ARM: check for VFP register arguments
[libav.git] / libavcodec / arm / asm.S
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1/*
2 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
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21#include "config.h"
22
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23 .macro require8, val=1
24 .eabi_attribute 24, \val
25 .endm
26
27 .macro preserve8, val=1
28 .eabi_attribute 25, \val
29 .endm
30
31 .macro function name, export=0
32.if \export
33 .global \name
34.endif
35 .type \name, %function
36 .func \name
37\name:
38 .endm
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39
40 .macro movrel rd, val
b250f9c6 41#if HAVE_ARMV6T2 && !CONFIG_SHARED
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42 movw \rd, #:lower16:\val
43 movt \rd, #:upper16:\val
44#else
45 ldr \rd, =\val
46#endif
47 .endm
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48
49#if HAVE_VFP_ARGS
50 .eabi_attribute 28, 1
51# define VFP
52# define NOVFP @
53#else
54# define VFP @
55# define NOVFP
56#endif