17 	uint64_t hi;  member
26 	u.i2.hi = x.hi;  in mkldbl()
28 	u.i2.hi &= 0x0000ffffffffffff;  in mkldbl()
29 	u.i2.hi |= top << 48;  in mkldbl()
46 	r.hi = u.i2.hi;  in asu128()
51 	r.hi = u.i.m>>15;  in asu128()
52 	r.hi &= 0x0000ffffffffffff;  in asu128()
53 	r.hi |= (uint64_t)u.i.se << 48;  in asu128()
78 	r.hi = a.hi;  in add64()
80 		r.hi++;  in add64()
88 	r.hi = a.hi + b.hi;  in add128()
90 		r.hi++;  in add128()
98 	r.hi = a.hi;  in sub64()
100 		r.hi--;  in sub64()
108 	r.hi = a.hi - b.hi;  in sub128()
110 		r.hi--;  in sub128()
120 		a.hi = a.lo<<(n-64);  in lsh()
123 		a.hi = (a.hi<<n) | (a.lo>>(64-n));  in lsh()
135 		a.lo = a.hi>>(n-64);  in rsh()
136 		a.hi = 0;  in rsh()
138 		a.lo = (a.lo>>n) | (a.hi<<(64-n));  in rsh()
139 		a.hi = a.hi>>n;  in rsh()
154 	r.hi = ahi*bhi + (ahi*blo>>32) + (alo*bhi>>32) + (lo1>>32);  in mul64_128()
162 	u128 hi = mul64_128(a.hi, b.hi);  in mul128()  local
163 	uint64_t m1 = mul64(a.hi, b.lo);  in mul128()
164 	uint64_t m2 = mul64(a.lo, b.hi);  in mul128()
165 	return add64(add64(hi, m1), m2);  in mul128()
172 	lo.hi += a.hi*b.lo + a.lo*b.hi;  in mul128_tail()
185 	top = ix.hi >> 48;  in sqrtl()
188 		if (2*ix.hi == 0 && ix.lo == 0)  in sqrtl()
190 		if (ix.hi == 0x7fff000000000000 && ix.lo == 0)  in sqrtl()
196 		top = ix.hi >> 48;  in sqrtl()
203 	ml.hi |= 0x8000000000000000;  in sqrtl()
210 	i = (ix.hi >> 42) % 128;  in sqrtl()
213 	s = mul32(ml.hi>>32, r);  in sqrtl()
219 	s = mul64(ml.hi, r);  in sqrtl()
230 	static const u128 threel = {.hi=three<<32, .lo=0};  in sqrtl()
232 	rl.hi = r;  in sqrtl()
247 	sl = add64(sl, d1.hi >> 63);  in sqrtl()
251 		top = predict_false((d2.hi|d2.lo)==0) ? 0 : 1;  in sqrtl()
252 		top |= ((d1.hi^d2.hi)&0x8000000000000000) >> 48;  in sqrtl()