src/vm_scheme.c

   1 /* Copyright (C) 2000 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 /* This file is included in vm_engine.c */
  43
  44 #include "vm-snarf.h"
  45
  46 SCM_DEFINE_VM_FUNCTION (null_p, "null?", "null?", 1, 0)
  47 {
  48   VM_SETUP_ARGS1 ();
  49   RETURN (SCM_BOOL (SCM_NULLP (a1)));
  50 }
  51
  52 SCM_DEFINE_VM_FUNCTION (cons, "cons", "cons", 2, 0)
  53 {
  54   VM_SETUP_ARGS2 ();
  55   CONS (ac, a1, a2);
  56   NEXT;
  57 }
  58
  59 SCM_DEFINE_VM_FUNCTION (list, "list", "list", 0, 1)
  60 {
  61   VM_SETUP_ARGSN ();
  62   ac = SCM_EOL;
  63   POP_LIST (nargs, ac);
  64   NEXT;
  65 }
  66
  67 SCM_DEFINE_VM_FUNCTION (car, "car", "car", 1, 0)
  68 {
  69   VM_SETUP_ARGS1 ();
  70   SCM_VALIDATE_CONS (0, a1);
  71   RETURN (SCM_CAR (a1));
  72 }
  73
  74 SCM_DEFINE_VM_FUNCTION (cdr, "cdr", "cdr", 1, 0)
  75 {
  76   VM_SETUP_ARGS1 ();
  77   SCM_VALIDATE_CONS (0, a1);
  78   RETURN (SCM_CDR (a1));
  79 }
  80
  81 SCM_DEFINE_VM_FUNCTION (not, "not", "not", 1, 0)
  82 {
  83   VM_SETUP_ARGS1 ();
  84   RETURN (SCM_BOOL (SCM_FALSEP (a1)));
  85 }
  86
  87 SCM_DEFINE_VM_FUNCTION (append, "append", "append", 0, 1)
  88 {
  89   VM_SETUP_ARGSN ();
  90   ac = SCM_EOL;
  91   POP_LIST (nargs, ac);
  92   RETURN (scm_append (ac));
  93 }
  94
  95 SCM_DEFINE_VM_FUNCTION (append_x, "append!", "append!", 0, 1)
  96 {
  97   VM_SETUP_ARGSN ();
  98   ac = SCM_EOL;
  99   POP_LIST (nargs, ac);
 100   RETURN (scm_append_x (ac));
 101 }
 102
 103 SCM_DEFINE_VM_FUNCTION (catch, "catch", "catch", 3, 0)
 104 {
 105   VM_SETUP_ARGS3 ();
 106   dynwinds = SCM_EOL;
 107 }
 108
 109 SCM_DEFINE_VM_FUNCTION (call_cc, "call-with-current-continuation", "call/cc", 1, 0)
 110 {
 111   SYNC (); /* must sync all registers */
 112   PUSH (SCM_VM_CAPTURE_CONT (vmp)); /* argument 1 */
 113   nargs = 1; /* the number of arguments */
 114   goto vm_call;
 115 }