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Merge remote-tracking branch 'sweil/tci' into staging

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# By Stefan Weil
# Via Stefan Weil
* sweil/tci:
  misc: Use new rotate functions
  bitops: Add rotate functions (rol8, ror8, ...)
  tci: Add implementation of rotl_i64, rotr_i64

Message-id: 1380137693-3729-1-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
This commit is contained in:
Anthony Liguori 2013-10-09 07:50:37 -07:00
commit ce079abb41
5 changed files with 96 additions and 13 deletions
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80
include/qemu/bitops.h
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@ -183,6 +183,86 @@ static inline unsigned long hweight_long(unsigned long w)
return count;
}
/**
* rol8 - rotate an 8-bit value left
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint8_t rol8(uint8_t word, unsigned int shift)
{
return (word << shift) | (word >> (8 - shift));
}
/**
* ror8 - rotate an 8-bit value right
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint8_t ror8(uint8_t word, unsigned int shift)
{
return (word >> shift) | (word << (8 - shift));
}
/**
* rol16 - rotate a 16-bit value left
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint16_t rol16(uint16_t word, unsigned int shift)
{
return (word << shift) | (word >> (16 - shift));
}
/**
* ror16 - rotate a 16-bit value right
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint16_t ror16(uint16_t word, unsigned int shift)
{
return (word >> shift) | (word << (16 - shift));
}
/**
* rol32 - rotate a 32-bit value left
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint32_t rol32(uint32_t word, unsigned int shift)
{
return (word << shift) | (word >> (32 - shift));
}
/**
* ror32 - rotate a 32-bit value right
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint32_t ror32(uint32_t word, unsigned int shift)
{
return (word >> shift) | (word << (32 - shift));
}
/**
* rol64 - rotate a 64-bit value left
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint64_t rol64(uint64_t word, unsigned int shift)
{
return (word << shift) | (word >> (64 - shift));
}
/**
* ror64 - rotate a 64-bit value right
* @word: value to rotate
* @shift: bits to roll
*/
static inline uint64_t ror64(uint64_t word, unsigned int shift)
{
return (word >> shift) | (word << (64 - shift));
}
/**
* extract32:
* @value: the value to extract the bit field from