sim/v850/gencode.c

   1 #include "v850_sim.h"
   2
   3 static void write_header PARAMS ((void));
   4 static void write_opcodes PARAMS ((void));
   5 static void write_template PARAMS ((void));
   6
   7 long Opcodes[512];
   8 static int curop=0;
   9
  10 int
  11 main (argc, argv)
  12      int argc;
  13      char *argv[];
  14 {
  15   if ((argc > 1) && (strcmp (argv[1], "-h") == 0))
  16     write_header();
  17   else if ((argc > 1) && (strcmp (argv[1], "-t") == 0))
  18     write_template ();
  19   else
  20     write_opcodes();
  21   return 0;
  22 }
  23
  24
  25 static void
  26 write_header ()
  27 {
  28   struct v850_opcode *opcode;
  29
  30   for (opcode = (struct v850_opcode *)v850_opcodes; opcode->name; opcode++)
  31     printf("int OP_%X PARAMS ((void));\t\t/* %s */\n",
  32            opcode->opcode, opcode->name);
  33 }
  34
  35
  36 /* write_template creates a file all required functions, ready */
  37 /* to be filled out */
  38
  39 static void
  40 write_template ()
  41 {
  42   struct v850_opcode *opcode;
  43   int i,j;
  44
  45   printf ("#include \"v850_sim.h\"\n");
  46   printf ("#include \"simops.h\"\n");
  47
  48   for (opcode = (struct v850_opcode *)v850_opcodes; opcode->name; opcode++)
  49     {
  50       printf("/* %s */\nvoid\nOP_%X ()\n{\n", opcode->name, opcode->opcode);
  51
  52       /* count operands */
  53       j = 0;
  54       for (i = 0; i < 6; i++)
  55         {
  56           int flags = v850_operands[opcode->operands[i]].flags;
  57
  58           if (flags & (V850_OPERAND_REG | V850_OPERAND_SRG | V850_OPERAND_CC))
  59             j++;
  60         }
  61       switch (j)
  62         {
  63         case 0:
  64           printf ("printf(\"   %s\\n\");\n", opcode->name);
  65           break;
  66         case 1:
  67           printf ("printf(\"   %s\\t%%x\\n\", OP[0]);\n", opcode->name);
  68           break;
  69         case 2:
  70           printf ("printf(\"   %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",
  71                   opcode->name);
  72           break;
  73         case 3:
  74           printf ("printf(\"   %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",
  75                   opcode->name);
  76           break;
  77         default:
  78           fprintf (stderr,"Too many operands: %d\n", j);
  79         }
  80       printf ("}\n\n");
  81     }
  82 }
  83
  84 static void
  85 write_opcodes ()
  86 {
  87   struct v850_opcode *opcode;
  88   int i, j;
  89   int numops;
  90
  91   /* write out opcode table */
  92   printf ("#include \"v850_sim.h\"\n");
  93   printf ("#include \"simops.h\"\n\n");
  94   printf ("struct simops Simops[] = {\n");
  95
  96   for (opcode = (struct v850_opcode *)v850_opcodes; opcode->name; opcode++)
  97     {
  98       printf ("  { 0x%x,0x%x,OP_%X,",
  99               opcode->opcode, opcode->mask, opcode->opcode);
 100
 101       Opcodes[curop++] = opcode->opcode;
 102
 103       /* count operands */
 104       j = 0;
 105       for (i = 0; i < 6; i++)
 106         {
 107           int flags = v850_operands[opcode->operands[i]].flags;
 108
 109           if (flags & (V850_OPERAND_REG | V850_OPERAND_SRG | V850_OPERAND_CC))
 110             j++;
 111         }
 112       printf ("%d,{",j);
 113
 114       j = 0;
 115       numops = 0;
 116       for (i = 0; i < 6; i++)
 117         {
 118           int flags = v850_operands[opcode->operands[i]].flags;
 119           int shift = v850_operands[opcode->operands[i]].shift;
 120
 121           if (flags & (V850_OPERAND_REG | V850_OPERAND_SRG | V850_OPERAND_CC))
 122             {
 123               if (j)
 124                 printf (", ");
 125               printf ("%d,%d,%d", shift,
 126                       v850_operands[opcode->operands[i]].bits,flags);
 127               j = 1;
 128               numops++;
 129             }
 130         }
 131
 132       switch (numops)
 133         {
 134         case 0:
 135           printf ("0,0,0");
 136         case 1:
 137           printf (",0,0,0");
 138         }
 139
 140       printf ("}},\n");
 141     }
 142   printf ("{ 0,0,NULL,0,{0,0,0,0,0,0}},\n};\n");
 143 }