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  /src/lib/libm/src/
e_sqrt.c 99 u_int32_t r,t1,s1,ix1,q1; local in function:__ieee754_sqrt
101 EXTRACT_WORDS(ix0,ix1,x);
110 if(((ix0&(~sign))|ix1)==0) return x;/* sqrt(+-0) = +-0 */
119 ix0 |= (ix1>>11); ix1 <<= 21;
123 ix0 |= (ix1>>(32-i));
124 ix1 <<= i;
129 ix0 += ix0 + ((ix1&sign)>>31);
130 ix1 += ix1;
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math_private.h 28 * ix1 = *((1-n0)+(int*)&x); // low word of x
133 #define EXTRACT_WORDS(ix0,ix1,d) \
138 (ix1) = ew_u.parts.lsw; \
170 #define INSERT_WORDS(d,ix0,ix1) \
174 iw_u.parts.lsw = (ix1); \
249 * ix1 from an 80-bit long double d.
252 #define EXTRACT_LDBL80_WORDS(ix0,ix1,d) \
257 (ix1) = GET_LDBL80_MAN(&ew_u); \
262 * integers, ix1 high-order and ix2 low-order, from a 128-bit long
266 #define EXTRACT_LDBL128_WORDS(ix0,ix1,ix2,d)
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  /src/sys/arch/mips/mips/
fp.S 1554 srl v0, t3, 31 # ix0 += (ix1&sign)>>31)
1557 addu t3, t3, t3 # ix1 += ix1;
1562 srl v0, t3, 31 # ix0 += (ix1&sign)>>31)
1565 addu t3, t3, t3 # ix1 += ix1;
1579 srl v0, t3, 31 # ix0 += (ix1&sign)>>31)
1582 addu t3, t3, t3 # ix1 += ix1;
1593 bgtu v1, t3, 3f # (t1 <= ix1)))
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