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Michael McLoughlin
2019-01-10 21:21:41 -08:00
parent 0e253b3753
commit f77a2e3b9e
20 changed files with 1876 additions and 1821 deletions
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30
examples/geohash/geohash.s
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@@ -4,21 +4,21 @@
// func EncodeInt(lat float64, lng float64) uint64
TEXT ·EncodeInt(SB), NOSPLIT, $0-24
MOVSD lat(FP), X0
MOVSD lng+8(FP), X1
MULSD reciprocal180<>(SB), X0
ADDSD onepointfive<>(SB), X0
MULSD reciprocal360<>(SB), X1
ADDSD onepointfive<>(SB), X1
MOVQ X0, CX
SHRQ $0x14, CX
MOVQ X1, AX
SHRQ $0x14, AX
PDEPQ mask<>(SB), CX, CX
PDEPQ mask<>(SB), AX, AX
SHLQ $0x01, AX
XORQ AX, CX
MOVQ CX, ret+16(FP)
MOVSD lat(FP), X0
MOVSD lng+8(FP), X1
MULSD reciprocal180<>(SB), X0
ADDSD onepointfive<>(SB), X0
MULSD reciprocal360<>(SB), X1
ADDSD onepointfive<>(SB), X1
MOVQ X0, CX
SHRQ $0x14, CX
MOVQ X1, AX
SHRQ $0x14, AX
PDEPQ mask<>(SB), CX, CX
PDEPQ mask<>(SB), AX, AX
SHLQ $0x01, AX
XORQ AX, CX
MOVQ CX, ret+16(FP)
RET
DATA reciprocal180<>(SB)/8, $(0.005555555555555556)