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gencode.c revision 1.6.16.1 
      1 #include <stdio.h>
      2 #include <ctype.h>
      3 #include <limits.h>
      4 #include <string.h>
      5 #include "ansidecl.h"
      6 #include "opcode/d10v.h"
      7 
      8 static void write_header (void);
      9 static void write_opcodes (void);
     10 static void write_template (void);
     11 
     12 int
     13 main (int argc, 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 (void)
     27 {
     28   struct d10v_opcode *opcode;
     29 
     30   for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
     31     if (opcode->format != OPCODE_FAKE)
     32       printf ("void OP_%lX (SIM_DESC, SIM_CPU *);\t\t/* %s */\n", 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 (void)
     41 {
     42   struct d10v_opcode *opcode;
     43   int i,j;
     44 
     45   printf ("#include \"sim-main.h\"\n");
     46   printf ("#include \"simops.h\"\n");
     47 
     48   for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
     49     {
     50       if (opcode->format != OPCODE_FAKE)
     51 	{
     52 	  printf("/* %s */\nvoid\nOP_%lX ()\n{\n", opcode->name, opcode->opcode);
     53 
     54 	  /* count operands */
     55 	  j = 0;
     56 	  for (i=0;i<6;i++)
     57 	    {
     58 	      int flags = d10v_operands[opcode->operands[i]].flags;
     59 	      if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
     60 		j++;
     61 	    }
     62 	  switch (j)
     63 	    {
     64 	    case 0:
     65 	      printf ("printf(\"   %s\\n\");\n",opcode->name);
     66 	      break;
     67 	    case 1:
     68 	      printf ("printf(\"   %s\\t%%x\\n\",OP[0]);\n",opcode->name);
     69 	      break;
     70 	    case 2:
     71 	      printf ("printf(\"   %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",opcode->name);
     72 	      break;
     73 	    case 3:
     74 	      printf ("printf(\"   %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",opcode->name);
     75 	      break;
     76 	    default:
     77 	      fprintf (stderr,"Too many operands: %d\n",j);
     78 	    }
     79 	  printf ("}\n\n");
     80 	}
     81     }
     82 }
     83 
     84 
     85 long Opcodes[512];
     86 static int curop=0;
     87 
     88 static void
     89 check_opcodes( long op)
     90 {
     91   int i;
     92 
     93   for (i=0;i<curop;i++)
     94     if (Opcodes[i] == op)
     95       fprintf(stderr,"DUPLICATE OPCODES: %lx\n", op);
     96 }
     97 
     98 static void
     99 write_opcodes (void)
    100 {
    101   struct d10v_opcode *opcode;
    102   int i, j;
    103 
    104   /* write out opcode table */
    105   printf ("#include \"sim-main.h\"\n");
    106   printf ("#include \"simops.h\"\n\n");
    107   printf ("struct simops Simops[] = {\n");
    108 
    109   for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
    110     {
    111       if (opcode->format != OPCODE_FAKE)
    112 	{
    113 	  printf ("  { %ld,%d,%ld,%d,%d,%d,%d,OP_%lX,", opcode->opcode,
    114 		  (opcode->format & LONG_OPCODE) ? 1 : 0, opcode->mask, opcode->format,
    115 		  opcode->cycles, opcode->unit, opcode->exec_type, opcode->opcode);
    116 
    117 	  /* REMOVE ME */
    118 	  check_opcodes (opcode->opcode);
    119 	  Opcodes[curop++] = opcode->opcode;
    120 
    121 	  j = 0;
    122 	  for (i=0;i<6;i++)
    123 	    {
    124 	      int flags = d10v_operands[opcode->operands[i]].flags;
    125 	      if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
    126 		j++;
    127 	    }
    128 	  printf ("%d,",j);
    129 
    130 	  j = 0;
    131 	  for (i=0;i<6;i++)
    132 	    {
    133 	      int flags = d10v_operands[opcode->operands[i]].flags;
    134 	      int shift = d10v_operands[opcode->operands[i]].shift;
    135 	      if ((flags & OPERAND_REG) || (flags & OPERAND_NUM)|| (flags & OPERAND_ADDR))
    136 		{
    137 		  if (j == 0)
    138 		    printf ("{");
    139 		  else
    140 		    printf (", ");
    141 		  if ((flags & OPERAND_REG) && (opcode->format == LONG_L))
    142 		    shift += 15;
    143 		  printf ("%d,%d,%d",shift,d10v_operands[opcode->operands[i]].bits,flags);
    144 		  j = 1;
    145 		}
    146 	    }
    147 	  if (j)
    148 	    printf ("}");
    149 	  printf ("},\n");
    150 	}
    151     }
    152   printf ("{ 0,0,0,0,0,0,0,(void (*)())0,0,{0,0,0}},\n};\n");
    153 }
    154