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-rw-r--r--sim/mn10300/gencode.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/sim/mn10300/gencode.c b/sim/mn10300/gencode.c
new file mode 100644
index 0000000..bef312c
--- /dev/null
+++ b/sim/mn10300/gencode.c
@@ -0,0 +1,163 @@
+#include "mn10300_sim.h"
+
+static void write_header PARAMS ((void));
+static void write_opcodes PARAMS ((void));
+static void write_template PARAMS ((void));
+
+long Opcodes[512];
+static int curop=0;
+
+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 mn10300_opcode *opcode;
+
+ for (opcode = (struct mn10300_opcode *)mn10300_opcodes; opcode->name; opcode++)
+ printf("void OP_%X PARAMS ((unsigned long, unsigned long));\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 mn10300_opcode *opcode;
+ int i,j;
+
+ printf ("#include \"mn10300_sim.h\"\n");
+ printf ("#include \"simops.h\"\n");
+
+ for (opcode = (struct mn10300_opcode *)mn10300_opcodes; opcode->name; opcode++)
+ {
+ printf("/* %s */\nvoid\nOP_%X (insn, extension)\n unsigned long insn, extension;\n{\n", opcode->name, opcode->opcode);
+
+ /* count operands */
+ j = 0;
+ for (i = 0; i < 6; i++)
+ {
+ int flags = mn10300_operands[opcode->operands[i]].flags;
+
+ if (flags)
+ 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");
+ }
+}
+
+static void
+write_opcodes ()
+{
+ struct mn10300_opcode *opcode;
+ int i, j;
+ int numops;
+
+ /* write out opcode table */
+ printf ("#include \"mn10300_sim.h\"\n");
+ printf ("#include \"simops.h\"\n\n");
+ printf ("struct simops Simops[] = {\n");
+
+ for (opcode = (struct mn10300_opcode *)mn10300_opcodes; opcode->name; opcode++)
+ {
+ int size;
+
+ if (opcode->format == FMT_S0)
+ size = 1;
+ else if (opcode->format == FMT_S1
+ || opcode->format == FMT_D0)
+ size = 2;
+ else if (opcode->format == FMT_S2
+ || opcode->format == FMT_D1)
+ size = 3;
+ else if (opcode->format == FMT_S4)
+ size = 5;
+ else if (opcode->format == FMT_D2)
+ size = 4;
+ else if (opcode->format == FMT_D4)
+ size = 6;
+ else
+ size = 7;
+
+ printf (" { 0x%x,0x%x,OP_%X,%d,%d,",
+ opcode->opcode, opcode->mask, opcode->opcode,
+ size, opcode->format);
+
+ Opcodes[curop++] = opcode->opcode;
+
+ /* count operands */
+ j = 0;
+ for (i = 0; i < 6; i++)
+ {
+ int flags = mn10300_operands[opcode->operands[i]].flags;
+
+ if (flags)
+ j++;
+ }
+ printf ("%d,{",j);
+
+ j = 0;
+ numops = 0;
+ for (i = 0; i < 6; i++)
+ {
+ int flags = mn10300_operands[opcode->operands[i]].flags;
+ int shift = mn10300_operands[opcode->operands[i]].shift;
+
+ if (flags)
+ {
+ if (j)
+ printf (", ");
+ printf ("%d,%d,%d", shift,
+ mn10300_operands[opcode->operands[i]].bits,flags);
+ j = 1;
+ numops++;
+ }
+ }
+
+ switch (numops)
+ {
+ case 0:
+ printf ("0,0,0");
+ case 1:
+ printf (",0,0,0");
+ }
+
+ printf ("}},\n");
+ }
+ printf ("{ 0,0,NULL,0,0,0,{0,0,0,0,0,0}},\n};\n");
+}