2003-06-03 Michael Snyder <msnyder@redhat.com>

	and Bernd Schmidt   <bernds@redhat.com>
	and Alexandre Oliva <aoliva@redhat.com>
	* disassemble.c (disassembler): Add support for h8300sx.
	* h8300-dis.c: Ditto.

1 files changed, 532 insertions, 190 deletions

diff --git a/opcodes/h8300-dis.c b/opcodes/h8300-dis.c
index 2a3cd218f47..299267f4605 100644
--- a/opcodes/h8300-dis.c
+++ b/opcodes/h8300-dis.c
@@ -1,5 +1,5 @@
 /* Disassemble h8300 instructions.
-   Copyright 1993, 1994, 1996, 1998, 2000, 2001, 2002
+   Copyright 1993, 1994, 1996, 1998, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
 This program is free software; you can redistribute it and/or modify
@@ -34,11 +34,39 @@ struct h8_instruction
 struct h8_instruction *h8_instructions;
 
 static void bfd_h8_disassemble_init PARAMS ((void));
-static unsigned int bfd_h8_disassemble
-  PARAMS ((bfd_vma, disassemble_info *, int));
+static void print_one_arg PARAMS ((disassemble_info *, bfd_vma, op_type,
+				   int, int, int, int, const char **, int));
+static unsigned int bfd_h8_disassemble PARAMS ((bfd_vma, 
+						disassemble_info *, 
+						int));
+static void extract_immediate PARAMS ((FILE *, 
+				       op_type, int, 
+				       unsigned char *,
+				       int *, int *,
+				       const struct h8_opcode *));
+
+static void print_colon_thingie PARAMS ((op_type *));
+
+static void
+print_colon_thingie (op_type *nib)
+{
+  switch (*nib & SIZE) {
+  case L_2:	fprintf (stdout, "2");	break;
+  case L_3:
+  case L_3NZ:	fprintf (stdout, "3");	break;
+  case L_4:	fprintf (stdout, "4");	break;
+  case L_5:	fprintf (stdout, "5");	break;
+  case L_8:	fprintf (stdout, "8");	break;
+  case L_16:
+  case L_16U:	fprintf (stdout, "16");	break;
+  case L_24:	fprintf (stdout, "24");	break;
+  case L_32:	fprintf (stdout, "32");	break;
+  }
+}
 
 /* Run through the opcodes and sort them into order to make them easy
    to disassemble.  */
+
 static void
 bfd_h8_disassemble_init ()
 {
@@ -69,11 +97,14 @@ bfd_h8_disassemble_init ()
 
       /* Just make sure there are an even number of nibbles in it, and
 	 that the count is the same as the length.  */
-      for (i = 0; p->data.nib[i] != E; i++)
+      for (i = 0; p->data.nib[i] != (op_type) E; i++)
 	;
 
       if (i & 1)
-	abort ();
+	{
+	  fprintf (stderr, "Internal error, h8_disassemble_init.\n");
+	  abort ();
+	}
 
       pi->length = i / 2;
       pi->opcode = p;
@@ -84,42 +115,287 @@ bfd_h8_disassemble_init ()
   pi->opcode = p;
 }
 
-static unsigned int
-bfd_h8_disassemble (addr, info, mode)
-     bfd_vma addr;
+static void
+extract_immediate (stream, looking_for, thisnib, data, cst, len, q)
+     FILE *stream;
+     op_type looking_for;
+     int thisnib;
+     unsigned char *data;
+     int *cst, *len;
+     const struct h8_opcode *q;
+{
+  switch (looking_for & SIZE)
+    {
+    case L_2:
+      *len = 2;
+      *cst = thisnib & 3;
+
+      /* DISP2 special treatment.  */
+      if ((looking_for & MODE) == DISP)
+	{
+	  if (OP_KIND (q->how) == O_MOVAB ||
+	      OP_KIND (q->how) == O_MOVAW ||
+	      OP_KIND (q->how) == O_MOVAL)
+	    {
+	      /* Handling for mova insn.  */
+	      switch (q->args.nib[0] & MODE) {
+	      case INDEXB:
+	      default:
+		break;
+	      case INDEXW:
+		*cst *= 2;
+		break;
+	      case INDEXL:
+		*cst *= 4;
+		break;
+	      }
+	    }
+	  else
+	    {
+	      /* Handling for non-mova insn.  */
+	      switch (OP_SIZE (q->how)) {
+	      default: break;
+	      case SW:
+		*cst *= 2;
+		break;
+	      case SL:
+		*cst *= 4;
+		break;
+	      }
+	    }
+	}
+      break;
+    case L_8:
+      *len = 8;
+      *cst = data[0];
+      break;
+    case L_16:
+    case L_16U:
+      *len = 16;
+      *cst = (data[0] << 8) + data [1];
+#if 0
+      if ((looking_for & SIZE) == L_16)
+	*cst = (short) *cst;	/* sign extend */
+#endif
+      break;
+    case L_32:
+      *len = 32;
+      *cst = (data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3];
+      break;
+    default:
+      *len = 0;
+      *cst = 0;
+      fprintf (stream, "DISP bad size\n");
+      break;
+    }
+}
+
+static const char *regnames[] =
+{
+  "r0h", "r1h", "r2h", "r3h", "r4h", "r5h", "r6h", "r7h",
+  "r0l", "r1l", "r2l", "r3l", "r4l", "r5l", "r6l", "r7l"
+};
+static const char *wregnames[] =
+{
+  "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+  "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7"
+};
+static const char *lregnames[] =
+{
+  "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7",
+  "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7"
+};
+static const char *cregnames[] =
+{
+  "ccr", "exr", "mach", "macl", "", "", "vbr", "sbr"
+};
+
+static void
+print_one_arg (info, addr, x, cst, cstlen, rdisp_n, rn, pregnames, len)
      disassemble_info *info;
-     int mode;
+     bfd_vma addr;
+     op_type x;
+     int cst, cstlen, rdisp_n, rn;
+     const char **pregnames;
+     int len;
 {
-  /* Find the first entry in the table for this opcode.  */
-  static const char *regnames[] =
+  void *stream = info->stream;
+  fprintf_ftype outfn = info->fprintf_func;
+
+  if ((x & SIZE) == L_3 ||
+      (x & SIZE) == L_3NZ)
+    {
+      outfn (stream, "#0x%x", (unsigned) cst);
+    }
+  else if ((x & MODE) == IMM)
+    {
+      outfn (stream, "#0x%x", (unsigned) cst);
+    }
+  else if ((x & MODE) == DBIT  ||
+	   (x & MODE) == KBIT)
+    {
+      outfn (stream, "#%d", (unsigned) cst);
+    }
+  else if ((x & MODE) == CONST_2)
+    outfn (stream, "#2");
+  else if ((x & MODE) == CONST_4)
+    outfn (stream, "#4");
+  else if ((x & MODE) == CONST_8)
+    outfn (stream, "#8");
+  else if ((x & MODE) == CONST_16)
+    outfn (stream, "#16");
+  else if ((x & MODE) == REG)
+    {
+      switch (x & SIZE)
+	{
+	case L_8:
+	  outfn (stream, "%s", regnames[rn]);
+	  break;
+	case L_16:
+	case L_16U:
+	  outfn (stream, "%s", wregnames[rn]);
+	  break;
+	case L_P:
+	case L_32:
+	  outfn (stream, "%s", lregnames[rn]);
+	  break;
+	}
+    }
+  else if ((x & MODE) == LOWREG)
+    {
+      switch (x & SIZE)
+	{
+	case L_8:
+	  /* Always take low half of reg.  */
+	  outfn (stream, "%s.b", regnames[rn < 8 ? rn + 8 : rn]);
+	  break;
+	case L_16:
+	case L_16U:
+	  /* Always take low half of reg.  */
+	  outfn (stream, "%s.w", wregnames[rn < 8 ? rn : rn - 8]);
+	  break;
+	case L_P:
+	case L_32:
+	  outfn (stream, "%s.l", lregnames[rn]);
+	  break;
+	}
+    }
+  else if ((x & MODE) == POSTINC)
+    {
+      outfn (stream, "@%s+", pregnames[rn]);
+    }
+  else if ((x & MODE) == POSTDEC)
+    {
+      outfn (stream, "@%s-", pregnames[rn]);
+    }
+  else if ((x & MODE) == PREINC)
+    {
+      outfn (stream, "@+%s", pregnames[rn]);
+    }
+  else if ((x & MODE) == PREDEC)
+    {
+      outfn (stream, "@-%s", pregnames[rn]);
+    }
+  else if ((x & MODE) == IND)
+    {
+      outfn (stream, "@%s", pregnames[rn]);
+    }
+  else if ((x & MODE) == ABS || (x & ABSJMP))
+    {
+      outfn (stream, "@0x%x:%d", (unsigned) cst, cstlen);
+    }
+  else if ((x & MODE) == MEMIND)
+    {
+      outfn (stream, "@@%d (0x%x)", cst, cst);
+    }
+  else if ((x & MODE) == VECIND)
+    {
+      /* FIXME Multiplier should be 2 or 4, depending on processor mode,
+	 by which is meant "normal" vs. "middle", "advanced", "maximum".  */
+
+      int offset = (cst + 0x80) * 4;
+      outfn (stream, "@@%d (0x%x)", offset, offset);
+    }
+  else if ((x & MODE) == PCREL)
+    {
+      if ((x & SIZE) == L_16 ||
+	  (x & SIZE) == L_16U)
+	{
+	  outfn (stream, ".%s%d (0x%x)",
+		   (short) cst > 0 ? "+" : "",
+		   (short) cst, 
+		   addr + (short) cst + len);
+	}
+      else
+	{
+	  outfn (stream, ".%s%d (0x%x)",
+		   (char) cst > 0 ? "+" : "",
+		   (char) cst, 
+		   addr + (char) cst + len);
+	}
+    }
+  else if ((x & MODE) == DISP)
+    {
+      outfn (stream, "@(0x%x:%d,%s)", cst, cstlen, 
+	       pregnames[rdisp_n]);
+    }
+  else if ((x & MODE) == INDEXB)
+    {
+      /* Always take low half of reg.  */
+      outfn (stream, "@(0x%x:%d,%s.b)", cst, cstlen, 
+	     regnames[rdisp_n < 8 ? rdisp_n + 8 : rdisp_n]);
+    }
+  else if ((x & MODE) == INDEXW)
     {
-      "r0h", "r1h", "r2h", "r3h", "r4h", "r5h", "r6h", "r7h",
-      "r0l", "r1l", "r2l", "r3l", "r4l", "r5l", "r6l", "r7l"
-    };
-  static const char *wregnames[] =
+      /* Always take low half of reg.  */
+      outfn (stream, "@(0x%x:%d,%s.w)", cst, cstlen, 
+	       wregnames[rdisp_n < 8 ? rdisp_n : rdisp_n - 8]);
+    }
+  else if ((x & MODE) == INDEXL)
     {
-      "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
-      "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7"
-    };
-  static const char *lregnames[] =
+      outfn (stream, "@(0x%x:%d,%s.l)", cst, cstlen, 
+	       lregnames[rdisp_n]);
+    }
+  else if (x & CTRL)
     {
-      "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7",
-      "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7"
-    };
-  int rs = 0;
-  int rd = 0;
-  int rdisp = 0;
-  int abs = 0;
-  int bit = 0;
-  int plen = 0;
+      outfn (stream, cregnames[rn]);
+    }
+  else if ((x & MODE) == CCR)
+    {
+      outfn (stream, "ccr");
+    }
+  else if ((x & MODE) == EXR)
+    {
+      outfn (stream, "exr");
+    }
+  else if ((x & MODE) == MACREG)
+    {
+      outfn (stream, "mac%c", cst ? 'l' : 'h');
+    }
+  else
+    /* xgettext:c-format */
+    outfn (stream, _("Hmmmm 0x%x"), x);
+}
+
+static unsigned int
+bfd_h8_disassemble (addr, info, mach)
+     bfd_vma addr;
+     disassemble_info *info;
+     int mach;
+{
+  /* Find the first entry in the table for this opcode.  */
+  int regno[3] = { 0, 0, 0 };
+  int dispregno[3] = { 0, 0, 0 };
+  int cst[3] = { 0, 0, 0 };
+  int cstlen[3] = { 0, 0, 0 };
   static bfd_boolean init = 0;
   const struct h8_instruction *qi;
-  char const **pregnames = mode != 0 ? lregnames : wregnames;
+  char const **pregnames = mach != 0 ? lregnames : wregnames;
   int status;
-  int l;
-  unsigned char data[20];
+  unsigned int l;
+  unsigned char data[MAX_CODE_NIBBLES];
   void *stream = info->stream;
-  fprintf_ftype fprintf = info->fprintf_func;
+  fprintf_ftype outfn = info->fprintf_func;
 
   if (!init)
     {
@@ -134,7 +410,7 @@ bfd_h8_disassemble (addr, info, mode)
       return -1;
     }
 
-  for (l = 2; status == 0 && l < 10; l += 2)
+  for (l = 2; status == 0 && l < sizeof (data) / 2; l += 2)
     status = info->read_memory_func (addr + l, data + l, 2, info);
 
   /* Find the exact opcode/arg combo.  */
@@ -147,9 +423,12 @@ bfd_h8_disassemble (addr, info, mode)
       while (1)
 	{
 	  op_type looking_for = *nib;
-	  int thisnib = data[len >> 1];
+	  int thisnib = data[len / 2];
+	  int opnr;
 
-	  thisnib = (len & 1) ? (thisnib & 0xf) : ((thisnib >> 4) & 0xf);
+	  thisnib = (len & 1) ? (thisnib & 0xf) : ((thisnib / 16) & 0xf);
+	  opnr = ((looking_for & OP3) == OP3 ? 2
+		  : (looking_for & DST) == DST ? 1 : 0);
 
 	  if (looking_for < 16 && looking_for >= 0)
 	    {
@@ -160,21 +439,78 @@ bfd_h8_disassemble (addr, info, mode)
 	    {
 	      if ((int) looking_for & (int) B31)
 		{
-		  if (!(((int) thisnib & 0x8) != 0))
+		  if (!((thisnib & 0x8) != 0))
 		    goto fail;
 
 		  looking_for = (op_type) ((int) looking_for & ~(int) B31);
+		  thisnib &= 0x7;
 		}
-
-	      if ((int) looking_for & (int) B30)
+	      else if ((int) looking_for & (int) B30)
 		{
-		  if (!(((int) thisnib & 0x8) == 0))
+		  if (!((thisnib & 0x8) == 0))
 		    goto fail;
 
 		  looking_for = (op_type) ((int) looking_for & ~(int) B30);
 		}
 
-	      if (looking_for & DBIT)
+	      if ((int) looking_for & (int) B21)
+		{
+		  if (!((thisnib & 0x4) != 0))
+		    goto fail;
+
+		  looking_for = (op_type) ((int) looking_for & ~(int) B21);
+		  thisnib &= 0xb;
+		}
+	      else if ((int) looking_for & (int) B20)
+		{
+		  if (!((thisnib & 0x4) == 0))
+		    goto fail;
+
+		  looking_for = (op_type) ((int) looking_for & ~(int) B20);
+		}
+	      if ((int) looking_for & (int) B11)
+		{
+		  if (!((thisnib & 0x2) != 0))
+		    goto fail;
+
+		  looking_for = (op_type) ((int) looking_for & ~(int) B11);
+		  thisnib &= 0xd;
+		}
+	      else if ((int) looking_for & (int) B10)
+		{
+		  if (!((thisnib & 0x2) == 0))
+		    goto fail;
+
+		  looking_for = (op_type) ((int) looking_for & ~(int) B10);
+		}
+
+	      if ((int) looking_for & (int) B01)
+		{
+		  if (!((thisnib & 0x1) != 0))
+		    goto fail;
+
+		  looking_for = (op_type) ((int) looking_for & ~(int) B01);
+		  thisnib &= 0xe;
+		}
+	      else if ((int) looking_for & (int) B00)
+		{
+		  if (!((thisnib & 0x1) == 0))
+		    goto fail;
+
+		  looking_for = (op_type) ((int) looking_for & ~(int) B00);
+		}
+
+	      if (looking_for & IGNORE)
+		{
+		  /* Hitachi has declared that IGNORE must be zero.  */
+		  if (thisnib != 0)
+		    goto fail;
+		}
+	      else if ((looking_for & MODE) == DATA)
+		{
+		  ;			/* Skip embedded data.  */
+		}
+	      else if ((looking_for & MODE) == DBIT)
 		{
 		  /* Exclude adds/subs by looking at bit 0 and 2, and
                      make sure the operand size, either w or l,
@@ -182,45 +518,98 @@ bfd_h8_disassemble (addr, info, mode)
 		  if ((looking_for & 7) != (thisnib & 7))
 		    goto fail;
 
-		  abs = (thisnib & 0x8) ? 2 : 1;
+		  cst[opnr] = (thisnib & 0x8) ? 2 : 1;
 		}
-	      else if (looking_for & (REG | IND | INC | DEC))
+	      else if ((looking_for & MODE) == DISP  ||
+		       (looking_for & MODE) == ABS   ||
+		       (looking_for & MODE) == PCREL ||
+		       (looking_for & MODE) == INDEXB ||
+		       (looking_for & MODE) == INDEXW ||
+		       (looking_for & MODE) == INDEXL)
 		{
-		  if (looking_for & SRC)
-		    rs = thisnib;
-		  else
-		    rd = thisnib;
+		  extract_immediate (stream, looking_for, thisnib, 
+				     data + len / 2, cst + opnr, 
+				     cstlen + opnr, q);
+		  /* Even address == bra, odd == bra/s.  */
+		  if (q->how == O (O_BRAS, SB))
+		    cst[opnr] -= 1;
 		}
-	      else if (looking_for & L_16)
+	      else if ((looking_for & MODE) == REG     ||
+		       (looking_for & MODE) == LOWREG  ||
+		       (looking_for & MODE) == IND     ||
+		       (looking_for & MODE) == PREINC  ||
+		       (looking_for & MODE) == POSTINC ||
+		       (looking_for & MODE) == PREDEC  ||
+		       (looking_for & MODE) == POSTDEC)
 		{
-		  abs = (data[len >> 1]) * 256 + data[(len + 2) >> 1];
-		  plen = 16;
+		  regno[opnr] = thisnib;
 		}
-	      else if (looking_for & ABSJMP)
+	      else if (looking_for & CTRL)	/* Control Register */
 		{
-		  abs = (data[1] << 16) | (data[2] << 8) | (data[3]);
+		  thisnib &= 7;
+		  if (((looking_for & MODE) == CCR  && (thisnib != C_CCR))  ||
+		      ((looking_for & MODE) == EXR  && (thisnib != C_EXR))  ||
+		      ((looking_for & MODE) == MACH && (thisnib != C_MACH)) ||
+		      ((looking_for & MODE) == MACL && (thisnib != C_MACL)) ||
+		      ((looking_for & MODE) == VBR  && (thisnib != C_VBR))  ||
+		      ((looking_for & MODE) == SBR  && (thisnib != C_SBR)))
+		    goto fail;
+		  if (((looking_for & MODE) == CCR_EXR && 
+		       (thisnib != C_CCR && thisnib != C_EXR)) ||
+		      ((looking_for & MODE) == VBR_SBR && 
+		       (thisnib != C_VBR && thisnib != C_SBR)) ||
+		      ((looking_for & MODE) == MACREG && 
+		       (thisnib != C_MACH && thisnib != C_MACL)))
+		    goto fail;
+		  if (((looking_for & MODE) == CC_EX_VB_SB && 
+		       (thisnib != C_CCR && thisnib != C_EXR &&
+			thisnib != C_VBR && thisnib != C_SBR)))
+		    goto fail;
+
+		  regno[opnr] = thisnib;
+		}
+	      else if ((looking_for & SIZE) == L_5)
+		{
+		  cst[opnr] = data[len / 2] & 31;
+		  cstlen[opnr] = 5;
+		}
+	      else if ((looking_for & SIZE) == L_4)
+		{
+		  cst[opnr] = thisnib;
+		  cstlen[opnr] = 4;
+		}
+	      else if ((looking_for & SIZE) == L_16 ||
+		       (looking_for & SIZE) == L_16U)
+		{
+		  cst[opnr] = (data[len / 2]) * 256 + data[(len + 2) / 2];
+		  cstlen[opnr] = 16;
+		}
+	      else if ((looking_for & MODE) == MEMIND)
+		{
+		  cst[opnr] = data[1];
 		}
-	      else if (looking_for & MEMIND)
+	      else if ((looking_for & MODE) == VECIND)
 		{
-		  abs = data[1];
+		  cst[opnr] = data[1] & 0x7f;
 		}
-	      else if (looking_for & L_32)
+	      else if ((looking_for & SIZE) == L_32)
 		{
-		  int i = len >> 1;
+		  int i = len / 2;
 
-		  abs = (data[i] << 24)
-		    | (data[i + 1] << 16)
-		    | (data[i + 2] << 8)
-		    | (data[i + 3]);
+		  cst[opnr] = ((data[i] << 24) 
+			       | (data[i + 1] << 16) 
+			       | (data[i + 2] << 8)
+			       | (data[i + 3]));
 
-		  plen = 32;
+		  cstlen[opnr] = 32;
 		}
-	      else if (looking_for & L_24)
+	      else if ((looking_for & SIZE) == L_24)
 		{
-		  int i = len >> 1;
+		  int i = len / 2;
 
-		  abs = (data[i] << 16) | (data[i + 1] << 8) | (data[i + 2]);
-		  plen = 24;
+		  cst[opnr] = 
+		    (data[i] << 16) | (data[i + 1] << 8) | (data[i + 2]);
+		  cstlen[opnr] = 24;
 		}
 	      else if (looking_for & IGNORE)
 		{
@@ -228,64 +617,67 @@ bfd_h8_disassemble (addr, info, mode)
 		}
 	      else if (looking_for & DISPREG)
 		{
-		  rdisp = thisnib;
+		  dispregno[opnr] = thisnib & 7;
 		}
-	      else if (looking_for & KBIT)
+	      else if ((looking_for & MODE) == KBIT)
 		{
 		  switch (thisnib)
 		    {
 		    case 9:
-		      abs = 4;
+		      cst[opnr] = 4;
 		      break;
 		    case 8:
-		      abs = 2;
+		      cst[opnr] = 2;
 		      break;
 		    case 0:
-		      abs = 1;
+		      cst[opnr] = 1;
 		      break;
 		    default:
 		      goto fail;
 		    }
 		}
-	      else if (looking_for & L_8)
+	      else if ((looking_for & SIZE) == L_8)
 		{
-		  plen = 8;
-		  abs = data[len >> 1];
+		  cstlen[opnr] = 8;
+		  cst[opnr] = data[len / 2];
 		}
-	      else if (looking_for & L_3)
+	      else if ((looking_for & SIZE) == L_3 ||
+		       (looking_for & SIZE) == L_3NZ)
 		{
-		  bit = thisnib & 0x7;
+		  cst[opnr] = thisnib & 0x7;
+		  if (cst[opnr] == 0 && (looking_for & SIZE) == L_3NZ)
+		    goto fail;
 		}
-	      else if (looking_for & L_2)
+	      else if ((looking_for & SIZE) == L_2)
 		{
-		  plen = 2;
-		  abs = thisnib & 0x3;
+		  cstlen[opnr] = 2;
+		  cst[opnr] = thisnib & 0x3;
 		}
-	      else if (looking_for & MACREG)
+	      else if ((looking_for & MODE) == MACREG)
 		{
-		  abs = (thisnib == 3);
+		  cst[opnr] = (thisnib == 3);
 		}
-	      else if (looking_for == E)
+	      else if (looking_for == (op_type) E)
 		{
 		  int i;
 
 		  for (i = 0; i < qi->length; i++)
-		    fprintf (stream, "%02x ", data[i]);
+		    outfn (stream, "%02x ", data[i]);
 
 		  for (; i < 6; i++)
-		    fprintf (stream, "   ");
+		    outfn (stream, "   ");
 
-		  fprintf (stream, "%s\t", q->name);
+		  outfn (stream, "%s\t", q->name);
 
 		  /* Gross.  Disgusting.  */
 		  if (strcmp (q->name, "ldm.l") == 0)
 		    {
 		      int count, high;
 
-		      count = (data[1] >> 4) & 0x3;
-		      high = data[3] & 0x7;
+		      count = (data[1] / 16) & 0x3;
+		      high = regno[1];
 
-		      fprintf (stream, "@sp+,er%d-er%d", high - count, high);
+		      outfn (stream, "@sp+,er%d-er%d", high - count, high);
 		      return qi->length;
 		    }
 
@@ -293,121 +685,71 @@ bfd_h8_disassemble (addr, info, mode)
 		    {
 		      int count, low;
 
-		      count = (data[1] >> 4) & 0x3;
-		      low = data[3] & 0x7;
+		      count = (data[1] / 16) & 0x3;
+		      low = regno[0];
 
-		      fprintf (stream, "er%d-er%d,@-sp", low, low + count);
+		      outfn (stream, "er%d-er%d,@-sp", low, low + count);
+		      return qi->length;
+		    }
+		  if (strcmp (q->name, "rte/l") == 0
+		      || strcmp (q->name, "rts/l") == 0)
+		    {
+		      if (regno[0] == 0)
+			outfn (stream, "er%d", regno[1]);
+		      else
+			{
+			  outfn (stream, "(er%d-er%d)", regno[1] - regno[0],
+				 regno[1]);
+			}
+		      return qi->length;
+		    }
+		  if (strncmp (q->name, "mova", 4) == 0)
+		    {
+		      op_type *args = q->args.nib;
+
+		      if (args[1] == (op_type) E)
+			{
+			  /* Short form.  */
+			  print_one_arg (info, addr, args[0], cst[0], 
+					 cstlen[0], dispregno[0], regno[0], 
+					 pregnames, qi->length);
+			  outfn (stream, ",er%d", dispregno[0]);
+			}
+		      else
+			{
+			  outfn (stream, "@(0x%x:%d,", cst[0], cstlen[0]);
+			  print_one_arg (info, addr, args[1], cst[1], 
+					 cstlen[1], dispregno[1], regno[1], 
+					 pregnames, qi->length);
+			  outfn (stream, ".%c),",
+				 (args[0] & MODE) == INDEXB ? 'b' : 'w');
+			  print_one_arg (info, addr, args[2], cst[2], 
+					 cstlen[2], dispregno[2], regno[2], 
+					 pregnames, qi->length);
+			}
 		      return qi->length;
 		    }
-
 		  /* Fill in the args.  */
 		  {
 		    op_type *args = q->args.nib;
 		    int hadone = 0;
+		    int nargs;
 
-		    while (*args != E)
+		    for (nargs = 0; 
+			 nargs < 3 && args[nargs] != (op_type) E; 
+			 nargs++)
 		      {
-			int x = *args;
+			int x = args[nargs];
 
 			if (hadone)
-			  fprintf (stream, ",");
-
-			if (x & L_3)
-			  {
-			    fprintf (stream, "#0x%x", (unsigned) bit);
-			  }
-			else if (x & (IMM | KBIT | DBIT))
-			  {
-			    /* Bletch.  For shal #2,er0 and friends.  */
-			    if (*(args + 1) & SRC_IN_DST)
-			      abs = 2;
-
-			    fprintf (stream, "#0x%x", (unsigned) abs);
-			  }
-			else if (x & REG)
-			  {
-			    int rn = (x & DST) ? rd : rs;
-
-			    switch (x & SIZE)
-			      {
-			      case L_8:
-				fprintf (stream, "%s", regnames[rn]);
-				break;
-			      case L_16:
-				fprintf (stream, "%s", wregnames[rn]);
-				break;
-			      case L_P:
-			      case L_32:
-				fprintf (stream, "%s", lregnames[rn]);
-				break;
-			      }
-			  }
-			else if (x & MACREG)
-			  {
-			    fprintf (stream, "mac%c", abs ? 'l' : 'h');
-			  }
-			else if (x & INC)
-			  {
-			    fprintf (stream, "@%s+", pregnames[rs]);
-			  }
-			else if (x & DEC)
-			  {
-			    fprintf (stream, "@-%s", pregnames[rd]);
-			  }
-			else if (x & IND)
-			  {
-			    int rn = (x & DST) ? rd : rs;
-			    fprintf (stream, "@%s", pregnames[rn]);
-			  }
-			else if (x & ABS8MEM)
-			  {
-			    fprintf (stream, "@0x%x:8", (unsigned) abs);
-			  }
-			else if (x & (ABS | ABSJMP))
-			  {
-			    fprintf (stream, "@0x%x:%d", (unsigned) abs, plen);
-			  }
-			else if (x & MEMIND)
-			  {
-			    fprintf (stream, "@@%d (%x)", abs, abs);
-			  }
-			else if (x & PCREL)
-			  {
-			    if (x & L_16)
-			      {
-				abs += 2;
-				fprintf (stream,
-					 ".%s%d (%x)",
-					 (short) abs > 0 ? "+" : "",
-					 (short) abs, addr + (short) abs + 2);
-			      }
-			    else
-			      {
-				fprintf (stream,
-					 ".%s%d (%x)",
-					 (char) abs > 0 ? "+" : "",
-					 (char) abs, addr + (char) abs + 2);
-			      }
-			  }
-			else if (x & DISP)
-			  {
-			    fprintf (stream, "@(0x%x:%d,%s)",
-				     abs, plen, pregnames[rdisp]);
-			  }
-			else if (x & CCR)
-			  {
-			    fprintf (stream, "ccr");
-			  }
-			else if (x & EXR)
-			  {
-			    fprintf (stream, "exr");
-			  }
-			else
-			  /* xgettext:c-format */
-			  fprintf (stream, _("Hmmmm %x"), x);
+			  outfn (stream, ",");
+
+			print_one_arg (info, addr, x,
+				       cst[nargs], cstlen[nargs],
+				       dispregno[nargs], regno[nargs],
+				       pregnames, qi->length);
 
 			hadone = 1;
-			args++;
 		      }
 		  }
 
@@ -415,7 +757,7 @@ bfd_h8_disassemble (addr, info, mode)
 		}
 	      else
 		/* xgettext:c-format */
-		fprintf (stream, _("Don't understand %x \n"), looking_for);
+		outfn (stream, _("Don't understand 0x%x \n"), looking_for);
 	    }
 
 	  len++;
@@ -427,7 +769,7 @@ bfd_h8_disassemble (addr, info, mode)
     }
 
   /* Fell off the end.  */
-  fprintf (stream, "%02x %02x        .word\tH'%x,H'%x",
+  outfn (stream, "%02x %02x        .word\tH'%x,H'%x",
 	   data[0], data[1],
 	   data[0], data[1]);
   return 2;