[444] | 1 | #ifndef _FIX64_H_ |
---|
| 2 | |
---|
| 3 | #define _FIX64_H_ |
---|
| 4 | |
---|
| 5 | #include <ieeefp.h> |
---|
| 6 | #include <math.h> |
---|
| 7 | #include <float.h> |
---|
| 8 | #include <errno.h> |
---|
| 9 | #include <sys/config.h> |
---|
| 10 | |
---|
| 11 | #ifdef __IEEE_LITTLE_ENDIAN |
---|
| 12 | #define IEEE_8087 |
---|
| 13 | #endif |
---|
| 14 | |
---|
| 15 | #ifdef __IEEE_BIG_ENDIAN |
---|
| 16 | #define IEEE_MC68k |
---|
| 17 | #endif |
---|
| 18 | |
---|
| 19 | #ifdef __Z8000__ |
---|
| 20 | #define Just_16 |
---|
| 21 | #endif |
---|
| 22 | |
---|
| 23 | #if defined(IEEE_8087) + defined(IEEE_MC68k) + defined(VAX) + defined(IBM) != 1 |
---|
| 24 | Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined. |
---|
| 25 | #endif |
---|
| 26 | |
---|
| 27 | union long_double_union |
---|
| 28 | { |
---|
| 29 | long double ld; |
---|
| 30 | __uint32_t i[4]; |
---|
| 31 | }; |
---|
| 32 | |
---|
| 33 | typedef union long_double_union LONG_DOUBLE_UNION; |
---|
| 34 | |
---|
| 35 | extern void _simdstrtold (char *, char **, LONG_DOUBLE_UNION *); |
---|
| 36 | extern int _simdldcheck (LONG_DOUBLE_UNION *); |
---|
| 37 | |
---|
| 38 | #define SIMD_LDBL_MANT_DIG 113 |
---|
| 39 | |
---|
| 40 | #ifdef IEEE_8087 |
---|
| 41 | # define word0(x) (x.i[3]) |
---|
| 42 | # define word1(x) (x.i[2]) |
---|
| 43 | # define word2(x) (x.i[1]) |
---|
| 44 | # define word3(x) (x.i[0]) |
---|
| 45 | #else /* !IEEE_8087 */ |
---|
| 46 | # define word0(x) (x.i[0]) |
---|
| 47 | # define word1(x) (x.i[1]) |
---|
| 48 | # define word2(x) (x.i[2]) |
---|
| 49 | # define word3(x) (x.i[3]) |
---|
| 50 | #endif /* !IEEE_8087 */ |
---|
| 51 | |
---|
| 52 | #undef Exp_shift |
---|
| 53 | #define Exp_shift 16 |
---|
| 54 | #undef Exp_mask |
---|
| 55 | #define Exp_mask ((__uint32_t)0x7fff0000L) |
---|
| 56 | #undef Exp_msk1 |
---|
| 57 | #define Exp_msk1 ((__uint32_t)0x00010000L) |
---|
| 58 | #undef Bias |
---|
| 59 | #define Bias 16383 |
---|
| 60 | #undef Ebits |
---|
| 61 | #define Ebits 15 |
---|
| 62 | #undef Sign_bit |
---|
| 63 | #define Sign_bit ((__uint32_t)0x80000000L) |
---|
| 64 | #define init(x) {} |
---|
| 65 | |
---|
| 66 | union fix64_union |
---|
| 67 | { |
---|
| 68 | __uint64_t ll; |
---|
| 69 | __uint32_t j[2]; |
---|
| 70 | }; |
---|
| 71 | |
---|
| 72 | #ifdef __LITTLE_ENDIAN__ |
---|
| 73 | # define hiword(y) (y.j[1]) |
---|
| 74 | # define loword(y) (y.j[0]) |
---|
| 75 | #else /* __BIG_ENDIAN__ */ |
---|
| 76 | # define hiword(y) (y.j[0]) |
---|
| 77 | # define loword(y) (y.j[1]) |
---|
| 78 | #endif /* __BIG_ENDIAN__ */ |
---|
| 79 | |
---|
| 80 | #endif /* _FIX64_H_ */ |
---|