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40 lines
1.1 KiB
40 lines
1.1 KiB
4 years ago
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//+build !amd64
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package flate
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const (
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// Masks for shifts with register sizes of the shift value.
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// This can be used to work around the x86 design of shifting by mod register size.
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// It can be used when a variable shift is always smaller than the register size.
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// reg8SizeMaskX - shift value is 8 bits, shifted is X
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reg8SizeMask8 = 0xff
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reg8SizeMask16 = 0xff
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reg8SizeMask32 = 0xff
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reg8SizeMask64 = 0xff
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// reg16SizeMaskX - shift value is 16 bits, shifted is X
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reg16SizeMask8 = 0xffff
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reg16SizeMask16 = 0xffff
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reg16SizeMask32 = 0xffff
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reg16SizeMask64 = 0xffff
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// reg32SizeMaskX - shift value is 32 bits, shifted is X
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reg32SizeMask8 = 0xffffffff
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reg32SizeMask16 = 0xffffffff
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reg32SizeMask32 = 0xffffffff
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reg32SizeMask64 = 0xffffffff
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// reg64SizeMaskX - shift value is 64 bits, shifted is X
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reg64SizeMask8 = 0xffffffffffffffff
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reg64SizeMask16 = 0xffffffffffffffff
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reg64SizeMask32 = 0xffffffffffffffff
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reg64SizeMask64 = 0xffffffffffffffff
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// regSizeMaskUintX - shift value is uint, shifted is X
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regSizeMaskUint8 = ^uint(0)
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regSizeMaskUint16 = ^uint(0)
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regSizeMaskUint32 = ^uint(0)
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regSizeMaskUint64 = ^uint(0)
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)
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