[3/4] disas/mips: remove unused mips16_to_32_reg_map[]

diff --git a/disas/mips.c b/disas/mips.c
index b94d5d9..b10dcf5 100644
--- a/disas/mips.c
+++ b/disas/mips.c
@@ -3511,15 +3511,6 @@  struct mips_cp0sel_name
   const char * const name;
 };
 
-/* The mips16 registers.  */
-static const unsigned int mips16_to_32_reg_map[] =
-{
-  16, 17, 2, 3, 4, 5, 6, 7
-};
-
-#define mips16_reg_names(rn)	mips_gpr_names[mips16_to_32_reg_map[rn]]
-
-
 static const char * const mips_gpr_names_numeric[32] =
 {
   "$0",   "$1",   "$2",   "$3",   "$4",   "$5",   "$6",   "$7",
@@ -5075,715 +5066,3 @@  print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
 {
   return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
 }
-
-/* Disassemble mips16 instructions.  */
-#if 0
-static int
-print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
-{
-  int status;
-  bfd_byte buffer[2];
-  int length;
-  int insn;
-  bfd_boolean use_extend;
-  int extend = 0;
-  const struct mips_opcode *op, *opend;
-
-  info->bytes_per_chunk = 2;
-  info->display_endian = info->endian;
-  info->insn_info_valid = 1;
-  info->branch_delay_insns = 0;
-  info->data_size = 0;
-  info->insn_type = dis_nonbranch;
-  info->target = 0;
-  info->target2 = 0;
-
-  status = (*info->read_memory_func) (memaddr, buffer, 2, info);
-  if (status != 0)
-    {
-      (*info->memory_error_func) (status, memaddr, info);
-      return -1;
-    }
-
-  length = 2;
-
-  if (info->endian == BFD_ENDIAN_BIG)
-    insn = bfd_getb16 (buffer);
-  else
-    insn = bfd_getl16 (buffer);
-
-  /* Handle the extend opcode specially.  */
-  use_extend = FALSE;
-  if ((insn & 0xf800) == 0xf000)
-    {
-      use_extend = TRUE;
-      extend = insn & 0x7ff;
-
-      memaddr += 2;
-
-      status = (*info->read_memory_func) (memaddr, buffer, 2, info);
-      if (status != 0)
-	{
-	  (*info->fprintf_func) (info->stream, "extend 0x%x",
-				 (unsigned int) extend);
-	  (*info->memory_error_func) (status, memaddr, info);
-	  return -1;
-	}
-
-      if (info->endian == BFD_ENDIAN_BIG)
-	insn = bfd_getb16 (buffer);
-      else
-	insn = bfd_getl16 (buffer);
-
-      /* Check for an extend opcode followed by an extend opcode.  */
-      if ((insn & 0xf800) == 0xf000)
-	{
-	  (*info->fprintf_func) (info->stream, "extend 0x%x",
-				 (unsigned int) extend);
-	  info->insn_type = dis_noninsn;
-	  return length;
-	}
-
-      length += 2;
-    }
-
-  /* FIXME: Should probably use a hash table on the major opcode here.  */
-
-  opend = mips16_opcodes + bfd_mips16_num_opcodes;
-  for (op = mips16_opcodes; op < opend; op++)
-    {
-      if (op->pinfo != INSN_MACRO
-	  && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
-	  && (insn & op->mask) == op->match)
-	{
-	  const char *s;
-
-	  if (strchr (op->args, 'a') != NULL)
-	    {
-	      if (use_extend)
-		{
-		  (*info->fprintf_func) (info->stream, "extend 0x%x",
-					 (unsigned int) extend);
-		  info->insn_type = dis_noninsn;
-		  return length - 2;
-		}
-
-	      use_extend = FALSE;
-
-	      memaddr += 2;
-
-	      status = (*info->read_memory_func) (memaddr, buffer, 2,
-						  info);
-	      if (status == 0)
-		{
-		  use_extend = TRUE;
-		  if (info->endian == BFD_ENDIAN_BIG)
-		    extend = bfd_getb16 (buffer);
-		  else
-		    extend = bfd_getl16 (buffer);
-		  length += 2;
-		}
-	    }
-
-	  (*info->fprintf_func) (info->stream, "%s", op->name);
-	  if (op->args[0] != '\0')
-	    (*info->fprintf_func) (info->stream, "\t");
-
-	  for (s = op->args; *s != '\0'; s++)
-	    {
-	      if (*s == ','
-		  && s[1] == 'w'
-		  && (((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)
-		      == ((insn >> MIPS16OP_SH_RY) & MIPS16OP_MASK_RY)))
-		{
-		  /* Skip the register and the comma.  */
-		  ++s;
-		  continue;
-		}
-	      if (*s == ','
-		  && s[1] == 'v'
-		  && (((insn >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ)
-		      == ((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)))
-		{
-		  /* Skip the register and the comma.  */
-		  ++s;
-		  continue;
-		}
-	      print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr,
-				     info);
-	    }
-
-	  if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
-	    {
-	      info->branch_delay_insns = 1;
-	      if (info->insn_type != dis_jsr)
-		info->insn_type = dis_branch;
-	    }
-
-	  return length;
-	}
-    }
-
-  if (use_extend)
-    (*info->fprintf_func) (info->stream, "0x%x", extend | 0xf000);
-  (*info->fprintf_func) (info->stream, "0x%x", insn);
-  info->insn_type = dis_noninsn;
-
-  return length;
-}
-
-/* Disassemble an operand for a mips16 instruction.  */
-
-static void
-print_mips16_insn_arg (char type,
-		       const struct mips_opcode *op,
-		       int l,
-		       bfd_boolean use_extend,
-		       int extend,
-		       bfd_vma memaddr,
-		       struct disassemble_info *info)
-{
-  switch (type)
-    {
-    case ',':
-    case '(':
-    case ')':
-      (*info->fprintf_func) (info->stream, "%c", type);
-      break;
-
-    case 'y':
-    case 'w':
-      (*info->fprintf_func) (info->stream, "%s",
-			     mips16_reg_names(((l >> MIPS16OP_SH_RY)
-					       & MIPS16OP_MASK_RY)));
-      break;
-
-    case 'x':
-    case 'v':
-      (*info->fprintf_func) (info->stream, "%s",
-			     mips16_reg_names(((l >> MIPS16OP_SH_RX)
-					       & MIPS16OP_MASK_RX)));
-      break;
-
-    case 'z':
-      (*info->fprintf_func) (info->stream, "%s",
-			     mips16_reg_names(((l >> MIPS16OP_SH_RZ)
-					       & MIPS16OP_MASK_RZ)));
-      break;
-
-    case 'Z':
-      (*info->fprintf_func) (info->stream, "%s",
-			     mips16_reg_names(((l >> MIPS16OP_SH_MOVE32Z)
-					       & MIPS16OP_MASK_MOVE32Z)));
-      break;
-
-    case '0':
-      (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
-      break;
-
-    case 'S':
-      (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[29]);
-      break;
-
-    case 'P':
-      (*info->fprintf_func) (info->stream, "$pc");
-      break;
-
-    case 'R':
-      (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[31]);
-      break;
-
-    case 'X':
-      (*info->fprintf_func) (info->stream, "%s",
-			     mips_gpr_names[((l >> MIPS16OP_SH_REGR32)
-					    & MIPS16OP_MASK_REGR32)]);
-      break;
-
-    case 'Y':
-      (*info->fprintf_func) (info->stream, "%s",
-			     mips_gpr_names[MIPS16OP_EXTRACT_REG32R (l)]);
-      break;
-
-    case '<':
-    case '>':
-    case '[':
-    case ']':
-    case '4':
-    case '5':
-    case 'H':
-    case 'W':
-    case 'D':
-    case 'j':
-    case '6':
-    case '8':
-    case 'V':
-    case 'C':
-    case 'U':
-    case 'k':
-    case 'K':
-    case 'p':
-    case 'q':
-    case 'A':
-    case 'B':
-    case 'E':
-      {
-	int immed, nbits, shift, signedp, extbits, pcrel, extu, branch;
-
-	shift = 0;
-	signedp = 0;
-	extbits = 16;
-	pcrel = 0;
-	extu = 0;
-	branch = 0;
-	switch (type)
-	  {
-	  case '<':
-	    nbits = 3;
-	    immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
-	    extbits = 5;
-	    extu = 1;
-	    break;
-	  case '>':
-	    nbits = 3;
-	    immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
-	    extbits = 5;
-	    extu = 1;
-	    break;
-	  case '[':
-	    nbits = 3;
-	    immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
-	    extbits = 6;
-	    extu = 1;
-	    break;
-	  case ']':
-	    nbits = 3;
-	    immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
-	    extbits = 6;
-	    extu = 1;
-	    break;
-	  case '4':
-	    nbits = 4;
-	    immed = (l >> MIPS16OP_SH_IMM4) & MIPS16OP_MASK_IMM4;
-	    signedp = 1;
-	    extbits = 15;
-	    break;
-	  case '5':
-	    nbits = 5;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    info->insn_type = dis_dref;
-	    info->data_size = 1;
-	    break;
-	  case 'H':
-	    nbits = 5;
-	    shift = 1;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    info->insn_type = dis_dref;
-	    info->data_size = 2;
-	    break;
-	  case 'W':
-	    nbits = 5;
-	    shift = 2;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    if ((op->pinfo & MIPS16_INSN_READ_PC) == 0
-		&& (op->pinfo & MIPS16_INSN_READ_SP) == 0)
-	      {
-		info->insn_type = dis_dref;
-		info->data_size = 4;
-	      }
-	    break;
-	  case 'D':
-	    nbits = 5;
-	    shift = 3;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    info->insn_type = dis_dref;
-	    info->data_size = 8;
-	    break;
-	  case 'j':
-	    nbits = 5;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    signedp = 1;
-	    break;
-	  case '6':
-	    nbits = 6;
-	    immed = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
-	    break;
-	  case '8':
-	    nbits = 8;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    break;
-	  case 'V':
-	    nbits = 8;
-	    shift = 2;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    /* FIXME: This might be lw, or it might be addiu to $sp or
-               $pc.  We assume it's load.  */
-	    info->insn_type = dis_dref;
-	    info->data_size = 4;
-	    break;
-	  case 'C':
-	    nbits = 8;
-	    shift = 3;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    info->insn_type = dis_dref;
-	    info->data_size = 8;
-	    break;
-	  case 'U':
-	    nbits = 8;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    extu = 1;
-	    break;
-	  case 'k':
-	    nbits = 8;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    signedp = 1;
-	    break;
-	  case 'K':
-	    nbits = 8;
-	    shift = 3;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    signedp = 1;
-	    break;
-	  case 'p':
-	    nbits = 8;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    signedp = 1;
-	    pcrel = 1;
-	    branch = 1;
-	    info->insn_type = dis_condbranch;
-	    break;
-	  case 'q':
-	    nbits = 11;
-	    immed = (l >> MIPS16OP_SH_IMM11) & MIPS16OP_MASK_IMM11;
-	    signedp = 1;
-	    pcrel = 1;
-	    branch = 1;
-	    info->insn_type = dis_branch;
-	    break;
-	  case 'A':
-	    nbits = 8;
-	    shift = 2;
-	    immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
-	    pcrel = 1;
-	    /* FIXME: This can be lw or la.  We assume it is lw.  */
-	    info->insn_type = dis_dref;
-	    info->data_size = 4;
-	    break;
-	  case 'B':
-	    nbits = 5;
-	    shift = 3;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    pcrel = 1;
-	    info->insn_type = dis_dref;
-	    info->data_size = 8;
-	    break;
-	  case 'E':
-	    nbits = 5;
-	    shift = 2;
-	    immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
-	    pcrel = 1;
-	    break;
-	  default:
-	    abort ();
-	  }
-
-	if (! use_extend)
-	  {
-	    if (signedp && immed >= (1 << (nbits - 1)))
-	      immed -= 1 << nbits;
-	    immed <<= shift;
-	    if ((type == '<' || type == '>' || type == '[' || type == ']')
-		&& immed == 0)
-	      immed = 8;
-	  }
-	else
-	  {
-	    if (extbits == 16)
-	      immed |= ((extend & 0x1f) << 11) | (extend & 0x7e0);
-	    else if (extbits == 15)
-	      immed |= ((extend & 0xf) << 11) | (extend & 0x7f0);
-	    else
-	      immed = ((extend >> 6) & 0x1f) | (extend & 0x20);
-	    immed &= (1 << extbits) - 1;
-	    if (! extu && immed >= (1 << (extbits - 1)))
-	      immed -= 1 << extbits;
-	  }
-
-	if (! pcrel)
-	  (*info->fprintf_func) (info->stream, "%d", immed);
-	else
-	  {
-	    bfd_vma baseaddr;
-
-	    if (branch)
-	      {
-		immed *= 2;
-		baseaddr = memaddr + 2;
-	      }
-	    else if (use_extend)
-	      baseaddr = memaddr - 2;
-	    else
-	      {
-		int status;
-		bfd_byte buffer[2];
-
-		baseaddr = memaddr;
-
-		/* If this instruction is in the delay slot of a jr
-                   instruction, the base address is the address of the
-                   jr instruction.  If it is in the delay slot of jalr
-                   instruction, the base address is the address of the
-                   jalr instruction.  This test is unreliable: we have
-                   no way of knowing whether the previous word is
-                   instruction or data.  */
-		status = (*info->read_memory_func) (memaddr - 4, buffer, 2,
-						    info);
-		if (status == 0
-		    && (((info->endian == BFD_ENDIAN_BIG
-			  ? bfd_getb16 (buffer)
-			  : bfd_getl16 (buffer))
-			 & 0xf800) == 0x1800))
-		  baseaddr = memaddr - 4;
-		else
-		  {
-		    status = (*info->read_memory_func) (memaddr - 2, buffer,
-							2, info);
-		    if (status == 0
-			&& (((info->endian == BFD_ENDIAN_BIG
-			      ? bfd_getb16 (buffer)
-			      : bfd_getl16 (buffer))
-			     & 0xf81f) == 0xe800))
-		      baseaddr = memaddr - 2;
-		  }
-	      }
-	    info->target = (baseaddr & ~((1 << shift) - 1)) + immed;
-	    if (pcrel && branch
-		&& info->flavour == bfd_target_unknown_flavour)
-	      /* For gdb disassembler, maintain odd address.  */
-	      info->target |= 1;
-	    (*info->print_address_func) (info->target, info);
-	  }
-      }
-      break;
-
-    case 'a':
-      {
-	int jalx = l & 0x400;
-
-	if (! use_extend)
-	  extend = 0;
-	l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2);
-	if (!jalx && info->flavour == bfd_target_unknown_flavour)
-	  /* For gdb disassembler, maintain odd address.  */
-	  l |= 1;
-      }
-      info->target = ((memaddr + 4) & ~(bfd_vma) 0x0fffffff) | l;
-      (*info->print_address_func) (info->target, info);
-      info->insn_type = dis_jsr;
-      info->branch_delay_insns = 1;
-      break;
-
-    case 'l':
-    case 'L':
-      {
-	int need_comma, amask, smask;
-
-	need_comma = 0;
-
-	l = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
-
-	amask = (l >> 3) & 7;
-
-	if (amask > 0 && amask < 5)
-	  {
-	    (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
-	    if (amask > 1)
-	      (*info->fprintf_func) (info->stream, "-%s",
-				     mips_gpr_names[amask + 3]);
-	    need_comma = 1;
-	  }
-
-	smask = (l >> 1) & 3;
-	if (smask == 3)
-	  {
-	    (*info->fprintf_func) (info->stream, "%s??",
-				   need_comma ? "," : "");
-	    need_comma = 1;
-	  }
-	else if (smask > 0)
-	  {
-	    (*info->fprintf_func) (info->stream, "%s%s",
-				   need_comma ? "," : "",
-				   mips_gpr_names[16]);
-	    if (smask > 1)
-	      (*info->fprintf_func) (info->stream, "-%s",
-				     mips_gpr_names[smask + 15]);
-	    need_comma = 1;
-	  }
-
-	if (l & 1)
-	  {
-	    (*info->fprintf_func) (info->stream, "%s%s",
-				   need_comma ? "," : "",
-				   mips_gpr_names[31]);
-	    need_comma = 1;
-	  }
-
-	if (amask == 5 || amask == 6)
-	  {
-	    (*info->fprintf_func) (info->stream, "%s$f0",
-				   need_comma ? "," : "");
-	    if (amask == 6)
-	      (*info->fprintf_func) (info->stream, "-$f1");
-	  }
-      }
-      break;
-
-    case 'm':
-    case 'M':
-      /* MIPS16e save/restore.  */
-      {
-      int need_comma = 0;
-      int amask, args, statics;
-      int nsreg, smask;
-      int framesz;
-      int i, j;
-
-      l = l & 0x7f;
-      if (use_extend)
-        l |= extend << 16;
-
-      amask = (l >> 16) & 0xf;
-      if (amask == MIPS16_ALL_ARGS)
-        {
-          args = 4;
-          statics = 0;
-        }
-      else if (amask == MIPS16_ALL_STATICS)
-        {
-          args = 0;
-          statics = 4;
-        }
-      else
-        {
-          args = amask >> 2;
-          statics = amask & 3;
-        }
-
-      if (args > 0) {
-          (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
-          if (args > 1)
-            (*info->fprintf_func) (info->stream, "-%s",
-                                   mips_gpr_names[4 + args - 1]);
-          need_comma = 1;
-      }
-
-      framesz = (((l >> 16) & 0xf0) | (l & 0x0f)) * 8;
-      if (framesz == 0 && !use_extend)
-        framesz = 128;
-
-      (*info->fprintf_func) (info->stream, "%s%d",
-                             need_comma ? "," : "",
-                             framesz);
-
-      if (l & 0x40)                   /* $ra */
-        (*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[31]);
-
-      nsreg = (l >> 24) & 0x7;
-      smask = 0;
-      if (l & 0x20)                   /* $s0 */
-        smask |= 1 << 0;
-      if (l & 0x10)                   /* $s1 */
-        smask |= 1 << 1;
-      if (nsreg > 0)                  /* $s2-$s8 */
-        smask |= ((1 << nsreg) - 1) << 2;
-
-      /* Find first set static reg bit.  */
-      for (i = 0; i < 9; i++)
-        {
-          if (smask & (1 << i))
-            {
-              (*info->fprintf_func) (info->stream, ",%s",
-                                     mips_gpr_names[i == 8 ? 30 : (16 + i)]);
-              /* Skip over string of set bits.  */
-              for (j = i; smask & (2 << j); j++)
-                continue;
-              if (j > i)
-                (*info->fprintf_func) (info->stream, "-%s",
-                                       mips_gpr_names[j == 8 ? 30 : (16 + j)]);
-              i = j + 1;
-            }
-        }
-
-      /* Statics $ax - $a3.  */
-      if (statics == 1)
-        (*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[7]);
-      else if (statics > 0)
-        (*info->fprintf_func) (info->stream, ",%s-%s",
-                               mips_gpr_names[7 - statics + 1],
-                               mips_gpr_names[7]);
-      }
-      break;
-
-    default:
-      /* xgettext:c-format */
-      (*info->fprintf_func)
-	(info->stream,
-	 _("# internal disassembler error, unrecognised modifier (%c)"),
-	 type);
-      abort ();
-    }
-}
-
-void
-print_mips_disassembler_options (FILE *stream)
-{
-  unsigned int i;
-
-  fprintf (stream, _("\n\
-The following MIPS specific disassembler options are supported for use\n\
-with the -M switch (multiple options should be separated by commas):\n"));
-
-  fprintf (stream, _("\n\
-  gpr-names=ABI            Print GPR names according to  specified ABI.\n\
-                           Default: based on binary being disassembled.\n"));
-
-  fprintf (stream, _("\n\
-  fpr-names=ABI            Print FPR names according to specified ABI.\n\
-                           Default: numeric.\n"));
-
-  fprintf (stream, _("\n\
-  cp0-names=ARCH           Print CP0 register names according to\n\
-                           specified architecture.\n\
-                           Default: based on binary being disassembled.\n"));
-
-  fprintf (stream, _("\n\
-  hwr-names=ARCH           Print HWR names according to specified\n\
-			   architecture.\n\
-                           Default: based on binary being disassembled.\n"));
-
-  fprintf (stream, _("\n\
-  reg-names=ABI            Print GPR and FPR names according to\n\
-                           specified ABI.\n"));
-
-  fprintf (stream, _("\n\
-  reg-names=ARCH           Print CP0 register and HWR names according to\n\
-                           specified architecture.\n"));
-
-  fprintf (stream, _("\n\
-  For the options above, the following values are supported for \"ABI\":\n\
-   "));
-  for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
-    fprintf (stream, " %s", mips_abi_choices[i].name);
-  fprintf (stream, _("\n"));
-
-  fprintf (stream, _("\n\
-  For the options above, The following values are supported for \"ARCH\":\n\
-   "));
-  for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
-    if (*mips_arch_choices[i].name != '\0')
-      fprintf (stream, " %s", mips_arch_choices[i].name);
-  fprintf (stream, _("\n"));
-
-  fprintf (stream, _("\n"));
-}
-#endif