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/* Disassembly routines for TMS320C30 architecture
   Copyright 1998, 1999, 2000, 2002, 2005, 2007, 2009
   Free Software Foundation, Inc.
   Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
 
   This file is part of the GNU opcodes library.
 
   This library is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.
 
   It is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this file; see the file COPYING.  If not, write to the
   Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */
 
#include <errno.h>
#include <math.h>
#include "sysdep.h"
#include "dis-asm.h"
#include "opcode/tic30.h"
 
#define NORMAL_INSN   1
#define PARALLEL_INSN 2
 
/* Gets the type of instruction based on the top 2 or 3 bits of the
   instruction word.  */
#define GET_TYPE(insn) (insn & 0x80000000 ? insn & 0xC0000000 : insn & 0xE0000000)
 
/* Instruction types.  */
#define TWO_OPERAND_1 0x00000000
#define TWO_OPERAND_2 0x40000000
#define THREE_OPERAND 0x20000000
#define PAR_STORE     0xC0000000
#define MUL_ADDS      0x80000000
#define BRANCHES      0x60000000
 
/* Specific instruction id bits.  */
#define NORMAL_IDEN    0x1F800000
#define PAR_STORE_IDEN 0x3E000000
#define MUL_ADD_IDEN   0x2C000000
#define BR_IMM_IDEN    0x1F000000
#define BR_COND_IDEN   0x1C3F0000
 
/* Addressing modes.  */
#define AM_REGISTER 0x00000000
#define AM_DIRECT   0x00200000
#define AM_INDIRECT 0x00400000
#define AM_IMM      0x00600000
 
#define P_FIELD 0x03000000
 
#define REG_AR0 0x08
#define LDP_INSN 0x08700000
 
/* TMS320C30 program counter for current instruction.  */
static unsigned int _pc;
 
struct instruction
{
  int type;
  insn_template *tm;
  partemplate *ptm;
};
 
static int
get_tic30_instruction (unsigned long insn_word, struct instruction *insn)
{
  switch (GET_TYPE (insn_word))
    {
    case TWO_OPERAND_1:
    case TWO_OPERAND_2:
    case THREE_OPERAND:
      insn->type = NORMAL_INSN;
      {
        insn_template *current_optab = (insn_template *) tic30_optab;
 
        for (; current_optab < tic30_optab_end; current_optab++)
          {
            if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
              {
                if (current_optab->operands == 0)
                  {
                    if (current_optab->base_opcode == insn_word)
                      {
                        insn->tm = current_optab;
                        break;
                      }
                  }
                else if ((current_optab->base_opcode & NORMAL_IDEN) == (insn_word & NORMAL_IDEN))
                  {
                    insn->tm = current_optab;
                    break;
                  }
              }
          }
      }
      break;
 
    case PAR_STORE:
      insn->type = PARALLEL_INSN;
      {
        partemplate *current_optab = (partemplate *) tic30_paroptab;
 
        for (; current_optab < tic30_paroptab_end; current_optab++)
          {
            if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
              {
                if ((current_optab->base_opcode & PAR_STORE_IDEN)
                    == (insn_word & PAR_STORE_IDEN))
                  {
                    insn->ptm = current_optab;
                    break;
                  }
              }
          }
      }
      break;
 
    case MUL_ADDS:
      insn->type = PARALLEL_INSN;
      {
        partemplate *current_optab = (partemplate *) tic30_paroptab;
 
        for (; current_optab < tic30_paroptab_end; current_optab++)
          {
            if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
              {
                if ((current_optab->base_opcode & MUL_ADD_IDEN)
                    == (insn_word & MUL_ADD_IDEN))
                  {
                    insn->ptm = current_optab;
                    break;
                  }
              }
          }
      }
      break;
 
    case BRANCHES:
      insn->type = NORMAL_INSN;
      {
        insn_template *current_optab = (insn_template *) tic30_optab;
 
        for (; current_optab < tic30_optab_end; current_optab++)
          {
            if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
              {
                if (current_optab->operand_types[0] & Imm24)
                  {
                    if ((current_optab->base_opcode & BR_IMM_IDEN)
                        == (insn_word & BR_IMM_IDEN))
                      {
                        insn->tm = current_optab;
                        break;
                      }
                  }
                else if (current_optab->operands > 0)
                  {
                    if ((current_optab->base_opcode & BR_COND_IDEN)
                        == (insn_word & BR_COND_IDEN))
                      {
                        insn->tm = current_optab;
                        break;
                      }
                  }
                else
                  {
                    if ((current_optab->base_opcode & (BR_COND_IDEN | 0x00800000))
                        == (insn_word & (BR_COND_IDEN | 0x00800000)))
                      {
                        insn->tm = current_optab;
                        break;
                      }
                  }
              }
          }
      }
      break;
    default:
      return 0;
    }
  return 1;
}
 
static int
get_register_operand (unsigned char fragment, char *buffer)
{
  const reg *current_reg = tic30_regtab;
 
  if (buffer == NULL)
    return 0;
  for (; current_reg < tic30_regtab_end; current_reg++)
    {
      if ((fragment & 0x1F) == current_reg->opcode)
        {
          strcpy (buffer, current_reg->name);
          return 1;
        }
    }
  return 0;
}
 
static int
get_indirect_operand (unsigned short fragment,
                      int size,
                      char *buffer)
{
  unsigned char mod;
  unsigned arnum;
  unsigned char disp;
 
  if (buffer == NULL)
    return 0;
  /* Determine which bits identify the sections of the indirect
     operand based on the size in bytes.  */
  switch (size)
    {
    case 1:
      mod = (fragment & 0x00F8) >> 3;
      arnum = (fragment & 0x0007);
      disp = 0;
      break;
    case 2:
      mod = (fragment & 0xF800) >> 11;
      arnum = (fragment & 0x0700) >> 8;
      disp = (fragment & 0x00FF);
      break;
    default:
      return 0;
    }
  {
    const ind_addr_type *current_ind = tic30_indaddr_tab;
 
    for (; current_ind < tic30_indaddrtab_end; current_ind++)
      {
        if (current_ind->modfield == mod)
          {
            if (current_ind->displacement == IMPLIED_DISP && size == 2)
              continue;
 
            else
              {
                size_t i, len;
                int bufcnt;
 
                len = strlen (current_ind->syntax);
                for (i = 0, bufcnt = 0; i < len; i++, bufcnt++)
                  {
                    buffer[bufcnt] = current_ind->syntax[i];
                    if (buffer[bufcnt - 1] == 'a' && buffer[bufcnt] == 'r')
                      buffer[++bufcnt] = arnum + '0';
                    if (buffer[bufcnt] == '('
                        && current_ind->displacement == DISP_REQUIRED)
                      {
                        sprintf (&buffer[bufcnt + 1], "%u", disp);
                        bufcnt += strlen (&buffer[bufcnt + 1]);
                      }
                  }
                buffer[bufcnt + 1] = '\0';
                break;
              }
          }
      }
  }
  return 1;
}
 
static int
cnvt_tmsfloat_ieee (unsigned long tmsfloat, int size, float *ieeefloat)
{
  unsigned long exp, sign, mant;
  union
  {
    unsigned long l;
    float f;
  } val;
 
  if (size == 2)
    {
      if ((tmsfloat & 0x0000F000) == 0x00008000)
        tmsfloat = 0x80000000;
      else
        {
          tmsfloat <<= 16;
          tmsfloat = (long) tmsfloat >> 4;
        }
    }
  exp = tmsfloat & 0xFF000000;
  if (exp == 0x80000000)
    {
      *ieeefloat = 0.0;
      return 1;
    }
  exp += 0x7F000000;
  sign = (tmsfloat & 0x00800000) << 8;
  mant = tmsfloat & 0x007FFFFF;
  if (exp == 0xFF000000)
    {
      if (mant == 0)
        *ieeefloat = ERANGE;
#ifdef HUGE_VALF
      if (sign == 0)
        *ieeefloat = HUGE_VALF;
      else
        *ieeefloat = -HUGE_VALF;
#else
      if (sign == 0)
        *ieeefloat = 1.0 / 0.0;
      else
        *ieeefloat = -1.0 / 0.0;
#endif
      return 1;
    }
  exp >>= 1;
  if (sign)
    {
      mant = (~mant) & 0x007FFFFF;
      mant += 1;
      exp += mant & 0x00800000;
      exp &= 0x7F800000;
      mant &= 0x007FFFFF;
    }
  if (tmsfloat == 0x80000000)
    sign = mant = exp = 0;
  tmsfloat = sign | exp | mant;
  val.l = tmsfloat;
  *ieeefloat = val.f;
  return 1;
}
 
static int
print_two_operand (disassemble_info *info,
                   unsigned long insn_word,
                   struct instruction *insn)
{
  char name[12];
  char operand[2][13] =
  {
    {0},
    {0}
  };
  float f_number;
 
  if (insn->tm == NULL)
    return 0;
  strcpy (name, insn->tm->name);
  if (insn->tm->opcode_modifier == AddressMode)
    {
      int src_op, dest_op;
      /* Determine whether instruction is a store or a normal instruction.  */
      if ((insn->tm->operand_types[1] & (Direct | Indirect))
          == (Direct | Indirect))
        {
          src_op = 1;
          dest_op = 0;
        }
      else
        {
          src_op = 0;
          dest_op = 1;
        }
      /* Get the destination register.  */
      if (insn->tm->operands == 2)
        get_register_operand ((insn_word & 0x001F0000) >> 16, operand[dest_op]);
      /* Get the source operand based on addressing mode.  */
      switch (insn_word & AddressMode)
        {
        case AM_REGISTER:
          /* Check for the NOP instruction before getting the operand.  */
          if ((insn->tm->operand_types[0] & NotReq) == 0)
            get_register_operand ((insn_word & 0x0000001F), operand[src_op]);
          break;
        case AM_DIRECT:
          sprintf (operand[src_op], "@0x%lX", (insn_word & 0x0000FFFF));
          break;
        case AM_INDIRECT:
          get_indirect_operand ((insn_word & 0x0000FFFF), 2, operand[src_op]);
          break;
        case AM_IMM:
          /* Get the value of the immediate operand based on variable type.  */
          switch (insn->tm->imm_arg_type)
            {
            case Imm_Float:
              cnvt_tmsfloat_ieee ((insn_word & 0x0000FFFF), 2, &f_number);
              sprintf (operand[src_op], "%2.2f", f_number);
              break;
            case Imm_SInt:
              sprintf (operand[src_op], "%d", (short) (insn_word & 0x0000FFFF));
              break;
            case Imm_UInt:
              sprintf (operand[src_op], "%lu", (insn_word & 0x0000FFFF));
              break;
            default:
              return 0;
            }
          /* Handle special case for LDP instruction.  */
          if ((insn_word & 0xFFFFFF00) == LDP_INSN)
            {
              strcpy (name, "ldp");
              sprintf (operand[0], "0x%06lX", (insn_word & 0x000000FF) << 16);
              operand[1][0] = '\0';
            }
        }
    }
  /* Handle case for stack and rotate instructions.  */
  else if (insn->tm->operands == 1)
    {
      if (insn->tm->opcode_modifier == StackOp)
        get_register_operand ((insn_word & 0x001F0000) >> 16, operand[0]);
    }
  /* Output instruction to stream.  */
  info->fprintf_func (info->stream, "   %s %s%c%s", name,
                      operand[0][0] ? operand[0] : "",
                      operand[1][0] ? ',' : ' ',
                      operand[1][0] ? operand[1] : "");
  return 1;
}
 
static int
print_three_operand (disassemble_info *info,
                     unsigned long insn_word,
                     struct instruction *insn)
{
  char operand[3][13] =
  {
    {0},
    {0},
    {0}
  };
 
  if (insn->tm == NULL)
    return 0;
  switch (insn_word & AddressMode)
    {
    case AM_REGISTER:
      get_register_operand ((insn_word & 0x000000FF), operand[0]);
      get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);
      break;
    case AM_DIRECT:
      get_register_operand ((insn_word & 0x000000FF), operand[0]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);
      break;
    case AM_INDIRECT:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);
      get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);
      break;
    case AM_IMM:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);
      break;
    default:
      return 0;
    }
  if (insn->tm->operands == 3)
    get_register_operand ((insn_word & 0x001F0000) >> 16, operand[2]);
  info->fprintf_func (info->stream, "   %s %s,%s%c%s", insn->tm->name,
                      operand[0], operand[1],
                      operand[2][0] ? ',' : ' ',
                      operand[2][0] ? operand[2] : "");
  return 1;
}
 
static int
print_par_insn (disassemble_info *info,
                unsigned long insn_word,
                struct instruction *insn)
{
  size_t i, len;
  char *name1, *name2;
  char operand[2][3][13] =
  {
    {
      {0},
      {0},
      {0}
    },
    {
      {0},
      {0},
      {0}
    }
  };
 
  if (insn->ptm == NULL)
    return 0;
  /* Parse out the names of each of the parallel instructions from the
     q_insn1_insn2 format.  */
  name1 = (char *) strdup (insn->ptm->name + 2);
  name2 = "";
  len = strlen (name1);
  for (i = 0; i < len; i++)
    {
      if (name1[i] == '_')
        {
          name2 = &name1[i + 1];
          name1[i] = '\0';
          break;
        }
    }
  /* Get the operands of the instruction based on the operand order.  */
  switch (insn->ptm->oporder)
    {
    case OO_4op1:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
      get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
      get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);
      break;
    case OO_4op2:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);
      get_register_operand ((insn_word >> 19) & 0x07, operand[1][1]);
      get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);
      break;
    case OO_4op3:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
      get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
      get_register_operand ((insn_word >> 22) & 0x07, operand[0][0]);
      break;
    case OO_5op1:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
      get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
      get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
      get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);
      break;
    case OO_5op2:
      get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
      get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
      get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
      get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);
      get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);
      break;
    case OO_PField:
      if (insn_word & 0x00800000)
        get_register_operand (0x01, operand[0][2]);
      else
        get_register_operand (0x00, operand[0][2]);
      if (insn_word & 0x00400000)
        get_register_operand (0x03, operand[1][2]);
      else
        get_register_operand (0x02, operand[1][2]);
      switch (insn_word & P_FIELD)
        {
        case 0x00000000:
          get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
          get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
          get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);
          get_register_operand ((insn_word >> 19) & 0x07, operand[1][0]);
          break;
        case 0x01000000:
          get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][0]);
          get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
          get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);
          get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
          break;
        case 0x02000000:
          get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);
          get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);
          get_register_operand ((insn_word >> 16) & 0x07, operand[0][1]);
          get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);
          break;
        case 0x03000000:
          get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);
          get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
          get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
          get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
          break;
        }
      break;
    default:
      return 0;
    }
  info->fprintf_func (info->stream, "   %s %s,%s%c%s", name1,
                      operand[0][0], operand[0][1],
                      operand[0][2][0] ? ',' : ' ',
                      operand[0][2][0] ? operand[0][2] : "");
  info->fprintf_func (info->stream, "\n\t\t\t|| %s %s,%s%c%s", name2,
                      operand[1][0], operand[1][1],
                      operand[1][2][0] ? ',' : ' ',
                      operand[1][2][0] ? operand[1][2] : "");
  free (name1);
  return 1;
}
 
static int
print_branch (disassemble_info *info,
              unsigned long insn_word,
              struct instruction *insn)
{
  char operand[2][13] =
  {
    {0},
    {0}
  };
  unsigned long address;
  int print_label = 0;
 
  if (insn->tm == NULL)
    return 0;
  /* Get the operands for 24-bit immediate jumps.  */
  if (insn->tm->operand_types[0] & Imm24)
    {
      address = insn_word & 0x00FFFFFF;
      sprintf (operand[0], "0x%lX", address);
      print_label = 1;
    }
  /* Get the operand for the trap instruction.  */
  else if (insn->tm->operand_types[0] & IVector)
    {
      address = insn_word & 0x0000001F;
      sprintf (operand[0], "0x%lX", address);
    }
  else
    {
      address = insn_word & 0x0000FFFF;
      /* Get the operands for the DB instructions.  */
      if (insn->tm->operands == 2)
        {
          get_register_operand (((insn_word & 0x01C00000) >> 22) + REG_AR0, operand[0]);
          if (insn_word & PCRel)
            {
              sprintf (operand[1], "%d", (short) address);
              print_label = 1;
            }
          else
            get_register_operand (insn_word & 0x0000001F, operand[1]);
        }
      /* Get the operands for the standard branches.  */
      else if (insn->tm->operands == 1)
        {
          if (insn_word & PCRel)
            {
              address = (short) address;
              sprintf (operand[0], "%ld", address);
              print_label = 1;
            }
          else
            get_register_operand (insn_word & 0x0000001F, operand[0]);
        }
    }
  info->fprintf_func (info->stream, "   %s %s%c%s", insn->tm->name,
                      operand[0][0] ? operand[0] : "",
                      operand[1][0] ? ',' : ' ',
                      operand[1][0] ? operand[1] : "");
  /* Print destination of branch in relation to current symbol.  */
  if (print_label && info->symbols)
    {
      asymbol *sym = *info->symbols;
 
      if ((insn->tm->opcode_modifier == PCRel) && (insn_word & PCRel))
        {
          address = (_pc + 1 + (short) address) - ((sym->section->vma + sym->value) / 4);
          /* Check for delayed instruction, if so adjust destination.  */
          if (insn_word & 0x00200000)
            address += 2;
        }
      else
        {
          address -= ((sym->section->vma + sym->value) / 4);
        }
      if (address == 0)
        info->fprintf_func (info->stream, " <%s>", sym->name);
      else
        info->fprintf_func (info->stream, " <%s %c %d>", sym->name,
                            ((short) address < 0) ? '-' : '+',
                            abs (address));
    }
  return 1;
}
 
int
print_insn_tic30 (bfd_vma pc, disassemble_info *info)
{
  unsigned long insn_word;
  struct instruction insn = { 0, NULL, NULL };
  bfd_vma bufaddr = pc - info->buffer_vma;
 
  /* Obtain the current instruction word from the buffer.  */
  insn_word = (*(info->buffer + bufaddr) << 24) | (*(info->buffer + bufaddr + 1) << 16) |
    (*(info->buffer + bufaddr + 2) << 8) | *(info->buffer + bufaddr + 3);
  _pc = pc / 4;
  /* Get the instruction refered to by the current instruction word
     and print it out based on its type.  */
  if (!get_tic30_instruction (insn_word, &insn))
    return -1;
  switch (GET_TYPE (insn_word))
    {
    case TWO_OPERAND_1:
    case TWO_OPERAND_2:
      if (!print_two_operand (info, insn_word, &insn))
        return -1;
      break;
    case THREE_OPERAND:
      if (!print_three_operand (info, insn_word, &insn))
        return -1;
      break;
    case PAR_STORE:
    case MUL_ADDS:
      if (!print_par_insn (info, insn_word, &insn))
        return -1;
      break;
    case BRANCHES:
      if (!print_branch (info, insn_word, &insn))
        return -1;
      break;
    }
  return 4;
}

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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [opcodes/] [tic30-dis.c] - Blame information for rev 607

Line No.	Rev	Author	Line
1	24	jeremybenn	`/* Disassembly routines for TMS320C30 architecture`
2	225	jeremybenn	`Copyright 1998, 1999, 2000, 2002, 2005, 2007, 2009`
3			`Free Software Foundation, Inc.`
4	24	jeremybenn	`Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)`
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 file; see the file COPYING. If not, write to the`
20			`Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,`
21			`MA 02110-1301, USA. */`
22
23			`#include <errno.h>`
24			`#include <math.h>`
25			`#include "sysdep.h"`
26			`#include "dis-asm.h"`
27			`#include "opcode/tic30.h"`
28
29			`#define NORMAL_INSN 1`
30			`#define PARALLEL_INSN 2`
31
32			`/* Gets the type of instruction based on the top 2 or 3 bits of the`
33			`instruction word. */`
34			`#define GET_TYPE(insn) (insn & 0x80000000 ? insn & 0xC0000000 : insn & 0xE0000000)`
35
36			`/* Instruction types. */`
37			`#define TWO_OPERAND_1 0x00000000`
38			`#define TWO_OPERAND_2 0x40000000`
39			`#define THREE_OPERAND 0x20000000`
40			`#define PAR_STORE 0xC0000000`
41			`#define MUL_ADDS 0x80000000`
42			`#define BRANCHES 0x60000000`
43
44			`/* Specific instruction id bits. */`
45			`#define NORMAL_IDEN 0x1F800000`
46			`#define PAR_STORE_IDEN 0x3E000000`
47			`#define MUL_ADD_IDEN 0x2C000000`
48			`#define BR_IMM_IDEN 0x1F000000`
49			`#define BR_COND_IDEN 0x1C3F0000`
50
51			`/* Addressing modes. */`
52			`#define AM_REGISTER 0x00000000`
53			`#define AM_DIRECT 0x00200000`
54			`#define AM_INDIRECT 0x00400000`
55			`#define AM_IMM 0x00600000`
56
57			`#define P_FIELD 0x03000000`
58
59			`#define REG_AR0 0x08`
60			`#define LDP_INSN 0x08700000`
61
62			`/* TMS320C30 program counter for current instruction. */`
63			`static unsigned int _pc;`
64
65			`struct instruction`
66			`{`
67			`int type;`
68	225	jeremybenn	`insn_template *tm;`
69	24	jeremybenn	`partemplate *ptm;`
70			`};`
71
72			`static int`
73			`get_tic30_instruction (unsigned long insn_word, struct instruction *insn)`
74			`{`
75			`switch (GET_TYPE (insn_word))`
76			`{`
77			`case TWO_OPERAND_1:`
78			`case TWO_OPERAND_2:`
79			`case THREE_OPERAND:`
80			`insn->type = NORMAL_INSN;`
81			`{`
82	225	jeremybenn	`insn_template current_optab = (insn_template ) tic30_optab;`
83	24	jeremybenn
84			`for (; current_optab < tic30_optab_end; current_optab++)`
85			`{`
86			`if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))`
87			`{`
88			`if (current_optab->operands == 0)`
89			`{`
90			`if (current_optab->base_opcode == insn_word)`
91			`{`
92			`insn->tm = current_optab;`
93			`break;`
94			`}`
95			`}`
96			`else if ((current_optab->base_opcode & NORMAL_IDEN) == (insn_word & NORMAL_IDEN))`
97			`{`
98			`insn->tm = current_optab;`
99			`break;`
100			`}`
101			`}`
102			`}`
103			`}`
104			`break;`
105
106			`case PAR_STORE:`
107			`insn->type = PARALLEL_INSN;`
108			`{`
109			`partemplate current_optab = (partemplate ) tic30_paroptab;`
110
111			`for (; current_optab < tic30_paroptab_end; current_optab++)`
112			`{`
113			`if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))`
114			`{`
115			`if ((current_optab->base_opcode & PAR_STORE_IDEN)`
116			`== (insn_word & PAR_STORE_IDEN))`
117			`{`
118			`insn->ptm = current_optab;`
119			`break;`
120			`}`
121			`}`
122			`}`
123			`}`
124			`break;`
125
126			`case MUL_ADDS:`
127			`insn->type = PARALLEL_INSN;`
128			`{`
129			`partemplate current_optab = (partemplate ) tic30_paroptab;`
130
131			`for (; current_optab < tic30_paroptab_end; current_optab++)`
132			`{`
133			`if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))`
134			`{`
135			`if ((current_optab->base_opcode & MUL_ADD_IDEN)`
136			`== (insn_word & MUL_ADD_IDEN))`
137			`{`
138			`insn->ptm = current_optab;`
139			`break;`
140			`}`
141			`}`
142			`}`
143			`}`
144			`break;`
145
146			`case BRANCHES:`
147			`insn->type = NORMAL_INSN;`
148			`{`
149	225	jeremybenn	`insn_template current_optab = (insn_template ) tic30_optab;`
150	24	jeremybenn
151			`for (; current_optab < tic30_optab_end; current_optab++)`
152			`{`
153			`if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))`
154			`{`
155			`if (current_optab->operand_types[0] & Imm24)`
156			`{`
157			`if ((current_optab->base_opcode & BR_IMM_IDEN)`
158			`== (insn_word & BR_IMM_IDEN))`
159			`{`
160			`insn->tm = current_optab;`
161			`break;`
162			`}`
163			`}`
164			`else if (current_optab->operands > 0)`
165			`{`
166			`if ((current_optab->base_opcode & BR_COND_IDEN)`
167			`== (insn_word & BR_COND_IDEN))`
168			`{`
169			`insn->tm = current_optab;`
170			`break;`
171			`}`
172			`}`
173			`else`
174			`{`
175			`if ((current_optab->base_opcode & (BR_COND_IDEN \| 0x00800000))`
176			`== (insn_word & (BR_COND_IDEN \| 0x00800000)))`
177			`{`
178			`insn->tm = current_optab;`
179			`break;`
180			`}`
181			`}`
182			`}`
183			`}`
184			`}`
185			`break;`
186			`default:`
187			`return 0;`
188			`}`
189			`return 1;`
190			`}`
191
192			`static int`
193			`get_register_operand (unsigned char fragment, char *buffer)`
194			`{`
195			`const reg *current_reg = tic30_regtab;`
196
197			`if (buffer == NULL)`
198			`return 0;`
199			`for (; current_reg < tic30_regtab_end; current_reg++)`
200			`{`
201			`if ((fragment & 0x1F) == current_reg->opcode)`
202			`{`
203			`strcpy (buffer, current_reg->name);`
204			`return 1;`
205			`}`
206			`}`
207			`return 0;`
208			`}`
209
210			`static int`
211			`get_indirect_operand (unsigned short fragment,`
212			`int size,`
213			`char *buffer)`
214			`{`
215			`unsigned char mod;`
216			`unsigned arnum;`
217			`unsigned char disp;`
218
219			`if (buffer == NULL)`
220			`return 0;`
221			`/* Determine which bits identify the sections of the indirect`
222			`operand based on the size in bytes. */`
223			`switch (size)`
224			`{`
225			`case 1:`
226			`mod = (fragment & 0x00F8) >> 3;`
227			`arnum = (fragment & 0x0007);`
228			`disp = 0;`
229			`break;`
230			`case 2:`
231			`mod = (fragment & 0xF800) >> 11;`
232			`arnum = (fragment & 0x0700) >> 8;`
233			`disp = (fragment & 0x00FF);`
234			`break;`
235			`default:`
236			`return 0;`
237			`}`
238			`{`
239			`const ind_addr_type *current_ind = tic30_indaddr_tab;`
240
241			`for (; current_ind < tic30_indaddrtab_end; current_ind++)`
242			`{`
243			`if (current_ind->modfield == mod)`
244			`{`
245			`if (current_ind->displacement == IMPLIED_DISP && size == 2)`
246			`continue;`
247
248			`else`
249			`{`
250			`size_t i, len;`
251			`int bufcnt;`
252
253			`len = strlen (current_ind->syntax);`
254			`for (i = 0, bufcnt = 0; i < len; i++, bufcnt++)`
255			`{`
256			`buffer[bufcnt] = current_ind->syntax[i];`
257			`if (buffer[bufcnt - 1] == 'a' && buffer[bufcnt] == 'r')`
258			`buffer[++bufcnt] = arnum + '0';`
259			`if (buffer[bufcnt] == '('`
260			`&& current_ind->displacement == DISP_REQUIRED)`
261			`{`
262			`sprintf (&buffer[bufcnt + 1], "%u", disp);`
263			`bufcnt += strlen (&buffer[bufcnt + 1]);`
264			`}`
265			`}`
266			`buffer[bufcnt + 1] = '\0';`
267			`break;`
268			`}`
269			`}`
270			`}`
271			`}`
272			`return 1;`
273			`}`
274
275			`static int`
276			`cnvt_tmsfloat_ieee (unsigned long tmsfloat, int size, float *ieeefloat)`
277			`{`
278			`unsigned long exp, sign, mant;`
279			`union`
280			`{`
281			`unsigned long l;`
282			`float f;`
283			`} val;`
284
285			`if (size == 2)`
286			`{`
287			`if ((tmsfloat & 0x0000F000) == 0x00008000)`
288			`tmsfloat = 0x80000000;`
289			`else`
290			`{`
291			`tmsfloat <<= 16;`
292			`tmsfloat = (long) tmsfloat >> 4;`
293			`}`
294			`}`
295			`exp = tmsfloat & 0xFF000000;`
296			`if (exp == 0x80000000)`
297			`{`
298			`*ieeefloat = 0.0;`
299			`return 1;`
300			`}`
301			`exp += 0x7F000000;`
302			`sign = (tmsfloat & 0x00800000) << 8;`
303			`mant = tmsfloat & 0x007FFFFF;`
304			`if (exp == 0xFF000000)`
305			`{`
306			`if (mant == 0)`
307			`*ieeefloat = ERANGE;`
308			`#ifdef HUGE_VALF`
309			`if (sign == 0)`
310			`*ieeefloat = HUGE_VALF;`
311			`else`
312			`*ieeefloat = -HUGE_VALF;`
313			`#else`
314			`if (sign == 0)`
315			`*ieeefloat = 1.0 / 0.0;`
316			`else`
317			`*ieeefloat = -1.0 / 0.0;`
318			`#endif`
319			`return 1;`
320			`}`
321			`exp >>= 1;`
322			`if (sign)`
323			`{`
324			`mant = (~mant) & 0x007FFFFF;`
325			`mant += 1;`
326			`exp += mant & 0x00800000;`
327			`exp &= 0x7F800000;`
328			`mant &= 0x007FFFFF;`
329			`}`
330			`if (tmsfloat == 0x80000000)`
331			`sign = mant = exp = 0;`
332			`tmsfloat = sign \| exp \| mant;`
333			`val.l = tmsfloat;`
334			`*ieeefloat = val.f;`
335			`return 1;`
336			`}`
337
338			`static int`
339			`print_two_operand (disassemble_info *info,`
340			`unsigned long insn_word,`
341			`struct instruction *insn)`
342			`{`
343			`char name[12];`
344			`char operand[2][13] =`
345			`{`
346			`{0},`
347			`{0}`
348			`};`
349			`float f_number;`
350
351			`if (insn->tm == NULL)`
352			`return 0;`
353			`strcpy (name, insn->tm->name);`
354			`if (insn->tm->opcode_modifier == AddressMode)`
355			`{`
356			`int src_op, dest_op;`
357			`/* Determine whether instruction is a store or a normal instruction. */`
358			`if ((insn->tm->operand_types[1] & (Direct \| Indirect))`
359			`== (Direct \| Indirect))`
360			`{`
361			`src_op = 1;`
362			`dest_op = 0;`
363			`}`
364			`else`
365			`{`
366			`src_op = 0;`
367			`dest_op = 1;`
368			`}`
369			`/* Get the destination register. */`
370			`if (insn->tm->operands == 2)`
371			`get_register_operand ((insn_word & 0x001F0000) >> 16, operand[dest_op]);`
372			`/* Get the source operand based on addressing mode. */`
373			`switch (insn_word & AddressMode)`
374			`{`
375			`case AM_REGISTER:`
376			`/* Check for the NOP instruction before getting the operand. */`
377			`if ((insn->tm->operand_types[0] & NotReq) == 0)`
378			`get_register_operand ((insn_word & 0x0000001F), operand[src_op]);`
379			`break;`
380			`case AM_DIRECT:`
381			`sprintf (operand[src_op], "@0x%lX", (insn_word & 0x0000FFFF));`
382			`break;`
383			`case AM_INDIRECT:`
384			`get_indirect_operand ((insn_word & 0x0000FFFF), 2, operand[src_op]);`
385			`break;`
386			`case AM_IMM:`
387			`/* Get the value of the immediate operand based on variable type. */`
388			`switch (insn->tm->imm_arg_type)`
389			`{`
390			`case Imm_Float:`
391			`cnvt_tmsfloat_ieee ((insn_word & 0x0000FFFF), 2, &f_number);`
392			`sprintf (operand[src_op], "%2.2f", f_number);`
393			`break;`
394			`case Imm_SInt:`
395			`sprintf (operand[src_op], "%d", (short) (insn_word & 0x0000FFFF));`
396			`break;`
397			`case Imm_UInt:`
398			`sprintf (operand[src_op], "%lu", (insn_word & 0x0000FFFF));`
399			`break;`
400			`default:`
401			`return 0;`
402			`}`
403			`/* Handle special case for LDP instruction. */`
404			`if ((insn_word & 0xFFFFFF00) == LDP_INSN)`
405			`{`
406			`strcpy (name, "ldp");`
407			`sprintf (operand[0], "0x%06lX", (insn_word & 0x000000FF) << 16);`
408			`operand[1][0] = '\0';`
409			`}`
410			`}`
411			`}`
412			`/* Handle case for stack and rotate instructions. */`
413			`else if (insn->tm->operands == 1)`
414			`{`
415			`if (insn->tm->opcode_modifier == StackOp)`
416			`get_register_operand ((insn_word & 0x001F0000) >> 16, operand[0]);`
417			`}`
418			`/* Output instruction to stream. */`
419			`info->fprintf_func (info->stream, " %s %s%c%s", name,`
420			`operand[0][0] ? operand[0] : "",`
421			`operand[1][0] ? ',' : ' ',`
422			`operand[1][0] ? operand[1] : "");`
423			`return 1;`
424			`}`
425
426			`static int`
427			`print_three_operand (disassemble_info *info,`
428			`unsigned long insn_word,`
429			`struct instruction *insn)`
430			`{`
431			`char operand[3][13] =`
432			`{`
433			`{0},`
434			`{0},`
435			`{0}`
436			`};`
437
438			`if (insn->tm == NULL)`
439			`return 0;`
440			`switch (insn_word & AddressMode)`
441			`{`
442			`case AM_REGISTER:`
443			`get_register_operand ((insn_word & 0x000000FF), operand[0]);`
444			`get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);`
445			`break;`
446			`case AM_DIRECT:`
447			`get_register_operand ((insn_word & 0x000000FF), operand[0]);`
448			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);`
449			`break;`
450			`case AM_INDIRECT:`
451			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);`
452			`get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);`
453			`break;`
454			`case AM_IMM:`
455			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);`
456			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);`
457			`break;`
458			`default:`
459			`return 0;`
460			`}`
461			`if (insn->tm->operands == 3)`
462			`get_register_operand ((insn_word & 0x001F0000) >> 16, operand[2]);`
463			`info->fprintf_func (info->stream, " %s %s,%s%c%s", insn->tm->name,`
464			`operand[0], operand[1],`
465			`operand[2][0] ? ',' : ' ',`
466			`operand[2][0] ? operand[2] : "");`
467			`return 1;`
468			`}`
469
470			`static int`
471			`print_par_insn (disassemble_info *info,`
472			`unsigned long insn_word,`
473			`struct instruction *insn)`
474			`{`
475			`size_t i, len;`
476			`char name1, name2;`
477			`char operand[2][3][13] =`
478			`{`
479			`{`
480			`{0},`
481			`{0},`
482			`{0}`
483			`},`
484			`{`
485			`{0},`
486			`{0},`
487			`{0}`
488			`}`
489			`};`
490
491			`if (insn->ptm == NULL)`
492			`return 0;`
493			`/* Parse out the names of each of the parallel instructions from the`
494			`q_insn1_insn2 format. */`
495			`name1 = (char *) strdup (insn->ptm->name + 2);`
496			`name2 = "";`
497			`len = strlen (name1);`
498			`for (i = 0; i < len; i++)`
499			`{`
500			`if (name1[i] == '_')`
501			`{`
502			`name2 = &name1[i + 1];`
503			`name1[i] = '\0';`
504			`break;`
505			`}`
506			`}`
507			`/* Get the operands of the instruction based on the operand order. */`
508			`switch (insn->ptm->oporder)`
509			`{`
510			`case OO_4op1:`
511			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);`
512			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);`
513			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);`
514			`get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);`
515			`break;`
516			`case OO_4op2:`
517			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);`
518			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);`
519			`get_register_operand ((insn_word >> 19) & 0x07, operand[1][1]);`
520			`get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);`
521			`break;`
522			`case OO_4op3:`
523			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);`
524			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);`
525			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);`
526			`get_register_operand ((insn_word >> 22) & 0x07, operand[0][0]);`
527			`break;`
528			`case OO_5op1:`
529			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);`
530			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);`
531			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);`
532			`get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);`
533			`get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);`
534			`break;`
535			`case OO_5op2:`
536			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);`
537			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);`
538			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);`
539			`get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);`
540			`get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);`
541			`break;`
542			`case OO_PField:`
543			`if (insn_word & 0x00800000)`
544			`get_register_operand (0x01, operand[0][2]);`
545			`else`
546			`get_register_operand (0x00, operand[0][2]);`
547			`if (insn_word & 0x00400000)`
548			`get_register_operand (0x03, operand[1][2]);`
549			`else`
550			`get_register_operand (0x02, operand[1][2]);`
551			`switch (insn_word & P_FIELD)`
552			`{`
553			`case 0x00000000:`
554			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);`
555			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);`
556			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);`
557			`get_register_operand ((insn_word >> 19) & 0x07, operand[1][0]);`
558			`break;`
559			`case 0x01000000:`
560			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][0]);`
561			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);`
562			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);`
563			`get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);`
564			`break;`
565			`case 0x02000000:`
566			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);`
567			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);`
568			`get_register_operand ((insn_word >> 16) & 0x07, operand[0][1]);`
569			`get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);`
570			`break;`
571			`case 0x03000000:`
572			`get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);`
573			`get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);`
574			`get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);`
575			`get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);`
576			`break;`
577			`}`
578			`break;`
579			`default:`
580			`return 0;`
581			`}`
582			`info->fprintf_func (info->stream, " %s %s,%s%c%s", name1,`
583			`operand[0][0], operand[0][1],`
584			`operand[0][2][0] ? ',' : ' ',`
585			`operand[0][2][0] ? operand[0][2] : "");`
586			`info->fprintf_func (info->stream, "\n\t\t\t\|\| %s %s,%s%c%s", name2,`
587			`operand[1][0], operand[1][1],`
588			`operand[1][2][0] ? ',' : ' ',`
589			`operand[1][2][0] ? operand[1][2] : "");`
590			`free (name1);`
591			`return 1;`
592			`}`
593
594			`static int`
595			`print_branch (disassemble_info *info,`
596			`unsigned long insn_word,`
597			`struct instruction *insn)`
598			`{`
599			`char operand[2][13] =`
600			`{`
601			`{0},`
602			`{0}`
603			`};`
604			`unsigned long address;`
605			`int print_label = 0;`
606
607			`if (insn->tm == NULL)`
608			`return 0;`
609			`/* Get the operands for 24-bit immediate jumps. */`
610			`if (insn->tm->operand_types[0] & Imm24)`
611			`{`
612			`address = insn_word & 0x00FFFFFF;`
613			`sprintf (operand[0], "0x%lX", address);`
614			`print_label = 1;`
615			`}`
616			`/* Get the operand for the trap instruction. */`
617			`else if (insn->tm->operand_types[0] & IVector)`
618			`{`
619			`address = insn_word & 0x0000001F;`
620			`sprintf (operand[0], "0x%lX", address);`
621			`}`
622			`else`
623			`{`
624			`address = insn_word & 0x0000FFFF;`
625			`/* Get the operands for the DB instructions. */`
626			`if (insn->tm->operands == 2)`
627			`{`
628			`get_register_operand (((insn_word & 0x01C00000) >> 22) + REG_AR0, operand[0]);`
629			`if (insn_word & PCRel)`
630			`{`
631			`sprintf (operand[1], "%d", (short) address);`
632			`print_label = 1;`
633			`}`
634			`else`
635			`get_register_operand (insn_word & 0x0000001F, operand[1]);`
636			`}`
637			`/* Get the operands for the standard branches. */`
638			`else if (insn->tm->operands == 1)`
639			`{`
640			`if (insn_word & PCRel)`
641			`{`
642			`address = (short) address;`
643			`sprintf (operand[0], "%ld", address);`
644			`print_label = 1;`
645			`}`
646			`else`
647			`get_register_operand (insn_word & 0x0000001F, operand[0]);`
648			`}`
649			`}`
650			`info->fprintf_func (info->stream, " %s %s%c%s", insn->tm->name,`
651			`operand[0][0] ? operand[0] : "",`
652			`operand[1][0] ? ',' : ' ',`
653			`operand[1][0] ? operand[1] : "");`
654			`/* Print destination of branch in relation to current symbol. */`
655			`if (print_label && info->symbols)`
656			`{`
657			`asymbol sym = info->symbols;`
658
659			`if ((insn->tm->opcode_modifier == PCRel) && (insn_word & PCRel))`
660			`{`
661			`address = (_pc + 1 + (short) address) - ((sym->section->vma + sym->value) / 4);`
662			`/* Check for delayed instruction, if so adjust destination. */`
663			`if (insn_word & 0x00200000)`
664			`address += 2;`
665			`}`
666			`else`
667			`{`
668			`address -= ((sym->section->vma + sym->value) / 4);`
669			`}`
670			`if (address == 0)`
671			`info->fprintf_func (info->stream, " <%s>", sym->name);`
672			`else`
673			`info->fprintf_func (info->stream, " <%s %c %d>", sym->name,`
674			`((short) address < 0) ? '-' : '+',`
675			`abs (address));`
676			`}`
677			`return 1;`
678			`}`
679
680			`int`
681			`print_insn_tic30 (bfd_vma pc, disassemble_info *info)`
682			`{`
683			`unsigned long insn_word;`
684			`struct instruction insn = { 0, NULL, NULL };`
685			`bfd_vma bufaddr = pc - info->buffer_vma;`
686
687			`/* Obtain the current instruction word from the buffer. */`
688			`insn_word = ((info->buffer + bufaddr) << 24) \| ((info->buffer + bufaddr + 1) << 16) \|`
689			`((info->buffer + bufaddr + 2) << 8) \| (info->buffer + bufaddr + 3);`
690			`_pc = pc / 4;`
691			`/* Get the instruction refered to by the current instruction word`
692			`and print it out based on its type. */`
693			`if (!get_tic30_instruction (insn_word, &insn))`
694			`return -1;`
695			`switch (GET_TYPE (insn_word))`
696			`{`
697			`case TWO_OPERAND_1:`
698			`case TWO_OPERAND_2:`
699			`if (!print_two_operand (info, insn_word, &insn))`
700			`return -1;`
701			`break;`
702			`case THREE_OPERAND:`
703			`if (!print_three_operand (info, insn_word, &insn))`
704			`return -1;`
705			`break;`
706			`case PAR_STORE:`
707			`case MUL_ADDS:`
708			`if (!print_par_insn (info, insn_word, &insn))`
709			`return -1;`
710			`break;`
711			`case BRANCHES:`
712			`if (!print_branch (info, insn_word, &insn))`
713			`return -1;`
714			`break;`
715			`}`
716			`return 4;`
717			`}`