27     Half fLo, fHi;  member
30     AI SkNx(const Half& lo, const Half& hi) : fLo(lo), fHi(hi) {}  in SkNx()
32     AI SkNx(T v) : fLo(v), fHi(v) {}  in SkNx()
34     AI SkNx(T a, T b)           : fLo(a)  , fHi(b)   { static_assert(N==2, ""); }  in SkNx()
35     AI SkNx(T a, T b, T c, T d) : fLo(a,b), fHi(c,d) { static_assert(N==4, ""); }  in SkNx()
36     AI SkNx(T a, T b, T c, T d,  T e, T f, T g, T h) : fLo(a,b,c,d), fHi(e,f,g,h) {  in SkNx()
41         : fLo(a,b,c,d, e,f,g,h), fHi(i,j,k,l, m,n,o,p) {  in SkNx()
47         return k < N/2 ? fLo[k] : fHi[k-N/2];
57         fHi.store(ptr + N/2*sizeof(T));  in store()
84         Half::Store4(ptr + 4*N/2*sizeof(T), a.fHi, b.fHi, c.fHi, d.fHi);  in Store4()
87     AI bool anyTrue() const { return fLo.anyTrue() || fHi.anyTrue(); }  in anyTrue()
88     AI bool allTrue() const { return fLo.allTrue() && fHi.allTrue(); }  in allTrue()
90     AI SkNx    abs() const { return { fLo.   abs(), fHi.   abs() }; }  in abs()
91     AI SkNx   sqrt() const { return { fLo.  sqrt(), fHi.  sqrt() }; }  in sqrt()
92     AI SkNx  rsqrt() const { return { fLo. rsqrt(), fHi. rsqrt() }; }  in rsqrt()
93     AI SkNx  floor() const { return { fLo. floor(), fHi. floor() }; }  in floor()
94     AI SkNx invert() const { return { fLo.invert(), fHi.invert() }; }  in invert()
96     AI SkNx operator!() const { return { !fLo, !fHi }; }
97     AI SkNx operator-() const { return { -fLo, -fHi }; }
98     AI SkNx operator~() const { return { ~fLo, ~fHi }; }
100     AI SkNx operator<<(int bits) const { return { fLo << bits, fHi << bits }; }
101     AI SkNx operator>>(int bits) const { return { fLo >> bits, fHi >> bits }; }
103     AI SkNx operator+(const SkNx& y) const { return { fLo + y.fLo, fHi + y.fHi }; }
104     AI SkNx operator-(const SkNx& y) const { return { fLo - y.fLo, fHi - y.fHi }; }
105     AI SkNx operator*(const SkNx& y) const { return { fLo * y.fLo, fHi * y.fHi }; }
106     AI SkNx operator/(const SkNx& y) const { return { fLo / y.fLo, fHi / y.fHi }; }
108     AI SkNx operator&(const SkNx& y) const { return { fLo & y.fLo, fHi & y.fHi }; }
109     AI SkNx operator|(const SkNx& y) const { return { fLo | y.fLo, fHi | y.fHi }; }
110     AI SkNx operator^(const SkNx& y) const { return { fLo ^ y.fLo, fHi ^ y.fHi }; }
112     AI SkNx operator==(const SkNx& y) const { return { fLo == y.fLo, fHi == y.fHi }; }
113     AI SkNx operator!=(const SkNx& y) const { return { fLo != y.fLo, fHi != y.fHi }; }
114     AI SkNx operator<=(const SkNx& y) const { return { fLo <= y.fLo, fHi <= y.fHi }; }
115     AI SkNx operator>=(const SkNx& y) const { return { fLo >= y.fLo, fHi >= y.fHi }; }
116     AI SkNx operator< (const SkNx& y) const { return { fLo <  y.fLo, fHi <  y.fHi }; }
117     AI SkNx operator> (const SkNx& y) const { return { fLo >  y.fLo, fHi >  y.fHi }; }
120         return { fLo.saturatedAdd(y.fLo), fHi.saturatedAdd(y.fHi) };  in saturatedAdd()
123         return { fLo.thenElse(t.fLo, e.fLo), fHi.thenElse(t.fHi, e.fHi) };  in thenElse()
127         return { Half::Min(x.fLo, y.fLo), Half::Min(x.fHi, y.fHi) };  in Min()
130         return { Half::Max(x.fLo, y.fLo), Half::Max(x.fHi, y.fHi) };  in Max()
300     *hi = v.fHi;
323     return { SkNx_cast<Dst>(v.fLo), SkNx_cast<Dst>(v.fHi) };