83 (hx >= 0x3fe00000 && ((hx & 0xfffff) | xx.i[LOWORD]))))
84 xx.i[HIWORD] = sx | 0x3ff00000;
85 else
86 xx.i[HIWORD] = sx;
87 xx.i[LOWORD] = 0;
88 return (xx.d);
89 }
90
91 /* round x at the integer bit */
92 j = 0x433 - (hx >> 20);
93 if (j >= 32) {
94 i = 1 << (j - 32);
95 frac = ((xx.i[HIWORD] << 1) << (63 - j)) |
96 (xx.i[LOWORD] >> (j - 32));
97 if (xx.i[LOWORD] & (i - 1))
98 frac |= 1;
99 if (!frac)
100 return (x);
101 xx.i[LOWORD] = 0;
102 xx.i[HIWORD] &= ~(i - 1);
103 if (rm == FE_UPWARD || (rm == FE_TONEAREST &&
104 (frac > 0x80000000u || (frac == 0x80000000) &&
105 (xx.i[HIWORD] & i))))
106 xx.i[HIWORD] += i;
107 } else {
108 i = 1 << j;
109 frac = (xx.i[LOWORD] << 1) << (31 - j);
110 if (!frac)
111 return (x);
112 xx.i[LOWORD] &= ~(i - 1);
113 if (rm == FE_UPWARD || (rm == FE_TONEAREST &&
114 (frac > 0x80000000u || (frac == 0x80000000) &&
115 (xx.i[LOWORD] & i)))) {
116 xx.i[LOWORD] += i;
117 if (xx.i[LOWORD] == 0)
118 xx.i[HIWORD]++;
119 }
120 }
121 return (xx.d);
122 }
123
124 #if 0
125
126 /*
127 * Alternate implementations for SPARC, x86, using fp ops. These may
128 * be faster depending on how expensive saving and restoring the fp
129 * modes and status flags is.
130 */
131
132 #include "libm.h"
133 #include "fma.h"
134
135 #if defined(__sparc)
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83 (hx >= 0x3fe00000 && ((hx & 0xfffff) | xx.i[LOWORD]))))
84 xx.i[HIWORD] = sx | 0x3ff00000;
85 else
86 xx.i[HIWORD] = sx;
87 xx.i[LOWORD] = 0;
88 return (xx.d);
89 }
90
91 /* round x at the integer bit */
92 j = 0x433 - (hx >> 20);
93 if (j >= 32) {
94 i = 1 << (j - 32);
95 frac = ((xx.i[HIWORD] << 1) << (63 - j)) |
96 (xx.i[LOWORD] >> (j - 32));
97 if (xx.i[LOWORD] & (i - 1))
98 frac |= 1;
99 if (!frac)
100 return (x);
101 xx.i[LOWORD] = 0;
102 xx.i[HIWORD] &= ~(i - 1);
103 if ((rm == FE_UPWARD) || ((rm == FE_TONEAREST) &&
104 ((frac > 0x80000000u) || ((frac == 0x80000000) &&
105 (xx.i[HIWORD] & i)))))
106 xx.i[HIWORD] += i;
107 } else {
108 i = 1 << j;
109 frac = (xx.i[LOWORD] << 1) << (31 - j);
110 if (!frac)
111 return (x);
112 xx.i[LOWORD] &= ~(i - 1);
113 if ((rm == FE_UPWARD) || ((rm == FE_TONEAREST) &&
114 (frac > 0x80000000u || ((frac == 0x80000000) &&
115 (xx.i[LOWORD] & i))))) {
116 xx.i[LOWORD] += i;
117 if (xx.i[LOWORD] == 0)
118 xx.i[HIWORD]++;
119 }
120 }
121 return (xx.d);
122 }
123
124 #if 0
125
126 /*
127 * Alternate implementations for SPARC, x86, using fp ops. These may
128 * be faster depending on how expensive saving and restoring the fp
129 * modes and status flags is.
130 */
131
132 #include "libm.h"
133 #include "fma.h"
134
135 #if defined(__sparc)
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