/* leave.ash -- LZO assembler stuff

   This file is part of the LZO real-time data compression library.

   Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
   Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
   All Rights Reserved.

   The LZO library 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 of
   the License, or (at your option) any later version.

   The LZO 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with the LZO library; see the file COPYING.
   If not, write to the Free Software Foundation, Inc.,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

   Markus F.X.J. Oberhumer
   <markus@oberhumer.com>
   http://www.oberhumer.com/opensource/lzo/
 */


/***********************************************************************
//
************************************************************************/

/* check uncompressed size */
#if defined(LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT)
        cmpl    OUTEND,%edi
        ja      .L_output_overrun
#endif

/* check compressed size */
        movl    INP,%edx
        addl    INS,%edx
        cmpl    %edx,%esi       /* check compressed size */
        ja      .L_input_overrun
        jb      .L_input_not_consumed

.L_leave:
        subl    OUTP,%edi       /* write back the uncompressed size */
        movl    OUTS,%edx
        movl    %edi,(%edx)

        negl    %eax
        addl    $12,%esp
#if __SIZEOF_POINTER__ == 4
        popl    %edx
        popl    %ecx
        popl    %ebx
        popl    %esi
        popl    %edi
        popl    %ebp
#elif __SIZEOF_POINTER__ == 8
        pop    %rdx
        pop    %rcx
        pop    %rbx
        pop    %rsi
        pop    %rdi
        pop    %rbp
#else
#error "unsupported architecture"
#endif
#if 1
        ret
#else
        jmp     .L_end
#endif


.L_error:
        movl    $1,%eax         /* LZO_E_ERROR */
        jmp     .L_leave

.L_input_not_consumed:
        movl    $8,%eax         /* LZO_E_INPUT_NOT_CONSUMED */
        jmp     .L_leave

.L_input_overrun:
        movl    $4,%eax         /* LZO_E_INPUT_OVERRUN */
        jmp     .L_leave

#if defined(LZO_TEST_DECOMPRESS_OVERRUN_OUTPUT)
.L_output_overrun:
        movl    $5,%eax         /* LZO_E_OUTPUT_OVERRUN */
        jmp     .L_leave
#endif

#if defined(LZO_TEST_DECOMPRESS_OVERRUN_LOOKBEHIND)
.L_lookbehind_overrun:
        movl    $6,%eax         /* LZO_E_LOOKBEHIND_OVERRUN */
        jmp     .L_leave
#endif

#if defined(LZO_DEBUG)
.L_assert_fail:
        movl    $99,%eax
        jmp     .L_leave
#endif

.L_end:


/*
vi:ts=4
*/

