2018-12-29 13:04:17 +00:00
|
|
|
#include "textflag.h"
|
|
|
|
|
|
|
|
|
|
// func mulBitRight(c00, c01, c10, c11, e *[2]uint64)
|
|
|
|
|
TEXT ·mulBitRight(SB),NOSPLIT,$0
|
|
|
|
|
MOVQ c00+0(FP), AX
|
|
|
|
|
MOVUPD (AX), X0
|
|
|
|
|
MOVUPD X0, X8 // remember c00 value
|
|
|
|
|
MOVQ c01+8(FP), BX
|
|
|
|
|
MOVUPD (BX), X1
|
|
|
|
|
MOVQ c10+16(FP), CX
|
|
|
|
|
MOVUPD (CX), X2
|
|
|
|
|
MOVUPD X2, X9 // remember c10 value
|
|
|
|
|
MOVQ c11+24(FP), DX
|
|
|
|
|
MOVUPD (DX), X3
|
|
|
|
|
|
|
|
|
|
// c00 *= 2
|
|
|
|
|
VPSLLQ $1, X0, X5
|
|
|
|
|
VPALIGNR $8, X5, X0, X6
|
|
|
|
|
PSRLQ $63, X6
|
|
|
|
|
MOVUPD ·x127x63(SB), X7
|
|
|
|
|
ANDPD X5, X7
|
|
|
|
|
VPUNPCKHQDQ X7, X7, X7
|
|
|
|
|
XORPD X6, X5
|
|
|
|
|
XORPD X7, X5
|
|
|
|
|
MOVUPD X5, X0
|
|
|
|
|
|
2019-01-03 08:04:43 +00:00
|
|
|
// c00 += c01
|
|
|
|
|
XORPD X1, X0
|
|
|
|
|
MOVUPD X0, (AX)
|
2018-12-29 13:04:17 +00:00
|
|
|
|
2019-01-03 08:04:43 +00:00
|
|
|
// c10 *= 2
|
|
|
|
|
VPSLLQ $1, X2, X5
|
2018-12-29 13:04:17 +00:00
|
|
|
VPALIGNR $8, X5, X2, X6
|
|
|
|
|
PSRLQ $63, X6
|
|
|
|
|
MOVUPD ·x127x63(SB), X7
|
|
|
|
|
ANDPD X5, X7
|
|
|
|
|
VPUNPCKHQDQ X7, X7, X7
|
|
|
|
|
XORPD X6, X5
|
|
|
|
|
XORPD X7, X5
|
|
|
|
|
MOVUPD X5, X2
|
|
|
|
|
|
2019-01-03 08:04:43 +00:00
|
|
|
// c10 += c11
|
2018-12-29 13:04:17 +00:00
|
|
|
XORPD X3, X2
|
|
|
|
|
MOVUPD X2, (CX)
|
|
|
|
|
|
|
|
|
|
MOVQ e+32(FP), AX
|
|
|
|
|
MOVUPD (AX), X5
|
|
|
|
|
|
|
|
|
|
// c01 = c00 + e
|
|
|
|
|
VANDPD X0, X5, X1
|
|
|
|
|
|
|
|
|
|
// c01 += X8 (old c00)
|
|
|
|
|
XORPD X8, X1
|
|
|
|
|
MOVUPD X1, (BX)
|
|
|
|
|
|
|
|
|
|
// c11 = c10 + e
|
2019-01-03 08:04:43 +00:00
|
|
|
VANDPD X2, X5, X3
|
2018-12-29 13:04:17 +00:00
|
|
|
|
|
|
|
|
// c11 += X9 (old c10)
|
2019-01-03 08:04:43 +00:00
|
|
|
XORPD X9, X3
|
|
|
|
|
MOVUPD X3, (DX)
|
|
|
|
|
RET
|
