1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3------------------------------------------------------------------------------- 4The macro `BITS64' can be defined to indicate that 64-bit integer types are 5supported by the compiler. 6------------------------------------------------------------------------------- 7*/ 8#define BITS64 9 10/* 11------------------------------------------------------------------------------- 12Each of the following `typedef's defines the most convenient type that holds 13integers of at least as many bits as specified. For example, `uint8' should 14be the most convenient type that can hold unsigned integers of as many as 158 bits. The `flag' type must be able to hold either a 0 or 1. For most 16implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 17to the same as `int'. 18------------------------------------------------------------------------------- 19*/ 20typedef char flag; 21typedef unsigned char uint8; 22typedef signed char int8; 23typedef int uint16; 24typedef int int16; 25typedef unsigned int uint32; 26typedef signed int int32; 27#ifdef BITS64 28typedef unsigned long long int bits64; 29typedef signed long long int sbits64; 30#endif 31 32/* 33------------------------------------------------------------------------------- 34Each of the following `typedef's defines a type that holds integers 35of _exactly_ the number of bits specified. For instance, for most 36implementation of C, `bits16' and `sbits16' should be `typedef'ed to 37`unsigned short int' and `signed short int' (or `short int'), respectively. 38------------------------------------------------------------------------------- 39*/ 40typedef unsigned char bits8; 41typedef signed char sbits8; 42typedef unsigned short int bits16; 43typedef signed short int sbits16; 44typedef unsigned int bits32; 45typedef signed int sbits32; 46#ifdef BITS64 47typedef unsigned long long int uint64; 48typedef signed long long int int64; 49#endif 50 51#ifdef BITS64 52/* 53------------------------------------------------------------------------------- 54The `LIT64' macro takes as its argument a textual integer literal and if 55necessary ``marks'' the literal as having a 64-bit integer type. For 56example, the Gnu C Compiler (`gcc') requires that 64-bit literals be 57appended with the letters `LL' standing for `long long', which is `gcc's 58name for the 64-bit integer type. Some compilers may allow `LIT64' to be 59defined as the identity macro: `#define LIT64( a ) a'. 60------------------------------------------------------------------------------- 61*/ 62#define LIT64( a ) a##LL 63#endif 64 65/* 66------------------------------------------------------------------------------- 67The macro `INLINE' can be used before functions that should be inlined. If 68a compiler does not support explicit inlining, this macro should be defined 69to 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