start-sanitize-d10v

        Wed Jul 17 14:39:05 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
        * configure: (bfd_d10v_arch) Add new case.
        * configure.in: (bfd_d10v_arch) Add new case.
        * d10v-dis.c: New file.
        * d10v-opc.c: New file.
        * disassemble.c (disassembler) Add entry for d10v.
end-sanitize-d10v

1 files changed, 238 insertions, 0 deletions

diff --git a/opcodes/d10v-dis.c b/opcodes/d10v-dis.c
new file mode 100644
index 0000000..a4d5438
--- /dev/null
+++ b/opcodes/d10v-dis.c
@@ -0,0 +1,238 @@
+/* Disassemble D10V instructions.
+   Copyright (C) 1996 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+
+#include <stdio.h>
+
+#include "opcode/d10v.h" 
+#include "dis-asm.h"
+
+static void dis_2_short PARAMS ((unsigned long insn, char *str, int order));
+static void dis_long PARAMS ((unsigned long insn, char *str));
+
+int 
+print_insn_d10v (memaddr, info)
+     bfd_vma memaddr;
+     struct disassemble_info *info;
+{
+  int status;
+  bfd_byte buffer[4];
+  unsigned long insn;
+  char str[64];
+
+  strcpy (str, "unknown");
+
+  status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+  if (status != 0)
+    {
+      (*info->memory_error_func) (status, memaddr, info);
+      return -1;
+    }
+  insn = bfd_getb32 (buffer);
+
+  status = insn & FM11;
+  switch (status) {
+  case 0:
+    dis_2_short (insn, str, 2);
+    break;
+  case FM01:
+    dis_2_short (insn, str, 0);
+    break;
+  case FM10:
+    dis_2_short (insn, str, 1);
+    break;
+  case FM11:
+    dis_long (insn, str);
+    break;
+  }
+  (*info->fprintf_func) (info->stream, "\t%s", str, insn);  
+  return 4;
+}
+
+static void
+print_operand (buf, oper, insn, op)
+     char *buf;
+     struct d10v_operand *oper;
+     unsigned long insn;
+     struct d10v_opcode *op;
+{
+  int num, shift;
+
+  if (oper->flags == OPERAND_ATMINUS)
+    {
+      strcpy (buf,"@-");
+      return;
+    }
+  if (oper->flags == OPERAND_MINUS)
+    {
+      strcpy (buf,"-");
+      return;
+    }
+  if (oper->flags == OPERAND_PLUS)
+    {
+      strcpy (buf,"+");
+      return;
+    }
+  if (oper->flags == OPERAND_ATSIGN)
+    {
+      strcpy (buf,"@");
+      return;
+    }
+  if (oper->flags == OPERAND_ATPAR)
+    {
+      strcpy (buf,"@(");
+      return;
+    }
+
+  shift = oper->shift;
+
+  /* the LONG_L format shifts registers over by 15 */
+  if (op->format == LONG_L && (oper->flags & OPERAND_REG))
+    shift += 15;
+
+  num = (insn >> shift) & (0x7FFFFFFF >> (31 - oper->bits));
+
+  if (oper->flags & OPERAND_ACC)
+    *buf++ = 'a';
+  else if (oper->flags & OPERAND_CONTROL)
+    {
+      *buf++ ='c';
+      *buf++ ='r';
+    }
+  else if(oper->flags & OPERAND_REG)
+    *buf++ = 'r';
+
+  if (oper->flags & OPERAND_REG)
+    sprintf (buf, "%d", num);
+  else
+    sprintf (buf, "0x%x", num);
+}
+
+
+static void
+dis_long (insn, str)
+     unsigned long insn;
+     char *str;
+{
+  int i;
+  char buf[32];
+  struct d10v_opcode *op = (struct d10v_opcode *)d10v_opcodes;
+  struct d10v_operand *oper;
+  int need_paren = 0;
+
+  while (op->name)
+    {
+      if ((op->format & LONG_OPCODE) && ((op->mask & insn) == op->opcode))
+	{
+	  strcpy (str, op->name);
+	  strcat (str, "\t");
+	  for ( i=0; op->operands[i]; i++)
+	    {
+	      oper = (struct d10v_operand *)&d10v_operands[op->operands[i]];
+	      if (oper->flags == OPERAND_ATPAR)
+		need_paren = 1;
+	      print_operand (buf, oper, insn, op);
+	      strcat (str, buf);
+	      if (op->operands[i+1] && oper->bits &&
+		  d10v_operands[op->operands[i+1]].flags != OPERAND_PLUS &&
+		  d10v_operands[op->operands[i+1]].flags != OPERAND_MINUS)
+		strcat (str,", ");
+	    }
+	  break;
+	}
+      op++;
+    }
+  if (need_paren)
+    strcat (str, ")");
+}
+
+static void
+dis_2_short (insn, str, order)
+     unsigned long insn;
+     char *str;
+     int order;
+{
+  int i,j;
+  char astr[2][32];
+  unsigned int ins[2];
+  struct d10v_opcode *op;
+  char buf[32];
+  int match, num_match=0;
+  struct d10v_operand *oper;
+  int need_paren = 0;
+
+  ins[0] = (insn & 0x3FFFFFFF) >> 15;
+  ins[1] = insn & 0x00007FFF;
+
+  *str = 0;
+
+  for(j=0;j<2;j++)
+    {
+      op = (struct d10v_opcode *)d10v_opcodes;
+      match=0;
+      while (op->name)
+	{
+	  if ((op->format & SHORT_OPCODE) && ((op->mask & ins[j]) == op->opcode))
+	    {
+	      strcat (str, op->name);
+	      strcat (str, "\t");
+	      for (i=0; op->operands[i]; i++)
+		{
+		  oper = (struct d10v_operand *)&d10v_operands[op->operands[i]];
+		  if (oper->flags == OPERAND_ATPAR)
+		    need_paren = 1;
+		  print_operand (buf, oper, ins[j], op);
+		  strcat (str, buf);
+		  if (op->operands[i+1] && oper->bits && 
+		  d10v_operands[op->operands[i+1]].flags != OPERAND_PLUS &&
+		  d10v_operands[op->operands[i+1]].flags != OPERAND_MINUS)
+		    strcat( str,", ");
+		}
+	      match = 1;
+	      num_match++;
+	      break;
+	    }
+	  op++;
+	}
+      if (!match)
+	  strcat (str, "unknown");
+
+      switch (order)
+	{
+	case 0:
+	  strcat ( str, "\t->\t");
+	  order = -1;
+	  break;
+	case 1:
+	  strcat (str, "\t<-\t");
+	  order = -1;
+	  break;
+	case 2:
+	  strcat (str, "\t||\t");
+	  order = -1;
+	  break;
+	default:
+	  break;
+	}
+    }
+
+  if (num_match == 0)
+    sprintf (str, ".long\t0x%08x", insn);
+
+  if (need_paren)
+    strcat (str, ")");
+}