[deliverable/binutils-gdb.git] / opcodes / tic30-dis.c

/* Disassembly routines for TMS320C30 architecture
   Copyright 1998, 1999, 2000, 2002, 2005, 2007 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;
  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;
      {
	template *current_optab = (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;
      {
	template *current_optab = (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;
}
Commit	Line	Data
252b5132	1	/* Disassembly routines for TMS320C30 architecture
9b201bb5	2	Copyright 1998, 1999, 2000, 2002, 2005, 2007 Free Software Foundation, Inc.
252b5132 RH	3	Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
252b5132 RH	4
9b201bb5 NC	5	This file is part of the GNU opcodes library.
	6
	7	This library is free software; you can redistribute it and/or modify
252b5132	8	it under the terms of the GNU General Public License as published by
9b201bb5 NC	9	the Free Software Foundation; either version 3, or (at your option)
9b201bb5 NC	10	any later version.
252b5132	11
9b201bb5 NC	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.
252b5132 RH	16
252b5132 RH	17	You should have received a copy of the GNU General Public License
9b201bb5 NC	18	along with this file; see the file COPYING. If not, write to the
	19	Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
	20	MA 02110-1301, USA. */
252b5132 RH	21
	22	#include <errno.h>
	23	#include <math.h>
6094e721	24	#include "sysdep.h"
252b5132 RH	25	#include "dis-asm.h"
	26	#include "opcode/tic30.h"
	27
	28	#define NORMAL_INSN 1
	29	#define PARALLEL_INSN 2
	30
	31	/* Gets the type of instruction based on the top 2 or 3 bits of the
bf830eae	32	instruction word. */
252b5132 RH	33	#define GET_TYPE(insn) (insn & 0x80000000 ? insn & 0xC0000000 : insn & 0xE0000000)
252b5132 RH	34
bf830eae	35	/* Instruction types. */
252b5132 RH	36	#define TWO_OPERAND_1 0x00000000
	37	#define TWO_OPERAND_2 0x40000000
	38	#define THREE_OPERAND 0x20000000
	39	#define PAR_STORE 0xC0000000
	40	#define MUL_ADDS 0x80000000
	41	#define BRANCHES 0x60000000
	42
bf830eae	43	/* Specific instruction id bits. */
252b5132 RH	44	#define NORMAL_IDEN 0x1F800000
	45	#define PAR_STORE_IDEN 0x3E000000
	46	#define MUL_ADD_IDEN 0x2C000000
	47	#define BR_IMM_IDEN 0x1F000000
	48	#define BR_COND_IDEN 0x1C3F0000
	49
bf830eae	50	/* Addressing modes. */
252b5132 RH	51	#define AM_REGISTER 0x00000000
	52	#define AM_DIRECT 0x00200000
	53	#define AM_INDIRECT 0x00400000
	54	#define AM_IMM 0x00600000
	55
	56	#define P_FIELD 0x03000000
	57
	58	#define REG_AR0 0x08
	59	#define LDP_INSN 0x08700000
	60
bf830eae	61	/* TMS320C30 program counter for current instruction. */
252b5132 RH	62	static unsigned int _pc;
	63
	64	struct instruction
bf830eae KH	65	{
	66	int type;
	67	template *tm;
	68	partemplate *ptm;
	69	};
252b5132	70
47b0e7ad NC	71	static int
47b0e7ad NC	72	get_tic30_instruction (unsigned long insn_word, struct instruction *insn)
252b5132 RH	73	{
	74	switch (GET_TYPE (insn_word))
	75	{
	76	case TWO_OPERAND_1:
	77	case TWO_OPERAND_2:
	78	case THREE_OPERAND:
	79	insn->type = NORMAL_INSN;
	80	{
	81	template current_optab = (template ) tic30_optab;
47b0e7ad	82
252b5132 RH	83	for (; current_optab < tic30_optab_end; current_optab++)
	84	{
	85	if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
	86	{
	87	if (current_optab->operands == 0)
	88	{
	89	if (current_optab->base_opcode == insn_word)
	90	{
	91	insn->tm = current_optab;
	92	break;
	93	}
	94	}
	95	else if ((current_optab->base_opcode & NORMAL_IDEN) == (insn_word & NORMAL_IDEN))
	96	{
	97	insn->tm = current_optab;
	98	break;
	99	}
	100	}
	101	}
	102	}
	103	break;
47b0e7ad	104
252b5132 RH	105	case PAR_STORE:
	106	insn->type = PARALLEL_INSN;
	107	{
	108	partemplate current_optab = (partemplate ) tic30_paroptab;
47b0e7ad	109
252b5132 RH	110	for (; current_optab < tic30_paroptab_end; current_optab++)
	111	{
	112	if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
	113	{
47b0e7ad NC	114	if ((current_optab->base_opcode & PAR_STORE_IDEN)
47b0e7ad NC	115	== (insn_word & PAR_STORE_IDEN))
252b5132 RH	116	{
	117	insn->ptm = current_optab;
	118	break;
	119	}
	120	}
	121	}
	122	}
	123	break;
47b0e7ad	124
252b5132 RH	125	case MUL_ADDS:
	126	insn->type = PARALLEL_INSN;
	127	{
	128	partemplate current_optab = (partemplate ) tic30_paroptab;
47b0e7ad	129
252b5132 RH	130	for (; current_optab < tic30_paroptab_end; current_optab++)
	131	{
	132	if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
	133	{
47b0e7ad NC	134	if ((current_optab->base_opcode & MUL_ADD_IDEN)
47b0e7ad NC	135	== (insn_word & MUL_ADD_IDEN))
252b5132 RH	136	{
	137	insn->ptm = current_optab;
	138	break;
	139	}
	140	}
	141	}
	142	}
	143	break;
47b0e7ad	144
252b5132 RH	145	case BRANCHES:
	146	insn->type = NORMAL_INSN;
	147	{
	148	template current_optab = (template ) tic30_optab;
47b0e7ad	149
252b5132 RH	150	for (; current_optab < tic30_optab_end; current_optab++)
	151	{
	152	if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
	153	{
	154	if (current_optab->operand_types[0] & Imm24)
	155	{
47b0e7ad NC	156	if ((current_optab->base_opcode & BR_IMM_IDEN)
47b0e7ad NC	157	== (insn_word & BR_IMM_IDEN))
252b5132 RH	158	{
	159	insn->tm = current_optab;
	160	break;
	161	}
	162	}
	163	else if (current_optab->operands > 0)
	164	{
47b0e7ad NC	165	if ((current_optab->base_opcode & BR_COND_IDEN)
47b0e7ad NC	166	== (insn_word & BR_COND_IDEN))
252b5132 RH	167	{
	168	insn->tm = current_optab;
	169	break;
	170	}
	171	}
	172	else
	173	{
47b0e7ad NC	174	if ((current_optab->base_opcode & (BR_COND_IDEN \| 0x00800000))
47b0e7ad NC	175	== (insn_word & (BR_COND_IDEN \| 0x00800000)))
252b5132 RH	176	{
	177	insn->tm = current_optab;
	178	break;
	179	}
	180	}
	181	}
	182	}
	183	}
	184	break;
	185	default:
	186	return 0;
	187	}
	188	return 1;
	189	}
	190
47b0e7ad NC	191	static int
	192	get_register_operand (unsigned char fragment, char *buffer)
	193	{
	194	const reg *current_reg = tic30_regtab;
	195
	196	if (buffer == NULL)
	197	return 0;
	198	for (; current_reg < tic30_regtab_end; current_reg++)
	199	{
	200	if ((fragment & 0x1F) == current_reg->opcode)
	201	{
	202	strcpy (buffer, current_reg->name);
	203	return 1;
	204	}
	205	}
	206	return 0;
	207	}
	208
	209	static int
	210	get_indirect_operand (unsigned short fragment,
	211	int size,
	212	char *buffer)
	213	{
	214	unsigned char mod;
	215	unsigned arnum;
	216	unsigned char disp;
	217
	218	if (buffer == NULL)
	219	return 0;
	220	/* Determine which bits identify the sections of the indirect
	221	operand based on the size in bytes. */
	222	switch (size)
	223	{
	224	case 1:
	225	mod = (fragment & 0x00F8) >> 3;
	226	arnum = (fragment & 0x0007);
	227	disp = 0;
	228	break;
	229	case 2:
	230	mod = (fragment & 0xF800) >> 11;
	231	arnum = (fragment & 0x0700) >> 8;
	232	disp = (fragment & 0x00FF);
	233	break;
	234	default:
	235	return 0;
	236	}
	237	{
	238	const ind_addr_type *current_ind = tic30_indaddr_tab;
	239
	240	for (; current_ind < tic30_indaddrtab_end; current_ind++)
	241	{
	242	if (current_ind->modfield == mod)
	243	{
	244	if (current_ind->displacement == IMPLIED_DISP && size == 2)
	245	continue;
	246
	247	else
	248	{
	249	size_t i, len;
	250	int bufcnt;
	251
	252	len = strlen (current_ind->syntax);
	253	for (i = 0, bufcnt = 0; i < len; i++, bufcnt++)
	254	{
255	buffer[bufcnt] = current_ind->syntax[i];
256	if (buffer[bufcnt - 1] == 'a' && buffer[bufcnt] == 'r')
257	buffer[++bufcnt] = arnum + '0';
258	if (buffer[bufcnt] == '('
259	&& current_ind->displacement == DISP_REQUIRED)
260	{
261	sprintf (&buffer[bufcnt + 1], "%u", disp);
262	bufcnt += strlen (&buffer[bufcnt + 1]);
263	}
264	}
265	buffer[bufcnt + 1] = '\0';
266	break;
267	}
268	}
269	}
270	}
271	return 1;
272	}
273
274	static int
275	cnvt_tmsfloat_ieee (unsigned long tmsfloat, int size, float *ieeefloat)
276	{
277	unsigned long exp, sign, mant;
278	union
279	{
280	unsigned long l;
281	float f;
282	} val;
283
284	if (size == 2)
285	{
286	if ((tmsfloat & 0x0000F000) == 0x00008000)
287	tmsfloat = 0x80000000;
288	else
289	{
290	tmsfloat <<= 16;
291	tmsfloat = (long) tmsfloat >> 4;
292	}
293	}
294	exp = tmsfloat & 0xFF000000;
295	if (exp == 0x80000000)
296	{
297	*ieeefloat = 0.0;
298	return 1;
299	}
300	exp += 0x7F000000;
301	sign = (tmsfloat & 0x00800000) << 8;
302	mant = tmsfloat & 0x007FFFFF;
303	if (exp == 0xFF000000)
304	{
305	if (mant == 0)
306	*ieeefloat = ERANGE;
b0eec63e L	307	#ifdef HUGE_VALF
	308	if (sign == 0)
	309	*ieeefloat = HUGE_VALF;
	310	else
	311	*ieeefloat = -HUGE_VALF;
	312	#else
47b0e7ad NC	313	if (sign == 0)
	314	*ieeefloat = 1.0 / 0.0;
	315	else
	316	*ieeefloat = -1.0 / 0.0;
b0eec63e	317	#endif
47b0e7ad NC	318	return 1;
	319	}
	320	exp >>= 1;
	321	if (sign)
	322	{
	323	mant = (~mant) & 0x007FFFFF;
	324	mant += 1;
	325	exp += mant & 0x00800000;
	326	exp &= 0x7F800000;
	327	mant &= 0x007FFFFF;
	328	}
	329	if (tmsfloat == 0x80000000)
	330	sign = mant = exp = 0;
	331	tmsfloat = sign \| exp \| mant;
	332	val.l = tmsfloat;
	333	*ieeefloat = val.f;
	334	return 1;
	335	}
	336
	337	static int
	338	print_two_operand (disassemble_info *info,
	339	unsigned long insn_word,
	340	struct instruction *insn)
252b5132 RH	341	{
	342	char name[12];
	343	char operand[2][13] =
	344	{
	345	{0},
47b0e7ad NC	346	{0}
47b0e7ad NC	347	};
252b5132 RH	348	float f_number;
	349
	350	if (insn->tm == NULL)
	351	return 0;
	352	strcpy (name, insn->tm->name);
	353	if (insn->tm->opcode_modifier == AddressMode)
	354	{
	355	int src_op, dest_op;
bf830eae	356	/* Determine whether instruction is a store or a normal instruction. */
47b0e7ad NC	357	if ((insn->tm->operand_types[1] & (Direct \| Indirect))
47b0e7ad NC	358	== (Direct \| Indirect))
252b5132 RH	359	{
	360	src_op = 1;
	361	dest_op = 0;
	362	}
	363	else
	364	{
	365	src_op = 0;
	366	dest_op = 1;
	367	}
bf830eae	368	/* Get the destination register. */
252b5132 RH	369	if (insn->tm->operands == 2)
252b5132 RH	370	get_register_operand ((insn_word & 0x001F0000) >> 16, operand[dest_op]);
bf830eae	371	/* Get the source operand based on addressing mode. */
252b5132 RH	372	switch (insn_word & AddressMode)
	373	{
	374	case AM_REGISTER:
bf830eae	375	/* Check for the NOP instruction before getting the operand. */
252b5132 RH	376	if ((insn->tm->operand_types[0] & NotReq) == 0)
	377	get_register_operand ((insn_word & 0x0000001F), operand[src_op]);
	378	break;
	379	case AM_DIRECT:
	380	sprintf (operand[src_op], "@0x%lX", (insn_word & 0x0000FFFF));
	381	break;
	382	case AM_INDIRECT:
	383	get_indirect_operand ((insn_word & 0x0000FFFF), 2, operand[src_op]);
	384	break;
	385	case AM_IMM:
bf830eae	386	/* Get the value of the immediate operand based on variable type. */
252b5132 RH	387	switch (insn->tm->imm_arg_type)
	388	{
	389	case Imm_Float:
	390	cnvt_tmsfloat_ieee ((insn_word & 0x0000FFFF), 2, &f_number);
	391	sprintf (operand[src_op], "%2.2f", f_number);
	392	break;
	393	case Imm_SInt:
	394	sprintf (operand[src_op], "%d", (short) (insn_word & 0x0000FFFF));
	395	break;
	396	case Imm_UInt:
	397	sprintf (operand[src_op], "%lu", (insn_word & 0x0000FFFF));
	398	break;
	399	default:
	400	return 0;
	401	}
bf830eae	402	/* Handle special case for LDP instruction. */
252b5132 RH	403	if ((insn_word & 0xFFFFFF00) == LDP_INSN)
	404	{
	405	strcpy (name, "ldp");
	406	sprintf (operand[0], "0x%06lX", (insn_word & 0x000000FF) << 16);
	407	operand[1][0] = '\0';
	408	}
	409	}
	410	}
bf830eae	411	/* Handle case for stack and rotate instructions. */
252b5132 RH	412	else if (insn->tm->operands == 1)
	413	{
	414	if (insn->tm->opcode_modifier == StackOp)
47b0e7ad	415	get_register_operand ((insn_word & 0x001F0000) >> 16, operand[0]);
252b5132	416	}
bf830eae	417	/* Output instruction to stream. */
252b5132 RH	418	info->fprintf_func (info->stream, " %s %s%c%s", name,
	419	operand[0][0] ? operand[0] : "",
	420	operand[1][0] ? ',' : ' ',
	421	operand[1][0] ? operand[1] : "");
	422	return 1;
	423	}
	424
47b0e7ad NC	425	static int
	426	print_three_operand (disassemble_info *info,
	427	unsigned long insn_word,
	428	struct instruction *insn)
252b5132 RH	429	{
	430	char operand[3][13] =
	431	{
	432	{0},
	433	{0},
47b0e7ad NC	434	{0}
47b0e7ad NC	435	};
252b5132 RH	436
	437	if (insn->tm == NULL)
	438	return 0;
	439	switch (insn_word & AddressMode)
	440	{
	441	case AM_REGISTER:
	442	get_register_operand ((insn_word & 0x000000FF), operand[0]);
	443	get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);
	444	break;
	445	case AM_DIRECT:
	446	get_register_operand ((insn_word & 0x000000FF), operand[0]);
	447	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);
	448	break;
	449	case AM_INDIRECT:
	450	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);
	451	get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);
	452	break;
	453	case AM_IMM:
	454	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);
	455	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);
	456	break;
	457	default:
	458	return 0;
	459	}
	460	if (insn->tm->operands == 3)
	461	get_register_operand ((insn_word & 0x001F0000) >> 16, operand[2]);
	462	info->fprintf_func (info->stream, " %s %s,%s%c%s", insn->tm->name,
	463	operand[0], operand[1],
	464	operand[2][0] ? ',' : ' ',
	465	operand[2][0] ? operand[2] : "");
	466	return 1;
	467	}
	468
47b0e7ad NC	469	static int
	470	print_par_insn (disassemble_info *info,
	471	unsigned long insn_word,
	472	struct instruction *insn)
252b5132 RH	473	{
	474	size_t i, len;
	475	char name1, name2;
	476	char operand[2][3][13] =
	477	{
	478	{
	479	{0},
	480	{0},
47b0e7ad NC	481	{0}
47b0e7ad NC	482	},
252b5132 RH	483	{
	484	{0},
	485	{0},
47b0e7ad NC	486	{0}
	487	}
	488	};
252b5132 RH	489
	490	if (insn->ptm == NULL)
	491	return 0;
	492	/* Parse out the names of each of the parallel instructions from the
bf830eae	493	q_insn1_insn2 format. */
252b5132 RH	494	name1 = (char *) strdup (insn->ptm->name + 2);
	495	name2 = "";
	496	len = strlen (name1);
	497	for (i = 0; i < len; i++)
	498	{
	499	if (name1[i] == '_')
	500	{
	501	name2 = &name1[i + 1];
	502	name1[i] = '\0';
	503	break;
	504	}
	505	}
bf830eae	506	/* Get the operands of the instruction based on the operand order. */
252b5132 RH	507	switch (insn->ptm->oporder)
	508	{
	509	case OO_4op1:
	510	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
	511	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
	512	get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
	513	get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);
	514	break;
	515	case OO_4op2:
	516	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
	517	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);
	518	get_register_operand ((insn_word >> 19) & 0x07, operand[1][1]);
	519	get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);
	520	break;
	521	case OO_4op3:
	522	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
	523	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
	524	get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
	525	get_register_operand ((insn_word >> 22) & 0x07, operand[0][0]);
	526	break;
	527	case OO_5op1:
	528	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
	529	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
	530	get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
	531	get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
	532	get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);
	533	break;
	534	case OO_5op2:
	535	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
	536	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
	537	get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
	538	get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);
	539	get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);
	540	break;
	541	case OO_PField:
	542	if (insn_word & 0x00800000)
	543	get_register_operand (0x01, operand[0][2]);
	544	else
	545	get_register_operand (0x00, operand[0][2]);
	546	if (insn_word & 0x00400000)
	547	get_register_operand (0x03, operand[1][2]);
	548	else
	549	get_register_operand (0x02, operand[1][2]);
	550	switch (insn_word & P_FIELD)
	551	{
	552	case 0x00000000:
	553	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
	554	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
	555	get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);
	556	get_register_operand ((insn_word >> 19) & 0x07, operand[1][0]);
	557	break;
	558	case 0x01000000:
	559	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][0]);
	560	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
	561	get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);
	562	get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
	563	break;
	564	case 0x02000000:
	565	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);
	566	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);
	567	get_register_operand ((insn_word >> 16) & 0x07, operand[0][1]);
	568	get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);
	569	break;
	570	case 0x03000000:
571	get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);
572	get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
573	get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
574	get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
575	break;
576	}
577	break;
578	default:
579	return 0;
580	}
581	info->fprintf_func (info->stream, " %s %s,%s%c%s", name1,
582	operand[0][0], operand[0][1],
583	operand[0][2][0] ? ',' : ' ',
584	operand[0][2][0] ? operand[0][2] : "");
585	info->fprintf_func (info->stream, "\n\t\t\t\|\| %s %s,%s%c%s", name2,
586	operand[1][0], operand[1][1],
587	operand[1][2][0] ? ',' : ' ',
588	operand[1][2][0] ? operand[1][2] : "");
589	free (name1);
590	return 1;
591	}
592
47b0e7ad NC	593	static int
	594	print_branch (disassemble_info *info,
	595	unsigned long insn_word,
	596	struct instruction *insn)
252b5132 RH	597	{
	598	char operand[2][13] =
	599	{
	600	{0},
47b0e7ad NC	601	{0}
47b0e7ad NC	602	};
252b5132 RH	603	unsigned long address;
	604	int print_label = 0;
	605
	606	if (insn->tm == NULL)
	607	return 0;
bf830eae	608	/* Get the operands for 24-bit immediate jumps. */
252b5132 RH	609	if (insn->tm->operand_types[0] & Imm24)
	610	{
	611	address = insn_word & 0x00FFFFFF;
	612	sprintf (operand[0], "0x%lX", address);
	613	print_label = 1;
	614	}
bf830eae	615	/* Get the operand for the trap instruction. */
252b5132 RH	616	else if (insn->tm->operand_types[0] & IVector)
	617	{
	618	address = insn_word & 0x0000001F;
	619	sprintf (operand[0], "0x%lX", address);
	620	}
	621	else
	622	{
	623	address = insn_word & 0x0000FFFF;
bf830eae	624	/* Get the operands for the DB instructions. */
252b5132 RH	625	if (insn->tm->operands == 2)
	626	{
	627	get_register_operand (((insn_word & 0x01C00000) >> 22) + REG_AR0, operand[0]);
	628	if (insn_word & PCRel)
	629	{
	630	sprintf (operand[1], "%d", (short) address);
	631	print_label = 1;
	632	}
	633	else
	634	get_register_operand (insn_word & 0x0000001F, operand[1]);
	635	}
bf830eae	636	/* Get the operands for the standard branches. */
252b5132 RH	637	else if (insn->tm->operands == 1)
	638	{
	639	if (insn_word & PCRel)
	640	{
	641	address = (short) address;
	642	sprintf (operand[0], "%ld", address);
	643	print_label = 1;
	644	}
	645	else
	646	get_register_operand (insn_word & 0x0000001F, operand[0]);
	647	}
	648	}
	649	info->fprintf_func (info->stream, " %s %s%c%s", insn->tm->name,
	650	operand[0][0] ? operand[0] : "",
	651	operand[1][0] ? ',' : ' ',
	652	operand[1][0] ? operand[1] : "");
bf830eae	653	/* Print destination of branch in relation to current symbol. */
252b5132 RH	654	if (print_label && info->symbols)
	655	{
	656	asymbol sym = info->symbols;
	657
	658	if ((insn->tm->opcode_modifier == PCRel) && (insn_word & PCRel))
	659	{
	660	address = (_pc + 1 + (short) address) - ((sym->section->vma + sym->value) / 4);
bf830eae	661	/* Check for delayed instruction, if so adjust destination. */
252b5132 RH	662	if (insn_word & 0x00200000)
	663	address += 2;
	664	}
	665	else
	666	{
	667	address -= ((sym->section->vma + sym->value) / 4);
	668	}
	669	if (address == 0)
	670	info->fprintf_func (info->stream, " <%s>", sym->name);
	671	else
	672	info->fprintf_func (info->stream, " <%s %c %d>", sym->name,
	673	((short) address < 0) ? '-' : '+',
	674	abs (address));
	675	}
	676	return 1;
	677	}
	678
	679	int
47b0e7ad	680	print_insn_tic30 (bfd_vma pc, disassemble_info *info)
252b5132	681	{
47b0e7ad NC	682	unsigned long insn_word;
	683	struct instruction insn = { 0, NULL, NULL };
	684	bfd_vma bufaddr = pc - info->buffer_vma;
252b5132	685
47b0e7ad NC	686	/* Obtain the current instruction word from the buffer. */
	687	insn_word = ((info->buffer + bufaddr) << 24) \| ((info->buffer + bufaddr + 1) << 16) \|
	688	((info->buffer + bufaddr + 2) << 8) \| (info->buffer + bufaddr + 3);
	689	_pc = pc / 4;
	690	/* Get the instruction refered to by the current instruction word
	691	and print it out based on its type. */
	692	if (!get_tic30_instruction (insn_word, &insn))
	693	return -1;
	694	switch (GET_TYPE (insn_word))
252b5132	695	{
47b0e7ad NC	696	case TWO_OPERAND_1:
	697	case TWO_OPERAND_2:
	698	if (!print_two_operand (info, insn_word, &insn))
	699	return -1;
252b5132	700	break;
47b0e7ad NC	701	case THREE_OPERAND:
	702	if (!print_three_operand (info, insn_word, &insn))
	703	return -1;
	704	break;
	705	case PAR_STORE:
	706	case MUL_ADDS:
	707	if (!print_par_insn (info, insn_word, &insn))
	708	return -1;
	709	break;
	710	case BRANCHES:
	711	if (!print_branch (info, insn_word, &insn))
	712	return -1;
252b5132	713	break;
252b5132	714	}
47b0e7ad	715	return 4;
252b5132	716	}