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[/] [openrisc/] [trunk/] [or1ksim/] [softfloat/] [host.h] - Rev 248
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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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