restore mcore files (Duh!)

1 files changed, 277 insertions, 0 deletions

diff --git a/opcodes/mcore-dis.c b/opcodes/mcore-dis.c
new file mode 100644
index 00000000000..7e3d45056b3
--- /dev/null
+++ b/opcodes/mcore-dis.c
@@ -0,0 +1,277 @@
+/* Disassemble Motorolla M*Core instructions.
+   Copyright (C) 1993, 1999 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
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program 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 program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include <stdio.h>
+#define STATIC_TABLE
+#define DEFINE_TABLE
+
+#include "mcore-opc.h"
+#include "dis-asm.h"
+
+/* Mask for each mcore_opclass: */
+static const unsigned short imsk[] =
+{
+    /* O0  */ 0xFFFF,
+    /* OT  */ 0xFFFC,
+    /* O1  */ 0xFFF0,
+    /* OC  */ 0xFFE0,
+    /* O2  */ 0xFF00,
+    /* X1  */ 0xFFF0,
+    /* OI  */ 0xFE00,
+    /* OB  */ 0xFE00,
+	      
+    /* OMa */ 0xFFF0,
+    /* SI  */ 0xFE00,
+    /* I7  */ 0xF800,
+    /* LS  */ 0xF000,
+    /* BR  */ 0xF800,
+    /* BL  */ 0xFF00,
+    /* LR  */ 0xF000,
+    /* LJ  */ 0xFF00,
+	      
+    /* RM  */ 0xFFF0,
+    /* RQ  */ 0xFFF0,
+    /* JSR */ 0xFFF0,
+    /* JMP */ 0xFFF0,
+    /* OBRa*/ 0xFFF0,
+    /* OBRb*/ 0xFF80,
+    /* OBRc*/ 0xFF00,
+    /* OBR2*/ 0xFE00,
+	      
+    /* O1R1*/ 0xFFF0,
+    /* OMb */ 0xFF80,
+    /* OMc */ 0xFF00,
+    /* SIa */ 0xFE00,
+
+/* start-sanitize-m340 */
+  /* MULSH */ 0xFF00,
+/* end-sanitize-m340 */
+		 
+    /* JC  */ 0,		/* JC,JU,JL don't appear in object */
+    /* JU  */ 0,
+    /* JL  */ 0,
+    /* RSI */ 0,
+    /* DO21*/ 0,
+    /* OB2 */ 0 		/* OB2 won't appear in object. */
+};
+
+static const char * grname[] =
+{
+ "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
+ "r8",  "r9", "r10", "r11", "r12", "r13", "r14", "r15"
+};
+
+static const char X[] = "??";
+
+static const char * crname[] =
+{
+  "psr",  "vbr", "epsr", "fpsr", "epc",  "fpc",  "ss0",  "ss1",
+  "ss2",  "ss3", "ss4",  "gcr",  "gsr",     X,      X,      X,
+     X,      X,      X,      X,      X,     X,      X,      X,
+     X,      X,      X,      X,      X,     X,      X,      X
+};
+
+static const unsigned isiz[] = { 2, 0, 1, 0 };
+
+int 
+print_insn_mcore (memaddr, info)
+     bfd_vma memaddr;
+     struct disassemble_info * info;
+{
+  unsigned char       ibytes[4];
+  fprintf_ftype       fprintf = info->fprintf_func;
+  void *              stream = info->stream;
+  unsigned short      inst;
+  mcore_opcode_info * op;
+  int                 status;
+
+  info->bytes_per_chunk = 2;
+
+  status = info->read_memory_func (memaddr, ibytes, 2, info);
+
+  if (status != 0) 
+    {
+      info->memory_error_func (status, memaddr, info);
+      return -1;
+    }
+
+/* start-sanitize-m340 */
+  if (info->endian == BFD_ENDIAN_BIG)
+/* end-sanitize-m340 */
+    inst = (ibytes[0] << 8) | ibytes[1];
+/* start-sanitize-m340 */
+  else if (info->endian == BFD_ENDIAN_LITTLE)
+    inst = (ibytes[1] << 8) | ibytes[0];
+  else
+    abort ();
+/* end-sanitize-m340 */
+
+  /* Just a linear search of the table.  */
+  for (op = mcore_table; op->name != 0; op ++)
+    if (op->inst == (inst & imsk[op->opclass]))
+      break;
+
+  if (op->name == 0)
+    fprintf (stream, ".word 0x%04x", inst);
+  else
+    {
+      const char * name = grname[inst & 0x0F];
+      
+      fprintf (stream, "%s", op->name);
+      
+      switch (op->opclass)
+	{
+	case O0: break;
+	case OT: fprintf (stream, "\t%d", inst & 0x3); break;
+	case O1:
+	case JMP:
+	case JSR: fprintf (stream, "\t%s", name); break;
+	case OC:  fprintf (stream, "\t%s, %s", name, crname[(inst >> 4) & 0x1F]); break;
+	case O1R1: fprintf (stream, "\t%s, r1", name); break;
+/* start-sanitize-m340 */
+	case MULSH:
+/* end-sanitize-m340 */
+	case O2: fprintf (stream, "\t%s, %s", name, grname[(inst >> 4) & 0xF]); break;
+	case X1: fprintf (stream, "\tr1, %s", name); break;
+	case OI: fprintf (stream, "\t%s, %d", name, ((inst >> 4) & 0x1F) + 1); break;
+	case RM: fprintf (stream, "\t%s-r15, (r0)", name); break;
+	case RQ: fprintf (stream, "\tr4-r7, (%s)", name); break;
+	case OB:
+	case OBRa:
+	case OBRb:
+	case OBRc:
+	case SI:
+	case SIa:
+	case OMa:
+	case OMb:
+	case OMc: fprintf (stream, "\t%s, %d", name, (inst >> 4) & 0x1F); break;
+	case I7: fprintf (stream, "\t%s, %d", name, (inst >> 4) & 0x7F); break;
+	case LS: fprintf (stream, "\t%s, (%s, %d)", grname[(inst >> 8) & 0xF],
+			  name, ((inst >> 4) & 0xF) << isiz[(inst >> 13) & 3]);
+	  break;
+	  
+	case BR:
+	  {
+	    long val = inst & 0x3FF;
+	    
+	    if (inst & 0x400)
+	      val |= 0xFFFFFC00;
+	    
+	    fprintf (stream, "\t0x%x", memaddr + 2 + (val<<1));
+	    
+	    if (strcmp (op->name, "bsr") == 0)
+	      {
+		/* for bsr, we'll try to get a symbol for the target */
+		val = memaddr + 2 + (val << 1);
+		
+		if (info->print_address_func && val != 0)
+		  {
+		    fprintf (stream, "\t// ");
+		    info->print_address_func (val, info);
+		  }
+	      }
+	  }
+	  break;
+	  
+	case BL:
+	  {
+	    long val;
+	    val = (inst & 0x000F);
+	    fprintf (stream, "\t%s, 0x%x",
+		    grname[(inst >> 4) & 0xF], memaddr - (val << 1));
+	  }
+	  break;
+	  
+	case LR:
+	  {
+	    unsigned long val;
+	    
+	    val = (memaddr + 2 + ((inst & 0xFF) << 2)) & 0xFFFFFFFC;
+	    
+	    status = info->read_memory_func (val, ibytes, 4, info);
+	    if (status != 0) 
+	      {
+		info->memory_error_func (status, memaddr, info);
+		break;
+	      }
+	    
+/* start-sanitize-m340 */
+	    if (info->endian == BFD_ENDIAN_LITTLE)
+	      val = (ibytes[3] << 24) | (ibytes[2] << 16)
+		| (ibytes[1] << 8) | (ibytes[0]);
+	    else
+/* end-sanitize-m340 */
+	      val = (ibytes[0] << 24) | (ibytes[1] << 16)
+		| (ibytes[2] << 8) | (ibytes[3]);
+	    
+	    /* Removed [] around literal value to match ABI syntax 12/95.  */
+	    fprintf (stream, "\t%s, 0x%X", grname[(inst >> 8) & 0xF], val);
+
+	    if (val == 0)
+	      fprintf (stream, "\t// from address pool at 0x%x",
+		       (memaddr + 2 + ((inst & 0xFF) << 2)) & 0xFFFFFFFC);
+	  }
+	  break;
+	  
+	case LJ:
+	  {
+	    unsigned long val;
+	    
+	    val = (memaddr + 2 + ((inst & 0xFF) << 2)) & 0xFFFFFFFC;
+	    
+	    status = info->read_memory_func (val, ibytes, 4, info);
+	    if (status != 0) 
+	      {
+		info->memory_error_func (status, memaddr, info);
+		break;
+	      }
+
+/* start-sanitize-m340 */
+	    if (info->endian == BFD_ENDIAN_LITTLE)
+	      val = (ibytes[3] << 24) | (ibytes[2] << 16)
+		| (ibytes[1] << 8) | (ibytes[0]);
+	    else
+/* end-sanitize-m340 */
+	      val = (ibytes[0] << 24) | (ibytes[1] << 16)
+		| (ibytes[2] << 8) | (ibytes[3]);
+	    
+	    /* Removed [] around literal value to match ABI syntax 12/95.  */
+	    fprintf (stream, "\t0x%X", val);
+	    /* For jmpi/jsri, we'll try to get a symbol for the target.  */
+	    if (info->print_address_func && val != 0)
+	      {
+		fprintf (stream, "\t// ");
+		info->print_address_func (val, info);
+	      }
+	    else
+	      {
+		fprintf (stream, "\t// from address pool at 0x%x",
+			 (memaddr + 2 + ((inst & 0xFF) << 2)) & 0xFFFFFFFC);
+	      }
+	  }
+	  break;
+	  
+	default:
+	  /* if the disassembler lags the instruction set */
+	  fprintf (stream, "\tundecoded operands, inst is 0x%04x", inst);
+	  break;
+	}
+    }
+  
+  /* Say how many bytes we consumed? */
+  return 2;
+}