1 files changed, 144 insertions, 0 deletions
diff --git a/sim/v850/gencode.c b/sim/v850/gencode.c
new file mode 100644
index 0000000..37f41b8
--- /dev/null
+++ b/sim/v850/gencode.c
@@ -0,0 +1,144 @@
+#include "v850_sim.h"
+
+static void write_header PARAMS ((void));
+static void write_opcodes PARAMS ((void));
+static void write_template PARAMS ((void));
+
+int
+main (argc, argv)
+     int argc;
+     char *argv[];
+{
+  if ((argc > 1) && (strcmp (argv[1],"-h") == 0))
+    write_header();
+  else if ((argc > 1) && (strcmp (argv[1],"-t") == 0))
+    write_template ();
+  else
+    write_opcodes();
+  return 0;
+}
+
+
+static void
+write_header ()
+{
+  struct v850_opcode *opcode;
+
+  for (opcode = (struct v850_opcode *)v850_opcodes; opcode->name; opcode++)
+    printf("void OP_%X PARAMS ((void));\t\t/* %s */\n",opcode->opcode, opcode->name);
+}
+
+
+/* write_template creates a file all required functions, ready */
+/* to be filled out */
+
+static void
+write_template ()
+{
+  struct v850_opcode *opcode;
+  int i,j;
+
+  printf ("#include \"v850_sim.h\"\n");
+  printf ("#include \"simops.h\"\n");
+
+  for (opcode = (struct v850_opcode *)v850_opcodes; opcode->name; opcode++)
+    {
+      printf("/* %s */\nvoid\nOP_%X ()\n{\n",opcode->name,opcode->opcode);
+	  
+      /* count operands */
+      j = 0;
+      for (i = 0; i < 6; i++)
+	{
+	  int flags = v850_operands[opcode->operands[i]].flags;
+
+	  if (flags & (V850_OPERAND_REG | V850_OPERAND_SRG | V850_OPERAND_CC))
+	    j++;
+	}
+      switch (j)
+	{
+	case 0:
+	  printf ("printf(\"   %s\\n\");\n",opcode->name);
+	  break;
+	case 1:
+	  printf ("printf(\"   %s\\t%%x\\n\",OP[0]);\n",opcode->name);
+	  break;
+	case 2:
+	  printf ("printf(\"   %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",opcode->name);
+	  break;
+	case 3:
+	  printf ("printf(\"   %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",opcode->name);
+	  break;
+	default:
+	  fprintf (stderr,"Too many operands: %d\n",j);
+	}
+      printf ("}\n\n");
+    }
+}
+
+
+long Opcodes[512];
+static int curop=0;
+
+check_opcodes( long op)
+{
+  int i;
+
+  for (i=0;i<curop;i++)
+    if (Opcodes[i] == op)
+      fprintf(stderr,"DUPLICATE OPCODES: %x\n",op);
+}
+
+
+static void
+write_opcodes ()
+{
+  struct v850_opcode *opcode;
+  int i, j;
+  
+  /* write out opcode table */
+  printf ("#include \"v850_sim.h\"\n");
+  printf ("#include \"simops.h\"\n\n");
+  printf ("struct simops Simops[] = {\n");
+  
+  for (opcode = (struct v850_opcode *)v850_opcodes; opcode->name; opcode++)
+    {
+      printf ("  { %ld,%ld,OP_%X,",
+	      opcode->opcode, opcode->mask, opcode->opcode);
+      
+      /* REMOVE ME */
+      check_opcodes (opcode->opcode);
+      Opcodes[curop++] = opcode->opcode;
+
+      /* count operands */
+      j = 0;
+      for (i = 0; i < 6; i++)
+	{
+	  int flags = v850_operands[opcode->operands[i]].flags;
+
+	  if (flags & (V850_OPERAND_REG | V850_OPERAND_SRG | V850_OPERAND_CC))
+	    j++;
+	}
+      printf ("%d,{",j);
+	  
+      j = 0;
+      for (i = 0; i < 6; i++)
+	{
+	  int flags = v850_operands[opcode->operands[i]].flags;
+	  int shift = v850_operands[opcode->operands[i]].shift;
+
+	  if (flags & (V850_OPERAND_REG | V850_OPERAND_SRG | V850_OPERAND_CC))
+	    {
+	      if (j)
+		printf (", ");
+#if 0
+	      if ((flags & OPERAND_REG) && (opcode->format == LONG_L))
+		shift += 15;
+#endif
+	      printf ("%d,%d,%d",shift,v850_operands[opcode->operands[i]].bits,flags);
+	      j = 1;
+	    }
+	}
+      printf ("}},\n");
+    }
+  printf ("{ 0,0,NULL,0,{ }},\n};\n");
+}