2018-12-13 00:18:44 -08:00
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#include "textflag.h"
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// func Hash64(data []byte) uint64
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TEXT ·Hash64(SB),0,$0-32
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MOVQ data_base(FP), CX
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MOVQ data_len+8(FP), BX
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MOVQ $0xcbf29ce484222325, AX
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MOVQ $0x100000001b3, BP
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loop:
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CMPQ BX, $0x0
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JE done
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MOVBQZX (CX), DX
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XORQ DX, AX
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MULQ BP
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INCQ CX
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DECQ BX
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JMP loop
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done:
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MOVQ AX, ret+24(FP)
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2018-12-18 21:05:05 -08:00
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RET
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