/*      $NetBSD: bf_enc_586.S,v 1.5 2007/12/11 23:13:57 lukem Exp $     */

/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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 licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

/*
 * Modified from the output of `perl bf-586.pl elf' by
 * Jason R. Thorpe <thorpej@zembu.com> and Thor Lancelot Simon
 * <tls@NetBSD.org>
 */

#include <i386/include/asm.h>
__KERNEL_RCSID(1, "$NetBSD: bf_enc_586.S,v 1.5 2007/12/11 23:13:57 lukem Exp $");

ENTRY(BF_encrypt)
        pushl   %ebp
        pushl   %ebx
        movl    12(%esp),       %ebx
        movl    16(%esp),       %ebp
        pushl   %esi
        pushl   %edi
        /* Load the 2 words */
        movl    (%ebx),         %edi
        movl    4(%ebx),        %esi
        xorl    %eax,           %eax
        movl    (%ebp),         %ebx
        xorl    %ecx,           %ecx
        xorl    %ebx,           %edi

        /* Round 0 */
        movl    4(%ebp),        %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 1 */
        movl    8(%ebp),        %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 2 */
        movl    12(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 3 */
        movl    16(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 4 */
        movl    20(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 5 */
        movl    24(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 6 */
        movl    28(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 7 */
        movl    32(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 8 */
        movl    36(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 9 */
        movl    40(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 10 */
        movl    44(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 11 */
        movl    48(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 12 */
        movl    52(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 13 */
        movl    56(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 14 */
        movl    60(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 15 */
        movl    64(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        # Load parameter 0 (16) enc=1
        movl    20(%esp),       %eax
        xorl    %ebx,           %edi
        movl    68(%ebp),       %edx
        xorl    %edx,           %esi
        movl    %edi,           4(%eax)
        movl    %esi,           (%eax)
        popl    %edi
        popl    %esi
        popl    %ebx
        popl    %ebp
        ret
.L_BF_encrypt_end:
        .size   _C_LABEL(BF_encrypt),.L_BF_encrypt_end-_C_LABEL(BF_encrypt)

ENTRY(BF_decrypt)
        pushl   %ebp
        pushl   %ebx
        movl    12(%esp),       %ebx
        movl    16(%esp),       %ebp
        pushl   %esi
        pushl   %edi
        # Load the 2 words
        movl    (%ebx),         %edi
        movl    4(%ebx),        %esi
        xorl    %eax,           %eax
        movl    68(%ebp),       %ebx
        xorl    %ecx,           %ecx
        xorl    %ebx,           %edi

        /* Round 16 */
        movl    64(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 15 */
        movl    60(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 14 */
        movl    56(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 13 */
        movl    52(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 12 */
        movl    48(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 11 */
        movl    44(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 10 */
        movl    40(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 9 */
        movl    36(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 8 */
        movl    32(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 7 */
        movl    28(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 6 */
        movl    24(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 5 */
        movl    20(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 4 */
        movl    16(%ebp),       %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 3 */
        movl    12(%ebp),       %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %edi

        /* Round 2 */
        movl    8(%ebp),        %edx
        movl    %edi,           %ebx
        xorl    %edx,           %esi
        shrl    $16,            %ebx
        movl    %edi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        xorl    %eax,           %eax
        xorl    %ebx,           %esi

        /* Round 1 */
        movl    4(%ebp),        %edx
        movl    %esi,           %ebx
        xorl    %edx,           %edi
        shrl    $16,            %ebx
        movl    %esi,           %edx
        movb    %bh,            %al
        andl    $255,           %ebx
        movb    %dh,            %cl
        andl    $255,           %edx
        movl    72(%ebp,%eax,4),%eax
        movl    1096(%ebp,%ebx,4),%ebx
        addl    %eax,           %ebx
        movl    2120(%ebp,%ecx,4),%eax
        xorl    %eax,           %ebx
        movl    3144(%ebp,%edx,4),%edx
        addl    %edx,           %ebx
        # Load parameter 0 (1) enc=0
        movl    20(%esp),       %eax
        xorl    %ebx,           %edi
        movl    (%ebp),         %edx
        xorl    %edx,           %esi
        movl    %edi,           4(%eax)
        movl    %esi,           (%eax)
        popl    %edi
        popl    %esi
        popl    %ebx
        popl    %ebp
        ret
.L_BF_decrypt_end:
        .size   _C_LABEL(BF_decrypt),.L_BF_decrypt_end-_C_LABEL(BF_decrypt)