| 29,52 → 29,6 |
|---|
| #ifndef __SOFTFLOAT_H__ |
| #define __SOFTFLOAT_H__ |
| |
| |
| typedef union { |
| float f; |
| struct { |
| #ifdef __BIG_ENDIAN__ |
| __u32 sign:1; |
| __u32 exp:8; |
| __u32 mantisa:23; |
| #elif defined __LITTLE_ENDIAN__ |
| __u32 mantisa:23; |
| __u32 exp:8; |
| __u32 sign:1; |
| #else |
| #error "Unknown endians." |
| #endif |
| } parts __attribute__ ((packed)); |
| } float32; |
| |
| typedef union { |
| double d; |
| struct { |
| #ifdef __BIG_ENDIAN__ |
| __u64 sign:1; |
| __u64 exp:11; |
| __u64 mantisa:52; |
| #elif defined __LITTLE_ENDIAN__ |
| __u64 mantisa:52; |
| __u64 exp:11; |
| __u64 sign:1; |
| #else |
| #error "Unknown endians." |
| #endif |
| } parts __attribute__ ((packed)); |
| } float64; |
| |
| #define FLOAT32_MAX 0x7f800000 |
| #define FLOAT32_MIN 0xff800000 |
| #define FLOAT64_MAX |
| #define FLOAT64_MIN |
| |
| #define FLOAT32_BIAS 0xF7 |
| #define FLOAT64_BIAS 0x3FF |
| #define FLOAT80_BIAS 0x3FFF |
| |
| |
| |
| float __addsf3(float a, float b); |
| double __adddf3(double a, double b); |
| long double __addtf3(long double a, long double b); |