sim/d10v/gencode.c

   1 #include "config.h"
   2 #include <stdio.h>
   3 #include <ctype.h>
   4 #include <limits.h>
   5 #include <string.h>
   6 #include "ansidecl.h"
   7 #include "opcode/d10v.h"
   8
   9 static void write_header (void);
  10 static void write_opcodes (void);
  11 static void write_template (void);
  12
  13 int
  14 main (int argc, char *argv[])
  15 {
  16   if ((argc > 1) && (strcmp (argv[1],"-h") == 0))
  17     write_header();
  18   else if ((argc > 1) && (strcmp (argv[1],"-t") == 0))
  19     write_template ();
  20   else
  21     write_opcodes();
  22   return 0;
  23 }
  24
  25
  26 static void
  27 write_header (void)
  28 {
  29   struct d10v_opcode *opcode;
  30
  31   for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
  32     if (opcode->format != OPCODE_FAKE)
  33       printf ("void OP_%lX (SIM_DESC, SIM_CPU *);\t\t/* %s */\n", opcode->opcode, opcode->name);
  34 }
  35
  36
  37 /* write_template creates a file all required functions, ready */
  38 /* to be filled out */
  39
  40 static void
  41 write_template (void)
  42 {
  43   struct d10v_opcode *opcode;
  44   int i,j;
  45
  46   printf ("#include \"sim-main.h\"\n");
  47   printf ("#include \"simops.h\"\n");
  48
  49   for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
  50     {
  51       if (opcode->format != OPCODE_FAKE)
  52         {
  53           printf("/* %s */\nvoid\nOP_%lX ()\n{\n", opcode->name, opcode->opcode);
  54
  55           /* count operands */
  56           j = 0;
  57           for (i=0;i<6;i++)
  58             {
  59               int flags = d10v_operands[opcode->operands[i]].flags;
  60               if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
  61                 j++;
  62             }
  63           switch (j)
  64             {
  65             case 0:
  66               printf ("printf(\"   %s\\n\");\n",opcode->name);
  67               break;
  68             case 1:
  69               printf ("printf(\"   %s\\t%%x\\n\",OP[0]);\n",opcode->name);
  70               break;
  71             case 2:
  72               printf ("printf(\"   %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",opcode->name);
  73               break;
  74             case 3:
  75               printf ("printf(\"   %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",opcode->name);
  76               break;
  77             default:
  78               fprintf (stderr,"Too many operands: %d\n",j);
  79             }
  80           printf ("}\n\n");
  81         }
  82     }
  83 }
  84
  85
  86 long Opcodes[512];
  87 static int curop=0;
  88
  89 static void
  90 check_opcodes( long op)
  91 {
  92   int i;
  93
  94   for (i=0;i<curop;i++)
  95     if (Opcodes[i] == op)
  96       fprintf(stderr,"DUPLICATE OPCODES: %lx\n", op);
  97 }
  98
  99 static void
 100 write_opcodes (void)
 101 {
 102   struct d10v_opcode *opcode;
 103   int i, j;
 104
 105   /* write out opcode table */
 106   printf ("#include \"sim-main.h\"\n");
 107   printf ("#include \"simops.h\"\n\n");
 108   printf ("struct simops Simops[] = {\n");
 109
 110   for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
 111     {
 112       if (opcode->format != OPCODE_FAKE)
 113         {
 114           printf ("  { %ld,%d,%ld,%d,%d,%d,%d,OP_%lX,", opcode->opcode,
 115                   (opcode->format & LONG_OPCODE) ? 1 : 0, opcode->mask, opcode->format,
 116                   opcode->cycles, opcode->unit, opcode->exec_type, opcode->opcode);
 117
 118           /* REMOVE ME */
 119           check_opcodes (opcode->opcode);
 120           Opcodes[curop++] = opcode->opcode;
 121
 122           j = 0;
 123           for (i=0;i<6;i++)
 124             {
 125               int flags = d10v_operands[opcode->operands[i]].flags;
 126               if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
 127                 j++;
 128             }
 129           printf ("%d,",j);
 130
 131           j = 0;
 132           for (i=0;i<6;i++)
 133             {
 134               int flags = d10v_operands[opcode->operands[i]].flags;
 135               int shift = d10v_operands[opcode->operands[i]].shift;
 136               if ((flags & OPERAND_REG) || (flags & OPERAND_NUM)|| (flags & OPERAND_ADDR))
 137                 {
 138                   if (j == 0)
 139                     printf ("{");
 140                   else
 141                     printf (", ");
 142                   if ((flags & OPERAND_REG) && (opcode->format == LONG_L))
 143                     shift += 15;
 144                   printf ("%d,%d,%d",shift,d10v_operands[opcode->operands[i]].bits,flags);
 145                   j = 1;
 146                 }
 147             }
 148           if (j)
 149             printf ("}");
 150           printf ("},\n");
 151         }
 152     }
 153   printf ("{ 0,0,0,0,0,0,0,(void (*)())0,0,{0,0,0}},\n};\n");
 154 }