projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | ------------------------------------------------------------------------------- | |
| 3 | The macro `BITS64' can be defined to indicate that 64-bit integer types are | |
| 4 | supported by the compiler. | |
| 5 | ------------------------------------------------------------------------------- | |
| 6 | */ | |
| 7 | #define BITS64 | |
| 8 | ||
| 9 | /* | |
| 10 | ------------------------------------------------------------------------------- | |
| 11 | Each of the following `typedef's defines the most convenient type that holds | |
| 12 | integers of at least as many bits as specified. For example, `uint8' should | |
| 13 | be the most convenient type that can hold unsigned integers of as many as | |
| 14 | 8 bits. The `flag' type must be able to hold either a 0 or 1. For most | |
| 15 | implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed | |
| 16 | to the same as `int'. | |
| 17 | ------------------------------------------------------------------------------- | |
| 18 | */ | |
| 19 | typedef char flag; | |
| 20 | typedef unsigned char uint8; | |
| 21 | typedef signed char int8; | |
| 22 | typedef int uint16; | |
| 23 | typedef int int16; | |
| 24 | typedef unsigned int uint32; | |
| 25 | typedef signed int int32; | |
| 26 | #ifdef BITS64 | |
| 27 | typedef unsigned long long int bits64; | |
| 28 | typedef signed long long int sbits64; | |
| 29 | #endif | |
| 30 | ||
| 31 | /* | |
| 32 | ------------------------------------------------------------------------------- | |
| 33 | Each of the following `typedef's defines a type that holds integers | |
| 34 | of _exactly_ the number of bits specified. For instance, for most | |
| 35 | implementation of C, `bits16' and `sbits16' should be `typedef'ed to | |
| 36 | `unsigned short int' and `signed short int' (or `short int'), respectively. | |
| 37 | ------------------------------------------------------------------------------- | |
| 38 | */ | |
| 39 | typedef unsigned char bits8; | |
| 40 | typedef signed char sbits8; | |
| 41 | typedef unsigned short int bits16; | |
| 42 | typedef signed short int sbits16; | |
| 43 | typedef unsigned int bits32; | |
| 44 | typedef signed int sbits32; | |
| 45 | #ifdef BITS64 | |
| 46 | typedef unsigned long long int uint64; | |
| 47 | typedef signed long long int int64; | |
| 48 | #endif | |
| 49 | ||
| 50 | #ifdef BITS64 | |
| 51 | /* | |
| 52 | ------------------------------------------------------------------------------- | |
| 53 | The `LIT64' macro takes as its argument a textual integer literal and if | |
| 54 | necessary ``marks'' the literal as having a 64-bit integer type. For | |
| 55 | example, the Gnu C Compiler (`gcc') requires that 64-bit literals be | |
| 56 | appended with the letters `LL' standing for `long long', which is `gcc's | |
| 57 | name for the 64-bit integer type. Some compilers may allow `LIT64' to be | |
| 58 | defined as the identity macro: `#define LIT64( a ) a'. | |
| 59 | ------------------------------------------------------------------------------- | |
| 60 | */ | |
| 61 | #define LIT64( a ) a##LL | |
| 62 | #endif | |
| 63 | ||
| 64 | /* | |
| 65 | ------------------------------------------------------------------------------- | |
| 66 | The macro `INLINE' can be used before functions that should be inlined. If | |
| 67 | a compiler does not support explicit inlining, this macro should be defined | |
| 68 | to be `static'. | |
| 69 | ------------------------------------------------------------------------------- | |
| 70 | */ | |
| 38598105 | 71 | #define INLINE static inline |
| 1da177e4 LT |
72 | |
| 73 | ||
| 74 | /* For use as a GCC soft-float library we need some special function names. */ | |
| 75 | ||
| 76 | #ifdef __LIBFLOAT__ | |
| 77 | ||
| 78 | /* Some 32-bit ops can be mapped straight across by just changing the name. */ | |
| 79 | #define float32_add __addsf3 | |
| 80 | #define float32_sub __subsf3 | |
| 81 | #define float32_mul __mulsf3 | |
| 82 | #define float32_div __divsf3 | |
| 83 | #define int32_to_float32 __floatsisf | |
| 84 | #define float32_to_int32_round_to_zero __fixsfsi | |
| 85 | #define float32_to_uint32_round_to_zero __fixunssfsi | |
| 86 | ||
| 87 | /* These ones go through the glue code. To avoid namespace pollution | |
| 88 | we rename the internal functions too. */ | |
| 89 | #define float32_eq ___float32_eq | |
| 90 | #define float32_le ___float32_le | |
| 91 | #define float32_lt ___float32_lt | |
| 92 | ||
| 93 | /* All the 64-bit ops have to go through the glue, so we pull the same | |
| 94 | trick. */ | |
| 95 | #define float64_add ___float64_add | |
| 96 | #define float64_sub ___float64_sub | |
| 97 | #define float64_mul ___float64_mul | |
| 98 | #define float64_div ___float64_div | |
| 99 | #define int32_to_float64 ___int32_to_float64 | |
| 100 | #define float64_to_int32_round_to_zero ___float64_to_int32_round_to_zero | |
| 101 | #define float64_to_uint32_round_to_zero ___float64_to_uint32_round_to_zero | |
| 102 | #define float64_to_float32 ___float64_to_float32 | |
| 103 | #define float32_to_float64 ___float32_to_float64 | |
| 104 | #define float64_eq ___float64_eq | |
| 105 | #define float64_le ___float64_le | |
| 106 | #define float64_lt ___float64_lt | |
| 107 | ||
| 108 | #if 0 | |
| 109 | #define float64_add __adddf3 | |
| 110 | #define float64_sub __subdf3 | |
| 111 | #define float64_mul __muldf3 | |
| 112 | #define float64_div __divdf3 | |
| 113 | #define int32_to_float64 __floatsidf | |
| 114 | #define float64_to_int32_round_to_zero __fixdfsi | |
| 115 | #define float64_to_uint32_round_to_zero __fixunsdfsi | |
| 116 | #define float64_to_float32 __truncdfsf2 | |
| 117 | #define float32_to_float64 __extendsfdf2 | |
| 118 | #endif | |
| 119 | ||
| 120 | #endif |