1/*
2 * Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "asm.S"
22
23function ff_ac3_update_bap_counts_arm, export=1
24        push            {lr}
25        ldrb            lr,  [r1], #1
261:
27        lsl             r3,  lr,  #1
28        ldrh            r12, [r0, r3]
29        subs            r2,  r2,  #1
30        it              gt
31        ldrbgt          lr,  [r1], #1
32        add             r12, r12, #1
33        strh            r12, [r0, r3]
34        bgt             1b
35        pop             {pc}
36endfunc
37