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refractor __n2be_16

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This commit is contained in:
hathach
2014-01-24 21:51:24 +07:00
parent 275e834bbe
commit a982a52ab3
4 changed files with 47 additions and 70 deletions
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7
tinyusb/common/common.h
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@@ -110,14 +110,15 @@
#define U32_TO_U8S_LE(u32) U32_B4_U8(u32), U32_B3_U8(u32), U32_B2_U8(u32), U32_B1_U8(u32)
//------------- Endian Conversion -------------//
#define ENDIAN_BE(le32) \
(uint32_t) ( ((le32 & 0xFF) << 24) | ((le32 & 0xFF00) << 8) | ((le32 >> 8) & 0xFF00) | ((le32 >> 24) & 0xFF) )
#define ENDIAN_BE(u32) \
(uint32_t) ( (((u32) & 0xFF) << 24) | (((u32) & 0xFF00) << 8) | (((u32) >> 8) & 0xFF00) | (((u32) >> 24) & 0xFF) )
#define ENDIAN_BE16(le16) ((uint16_t) ((U16_LOW_U8(le16) << 8) | U16_HIGH_U8(le16)) )
// TODO refractor to built-in function
#ifndef __n2be_16
#define __n2be_16(u16) ((uint16_t) ((U16_LOW_U8(u16) << 8) | U16_HIGH_U8(u16)) )
#define __be2n_16(u16) __n2be_16(u16)
#endif
//--------------------------------------------------------------------+
// INLINE FUNCTION

12
tinyusb/common/compiler/compiler_gcc.h
View File

@@ -130,12 +130,14 @@
* @{
*/
//#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
// built-in function to convert 32-bit from native to Big Endian
#define __be2n __builtin_bswap32
#define __n2be __be2n
// TODO mcu specific
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define __n2be(x) __REV(x) ///< built-in function to convert 32-bit from native to Big Endian
#define __be2n(x) __n2be(x) ///< built-in function to convert 32-bit from Big Endian to native
//#define __le2be_16 __builtin_bswap16
#define __n2be_16(u16) ((uint16_t) __REV16(u16))
#define __be2n_16(u16) __n2be_16(u16)
#endif
/** @} */