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1 | /* |
2 | * Copyright (c) 2010 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 | ||
21 | #ifndef AVUTIL_TOMI_INTREADWRITE_H | |
22 | #define AVUTIL_TOMI_INTREADWRITE_H | |
23 | ||
24 | #include <stdint.h> | |
25 | ||
26 | #include "config.h" | |
27 | #include "libavutil/attributes.h" | |
28 | ||
29 | #define AV_RB16 AV_RB16 | |
30 | static av_always_inline uint16_t AV_RB16(const void *p) | |
31 | { | |
32 | uint16_t v; | |
33 | __asm__ ("loadacc, (%1+) \n\t" | |
34 | "rol8 \n\t" | |
35 | "storeacc, %0 \n\t" | |
36 | "loadacc, (%1+) \n\t" | |
37 | "add, %0 \n\t" | |
38 | : "=r"(v), "+a"(p)); | |
39 | return v; | |
40 | } | |
41 | ||
42 | #define AV_WB16 AV_WB16 | |
43 | static av_always_inline void AV_WB16(void *p, uint16_t v) | |
44 | { | |
45 | __asm__ volatile ("loadacc, %1 \n\t" | |
46 | "lsr8 \n\t" | |
47 | "storeacc, (%0+) \n\t" | |
48 | "loadacc, %1 \n\t" | |
49 | "storeacc, (%0+) \n\t" | |
50 | : "+&a"(p) : "r"(v)); | |
51 | } | |
52 | ||
53 | #define AV_RL16 AV_RL16 | |
54 | static av_always_inline uint16_t AV_RL16(const void *p) | |
55 | { | |
56 | uint16_t v; | |
57 | __asm__ ("loadacc, (%1+) \n\t" | |
58 | "storeacc, %0 \n\t" | |
59 | "loadacc, (%1+) \n\t" | |
60 | "rol8 \n\t" | |
61 | "add, %0 \n\t" | |
62 | : "=r"(v), "+a"(p)); | |
63 | return v; | |
64 | } | |
65 | ||
66 | #define AV_WL16 AV_WL16 | |
67 | static av_always_inline void AV_WL16(void *p, uint16_t v) | |
68 | { | |
69 | __asm__ volatile ("loadacc, %1 \n\t" | |
70 | "storeacc, (%0+) \n\t" | |
71 | "lsr8 \n\t" | |
72 | "storeacc, (%0+) \n\t" | |
73 | : "+&a"(p) : "r"(v)); | |
74 | } | |
75 | ||
76 | #define AV_RB32 AV_RB32 | |
77 | static av_always_inline uint32_t AV_RB32(const void *p) | |
78 | { | |
79 | uint32_t v; | |
80 | __asm__ ("loadacc, (%1+) \n\t" | |
81 | "rol8 \n\t" | |
82 | "rol8 \n\t" | |
83 | "rol8 \n\t" | |
84 | "storeacc, %0 \n\t" | |
85 | "loadacc, (%1+) \n\t" | |
86 | "rol8 \n\t" | |
87 | "rol8 \n\t" | |
88 | "add, %0 \n\t" | |
89 | "loadacc, (%1+) \n\t" | |
90 | "rol8 \n\t" | |
91 | "add, %0 \n\t" | |
92 | "loadacc, (%1+) \n\t" | |
93 | "add, %0 \n\t" | |
94 | : "=r"(v), "+a"(p)); | |
95 | return v; | |
96 | } | |
97 | ||
98 | #define AV_WB32 AV_WB32 | |
99 | static av_always_inline void AV_WB32(void *p, uint32_t v) | |
100 | { | |
101 | __asm__ volatile ("loadacc, #4 \n\t" | |
102 | "add, %0 \n\t" | |
103 | "loadacc, %1 \n\t" | |
104 | "storeacc, (-%0) \n\t" | |
105 | "lsr8 \n\t" | |
106 | "storeacc, (-%0) \n\t" | |
107 | "lsr8 \n\t" | |
108 | "storeacc, (-%0) \n\t" | |
109 | "lsr8 \n\t" | |
110 | "storeacc, (-%0) \n\t" | |
111 | : "+&a"(p) : "r"(v)); | |
112 | } | |
113 | ||
114 | #define AV_RL32 AV_RL32 | |
115 | static av_always_inline uint32_t AV_RL32(const void *p) | |
116 | { | |
117 | uint32_t v; | |
118 | __asm__ ("loadacc, (%1+) \n\t" | |
119 | "storeacc, %0 \n\t" | |
120 | "loadacc, (%1+) \n\t" | |
121 | "rol8 \n\t" | |
122 | "add, %0 \n\t" | |
123 | "loadacc, (%1+) \n\t" | |
124 | "rol8 \n\t" | |
125 | "rol8 \n\t" | |
126 | "add, %0 \n\t" | |
127 | "loadacc, (%1+) \n\t" | |
128 | "rol8 \n\t" | |
129 | "rol8 \n\t" | |
130 | "rol8 \n\t" | |
131 | "add, %0 \n\t" | |
132 | : "=r"(v), "+a"(p)); | |
133 | return v; | |
134 | } | |
135 | ||
136 | #define AV_WL32 AV_WL32 | |
137 | static av_always_inline void AV_WL32(void *p, uint32_t v) | |
138 | { | |
139 | __asm__ volatile ("loadacc, %1 \n\t" | |
140 | "storeacc, (%0+) \n\t" | |
141 | "lsr8 \n\t" | |
142 | "storeacc, (%0+) \n\t" | |
143 | "lsr8 \n\t" | |
144 | "storeacc, (%0+) \n\t" | |
145 | "lsr8 \n\t" | |
146 | "storeacc, (%0+) \n\t" | |
147 | : "+&a"(p) : "r"(v)); | |
148 | } | |
149 | ||
150 | #endif /* AVUTIL_TOMI_INTREADWRITE_H */ |