1 ;*****************************************************************************
2 ;* x86-optimized AC-3 DSP utils
3 ;* Copyright (c) 2011 Justin Ruggles
5 ;* This file is part of FFmpeg.
7 ;* FFmpeg is free software; you can redistribute it and/or
8 ;* modify it under the terms of the GNU Lesser General Public
9 ;* License as published by the Free Software Foundation; either
10 ;* version 2.1 of the License, or (at your option) any later version.
12 ;* FFmpeg is distributed in the hope that it will be useful,
13 ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 ;* Lesser General Public License for more details.
17 ;* You should have received a copy of the GNU Lesser General Public
18 ;* License along with FFmpeg; if not, write to the Free Software
19 ;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 ;******************************************************************************
23 %include "x86util.asm"
27 ;-----------------------------------------------------------------------------
28 ; void ff_ac3_exponent_min(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
29 ;-----------------------------------------------------------------------------
31 %macro AC3_EXPONENT_MIN 1
32 cglobal ac3_exponent_min_%1, 3,4,2, exp, reuse_blks, expn, offset
37 mov offsetq, reuse_blksq
38 mova m0, [expq+offsetq]
42 PMINUB m0, [expq+offsetq], m1
53 %define PMINUB PMINUB_MMX
58 %define PMINUB PMINUB_MMXEXT
59 %define LOOP_ALIGN ALIGN 16
60 AC3_EXPONENT_MIN mmxext