diff options
Diffstat (limited to 'firmware/target/mips/mipsr2-endian.h')
-rw-r--r-- | firmware/target/mips/mipsr2-endian.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/firmware/target/mips/mipsr2-endian.h b/firmware/target/mips/mipsr2-endian.h new file mode 100644 index 0000000000..08992bfcdd --- /dev/null +++ b/firmware/target/mips/mipsr2-endian.h | |||
@@ -0,0 +1,44 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2021 Aidan MacDonald | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | #ifndef __MIPSR2_ENDIAN_H__ | ||
23 | #define __MIPSR2_ENDIAN_H__ | ||
24 | |||
25 | #include <stdint.h> | ||
26 | |||
27 | static inline uint32_t swap32_hw(uint32_t value) | ||
28 | { | ||
29 | register uint32_t out; | ||
30 | __asm__ ("wsbh %0, %1\n" | ||
31 | "rotr %0, %0, 16\n" | ||
32 | : "=r"(out) : "r"(value)); | ||
33 | return out; | ||
34 | } | ||
35 | |||
36 | static inline uint16_t swap16_hw(uint16_t value) | ||
37 | { | ||
38 | register uint32_t out, in; | ||
39 | in = value; | ||
40 | __asm__ ("wsbh %0, %1" : "=r"(out) : "r"(in)); | ||
41 | return (uint16_t)out; | ||
42 | } | ||
43 | |||
44 | #endif /* __MIPSR2_ENDIAN_H__ */ | ||