113 lines
5.2 KiB
C
113 lines
5.2 KiB
C
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/*============================================================================
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This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic
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Package, Release 2b.
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Written by John R. Hauser. This work was made possible in part by the
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International Computer Science Institute, located at Suite 600, 1947 Center
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Street, Berkeley, California 94704. Funding was partially provided by the
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National Science Foundation under grant MIP-9311980. The original version
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of this code was written as part of a project to build a fixed-point vector
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processor in collaboration with the University of California at Berkeley,
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overseen by Profs. Nelson Morgan and John Wawrzynek. More information
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is available through the Web page `http://www.cs.berkeley.edu/~jhauser/
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arithmetic/SoftFloat.html'.
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THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has
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been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES
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RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS
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AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,
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COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
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EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
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INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
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OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
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Derivative works are acceptable, even for commercial purposes, so long as
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(1) the source code for the derivative work includes prominent notice that
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the work is derivative, and (2) the source code includes prominent notice with
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these four paragraphs for those parts of this code that are retained.
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=============================================================================*/
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/*----------------------------------------------------------------------------
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| Include common integer types and flags.
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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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#define BIGENDIAN
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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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//#define BITS64
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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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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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| 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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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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| 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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#define LIT64( a ) a##LL
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#endif
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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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#define INLINE extern inline
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/*----------------------------------------------------------------------------
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| Symbolic Boolean literals.
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*----------------------------------------------------------------------------*/
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enum {
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FALSE = 0,
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TRUE = 1
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};
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