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[/] [openrisc/] [trunk/] [or1ksim/] [softfloat/] [host.h] - Rev 599

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// To check endianness and if compiler supports 64-bit type (sizeof(long long))
#include "config.h"
 
/*----------------------------------------------------------------------------
| One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
*----------------------------------------------------------------------------*/
#ifdef WORDS_BIGENDIAN
# define BIGENDIAN
#else
# define LITTLEENDIAN
#endif
/*----------------------------------------------------------------------------
| The macro `BITS64' can be defined to indicate that 64-bit integer types are
| supported by the compiler.
| Configure script should check sizeof long long at configure time.
*----------------------------------------------------------------------------*/
 
#if SIZEOF_LONG_LONG!=8
# error Compiler does not appear to have 64-bit types. This is required for the SoftFloat library.
#else
#define BITS64
#endif
 
/*----------------------------------------------------------------------------
| 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 char flag;
typedef unsigned char uint8;
typedef signed char 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'.
*----------------------------------------------------------------------------*/
#ifndef INLINE
#define INLINE extern inline
#endif
 
 
 

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