| #include <stdint.h> | |
| #include <stddef.h> | |
| struct DWstruct {int32_t low, high;}; | |
| typedef union | |
| { | |
| struct DWstruct s; | |
| int64_t ll; | |
| } DWunion; | |
| __negdi2 (int64_t u) | |
| { | |
| DWunion w; | |
| DWunion uu; | |
| uu.ll = u; | |
| w.s.low = -uu.s.low; | |
| w.s.high = -uu.s.high - ((uint32_t) w.s.low > 0); | |
| return w.ll; | |
| } |