xref: /netbsd-src/external/gpl3/gdb/dist/sim/d10v/gencode.c (revision ccd9df534e375a4366c5b55f23782053c7a98d82)
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