1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 ------------------------------------------------------------------------------- 4 The macro `BITS64' can be defined to indicate that 64-bit integer types are 5 supported by the compiler. 6 ------------------------------------------------------------------------------- 7 */ 8 #define BITS64 9 10 /* 11 ------------------------------------------------------------------------------- 12 Each of the following `typedef's defines the most convenient type that holds 13 integers of at least as many bits as specified. For example, `uint8' should 14 be the most convenient type that can hold unsigned integers of as many as 15 8 bits. The `flag' type must be able to hold either a 0 or 1. For most 16 implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 17 to the same as `int'. 18 ------------------------------------------------------------------------------- 19 */ 20 typedef char flag; 21 typedef unsigned char uint8; 22 typedef signed char int8; 23 typedef int uint16; 24 typedef int int16; 25 typedef unsigned int uint32; 26 typedef signed int int32; 27 #ifdef BITS64 28 typedef unsigned long long int bits64; 29 typedef signed long long int sbits64; 30 #endif 31 32 /* 33 ------------------------------------------------------------------------------- 34 Each of the following `typedef's defines a type that holds integers 35 of _exactly_ the number of bits specified. For instance, for most 36 implementation of C, `bits16' and `sbits16' should be `typedef'ed to 37 `unsigned short int' and `signed short int' (or `short int'), respectively. 38 ------------------------------------------------------------------------------- 39 */ 40 typedef unsigned char bits8; 41 typedef signed char sbits8; 42 typedef unsigned short int bits16; 43 typedef signed short int sbits16; 44 typedef unsigned int bits32; 45 typedef signed int sbits32; 46 #ifdef BITS64 47 typedef unsigned long long int uint64; 48 typedef signed long long int int64; 49 #endif 50 51 #ifdef BITS64 52 /* 53 ------------------------------------------------------------------------------- 54 The `LIT64' macro takes as its argument a textual integer literal and if 55 necessary ``marks'' the literal as having a 64-bit integer type. For 56 example, the Gnu C Compiler (`gcc') requires that 64-bit literals be 57 appended with the letters `LL' standing for `long long', which is `gcc's 58 name for the 64-bit integer type. Some compilers may allow `LIT64' to be 59 defined as the identity macro: `#define LIT64( a ) a'. 60 ------------------------------------------------------------------------------- 61 */ 62 #define LIT64( a ) a##LL 63 #endif 64 65 /* 66 ------------------------------------------------------------------------------- 67 The macro `INLINE' can be used before functions that should be inlined. If 68 a compiler does not support explicit inlining, this macro should be defined 69 to be `static'. 70 ------------------------------------------------------------------------------- 71 */ 72 #define INLINE static inline 73 74 75 /* For use as a GCC soft-float library we need some special function names. */ 76 77 #ifdef __LIBFLOAT__ 78 79 /* Some 32-bit ops can be mapped straight across by just changing the name. */ 80 #define float32_add __addsf3 81 #define float32_sub __subsf3 82 #define float32_mul __mulsf3 83 #define float32_div __divsf3 84 #define int32_to_float32 __floatsisf 85 #define float32_to_int32_round_to_zero __fixsfsi 86 #define float32_to_uint32_round_to_zero __fixunssfsi 87 88 /* These ones go through the glue code. To avoid namespace pollution 89 we rename the internal functions too. */ 90 #define float32_eq ___float32_eq 91 #define float32_le ___float32_le 92 #define float32_lt ___float32_lt 93 94 /* All the 64-bit ops have to go through the glue, so we pull the same 95 trick. */ 96 #define float64_add ___float64_add 97 #define float64_sub ___float64_sub 98 #define float64_mul ___float64_mul 99 #define float64_div ___float64_div 100 #define int32_to_float64 ___int32_to_float64 101 #define float64_to_int32_round_to_zero ___float64_to_int32_round_to_zero 102 #define float64_to_uint32_round_to_zero ___float64_to_uint32_round_to_zero 103 #define float64_to_float32 ___float64_to_float32 104 #define float32_to_float64 ___float32_to_float64 105 #define float64_eq ___float64_eq 106 #define float64_le ___float64_le 107 #define float64_lt ___float64_lt 108 109 #if 0 110 #define float64_add __adddf3 111 #define float64_sub __subdf3 112 #define float64_mul __muldf3 113 #define float64_div __divdf3 114 #define int32_to_float64 __floatsidf 115 #define float64_to_int32_round_to_zero __fixdfsi 116 #define float64_to_uint32_round_to_zero __fixunsdfsi 117 #define float64_to_float32 __truncdfsf2 118 #define float32_to_float64 __extendsfdf2 119 #endif 120 121 #endif 122