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sm9/bn256: arm64 gfp2MulU

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Sun Yimin 2023-07-25 08:21:44 +08:00 committed by GitHub
parent ecf14648e9
commit c62d6daf74
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2 changed files with 59 additions and 25 deletions
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27
sm9/bn256/gfp2_g1_arm64.go
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@ -8,29 +8,10 @@ package bn256
//go:noescape
func gfp2Mul(c, a, b *gfP2)
func gfp2MulU(c, a, b *gfP2) {
tmp := &gfP2{}
tx := &tmp.x
ty := &tmp.y
v0, v1 := &gfP{}, &gfP{}
gfpMul(v0, &a.y, &b.y)
gfpMul(v1, &a.x, &b.x)
gfpAdd(tx, &a.x, &a.y)
gfpAdd(ty, &b.x, &b.y)
gfpMul(ty, tx, ty)
gfpSub(ty, ty, v0)
gfpSub(ty, ty, v1)
gfpDouble(ty, ty)
gfpNeg(ty, ty)
gfpSub(tx, v0, v1)
gfpSub(tx, tx, v1)
gfp2Copy(c, tmp)
}
// gfP2 multiplication. c = a*b*u
//
//go:noescape
func gfp2MulU(c, a, b *gfP2)
func gfp2Square(c, a *gfP2) {
tmp := &gfP2{}

55
sm9/bn256/gfp2_g1_arm64.s
View File

@ -515,8 +515,8 @@ TEXT ·gfp2Mul(SB),NOSPLIT,$104-24
LDx (y1in)
LDy (y2in)
CALL gfpMulInternal(SB)
STy (tmp0)
LDx (x1in)
LDy (x2in)
CALL gfpMulInternal(SB)
@ -548,3 +548,56 @@ TEXT ·gfp2Mul(SB),NOSPLIT,$104-24
STx (y3out)
RET
// func gfp2MulU(c, a, b *gfP2)
TEXT ·gfp2MulU(SB),NOSPLIT,$104-24
MOVD in1+8(FP), a_ptr
MOVD in2+16(FP), b_ptr
MOVD ·np+0x00(SB), hlp1
LDP ·p2+0x00(SB), (const0, const1)
LDP ·p2+0x10(SB), (const2, const3)
LDx (y1in)
LDy (y2in)
CALL gfpMulInternal(SB)
STy (tmp0)
LDx (x1in)
LDy (x2in)
CALL gfpMulInternal(SB)
STy (tmp1)
LDx (x1in)
LDy (y1in)
gfpAddInline
STx (tmp2)
LDx (x2in)
LDy (y2in)
gfpAddInline
LDy (tmp2)
CALL gfpMulInternal(SB)
LDx (tmp0)
CALL gfpSubInternal(SB)
x2y
LDx (tmp1)
CALL gfpSubInternal(SB)
x2y
gfpMulBy2Inline
MOVD $0, y0
MOVD $0, y1
MOVD $0, y2
MOVD $0, y3
CALL gfpSubInternal(SB)
MOVD res+0(FP), res_ptr // not use hlp1 any more
STx (y3out)
LDy (tmp1)
gfpMulBy2Inline
LDy (tmp0)
CALL gfpSubInternal(SB)
STx (x3out)
RET