679546067e
By itself, this commit doesn't really change anything. It lays the groundwork for using the cpu state in follow up commits, both for engine state and for cpu state. Splitting things up this way so it is easier to see how things have changed.
154 lines
3.6 KiB
C
154 lines
3.6 KiB
C
#include "config.h"
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#include <stdio.h>
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#include <ctype.h>
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#include <limits.h>
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#include <string.h>
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#include "ansidecl.h"
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#include "opcode/d10v.h"
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static void write_header (void);
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static void write_opcodes (void);
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static void write_template (void);
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int
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main (int argc, char *argv[])
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{
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if ((argc > 1) && (strcmp (argv[1],"-h") == 0))
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write_header();
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else if ((argc > 1) && (strcmp (argv[1],"-t") == 0))
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write_template ();
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else
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write_opcodes();
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return 0;
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}
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static void
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write_header (void)
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{
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struct d10v_opcode *opcode;
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for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
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if (opcode->format != OPCODE_FAKE)
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printf ("void OP_%lX (SIM_DESC, SIM_CPU *);\t\t/* %s */\n", opcode->opcode, opcode->name);
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}
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/* write_template creates a file all required functions, ready */
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/* to be filled out */
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static void
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write_template (void)
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{
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struct d10v_opcode *opcode;
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int i,j;
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printf ("#include \"sim-main.h\"\n");
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printf ("#include \"simops.h\"\n");
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for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
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{
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if (opcode->format != OPCODE_FAKE)
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{
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printf("/* %s */\nvoid\nOP_%lX ()\n{\n", opcode->name, opcode->opcode);
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/* count operands */
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j = 0;
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for (i=0;i<6;i++)
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{
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int flags = d10v_operands[opcode->operands[i]].flags;
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if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
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j++;
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}
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switch (j)
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{
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case 0:
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printf ("printf(\" %s\\n\");\n",opcode->name);
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break;
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case 1:
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printf ("printf(\" %s\\t%%x\\n\",OP[0]);\n",opcode->name);
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break;
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case 2:
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printf ("printf(\" %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",opcode->name);
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break;
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case 3:
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printf ("printf(\" %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",opcode->name);
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break;
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default:
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fprintf (stderr,"Too many operands: %d\n",j);
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}
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printf ("}\n\n");
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}
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}
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}
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long Opcodes[512];
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static int curop=0;
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static void
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check_opcodes( long op)
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{
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int i;
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for (i=0;i<curop;i++)
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if (Opcodes[i] == op)
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fprintf(stderr,"DUPLICATE OPCODES: %lx\n", op);
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}
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static void
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write_opcodes (void)
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{
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struct d10v_opcode *opcode;
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int i, j;
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/* write out opcode table */
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printf ("#include \"sim-main.h\"\n");
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printf ("#include \"simops.h\"\n\n");
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printf ("struct simops Simops[] = {\n");
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for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
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{
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if (opcode->format != OPCODE_FAKE)
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{
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printf (" { %ld,%d,%ld,%d,%d,%d,%d,OP_%lX,", opcode->opcode,
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(opcode->format & LONG_OPCODE) ? 1 : 0, opcode->mask, opcode->format,
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opcode->cycles, opcode->unit, opcode->exec_type, opcode->opcode);
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/* REMOVE ME */
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check_opcodes (opcode->opcode);
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Opcodes[curop++] = opcode->opcode;
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j = 0;
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for (i=0;i<6;i++)
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{
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int flags = d10v_operands[opcode->operands[i]].flags;
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if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
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j++;
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}
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printf ("%d,",j);
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j = 0;
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for (i=0;i<6;i++)
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{
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int flags = d10v_operands[opcode->operands[i]].flags;
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int shift = d10v_operands[opcode->operands[i]].shift;
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if ((flags & OPERAND_REG) || (flags & OPERAND_NUM)|| (flags & OPERAND_ADDR))
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{
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if (j == 0)
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printf ("{");
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else
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printf (", ");
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if ((flags & OPERAND_REG) && (opcode->format == LONG_L))
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shift += 15;
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printf ("%d,%d,%d",shift,d10v_operands[opcode->operands[i]].bits,flags);
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j = 1;
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}
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}
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if (j)
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printf ("}");
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printf ("},\n");
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}
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}
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printf ("{ 0,0,0,0,0,0,0,(void (*)())0,0,{0,0,0}},\n};\n");
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}
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