Upstream sources of nasm were obtained from and . Newer sources are downloaded from nasm-0.99.06-20071101.tar.gz was downloded as nasm_0.99.06.orig.tar.gz from ftp://ftp.zytor.com/pub/nasm/snapshots/20071101/nasm-0.99.06-20071101.tar.gz The original authors are Julian Hall and Simon Tatham . nasm was packaged for Debian by Vincent Renardias , and subsequently maintained by Matej Vela and later by Ivo Timmermans . Christian Kesselheim was the previous maintainer of this package. It's currently maintained by Anibal Monsalve Salazar Copyright Notices copyright (C) 1996 Simon Tatham and Julian Hall Copyright (C) 1999 by Andrew Zabolotny Copyright (C) 1991-1998 SciTech Software, Inc. Copyright 1996-2010 The NASM Authors Copyright 1998-2003, O'Reilly & Associates Copyright (c) 1996,99 Julian Hall. All rights reserved. Copyright (c) 2002 RET & COM Research. Copyright (C) 1998-2000 by DooM Legacy Team. copyright (C) 1998 John S. Fine NASM is now licensed under the 2-clause BSD license, also known as the simplified BSD license. Copyright 1996-2010 the NASM Authors - All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The Debian packaging is copyright (C) 1996-1999 Vincent Renardias, (C) 1999-2001 Matej Vela, (C) 2001 Ivo Timmermans, (C) 2002 Christian Kesselheim, (C) 2016 Anibal Monsalve Salazar and also released under the terms of the GNU General Public License; version 2, or any later version. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2.