GNU Binutils with patches for OS216
| 修訂 | a58f15343cabf4a90ff8eded8f802a5ba2f5331b (tree) |
|---|---|
| 時間 | 2003-09-16 06:28:56 |
| 作者 | Andrew Cagney <cagney@redh...> |
| Commiter | Andrew Cagney |
2003-09-15 Andrew Cagney <cagney@redhat.com>
* floatformat.h (struct floatformat): Make "exp_bias" signed.
include/ChangeLog (diff)
include/floatformat.h (diff)| @@ -1,3 +1,7 @@ | ||
| 1 | +2003-09-15 Andrew Cagney <cagney@redhat.com> | |
| 2 | + | |
| 3 | + * floatformat.h (struct floatformat): Make "exp_bias" signed. | |
| 4 | + | |
| 1 | 5 | 2003-09-15 Daniel Jacobowitz <drow@mvista.com> |
| 2 | 6 | |
| 3 | 7 | * floatformat.h (floatformat_is_valid): Add prototype. |
| @@ -61,8 +61,12 @@ struct floatformat | ||
| 61 | 61 | |
| 62 | 62 | unsigned int exp_start; |
| 63 | 63 | unsigned int exp_len; |
| 64 | - /* Amount added to "true" exponent. 0x3fff for many IEEE extendeds. */ | |
| 65 | - unsigned int exp_bias; | |
| 64 | + /* Bias added to a "true" exponent to form the biased exponent. It | |
| 65 | + is intentionally signed as, otherwize, -exp_bias can turn into a | |
| 66 | + very large number (e.g., given the exp_bias of 0x3fff and a 64 | |
| 67 | + bit long, the equation (long)(1 - exp_bias) evaluates to | |
| 68 | + 4294950914) instead of -16382). */ | |
| 69 | + int exp_bias; | |
| 66 | 70 | /* Exponent value which indicates NaN. This is the actual value stored in |
| 67 | 71 | the float, not adjusted by the exp_bias. This usually consists of all |
| 68 | 72 | one bits. */ |
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