new file mode 100644
--- /dev/null
+++ b/src/OPERATORS/op-bm-bm.cc
@@ -0,0 +1,55 @@
+/*
+
+Copyright (C) 1996, 1997 John W. Eaton
+
+This file is part of Octave.
+
+Octave 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.
+
+Octave 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 Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#if defined (__GNUG__)
+#pragma implementation
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "gripes.h"
+#include "ov.h"
+#include "ov-bool-mat.h"
+#include "ov-typeinfo.h"
+#include "ops.h"
+#include "xdiv.h"
+#include "xpow.h"
+
+// bool matrix by bool matrix ops.
+
+DEFBINOP_OP (eq, bool_matrix, bool_matrix, ==)
+DEFBINOP_OP (ne, bool_matrix, bool_matrix, !=)
+
+void
+install_bm_bm_ops (void)
+{
+  INSTALL_BINOP (eq, octave_bool_matrix, octave_bool_matrix, eq);
+  INSTALL_BINOP (ne, octave_bool_matrix, octave_bool_matrix, ne);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/