0a10f22a30
endian the CPU is in, i.e. little-endian on most ARM cores. This allows ARMv4 and ARMv5 boards to boot with the ARM EABI.
102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/* $NetBSD: arm-gcc.h,v 1.2 2001/02/21 18:09:25 bjh21 Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
#ifdef __ARMEB__
|
|
#define BIGENDIAN
|
|
#else
|
|
#define LITTLEENDIAN
|
|
#endif
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
The macro `BITS64' can be defined to indicate that 64-bit integer types are
|
|
supported by the compiler.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
#define BITS64
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Each of the following `typedef's defines the most convenient type that holds
|
|
integers of at least as many bits as specified. For example, `uint8' should
|
|
be the most convenient type that can hold unsigned integers of as many as
|
|
8 bits. The `flag' type must be able to hold either a 0 or 1. For most
|
|
implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
|
|
to the same as `int'.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
typedef int flag;
|
|
typedef int uint8;
|
|
typedef int int8;
|
|
typedef int uint16;
|
|
typedef int int16;
|
|
typedef unsigned int uint32;
|
|
typedef signed int int32;
|
|
#ifdef BITS64
|
|
typedef unsigned long long int uint64;
|
|
typedef signed long long int int64;
|
|
#endif
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
Each of the following `typedef's defines a type that holds integers
|
|
of _exactly_ the number of bits specified. For instance, for most
|
|
implementation of C, `bits16' and `sbits16' should be `typedef'ed to
|
|
`unsigned short int' and `signed short int' (or `short int'), respectively.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
typedef unsigned char bits8;
|
|
typedef signed char sbits8;
|
|
typedef unsigned short int bits16;
|
|
typedef signed short int sbits16;
|
|
typedef unsigned int bits32;
|
|
typedef signed int sbits32;
|
|
#ifdef BITS64
|
|
typedef unsigned long long int bits64;
|
|
typedef signed long long int sbits64;
|
|
#endif
|
|
|
|
#ifdef BITS64
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
The `LIT64' macro takes as its argument a textual integer literal and
|
|
if necessary ``marks'' the literal as having a 64-bit integer type.
|
|
For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
|
|
appended with the letters `LL' standing for `long long', which is `gcc's
|
|
name for the 64-bit integer type. Some compilers may allow `LIT64' to be
|
|
defined as the identity macro: `#define LIT64( a ) a'.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
#define LIT64( a ) a##LL
|
|
#endif
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
The macro `INLINE' can be used before functions that should be inlined. If
|
|
a compiler does not support explicit inlining, this macro should be defined
|
|
to be `static'.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
#define INLINE static __inline
|
|
|
|
/*
|
|
-------------------------------------------------------------------------------
|
|
The ARM FPA is odd in that it stores doubles high-order word first, no matter
|
|
what the endianness of the CPU. VFP is sane.
|
|
-------------------------------------------------------------------------------
|
|
*/
|
|
#if defined(SOFTFLOAT_FOR_GCC)
|
|
#if defined (__ARM_EABI__) || defined(__VFP_FP__) || defined(__ARMEB__)
|
|
#define FLOAT64_DEMANGLE(a) (a)
|
|
#define FLOAT64_MANGLE(a) (a)
|
|
#else
|
|
#define FLOAT64_DEMANGLE(a) ((((a) & 0xfffffffful) << 32) | ((a) >> 32))
|
|
#define FLOAT64_MANGLE(a) FLOAT64_DEMANGLE(a)
|
|
#endif
|
|
#endif
|