libguile/vm-expand.h

   1 /* Copyright (C) 2001 Free Software Foundation, Inc.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2, or (at your option)
   6  * any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this software; see the file COPYING.  If not, write to
  15  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  16  * Boston, MA 02111-1307 USA
  17  *
  18  * As a special exception, the Free Software Foundation gives permission
  19  * for additional uses of the text contained in its release of GUILE.
  20  *
  21  * The exception is that, if you link the GUILE library with other files
  22  * to produce an executable, this does not by itself cause the
  23  * resulting executable to be covered by the GNU General Public License.
  24  * Your use of that executable is in no way restricted on account of
  25  * linking the GUILE library code into it.
  26  *
  27  * This exception does not however invalidate any other reasons why
  28  * the executable file might be covered by the GNU General Public License.
  29  *
  30  * This exception applies only to the code released by the
  31  * Free Software Foundation under the name GUILE.  If you copy
  32  * code from other Free Software Foundation releases into a copy of
  33  * GUILE, as the General Public License permits, the exception does
  34  * not apply to the code that you add in this way.  To avoid misleading
  35  * anyone as to the status of such modified files, you must delete
  36  * this exception notice from them.
  37  *
  38  * If you write modifications of your own for GUILE, it is your choice
  39  * whether to permit this exception to apply to your modifications.
  40  * If you do not wish that, delete this exception notice.  */
  41
  42 #ifndef VM_LABEL
  43 #define VM_LABEL(tag) l_##tag
  44 #define VM_OPCODE(tag) scm_op_##tag
  45
  46 #ifdef HAVE_LABELS_AS_VALUES
  47 #define VM_TAG(tag) VM_LABEL(tag):
  48 #define VM_ADDR(tag) &&VM_LABEL(tag)
  49 #else /* not HAVE_LABELS_AS_VALUES */
  50 #define VM_TAG(tag) case VM_OPCODE(tag):
  51 #define VM_ADDR(tag) NULL
  52 #endif /* not HAVE_LABELS_AS_VALUES */
  53 #endif /* VM_LABEL */
  54
  55 #undef VM_DEFINE_FUNCTION
  56 #undef VM_DEFINE_LOADER
  57 #define VM_DEFINE_FUNCTION(code,tag,name,nargs) \
  58   VM_DEFINE_INSTRUCTION(code,tag,name,0,nargs,1)
  59 #define VM_DEFINE_LOADER(code,tag,name)         \
  60   VM_DEFINE_INSTRUCTION(code,tag,name,-1,0,1)
  61
  62 #undef VM_DEFINE_INSTRUCTION
  63 /*
  64  * These will go to scm_instruction_table in instructions.c
  65  */
  66 #ifdef VM_INSTRUCTION_TO_TABLE
  67 #define VM_DEFINE_INSTRUCTION(code_,tag_,name_,len_,npop_,npush_) \
  68   table[VM_OPCODE (tag_)].opcode = VM_OPCODE (tag_);               \
  69   table[VM_OPCODE (tag_)].name = name_;                            \
  70   table[VM_OPCODE (tag_)].len = len_;                              \
  71   table[VM_OPCODE (tag_)].npop = npop_;                            \
  72   table[VM_OPCODE (tag_)].npush = npush_;
  73
  74 #else
  75 #ifdef VM_INSTRUCTION_TO_LABEL
  76 /*
  77  * These will go to jump_table in vm_engine.c
  78  */
  79 #define VM_DEFINE_INSTRUCTION(code,tag,name,len,npop,npush)     jump_table[VM_OPCODE (tag)] = VM_ADDR (tag);
  80
  81 #else
  82 #ifdef VM_INSTRUCTION_TO_OPCODE
  83 /*
  84  * These will go to scm_opcode in instructions.h
  85  */
  86 #define VM_DEFINE_INSTRUCTION(code,tag,name,len,npop,npush)     VM_OPCODE (tag) = code,
  87
  88 #else /* Otherwise */
  89 /*
  90  * These are directly included in vm_engine.c
  91  */
  92 #define VM_DEFINE_INSTRUCTION(code,tag,name,len,npop,npush)     VM_TAG (tag)
  93
  94 #endif /* VM_INSTRUCTION_TO_OPCODE */
  95 #endif /* VM_INSTRUCTION_TO_LABEL */
  96 #endif /* VM_INSTRUCTION_TO_TABLE */
  97
  98 /*
  99   Local Variables:
 100   c-file-style: "gnu"
 101   End:
 102 */