gtsocial-umbx

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regmask_amd64.go (1177B)

      1 package flate
      2 
      3 const (
      4 	// Masks for shifts with register sizes of the shift value.
      5 	// This can be used to work around the x86 design of shifting by mod register size.
      6 	// It can be used when a variable shift is always smaller than the register size.
      7 
      8 	// reg8SizeMaskX - shift value is 8 bits, shifted is X
      9 	reg8SizeMask8  = 7
     10 	reg8SizeMask16 = 15
     11 	reg8SizeMask32 = 31
     12 	reg8SizeMask64 = 63
     13 
     14 	// reg16SizeMaskX - shift value is 16 bits, shifted is X
     15 	reg16SizeMask8  = reg8SizeMask8
     16 	reg16SizeMask16 = reg8SizeMask16
     17 	reg16SizeMask32 = reg8SizeMask32
     18 	reg16SizeMask64 = reg8SizeMask64
     19 
     20 	// reg32SizeMaskX - shift value is 32 bits, shifted is X
     21 	reg32SizeMask8  = reg8SizeMask8
     22 	reg32SizeMask16 = reg8SizeMask16
     23 	reg32SizeMask32 = reg8SizeMask32
     24 	reg32SizeMask64 = reg8SizeMask64
     25 
     26 	// reg64SizeMaskX - shift value is 64 bits, shifted is X
     27 	reg64SizeMask8  = reg8SizeMask8
     28 	reg64SizeMask16 = reg8SizeMask16
     29 	reg64SizeMask32 = reg8SizeMask32
     30 	reg64SizeMask64 = reg8SizeMask64
     31 
     32 	// regSizeMaskUintX - shift value is uint, shifted is X
     33 	regSizeMaskUint8  = reg8SizeMask8
     34 	regSizeMaskUint16 = reg8SizeMask16
     35 	regSizeMaskUint32 = reg8SizeMask32
     36 	regSizeMaskUint64 = reg8SizeMask64
     37 )