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