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[bpt/guile.git] / src / vm-snarf.h

/* Copyright (C) 2000 Free Software Foundation, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 *
 * As a special exception, the Free Software Foundation gives permission
 * for additional uses of the text contained in its release of GUILE.
 *
 * The exception is that, if you link the GUILE library with other files
 * to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the GUILE library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the
 * Free Software Foundation under the name GUILE.  If you copy
 * code from other Free Software Foundation releases into a copy of
 * GUILE, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for GUILE, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.  */

#ifndef VM_SNARF_H
#define VM_SNARF_H

#include "config.h"

#define VM_LABEL(TAG) l_##TAG## 
#define VM_OPCODE(TAG) op_##TAG## 

#ifdef HAVE_LABELS_AS_VALUES
#define VM_TAG(TAG) VM_LABEL(TAG):
#define VM_ADDR(TAG) &&VM_LABEL(TAG)
#else /* not HAVE_LABELS_AS_VALUES */
#define VM_TAG(TAG) case VM_OPCODE(TAG):
#define VM_ADDR(TAG) NULL
#endif /* not HAVE_LABELS_AS_VALUES */

#ifndef SCM_MAGIC_SNARFER

/*
 * These are directly included in vm_engine.c
 */
#define SCM_DEFINE_INSTRUCTION(TAG,NAME,TYPE) VM_TAG(TAG)
#define SCM_DEFINE_VM_FUNCTION(TAG,SNAME,NAME,NARGS,RESTP) VM_TAG(TAG)

#else /* SCM_MAGIC_SNARFER */
#ifndef SCM_SNARF_OPCODE
#ifndef SCM_SNARF_LABEL

/*
 * These will go to *.inst
 */
#define SCM_DEFINE_INSTRUCTION(TAG,NAME,TYPE) \
  SCM_SNARF_INIT_START {VM_OPCODE(TAG), TYPE, NAME, SCM_BOOL_F, NULL, 0, 0},
#define SCM_DEFINE_VM_FUNCTION(TAG,SNAME,NAME,NARGS,RESTP) \
  SCM_SNARF_INIT_START {VM_OPCODE(TAG), INST_NONE, NAME, SCM_BOOL_F, SNAME, NARGS, RESTP},

#else /* SCM_SNARF_LABEL */

/*
 * These will go to *.label
 */
#define SCM_DEFINE_INSTRUCTION(TAG,NAME,TYPE) \
  SCM_SNARF_INIT_START VM_ADDR(TAG),
#define SCM_DEFINE_VM_FUNCTION(TAG,SNAME,NAME,NARGS,RESTP) \
  SCM_SNARF_INIT_START VM_ADDR(TAG),

#endif /* SCM_SNARF_LABEL */
#else /* SCM_SNARF_OPCODE */

/*
 * These will go to *.opcode
 */
#define SCM_DEFINE_INSTRUCTION(TAG,NAME,TYPE) \
  SCM_SNARF_INIT_START VM_OPCODE(TAG),
#define SCM_DEFINE_VM_FUNCTION(TAG,SNAME,NAME,NARGS,RESTP) \
  SCM_SNARF_INIT_START VM_OPCODE(TAG),

#endif /* SCM_SNARF_OPCODE */
#endif /* SCM_MAGIC_SNARFER */

#endif /* not VM_SNARF_H */