arm-gcc.h revision 255361
1104349Sphk/* $NetBSD: arm-gcc.h,v 1.2 2001/02/21 18:09:25 bjh21 Exp $ */ 2104349Sphk/* $FreeBSD: head/lib/libc/arm/softfloat/arm-gcc.h 255361 2013-09-07 14:04:10Z andrew $ */ 3104349Sphk 4104349Sphk/* 5104349Sphk------------------------------------------------------------------------------- 6104349SphkOne of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined. 7104349Sphk------------------------------------------------------------------------------- 8104349Sphk*/ 9247296Sdelphij#ifdef __ARMEB__ 10104349Sphk#define BIGENDIAN 11104349Sphk#else 12104349Sphk#define LITTLEENDIAN 13104349Sphk#endif 14104349Sphk 15104349Sphk/* 16104349Sphk------------------------------------------------------------------------------- 17104349SphkThe macro `BITS64' can be defined to indicate that 64-bit integer types are 18104349Sphksupported by the compiler. 19104349Sphk------------------------------------------------------------------------------- 20104349Sphk*/ 21104349Sphk#define BITS64 22104349Sphk 23104349Sphk/* 24104349Sphk------------------------------------------------------------------------------- 25104349SphkEach of the following `typedef's defines the most convenient type that holds 26104349Sphkintegers of at least as many bits as specified. For example, `uint8' should 27104349Sphkbe the most convenient type that can hold unsigned integers of as many as 28104349Sphk8 bits. The `flag' type must be able to hold either a 0 or 1. For most 29104349Sphkimplementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 30104349Sphkto the same as `int'. 31104349Sphk------------------------------------------------------------------------------- 32104349Sphk*/ 33104349Sphktypedef int flag; 34178848Scokanetypedef int uint8; 35178848Scokanetypedef int int8; 36104349Sphktypedef int uint16; 37178848Scokanetypedef int int16; 38178848Scokanetypedef unsigned int uint32; 39178848Scokanetypedef signed int int32; 40104349Sphk#ifdef BITS64 41104349Sphktypedef unsigned long long int uint64; 42247296Sdelphijtypedef signed long long int int64; 43104349Sphk#endif 44104349Sphk 45104349Sphk/* 46104349Sphk------------------------------------------------------------------------------- 47104349SphkEach of the following `typedef's defines a type that holds integers 48104349Sphkof _exactly_ the number of bits specified. For instance, for most 49178848Scokaneimplementation of C, `bits16' and `sbits16' should be `typedef'ed to 50178848Scokane`unsigned short int' and `signed short int' (or `short int'), respectively. 51104349Sphk------------------------------------------------------------------------------- 52178848Scokane*/ 53178848Scokanetypedef unsigned char bits8; 54178848Scokanetypedef signed char sbits8; 55104349Sphktypedef unsigned short int bits16; 56104349Sphktypedef signed short int sbits16; 57178848Scokanetypedef unsigned int bits32; 58247296Sdelphijtypedef signed int sbits32; 59104349Sphk#ifdef BITS64 60178848Scokanetypedef unsigned long long int bits64; 61178848Scokanetypedef signed long long int sbits64; 62104349Sphk#endif 63104349Sphk 64104349Sphk#ifdef BITS64 65104349Sphk/* 66104349Sphk------------------------------------------------------------------------------- 67178848ScokaneThe `LIT64' macro takes as its argument a textual integer literal and 68104349Sphkif necessary ``marks'' the literal as having a 64-bit integer type. 69104349SphkFor example, the GNU C Compiler (`gcc') requires that 64-bit literals be 70104349Sphkappended with the letters `LL' standing for `long long', which is `gcc's 71104349Sphkname for the 64-bit integer type. Some compilers may allow `LIT64' to be 72104349Sphkdefined as the identity macro: `#define LIT64( a ) a'. 73104349Sphk------------------------------------------------------------------------------- 74104349Sphk*/ 75178848Scokane#define LIT64( a ) a##LL 76178848Scokane#endif 77178848Scokane 78178848Scokane/* 79178848Scokane------------------------------------------------------------------------------- 80178848ScokaneThe macro `INLINE' can be used before functions that should be inlined. If 81178848Scokanea compiler does not support explicit inlining, this macro should be defined 82178848Scokaneto be `static'. 83104349Sphk------------------------------------------------------------------------------- 84104349Sphk*/ 85104349Sphk#define INLINE static __inline 86104349Sphk 87104349Sphk/* 88178848Scokane------------------------------------------------------------------------------- 89178848ScokaneThe ARM FPA is odd in that it stores doubles high-order word first, no matter 90178848Scokanewhat the endianness of the CPU. VFP is sane. 91178848Scokane------------------------------------------------------------------------------- 92178848Scokane*/ 93178848Scokane#if defined(SOFTFLOAT_FOR_GCC) 94178848Scokane#if defined (__ARM_EABI__) || defined(__VFP_FP__) || defined(__ARMEB__) 95178848Scokane#define FLOAT64_DEMANGLE(a) (a) 96178848Scokane#define FLOAT64_MANGLE(a) (a) 97104349Sphk#else 98104349Sphk#define FLOAT64_DEMANGLE(a) ((((a) & 0xfffffffful) << 32) | ((a) >> 32)) 99104349Sphk#define FLOAT64_MANGLE(a) FLOAT64_DEMANGLE(a) 100178848Scokane#endif 101178848Scokane#endif 102104349Sphk