           (*info->fprintf_func) (info->stream, "<invalid op: 0x%x>",
 166                                  buffer[0] & 0x0ff);
 167           return 0;
 168         }
 169       reg = (buffer[0] >> 3) & 0x03;
 170       status = read_memory (memaddr + pos,
 171                             &buffer[1], (buffer[0] & 0x2 ? 2 : 1), info);
 172       if (status != 0)
 173         {
 174           return status;
 175         }
 176       if (buffer[0] & 2)
 177         {
 178           sval = ((buffer[1] << 8) | (buffer[2] & 0x0FF));
 179           sval &= 0x0FFFF;
 180           pos += 2;
 181           endaddr += 2;
 182         }
 183       else
 184         {
 185           sval = buffer[1] & 0x00ff;
 186           if (buffer[0] & 0x01)
 187             sval |= 0xff00;
 188           pos++;
 189           endaddr++;
 190         }
 191       (*info->fprintf_func) (info->stream, "%d,%s",
 192                              (int) sval, reg_name[reg]);
 193       if (reg == PC_REGNUM)
 194         {
 195           (* info->fprintf_func) (info->stream, " {");
 196           (* info->print_address_func) (endaddr + sval, info);
 197           (* info->fprintf_func) (info->stream, "}");
 198         }
 199     }
 200   else
 201     {
 202       reg = (buffer[0] >> 3) & 0x03;
 203       switch (buffer[0] & 3)
 204         {
 205         case 0:
 206           (*info->fprintf_func) (info->stream, "A,%s", reg_name[reg]);
 207           break;
 208         case 1:
 209           (*info->fprintf_func) (info->stream, "B,%s", reg_name[reg]);
 210           break;
 211         case 2:
 212           (*info->fprintf_func) (info->stream, "D,%s", reg_name[reg]);
 213           break;
 214         case 3:
 215         default:
 216           (*info->fprintf_func) (info->stream, "[D,%s]", reg_name[reg]);
 217           if (indirect)
 218             *indirect = 1;
 219           break;
 220         }
 221     }
 222
 223   return pos;
 224 }
 225
 226 /* Disassemble one instruction at address 'memaddr'.  Returns the number
 227    of bytes used by that instruction.  */
 228 static int
 229 print_insn (bfd_vma memaddr, struct disassemble_info* info, int arch)
 230 {
 231   int status;
 232   bfd_byte buffer[4];
 233   unsigned char code;
 234   long format, pos, i;
 235   short sval;
 236   const struct m68hc11_opcode *opcode;
 237
 238   /* Get first byte.  Only one at a time because we don't know the
 239      size of the insn.  */
 240   status = read_memory (memaddr, buffer, 1, info);
 241   if (status != 0)
 242     {
 243       return status;
 244     }
 245
 246   format = 0;
 247   code = buffer[0];
 248   pos = 0;
 249
 250   /* Look for page2,3,4 opcodes.  */
 251   if (code == M6811_OPCODE_PAGE2)
 252     {
 253       pos++;
 254       format = M6811_OP_PAGE2;
 255     }
 256   else if (code == M6811_OPCODE_PAGE3 && arch == cpu6811)
 257     {
 258       pos++;
 259       format = M6811_OP_PAGE3;
 260     }
 261   else if (code == M6811_OPCODE_PAGE4 && arch == cpu6811)
 262     {
 263       pos++;
 264       format = M6811_OP_PAGE4;
 265     }
 266
 267   /* We are in page2,3,4; get the real opcode.  */
 268   if (pos == 1)
 269     {
 270       status = read_memory (memaddr + pos, &buffer[1], 1, info);
 271       if (status != 0)
 272         {
 273           return status;
 274         }
 275       code = buffer[1];
 276     }
 277
 278
 279   /* Look first for a 68HC12 alias.  All of them are 2-bytes long and
 280      in page 1.  There is no operand to print.  We read the second byte
 281      only when we have a possible match.  */
 282   if ((arch & cpu6812) && format == 0)
 283     {
 284       int must_read = 1;
 285
 286       /* Walk the alias table to find a code1+code2 match.  */
 287       for (i = 0; i < m68hc12_num_alias; i++)
 288         {
 289           if (m68hc12_alias[i].code1 == code)
 290             {
 291               if (must_read)
 292                 {
 293                   status = read_memory (memaddr + pos + 1,
 294                                         &buffer[1], 1, info);
 295                   if (status != 0)
 296                     break;
 297
 298                   must_read = 1;
 299                 }
 300               if (m68hc12_alias[i].code2 == (unsigned char) buffer[1])
 301                 {
 302                   (*info->fprintf_func) (info->stream, "%s",
 303                                          m68hc12_alias[i].name);
 304                   return 2;
 305                 }
 306             }
 307         }
 308     }
 309
 310   pos++;
 311
 312   /* Scan the opcode table until we find the opcode
 313      with the corresponding page.  */
 314   opcode = m68hc11_opcodes;
 315   for (i = 0; i < m68hc11_num_opcodes; i++, opcode++)
 316     {
 317       int offset;
 318       int pc_src_offset;
 319       int pc_dst_offset = 0;
 320
 321       if ((opcode->arch & arch) == 0)
 322         continue;
 323       if (opcode->opcode != code)
 324         continue;
 325       if ((opcode->format & OP_PAGE_MASK) != format)
 326         continue;
 327
 328       if (opcode->format & M6812_OP_REG)
 329         {
 330           int j;
 331           int is_jump;
 332
 333           if (opcode->format & M6811_OP_JUMP_REL)
 334             is_jump = 1;
 335           else
 336             is_jump = 0;
 337
 338           status = read_memory (memaddr + pos, &buffer[0], 1, info);
 339           if (status != 0)
 340             {
 341               return status;
 342             }
 343           for (j = 0; i + j < m68hc11_num_opcodes; j++)
 344             {
 345               if ((opcode[j].arch & arch) == 0)
 346                 continue;
 347               if (opcode[j].opcode != code)
 348                 continue;
 349               if (is_jump)
 350                 {
 351                   if (!(opcode[j].format & M6811_OP_JUMP_REL))
 352                     continue;
 353
 354                   if ((opcode[j].format & M6812_OP_IBCC_MARKER)
 355                       && (buffer[0] & 0xc0) != 0x80)
 356                     continue;
 357                   if ((opcode[j].format & M6812_OP_TBCC_MARKER)
 358                       && (buffer[0] & 0xc0) != 0x40)
 359                     continue;
 360                   if ((opcode[j].format & M6812_OP_DBCC_MARKER)
 361                       && (buffer[0] & 0xc0) != 0)
 362                     continue;
 363                   if ((opcode[j].format & M6812_OP_EQ_MARKER)
 364                       && (buffer[0] & 0x20) == 0)
 365                     break;
 366                   if (!(opcode[j].format & M6812_OP_EQ_MARKER)
 367                       && (buffer[0] & 0x20) != 0)
 368                     break;
 369                   continue;
 370                 }
 371               if (opcode[j].format & M6812_OP_EXG_MARKER && buffer[0] & 0x80)
 372                 break;
 373               if ((opcode[j].format & M6812_OP_SEX_MARKER)
 374                   && (((buffer[0] & 0x07) >= 3 && (buffer[0] & 7) <= 7))
 375                   && ((buffer[0] & 0x0f0) <= 0x20))
 376                 break;
 377               if (opcode[j].format & M6812_OP_TFR_MARKER
 378                   && !(buffer[0] & 0x80))
 379                 break;
 380             }
 381           if (i + j < m68hc11_num_opcodes)
 382             opcode = &opcode[j];
 383         }
 384
 385       /* We have found the opcode.  Extract the operand and print it.  */
 386       (*info->fprintf_func) (info->stream, "%s", opcode->name);
 387
 388       format = opcode->format;
 389       if (format & (M6811_OP_MASK | M6811_OP_BITMASK
 390                     | M6811_OP_JUMP_REL | M6812_OP_JUMP_REL16))
 391         {
 392           (*info->fprintf_func) (info->stream, "\t");
 393         }
 394
 395       /* The movb and movw must be handled in a special way...
 396          The source constant 'ii' is not always at the same place.
 397          This is the same for the destination for the post-indexed byte.
 398          The 'offset' is used to do the appropriate correction.
 399
 400                                    offset          offset
 401                               for constant     for destination
 402          movb   18 OB ii hh ll       0          0
 403                 18 08 xb ii          1          -1
 404                 18 0C hh ll hh ll    0          0
 405                 18 09 xb hh ll       1          -1
 406                 18 0D xb hh ll       0          0
 407                 18 0A xb xb          0          0
 408
 409          movw   18 03 jj kk hh ll    0          0
 410                 18 00 xb jj kk       1          -1
 411                 18 04 hh ll hh ll    0          0
 412                 18 01 xb hh ll       1          -1
 413                 18 05 xb hh ll       0          0
 414                 18 02 xb xb          0          0
 415
 416          After the source operand is read, the position 'pos' is incremented
 417          this explains the negative offset for destination.
 418
 419          movb/movw above are the only instructions with this matching
 420          format.  */
 421       offset = ((format & M6812_OP_IDX_P2)
 422                 && (format & (M6811_OP_IMM8 | M6811_OP_IMM16 |
 423                               M6811_OP_IND16)));
 424
 425       /* Operand with one more byte: - immediate, offset,
 426          direct-low address.  */
 427       if (format &
 428           (M6811_OP_IMM8 | M6811_OP_IX | M6811_OP_IY | M6811_OP_DIRECT))
 429         {
 430           status = read_memory (memaddr + pos + offset, &buffer[0], 1, info);
 431           if (status != 0)
 432             {
 433               return status;
 434             }
 435
 436           pos++;
 437
 438           /* This movb/movw is special (see above).  */
 439           offset = -offset;
 440
 441           pc_dst_offset = 2;
 442           if (format & M6811_OP_IMM8)
 443             {
 444               (*info->fprintf_func) (info->stream, "#%d", (int) buffer[0]);
 445               format &= ~M6811_OP_IMM8;
 446               /* Set PC destination offset.  */
 447               pc_dst_offset = 1;
 448             }
 449           else if (format & M6811_OP_IX)
 450             {
 451               /* Offsets are in range 0..255, print them unsigned.  */
 452               (*info->fprintf_func) (info->stream, "%u,x", buffer[0] & 0x0FF);
 453               format &= ~M6811_OP_IX;
 454             }
 455           else if (format & M6811_OP_IY)
 456             {
 457               (*info->fprintf_func) (info->stream, "%u,y", buffer[0] & 0x0FF);
 458               format &= ~M6811_OP_IY;
 459             }
 460           else if (format & M6811_OP_DIRECT)
 461             {
 462               (*info->fprintf_func) (info->stream, "*");
 463               (*info->print_address_func) (buffer[0] & 0x0FF, info);
 464               format &= ~M6811_OP_DIRECT;
 465             }
 466         }
 467
 468 #define M6812_DST_MOVE  (M6812_OP_IND16_P2 | M6812_OP_IDX_P2)
 469 #define M6812_INDEXED_FLAGS (M6812_OP_IDX|M6812_OP_IDX_1|M6812_OP_IDX_2)
 470       /* Analyze the 68HC12 indexed byte.  */
 471       if (format & M6812_INDEXED_FLAGS)
 472         {
 473           int indirect;
 474           bfd_vma endaddr;
 475
 476           endaddr = memaddr + pos + 1;
 477           if (format & M6811_OP_IND16)
 478             endaddr += 2;
 479           pc_src_offset = -1;
 480           pc_dst_offset = 1;
 481           status = print_indexed_operand (memaddr + pos, info, &indirect,
 482                                           (format & M6812_DST_MOVE),
 483                                           pc_src_offset, endaddr);
 484           if (status < 0)
 485             {
 486               return status;
 487             }
 488           pos += status;
 489
 490           /* The indirect addressing mode of the call instruction does
 491              not need the page code.  */
 492           if ((format & M6812_OP_PAGE) && indirect)
 493             format &= ~M6812_OP_PAGE;
 494         }
 495
 496       /* 68HC12 dbcc/ibcc/tbcc operands.  */
 497       if ((format & M6812_OP_REG) && (format & M6811_OP_JUMP_REL))
 498         {
 499           status = read_memory (memaddr + pos, &buffer[0], 2, info);
 500           if (status != 0)
 501             {
 502               return status;
 503             }
 504           (*info->fprintf_func) (info->stream, "%s,",
 505                                  reg_src_table[buffer[0] & 0x07]);
 506           sval = buffer[1] & 0x0ff;
 507           if (buffer[0] & 0x10)
 508             sval |= 0xff00;
 509
 510           pos += 2;
 511           (*info->print_address_func) (memaddr + pos + sval, info);
 512           format &= ~(M6812_OP_REG | M6811_OP_JUMP_REL);
 513         }
 514       else if (format & (M6812_OP_REG | M6812_OP_REG_2))
 515         {
 516           status = read_memory (memaddr + pos, &buffer[0], 1, info);
 517           if (status != 0)
 518             {
 519               return status;
 520             }
 521
 522           pos++;
 523           (*info->fprintf_func) (info->stream, "%s,%s",
 524                                  reg_src_table[(buffer[0] >> 4) & 7],
 525                                  reg_dst_table[(buffer[0] & 7)]);
 526         }
 527
 528       if (format & (M6811_OP_IMM16 | M6811_OP_IND16))
 529         {
 530           int val;
 531           bfd_vma addr;
 532           unsigned page = 0;
 533
 534           status = read_memory (memaddr + pos + offset, &buffer[0], 2, info);
 535           if (status != 0)
 536             {
 537               return status;
 538             }
 539           if (format & M6812_OP_IDX_P2)
 540             offset = -2;
 541           else
 542             offset = 0;
 543           pos += 2;
 544
 545           val = ((buffer[0] << 8) | (buffer[1] & 0x0FF));
 546           val &= 0x0FFFF;
 547           addr = val;
 548           pc_dst_offset = 2;
 549           if (format & M6812_OP_PAGE)
 550             {
 551               status = read_memory (memaddr + pos + offset, buffer, 1, info);
 552               if (status != 0)
 553                 return status;
 554
 555               page = (unsigned) buffer[0];
 556               if (addr >= M68HC12_BANK_BASE && addr < 0x0c000)
 557                 addr = ((val - M68HC12_BANK_BASE)
 558                         | (page << M68HC12_BANK_SHIFT))
 559                    + M68HC12_BANK_VIRT;
 560             }
 561           else if ((arch & cpu6812)
 562                    && addr >= M68HC12_BANK_BASE && addr < 0x0c000)
 563              {
 564                 int cur_page;
 565                 bfd_vma vaddr;
 566
 567                 if (memaddr >= M68HC12_BANK_VIRT)
 568                    cur_page = ((memaddr - M68HC12_BANK_VIRT)
 569                                >> M68HC12_BANK_SHIFT);
 570                 else
 571                    cur_page = 0;
 572
 573                 vaddr = ((addr - M68HC12_BANK_BASE)
 574                          + (cur_page << M68HC12_BANK_SHIFT))
 575                    + M68HC12_BANK_VIRT;
 576                 if (!info->symbol_at_address_func (addr, info)
 577                     && info->symbol_at_address_func (vaddr, info))
 578                    addr = vaddr;
 579              }
 580           if (format & M6811_OP_IMM16)
 581             {
 582               format &= ~M6811_OP_IMM16;
 583               (*info->fprintf_func) (info->stream, "#");
 584             }
 585           else
 586             format &= ~M6811_OP_IND16;
 587
 588           (*info->print_address_func) (addr, info);
 589           if (format & M6812_OP_PAGE)
 590             {
 591               (* info->fprintf_func) (info->stream, " {");
 592               (* info->print_address_func) (val, info);
 593               (* info->fprintf_func) (info->stream, ", %d}", page);
 594               format &= ~M6812_OP_PAGE;
 595               pos += 1;
 596             }
 597         }
 598
 599       if (format & M6812_OP_IDX_P2)
 600         {
 601           (*info->fprintf_func) (info->stream, ", ");
 602           status = print_indexed_operand (memaddr + pos + offset, info,
 603                                           0, 1, pc_dst_offset,
 604                                           memaddr + pos + offset + 1);
 605           if (status < 0)
 606             return status;
 607           pos += status;
 608         }
 609
 610       if (format & M6812_OP_IND16_P2)
 611         {
 612           int val;
 613
 614           (*info->fprintf_func) (info->stream, ", ");
 615
 616           status = read_memory (memaddr + pos + offset, &buffer[0], 2, info);
 617           if (status != 0)
 618             {
 619               return status;
 620             }
 621           pos += 2;
 622
 623           val = ((buffer[0] << 8) | (buffer[1] & 0x0FF));
 624           val &= 0x0FFFF;
 625           (*info->print_address_func) (val, info);
 626         }
 627
 628       /* M6811_OP_BITMASK and M6811_OP_JUMP_REL must be treated separately
 629          and in that order.  The brset/brclr insn have a bitmask and then
 630          a relative branch offset.  */
 631       if (format & M6811_OP_BITMASK)
 632         {
 633           status = read_memory (memaddr + pos, &buffer[0], 1, info);
 634           if (status != 0)
 635             {
 636               return status;
 637             }
 638           pos++;
 639           (*info->fprintf_func) (info->stream, " #$%02x%s",
 640                                  buffer[0] & 0x0FF,
 641                                  (format & M6811_OP_JUMP_REL ? " " : ""));
 642           format &= ~M6811_OP_BITMASK;
 643         }
 644       if (format & M6811_OP_JUMP_REL)
 645         {
 646           int val;
 647
 648           status = read_memory (memaddr + pos, &buffer[0], 1, info);
 649           if (status != 0)
 650             {
 651               return status;
 652             }
 653
 654           pos++;
 655           val = (buffer[0] & 0x80) ? buffer[0] | 0xFFFFFF00 : buffer[0];
 656           (*info->print_address_func) (memaddr + pos + val, info);
 657           format &= ~M6811_OP_JUMP_REL;
 658         }
 659       else if (format & M6812_OP_JUMP_REL16)
 660         {
 661           int val;
 662
 663           status = read_memory (memaddr + pos, &buffer[0], 2, info);
 664           if (status != 0)
 665             {
 666               return status;
 667             }
 668
 669           pos += 2;
 670           val = ((buffer[0] << 8) | (buffer[1] & 0x0FF));
 671           if (val & 0x8000)
 672             val |= 0xffff0000;
 673
 674           (*info->print_address_func) (memaddr + pos + val, info);
 675           format &= ~M6812_OP_JUMP_REL16;
 676         }
 677
 678       if (format & M6812_OP_PAGE)
 679         {
 680           int val;
 681
 682           status = read_memory (memaddr + pos + offset, &buffer[0], 1, info);
 683           if (status != 0)
 684             {
 685               return status;
 686             }
 687           pos += 1;
 688
 689           val = buffer[0] & 0x0ff;
 690           (*info->fprintf_func) (info->stream, ", %d", val);
 691         }
 692
 693 #ifdef DEBUG
 694       /* Consistency check.  'format' must be 0, so that we have handled
 695          all formats; and the computed size of the insn must match the
 696          opcode table content.  */
 697       if (format & ~(M6811_OP_PAGE4 | M6811_OP_PAGE3 | M6811_OP_PAGE2))
 698         {
 699           (*info->fprintf_func) (info->stream, "; Error, format: %lx", format);
 700         }
 701       if (pos != opcode->size)
 702         {
 703           (*info->fprintf_func) (info->stream, "; Error, size: %ld expect %d",
 704                                  pos, opcode->size);
 705         }
 706 #endif
 707       return pos;
 708     }
 709
 710   /* Opcode not recognized.  */
 711   if (format == M6811_OP_PAGE2 && arch & cpu6812
 712       && ((code >= 0x30 && code <= 0x39) || (code >= 0x40)))
 713     (*info->fprintf_func) (info->stream, "trap\t#%d", code & 0x0ff);
 714
 715   else if (format == M6811_OP_PAGE2)
 716     (*info->fprintf_func) (info->stream, ".byte\t0x%02x, 0x%02x",
 717                            M6811_OPCODE_PAGE2, code);
 718   else if (format == M6811_OP_PAGE3)
 719     (*info->fprintf_func) (info->stream, ".byte\t0x%02x, 0x%02x",
 720                            M6811_OPCODE_PAGE3, code);
 721   else if (format == M6811_OP_PAGE4)
 722     (*info->fprintf_func) (info->stream, ".byte\t0x%02x, 0x%02x",
 723                            M6811_OPCODE_PAGE4, code);
 724   else
 725     (*info->fprintf_func) (info->stream, ".byte\t0x%02x", code);
 726
 727   return pos;
 728 }
 729
 730 /* Disassemble one instruction at address 'memaddr'.  Returns the number
 731    of bytes used by that instruction.  */
 732 int
 733 print_insn_m68hc11 (bfd_vma memaddr, struct disassemble_info* info)
 734 {
 735   return print_insn (memaddr, info, cpu6811);
 736 }
 737
 738 int
 739 print_insn_m68hc12 (bfd_vma memaddr, struct disassemble_info* info)
 740 {
 741   return print_insn (memaddr, info, cpu6812);
 742 }