Applied patch from Kazu Hirata <kazu@hxi.com> to fix disassembly of inc.l

and dec.l instructions

1 files changed, 50 insertions, 75 deletions

diff --git a/opcodes/h8300-dis.c b/opcodes/h8300-dis.c
index 435d4c0054e..180f60038b6 100644
--- a/opcodes/h8300-dis.c
+++ b/opcodes/h8300-dis.c
@@ -1,5 +1,5 @@
 /* Disassemble h8300 instructions.
-   Copyright (C) 1993, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1998, 2000 Free Software Foundation, Inc.
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -25,14 +25,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 
 /* Run through the opcodes and sort them into order to make them easy
-   to disassemble
- */
+   to disassemble.  */
 static void
 bfd_h8_disassemble_init ()
 {
   unsigned int i;
-
-
   struct h8_opcode *p;
 
   for (p = h8_opcodes; p->name; p++)
@@ -46,6 +43,7 @@ bfd_h8_disassemble_init ()
 	}
       else
 	n1 = 0;
+      
       if ((int) p->data.nib[1] < 16)
 	{
 	  n2 = (int) p->data.nib[1];
@@ -54,14 +52,15 @@ bfd_h8_disassemble_init ()
 	n2 = 0;
 
       /* Just make sure there are an even number of nibbles in it, and
-	 that the count is the same s the length */
+	 that the count is the same as the length.  */
       for (i = 0; p->data.nib[i] != E; i++)
 	/*EMPTY*/ ;
+      
       if (i & 1)
 	abort ();
+      
       p->length = i / 2;
     }
-
 }
 
 
@@ -71,24 +70,23 @@ bfd_h8_disassemble (addr, info, mode)
      disassemble_info *info;
      int mode;
 {
-  /* Find the first entry in the table for this opcode */
+  /* Find the first entry in the table for this opcode.  */
   static CONST char *regnames[] =
     {
       "r0h", "r1h", "r2h", "r3h", "r4h", "r5h", "r6h", "r7h",
-      "r0l", "r1l", "r2l", "r3l", "r4l", "r5l", "r6l", "r7l"};
-  
+      "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"
-      }
-  ;
+    };
 
   int rs = 0;
   int rd = 0;
@@ -101,7 +99,6 @@ bfd_h8_disassemble (addr, info, mode)
   char CONST **pregnames = mode != 0 ? lregnames : wregnames;
   int status;
   int l;
-  
   unsigned char data[20];  
   void *stream = info->stream;
   fprintf_ftype fprintf = info->fprintf_func;
@@ -112,20 +109,17 @@ bfd_h8_disassemble (addr, info, mode)
       init = 1;
     }
 
-  status = info->read_memory_func(addr, data, 2, info);
+  status = info->read_memory_func (addr, data, 2, info);
   if (status != 0) 
     {
-      info->memory_error_func(status, addr, info);
+      info->memory_error_func (status, addr, info);
       return -1;
     }
-  for (l = 2; status == 0 && l < 10; l+=2)
-    {
-      status = info->read_memory_func(addr+l, data+l, 2, info);
-    }
-  
   
+  for (l = 2; status == 0 && l < 10; l += 2)
+    status = info->read_memory_func(addr+l, data+l, 2, info);
 
-  /* Find the exact opcode/arg combo */
+  /* Find the exact opcode/arg combo.  */
   while (q->name)
     {
       op_type *nib;
@@ -142,20 +136,18 @@ bfd_h8_disassemble (addr, info, mode)
 	  
 	  if (looking_for < 16 && looking_for >=0) 
 	    {
-	      
 	      if (looking_for != thisnib) 
 		goto fail;
 	    }
-	  
 	  else 
 	    {
-	      
 	      if ((int) looking_for & (int) B31)
 		{
 		  if (! (((int) thisnib & 0x8) != 0)) 
 		    goto fail;
 		  looking_for = (op_type) ((int) looking_for & ~(int) B31);
 		}
+	      
 	      if ((int) looking_for & (int) B30)
 		{
 		  if (!(((int) thisnib & 0x8) == 0)) 
@@ -165,48 +157,43 @@ bfd_h8_disassemble (addr, info, mode)
 
 	      if (looking_for & DBIT)
 		{
-		  if ((looking_for & 5) != (thisnib & 5)) goto fail;
+		  if ((looking_for & 2) != (thisnib & 2))
+		    goto fail;
 		  abs = (thisnib & 0x8) ? 2 : 1;
 		}		  
-	      
 	      else if (looking_for & (REG | IND|INC|DEC))
 		{
 		  if (looking_for & SRC)
-		    {
-		      rs = thisnib;
-		    }
+		    rs = thisnib;
 		  else
-		    {
-		      rd = thisnib;
-		    }
+		    rd = thisnib;
 		}
 	      else if (looking_for & L_16)
 		{
 		  abs = (data[len >> 1]) * 256 + data[(len + 2) >> 1];
 		  plen = 16;
-	      
 		}
-	      else if(looking_for & ABSJMP)
+	      else if (looking_for & ABSJMP)
 		{
 		  abs =
 		    (data[1] << 16)
 		      | (data[2] << 8)
 			| (data[3]);
 		}
-	      else if(looking_for & MEMIND)
+	      else if (looking_for & MEMIND)
 		{
 		  abs = data[1];
 		}
 	      else if (looking_for & L_32)
 		{
 		  int i = len >> 1;
+		  
 		  abs = (data[i] << 24)
 		    | (data[i + 1] << 16)
 		      | (data[i + 2] << 8)
 			| (data[i+ 3]);
 
-		  plen =32;
-	      
+		  plen = 32;
 		}
 	      else if (looking_for & L_24)
 		{
@@ -216,7 +203,7 @@ bfd_h8_disassemble (addr, info, mode)
 		}
 	      else if (looking_for & IGNORE)
 		{
-		  
+		  ;
 		}
 	      else if (looking_for & DISPREG)
 		{
@@ -259,19 +246,14 @@ bfd_h8_disassemble (addr, info, mode)
 		}
 	      else if (looking_for == E)
 		{
+		  int i;
 
-		  {
-		    int i;
-
-		    for (i = 0; i < q->length; i++)
-		      {
-			fprintf (stream, "%02x ", data[i]);
-		      }
-		    for (; i < 6; i++)
-		      {
-			fprintf (stream, "   ");
-		      }
-		  }
+		  for (i = 0; i < q->length; i++)
+		    fprintf (stream, "%02x ", data[i]);
+		  
+		  for (; i < 6; i++)
+		    fprintf (stream, "   ");
+		  
 		  fprintf (stream, "%s\t", q->name);
 
 		  /* Gross.  Disgusting.  */
@@ -297,19 +279,18 @@ bfd_h8_disassemble (addr, info, mode)
 		      return q->length;
 		    }
 
-		  /* Fill in the args */
+		  /* Fill in the args.  */
 		  {
 		    op_type *args = q->args.nib;
 		    int hadone = 0;
 
-
 		    while (*args != E)
 		      {
 			int x = *args;
+			
 			if (hadone)
 			  fprintf (stream, ",");
 
-
 			if (x & L_3)
 			  {
 			    fprintf (stream, "#0x%x", (unsigned) bit);
@@ -325,6 +306,7 @@ bfd_h8_disassemble (addr, info, mode)
 			else if (x & REG)
 			  {
 			    int rn = (x & DST) ? rd : rs;
+			    
 			    switch (x & SIZE)
 			      {
 			      case L_8:
@@ -337,7 +319,6 @@ bfd_h8_disassemble (addr, info, mode)
 			      case L_32:
 				fprintf (stream, "%s", lregnames[rn]);
 				break;
-		    
 			      }
 			  }
 			else if (x & MACREG)
@@ -352,46 +333,41 @@ bfd_h8_disassemble (addr, info, mode)
 			  {
 			    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;
+				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
+			      {
+				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");
@@ -403,14 +379,13 @@ bfd_h8_disassemble (addr, info, mode)
 			else
 			  /* xgettext:c-format */
 			  fprintf (stream, _("Hmmmm %x"), x);
+			
 			hadone = 1;
 			args++;
 		      }
 		  }
 		  return q->length;
 		}
-
-      
 	      else
 		{
 		  /* xgettext:c-format */
@@ -426,7 +401,7 @@ bfd_h8_disassemble (addr, info, mode)
       q++;
     }
 
-  /* Fell of the end */
+  /* Fell of the end.  */
   fprintf (stream, "%02x %02x        .word\tH'%x,H'%x",
 	   data[0], data[1],
 	   data[0], data[1]);
@@ -435,24 +410,24 @@ bfd_h8_disassemble (addr, info, mode)
 
 int 
 print_insn_h8300 (addr, info)
-bfd_vma addr; 
-disassemble_info *info;
+     bfd_vma addr; 
+     disassemble_info *info;
 {
   return bfd_h8_disassemble (addr, info , 0);
 }
 
 int 
 print_insn_h8300h (addr, info)
-bfd_vma addr;
-disassemble_info *info;
+     bfd_vma addr;
+     disassemble_info *info;
 {
   return bfd_h8_disassemble (addr, info , 1);
 }
 
 int 
 print_insn_h8300s (addr, info)
-bfd_vma addr;
-disassemble_info *info;
+     bfd_vma addr;
+     disassemble_info *info;
 {
   return bfd_h8_disassemble (addr, info , 2);
 }