libguile/vm-i-loader.c

   1 /* Copyright (C) 2001,2008,2009,2010,2011,2012 Free Software Foundation, Inc.
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public License
   5  * as published by the Free Software Foundation; either version 3 of
   6  * the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16  * 02110-1301 USA
  17  */
  18
  19 /* FIXME! Need to check that the fetch is within the current program */
  20
  21 /* This file is included in vm_engine.c */
  22
  23 VM_DEFINE_LOADER (101, load_number, "load-number")
  24 {
  25   size_t len;
  26
  27   FETCH_LENGTH (len);
  28   SYNC_REGISTER ();
  29   PUSH (scm_string_to_number (scm_from_locale_stringn ((char *)ip, len),
  30                               SCM_UNDEFINED /* radix = 10 */));
  31   /* Was: scm_istring2number (ip, len, 10)); */
  32   ip += len;
  33   NEXT;
  34 }
  35
  36 VM_DEFINE_LOADER (102, load_string, "load-string")
  37 {
  38   size_t len;
  39   char *buf;
  40
  41   FETCH_LENGTH (len);
  42   SYNC_REGISTER ();
  43   PUSH (scm_i_make_string (len, &buf, 1));
  44   memcpy (buf, (char *) ip, len);
  45   ip += len;
  46   NEXT;
  47 }
  48
  49 VM_DEFINE_LOADER (103, load_symbol, "load-symbol")
  50 {
  51   size_t len;
  52   FETCH_LENGTH (len);
  53   SYNC_REGISTER ();
  54   /* FIXME: should be scm_from_latin1_symboln */
  55   PUSH (scm_from_latin1_symboln ((const char*)ip, len));
  56   ip += len;
  57   NEXT;
  58 }
  59
  60 VM_DEFINE_LOADER (104, load_program, "load-program")
  61 {
  62   scm_t_uint32 len;
  63   SCM objs, objcode;
  64
  65   POP (objs);
  66   SYNC_REGISTER ();
  67
  68   if (scm_is_vector (objs) && scm_is_false (scm_c_vector_ref (objs, 0)))
  69     scm_c_vector_set_x (objs, 0, scm_current_module ());
  70
  71   objcode = scm_c_make_objcode_slice (SCM_PROGRAM_OBJCODE (fp[-1]), ip);
  72   len = sizeof (struct scm_objcode) + SCM_OBJCODE_TOTAL_LEN (objcode);
  73
  74   PUSH (scm_make_program (objcode, objs, SCM_BOOL_F));
  75
  76   ip += len;
  77
  78   NEXT;
  79 }
  80
  81 VM_DEFINE_INSTRUCTION (105, link_now, "link-now", 0, 1, 1)
  82 {
  83   SCM what;
  84   POP (what);
  85   SYNC_REGISTER ();
  86   PUSH (resolve_variable (what, scm_current_module ()));
  87   NEXT;
  88 }
  89
  90 VM_DEFINE_LOADER (106, load_array, "load-array")
  91 {
  92   SCM type, shape;
  93   size_t len;
  94   FETCH_LENGTH (len);
  95   POP2 (shape, type);
  96   SYNC_REGISTER ();
  97   PUSH (scm_from_contiguous_typed_array (type, shape, ip, len));
  98   ip += len;
  99   NEXT;
 100 }
 101
 102 VM_DEFINE_LOADER (107, load_wide_string, "load-wide-string")
 103 {
 104   size_t len;
 105   scm_t_wchar *wbuf;
 106
 107   FETCH_LENGTH (len);
 108   VM_ASSERT ((len % 4) == 0,
 109              vm_error_bad_wide_string_length (len));
 110
 111   SYNC_REGISTER ();
 112   PUSH (scm_i_make_wide_string (len / 4, &wbuf, 1));
 113   memcpy ((char *) wbuf, (char *) ip, len);
 114   ip += len;
 115   NEXT;
 116 }
 117
 118 /*
 119 (defun renumber-ops ()
 120   "start from top of buffer and renumber 'VM_DEFINE_FOO (\n' sequences"
 121   (interactive "")
 122   (save-excursion
 123     (let ((counter 100)) (goto-char (point-min))
 124       (while (re-search-forward "^VM_DEFINE_[^ ]+ (\\([^,]+\\)," (point-max) t)
 125         (replace-match
 126          (number-to-string (setq counter (1+ counter)))
 127           t t nil 1)))))
 128 */
 129
 130 /*
 131   Local Variables:
 132   c-file-style: "gnu"
 133   End:
 134 */