optimize scm_from_latin1_symboln

[bpt/guile.git] / libguile / vm-i-loader.c

/* Copyright (C) 2001,2008,2009,2010 Free Software Foundation, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

/* FIXME! Need to check that the fetch is within the current program */

/* This file is included in vm_engine.c */

VM_DEFINE_LOADER (101, load_number, "load-number")
{
  size_t len;

  FETCH_LENGTH (len);
  SYNC_REGISTER ();
  PUSH (scm_string_to_number (scm_from_locale_stringn ((char *)ip, len),
			      SCM_UNDEFINED /* radix = 10 */));
  /* Was: scm_istring2number (ip, len, 10)); */
  ip += len;
  NEXT;
}

VM_DEFINE_LOADER (102, load_string, "load-string")
{
  size_t len;
  char *buf;

  FETCH_LENGTH (len);
  SYNC_REGISTER ();
  PUSH (scm_i_make_string (len, &buf));
  memcpy (buf, (char *) ip, len);
  ip += len;
  NEXT;
}

VM_DEFINE_LOADER (103, load_symbol, "load-symbol")
{
  size_t len;
  FETCH_LENGTH (len);
  SYNC_REGISTER ();
  /* FIXME: should be scm_from_latin1_symboln */
  PUSH (scm_from_locale_symboln ((const char*)ip, len));
  ip += len;
  NEXT;
}

VM_DEFINE_LOADER (104, load_program, "load-program")
{
  scm_t_uint32 len;
  SCM objs, objcode;

  POP (objs);
  SYNC_REGISTER ();

  if (scm_is_vector (objs) && scm_is_false (scm_c_vector_ref (objs, 0)))
    scm_c_vector_set_x (objs, 0, scm_current_module ());

  objcode = scm_c_make_objcode_slice (SCM_PROGRAM_OBJCODE (fp[-1]), ip);
  len = sizeof (struct scm_objcode) + SCM_OBJCODE_TOTAL_LEN (objcode);

  PUSH (scm_make_program (objcode, objs, SCM_BOOL_F));

  ip += len;

  NEXT;
}

VM_DEFINE_INSTRUCTION (105, link_now, "link-now", 0, 1, 1)
{
  SCM what;
  POP (what);
  SYNC_REGISTER ();
  PUSH (resolve_variable (what, scm_current_module ()));
  NEXT;
}

VM_DEFINE_LOADER (106, load_array, "load-array")
{
  SCM type, shape;
  size_t len;
  FETCH_LENGTH (len);
  POP (shape);
  POP (type);
  SYNC_REGISTER ();
  PUSH (scm_from_contiguous_typed_array (type, shape, ip, len));
  ip += len;
  NEXT;
}

VM_DEFINE_LOADER (107, load_wide_string, "load-wide-string")
{
  size_t len;
  scm_t_wchar *wbuf;

  FETCH_LENGTH (len);
  if (SCM_UNLIKELY (len % 4))
    {
      finish_args = scm_list_1 (scm_from_size_t (len));
      goto vm_error_bad_wide_string_length;
    }

  SYNC_REGISTER ();
  PUSH (scm_i_make_wide_string (len / 4, &wbuf));
  memcpy ((char *) wbuf, (char *) ip, len);
  ip += len;
  NEXT;
}

/*
(defun renumber-ops ()
  "start from top of buffer and renumber 'VM_DEFINE_FOO (\n' sequences"
  (interactive "")
  (save-excursion
    (let ((counter 100)) (goto-char (point-min))
      (while (re-search-forward "^VM_DEFINE_[^ ]+ (\\([^,]+\\)," (point-max) t)
        (replace-match
         (number-to-string (setq counter (1+ counter)))
          t t nil 1)))))
*/

/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/