1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds ------------------------------------------------------------------------------- 41da177e4SLinus Torvalds The macro `BITS64' can be defined to indicate that 64-bit integer types are 51da177e4SLinus Torvalds supported by the compiler. 61da177e4SLinus Torvalds ------------------------------------------------------------------------------- 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds #define BITS64 91da177e4SLinus Torvalds 101da177e4SLinus Torvalds /* 111da177e4SLinus Torvalds ------------------------------------------------------------------------------- 121da177e4SLinus Torvalds Each of the following `typedef's defines the most convenient type that holds 131da177e4SLinus Torvalds integers of at least as many bits as specified. For example, `uint8' should 141da177e4SLinus Torvalds be the most convenient type that can hold unsigned integers of as many as 151da177e4SLinus Torvalds 8 bits. The `flag' type must be able to hold either a 0 or 1. For most 161da177e4SLinus Torvalds implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 171da177e4SLinus Torvalds to the same as `int'. 181da177e4SLinus Torvalds ------------------------------------------------------------------------------- 191da177e4SLinus Torvalds */ 201da177e4SLinus Torvalds typedef char flag; 211da177e4SLinus Torvalds typedef unsigned char uint8; 221da177e4SLinus Torvalds typedef signed char int8; 231da177e4SLinus Torvalds typedef int uint16; 241da177e4SLinus Torvalds typedef int int16; 251da177e4SLinus Torvalds typedef unsigned int uint32; 261da177e4SLinus Torvalds typedef signed int int32; 271da177e4SLinus Torvalds #ifdef BITS64 281da177e4SLinus Torvalds typedef unsigned long long int bits64; 291da177e4SLinus Torvalds typedef signed long long int sbits64; 301da177e4SLinus Torvalds #endif 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds /* 331da177e4SLinus Torvalds ------------------------------------------------------------------------------- 341da177e4SLinus Torvalds Each of the following `typedef's defines a type that holds integers 351da177e4SLinus Torvalds of _exactly_ the number of bits specified. For instance, for most 361da177e4SLinus Torvalds implementation of C, `bits16' and `sbits16' should be `typedef'ed to 371da177e4SLinus Torvalds `unsigned short int' and `signed short int' (or `short int'), respectively. 381da177e4SLinus Torvalds ------------------------------------------------------------------------------- 391da177e4SLinus Torvalds */ 401da177e4SLinus Torvalds typedef unsigned char bits8; 411da177e4SLinus Torvalds typedef signed char sbits8; 421da177e4SLinus Torvalds typedef unsigned short int bits16; 431da177e4SLinus Torvalds typedef signed short int sbits16; 441da177e4SLinus Torvalds typedef unsigned int bits32; 451da177e4SLinus Torvalds typedef signed int sbits32; 461da177e4SLinus Torvalds #ifdef BITS64 471da177e4SLinus Torvalds typedef unsigned long long int uint64; 481da177e4SLinus Torvalds typedef signed long long int int64; 491da177e4SLinus Torvalds #endif 501da177e4SLinus Torvalds 511da177e4SLinus Torvalds #ifdef BITS64 521da177e4SLinus Torvalds /* 531da177e4SLinus Torvalds ------------------------------------------------------------------------------- 541da177e4SLinus Torvalds The `LIT64' macro takes as its argument a textual integer literal and if 551da177e4SLinus Torvalds necessary ``marks'' the literal as having a 64-bit integer type. For 561da177e4SLinus Torvalds example, the Gnu C Compiler (`gcc') requires that 64-bit literals be 571da177e4SLinus Torvalds appended with the letters `LL' standing for `long long', which is `gcc's 581da177e4SLinus Torvalds name for the 64-bit integer type. Some compilers may allow `LIT64' to be 591da177e4SLinus Torvalds defined as the identity macro: `#define LIT64( a ) a'. 601da177e4SLinus Torvalds ------------------------------------------------------------------------------- 611da177e4SLinus Torvalds */ 621da177e4SLinus Torvalds #define LIT64( a ) a##LL 631da177e4SLinus Torvalds #endif 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds /* 661da177e4SLinus Torvalds ------------------------------------------------------------------------------- 671da177e4SLinus Torvalds The macro `INLINE' can be used before functions that should be inlined. If 681da177e4SLinus Torvalds a compiler does not support explicit inlining, this macro should be defined 691da177e4SLinus Torvalds to be `static'. 701da177e4SLinus Torvalds ------------------------------------------------------------------------------- 711da177e4SLinus Torvalds */ 7238598105SAdrian Bunk #define INLINE static inline 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds /* For use as a GCC soft-float library we need some special function names. */ 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds #ifdef __LIBFLOAT__ 781da177e4SLinus Torvalds 791da177e4SLinus Torvalds /* Some 32-bit ops can be mapped straight across by just changing the name. */ 801da177e4SLinus Torvalds #define float32_add __addsf3 811da177e4SLinus Torvalds #define float32_sub __subsf3 821da177e4SLinus Torvalds #define float32_mul __mulsf3 831da177e4SLinus Torvalds #define float32_div __divsf3 841da177e4SLinus Torvalds #define int32_to_float32 __floatsisf 851da177e4SLinus Torvalds #define float32_to_int32_round_to_zero __fixsfsi 861da177e4SLinus Torvalds #define float32_to_uint32_round_to_zero __fixunssfsi 871da177e4SLinus Torvalds 881da177e4SLinus Torvalds /* These ones go through the glue code. To avoid namespace pollution 891da177e4SLinus Torvalds we rename the internal functions too. */ 901da177e4SLinus Torvalds #define float32_eq ___float32_eq 911da177e4SLinus Torvalds #define float32_le ___float32_le 921da177e4SLinus Torvalds #define float32_lt ___float32_lt 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds /* All the 64-bit ops have to go through the glue, so we pull the same 951da177e4SLinus Torvalds trick. */ 961da177e4SLinus Torvalds #define float64_add ___float64_add 971da177e4SLinus Torvalds #define float64_sub ___float64_sub 981da177e4SLinus Torvalds #define float64_mul ___float64_mul 991da177e4SLinus Torvalds #define float64_div ___float64_div 1001da177e4SLinus Torvalds #define int32_to_float64 ___int32_to_float64 1011da177e4SLinus Torvalds #define float64_to_int32_round_to_zero ___float64_to_int32_round_to_zero 1021da177e4SLinus Torvalds #define float64_to_uint32_round_to_zero ___float64_to_uint32_round_to_zero 1031da177e4SLinus Torvalds #define float64_to_float32 ___float64_to_float32 1041da177e4SLinus Torvalds #define float32_to_float64 ___float32_to_float64 1051da177e4SLinus Torvalds #define float64_eq ___float64_eq 1061da177e4SLinus Torvalds #define float64_le ___float64_le 1071da177e4SLinus Torvalds #define float64_lt ___float64_lt 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds #if 0 1101da177e4SLinus Torvalds #define float64_add __adddf3 1111da177e4SLinus Torvalds #define float64_sub __subdf3 1121da177e4SLinus Torvalds #define float64_mul __muldf3 1131da177e4SLinus Torvalds #define float64_div __divdf3 1141da177e4SLinus Torvalds #define int32_to_float64 __floatsidf 1151da177e4SLinus Torvalds #define float64_to_int32_round_to_zero __fixdfsi 1161da177e4SLinus Torvalds #define float64_to_uint32_round_to_zero __fixunsdfsi 1171da177e4SLinus Torvalds #define float64_to_float32 __truncdfsf2 1181da177e4SLinus Torvalds #define float32_to_float64 __extendsfdf2 1191da177e4SLinus Torvalds #endif 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds #endif 122