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| Rev 834 | Rev 835 | ||
|---|---|---|---|
| Line 45... | Line 45... | ||
| 45 | cexp--; |
45 | cexp--; |
| 46 | cfrac <<= 1; |
46 | cfrac <<= 1; |
| 47 | /* TODO: fix underflow */ |
47 | /* TODO: fix underflow */ |
| 48 | }; |
48 | }; |
| 49 | 49 | ||
| 50 | cfrac += (0x1 << (64 - FLOAT64_FRACTION_SIZE - 3)); |
- | |
| 51 | - | ||
| 52 | if ((cexp < 0) || ( cexp == 0 && (!(cfrac & (FLOAT64_HIDDEN_BIT_MASK << (64 - FLOAT64_FRACTION_SIZE - 1)))))) { |
50 | if ((cexp < 0) || ( cexp == 0 && (!(cfrac & (FLOAT64_HIDDEN_BIT_MASK << (64 - FLOAT64_FRACTION_SIZE - 1)))))) { |
| 53 | /* FIXME: underflow */ |
51 | /* FIXME: underflow */ |
| 54 | result.parts.exp = 0; |
52 | result.parts.exp = 0; |
| 55 | if ((cexp + FLOAT64_FRACTION_SIZE) < 0) { |
53 | if ((cexp + FLOAT64_FRACTION_SIZE + 1) < 0) { /* +1 is place for rounding */ |
| 56 | result.parts.fraction = 0; |
54 | result.parts.fraction = 0; |
| 57 | return result; |
55 | return result; |
| 58 | } |
56 | } |
| 59 | //cfrac >>= 1; |
57 | |
| 60 | while (cexp < 0) { |
58 | while (cexp < 0) { |
| 61 | cexp++; |
59 | cexp++; |
| 62 | cfrac >>= 1; |
60 | cfrac >>= 1; |
| 63 | } |
61 | } |
| - | 62 | ||
| - | 63 | cfrac += (0x1 << (64 - FLOAT64_FRACTION_SIZE - 3)); |
|
| - | 64 | ||
| - | 65 | if (!(cfrac & (FLOAT64_HIDDEN_BIT_MASK << (64 - FLOAT64_HIDDEN_BIT_MASK - 1)))) { |
|
| 64 | 66 | ||
| 65 | result.parts.fraction = ((cfrac >>(64 - FLOAT64_FRACTION_SIZE - 2) ) & (~FLOAT64_HIDDEN_BIT_MASK)); |
67 | result.parts.fraction = ((cfrac >>(64 - FLOAT64_FRACTION_SIZE - 2) ) & (~FLOAT64_HIDDEN_BIT_MASK)); |
| 66 | - | ||
| 67 | return result; |
68 | return result; |
| - | 69 | } |
|
| - | 70 | } else { |
|
| - | 71 | cfrac += (0x1 << (64 - FLOAT64_FRACTION_SIZE - 3)); |
|
| 68 | } |
72 | } |
| 69 | 73 | ||
| 70 | ++cexp; |
74 | ++cexp; |
| 71 | 75 | ||
| 72 | if (cfrac & (FLOAT64_HIDDEN_BIT_MASK << (64 - FLOAT64_FRACTION_SIZE - 1 ))) { |
76 | if (cfrac & (FLOAT64_HIDDEN_BIT_MASK << (64 - FLOAT64_FRACTION_SIZE - 1 ))) { |