From 1e163c715550e20e239976a22e00869884713e54 Mon Sep 17 00:00:00 2001 From: Andrew Waterman Date: Sun, 19 Jun 2011 21:45:58 -0700 Subject: fixed build after repo split --- softfloat/8086/specialize.h | 113 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100755 softfloat/8086/specialize.h (limited to 'softfloat/8086/specialize.h') diff --git a/softfloat/8086/specialize.h b/softfloat/8086/specialize.h new file mode 100755 index 0000000..ca0bb1d --- /dev/null +++ b/softfloat/8086/specialize.h @@ -0,0 +1,113 @@ + +/*============================================================================ + +*** FIX. + +This C source fragment is part of the SoftFloat IEC/IEEE Floating-point +Arithmetic Package, Release 2b. + +Written by John R. Hauser. This work was made possible in part by the +International Computer Science Institute, located at Suite 600, 1947 Center +Street, Berkeley, California 94704. Funding was partially provided by the +National Science Foundation under grant MIP-9311980. The original version +of this code was written as part of a project to build a fixed-point vector +processor in collaboration with the University of California at Berkeley, +overseen by Profs. Nelson Morgan and John Wawrzynek. More information +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ +arithmetic/SoftFloat.html'. + +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. + +Derivative works are acceptable, even for commercial purposes, so long as +(1) the source code for the derivative work includes prominent notice that +the work is derivative, and (2) the source code includes prominent notice with +these four paragraphs for those parts of this code that are retained. + +=============================================================================*/ + +#include +#include + +/*---------------------------------------------------------------------------- +*----------------------------------------------------------------------------*/ +#define init_detectTininess softfloat_tininess_afterRounding; + +/*---------------------------------------------------------------------------- +| Structure used to transfer NaN representations from one format to another. +*----------------------------------------------------------------------------*/ +struct commonNaN { + bool sign; + uint64_t v64, v0; +}; + +/*---------------------------------------------------------------------------- +| The pattern for a default generated single-precision NaN. +*----------------------------------------------------------------------------*/ +#define defaultNaNF32UI 0xFFC00000 + +/*---------------------------------------------------------------------------- +| Returns 1 if the single-precision floating-point value `a' is a signaling +| NaN; otherwise, returns 0. +*----------------------------------------------------------------------------*/ +#if defined INLINE_LEVEL && ( 1 <= INLINE_LEVEL ) +INLINE bool softfloat_isSigNaNF32UI( uint_fast32_t ui ) + { return ( ( ui>>22 & 0x1FF ) == 0x1FE ) && ( ui & 0x003FFFFF ); } +#else +bool softfloat_isSigNaNF32UI( uint_fast32_t ); +#endif + +/*---------------------------------------------------------------------------- +*----------------------------------------------------------------------------*/ +struct commonNaN softfloat_f32UIToCommonNaN( uint_fast32_t ); +#if defined INLINE_LEVEL && ( 1 <= INLINE_LEVEL ) +INLINE uint_fast32_t softfloat_commonNaNToF32UI( struct commonNaN a ) + { return (uint_fast32_t) a.sign<<31 | 0x7FC00000 | a.v64>>41; } +#else +uint_fast32_t softfloat_commonNaNToF32UI( struct commonNaN ); +#endif + +/*---------------------------------------------------------------------------- +| Takes two single-precision floating-point values `a' and `b', one of which +| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a +| signaling NaN, the invalid exception is raised. +*----------------------------------------------------------------------------*/ +uint_fast32_t softfloat_propagateNaNF32UI( uint_fast32_t, uint_fast32_t ); + +/*---------------------------------------------------------------------------- +| The pattern for a default generated double-precision NaN. +*----------------------------------------------------------------------------*/ +#define defaultNaNF64UI UINT64_C(0xFFF8000000000000) + +/*---------------------------------------------------------------------------- +*----------------------------------------------------------------------------*/ +#if defined INLINE_LEVEL && ( 1 <= INLINE_LEVEL ) +INLINE bool softfloat_isSigNaNF64UI( uint_fast64_t ui ) +{ + return + ( ( ui>>51 & 0xFFF ) == 0xFFE ) + && ( ui & UINT64_C( 0x0007FFFFFFFFFFFF ) ); +} +#else +bool softfloat_isSigNaNF64UI( uint_fast64_t ); +#endif + +/*---------------------------------------------------------------------------- +*----------------------------------------------------------------------------*/ +/*** MIGHT BE INLINE'D. ***/ +struct commonNaN softfloat_f64UIToCommonNaN( uint_fast64_t ); +uint_fast64_t softfloat_commonNaNToF64UI( struct commonNaN ); + +/*---------------------------------------------------------------------------- +| Takes two double-precision floating-point values `a' and `b', one of which +| is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a +| signaling NaN, the invalid exception is raised. +*----------------------------------------------------------------------------*/ +uint_fast64_t softfloat_propagateNaNF64UI( uint_fast64_t, uint_fast64_t ); + -- cgit v1.1