From Steve Papacharalambous:

Add math support for PowerPC e500.

1 files changed, 0 insertions, 344 deletions

diff --git a/libm/powerpc/s_modf.c b/libm/powerpc/s_modf.c
deleted file mode 100644
index b9d69445d..000000000
--- a/libm/powerpc/s_modf.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*******************************************************************************
-**      File:   rndint.c
-**
-**      Contains: C source code for implementations of floating-point
-**                functions which round to integral value or format, as
-**                defined in header <fp.h>.  In particular, this file
-**                contains implementations of functions rinttol, roundtol,
-**                modf and modfl.  This file targets PowrPC or Power platforms.
-**
-**      Written by: A. Sazegari, Apple AltiVec Group
-**	    Created originally by Jon Okada, Apple Numerics Group
-**
-**      Copyright: © 1992-2001 by Apple Computer, Inc., all rights reserved
-**
-**      Change History (most recent first):
-**
-**      13 Jul 01  ram  replaced --setflm calls with inline assembly
-**      03 Mar 01  ali	first port to os x using gcc, added the crucial __setflm
-**                      definition.
-**				1. removed double_t, put in double for now.
-**				2. removed iclass from nearbyint.
-**				3. removed wrong comments intrunc.
-**				4.
-**      13 May 97  ali  made performance improvements in rint, rinttol, roundtol
-**                      and trunc by folding some of the taligent ideas into this
-**                      implementation.  nearbyint is faster than the one in taligent,
-**                      rint is more elegant, but slower by %30 than the taligent one.
-**      09 Apr 97  ali  deleted modfl and deferred to AuxiliaryDD.c
-**      15 Sep 94  ali  Major overhaul and performance improvements of all functions.
-**      20 Jul 94  PAF  New faster version
-**      16 Jul 93  ali  Added the modfl function.
-**      18 Feb 93  ali  Changed the return value of fenv functions
-**                      feclearexcept and feraiseexcept to their new
-**                      NCEG X3J11.1/93-001 definitions.
-**      16 Dec 92  JPO  Removed __itrunc implementation to a
-**                      separate file.
-**      15 Dec 92  JPO  Added __itrunc implementation and modified
-**                      rinttol to include conversion from double
-**                      to long int format.  Modified roundtol to
-**                      call __itrunc.
-**      10 Dec 92  JPO  Added modf (double) implementation.
-**      04 Dec 92  JPO  First created.
-**
-*******************************************************************************/
-
-#include <limits.h>
-#include <math.h>
-#include <endian.h>
-
-#define      SET_INVALID      0x01000000UL
-
-typedef union
-      {
-      struct {
-#if (__BYTE_ORDER == __BIG_ENDIAN)
-        unsigned long int hi;
-        unsigned long int lo;
-#else
-        unsigned long int lo;
-        unsigned long int hi;
-#endif
-      } words;
-      double dbl;
-      } DblInHex;
-
-static const unsigned long int signMask = 0x80000000ul;
-static const double twoTo52      = 4503599627370496.0;
-static const double doubleToLong = 4503603922337792.0;	            // 2^52
-static const DblInHex TOWARDZERO = {{ 0x00000000, 0x00000001 }};
-
-
-/*******************************************************************************
-*                                                                              *
-*     The function rinttol converts its double argument to integral value      *
-*     according to the current rounding direction and returns the result in    *
-*     long int format.  This conversion signals invalid if the argument is a   *
-*     NaN or the rounded intermediate result is out of range of the            *
-*     destination long int format, and it delivers an unspecified result in    *
-*     this case.  This function signals inexact if the rounded result is       *
-*     within range of the long int format but unequal to the operand.          *
-*                                                                              *
-*******************************************************************************/
-
-long int rinttol ( double x )
-      {
-      register double y;
-      DblInHex argument, OldEnvironment;
-      unsigned long int xHead;
-      register long int target;
-
-      argument.dbl = x;
-      target = ( argument.words.hi < signMask );        // flag positive sign
-      xHead = argument.words.hi & 0x7ffffffful;         // high 32 bits of x
-
-      if ( target )
-/*******************************************************************************
-*    Sign of x is positive.                                                    *
-*******************************************************************************/
-            {
-            if ( xHead < 0x41dffffful )
-                  {                                    // x is safely in long range
-                  y = ( x + twoTo52 ) - twoTo52;       // round at binary point
-                  argument.dbl = y + doubleToLong;     // force result into argument.words.lo
-                  return ( ( long ) argument.words.lo );
-                  }
-
-		asm ("mffs %0" : "=f" (OldEnvironment.dbl));	// get environment
-
-            if ( xHead > 0x41dffffful )
-                  {                                    // x is safely out of long range
-                  OldEnvironment.words.lo |= SET_INVALID;
-			asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-                  return ( LONG_MAX );
-                  }
-
-/*******************************************************************************
-*     x > 0.0 and may or may not be out of range of long.                      *
-*******************************************************************************/
-
-            y = ( x + twoTo52 ) - twoTo52;             // do rounding
-            if ( y > ( double ) LONG_MAX )
-                  {                                    // out of range of long
-                  OldEnvironment.words.lo |= SET_INVALID;
-			asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-                  return ( LONG_MAX );
-                  }
-            argument.dbl = y + doubleToLong;           // in range
-            return ( ( long ) argument.words.lo );      // return result & flags
-            }
-
-/*******************************************************************************
-*    Sign of x is negative.                                                    *
-*******************************************************************************/
-      if ( xHead < 0x41e00000ul )
-            {                                          // x is safely in long range
-            y = ( x - twoTo52 ) + twoTo52;
-            argument.dbl = y + doubleToLong;
-            return ( ( long ) argument.words.lo );
-            }
-
-	asm ("mffs %0" : "=f" (OldEnvironment.dbl));	// get environment
-
-      if ( xHead > 0x41e00000ul )
-            {                                          // x is safely out of long range
-            OldEnvironment.words.lo |= SET_INVALID;
-		asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-            return ( LONG_MIN );
-            }
-
-/*******************************************************************************
-*    x < 0.0 and may or may not be out of range of long.                       *
-*******************************************************************************/
-
-      y = ( x - twoTo52 ) + twoTo52;                   // do rounding
-      if ( y < ( double ) LONG_MIN )
-            {                                          // out of range of long
-            OldEnvironment.words.lo |= SET_INVALID;
-		asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-            return ( LONG_MIN );
-            }
-      argument.dbl = y + doubleToLong;                       // in range
-      return ( ( long ) argument.words.lo );           // return result & flags
-      }
-
-/*******************************************************************************
-*                                                                              *
-*     The function roundtol converts its double argument to integral format    *
-*     according to the "add half to the magnitude and chop" rounding mode of   *
-*     Pascal's Round function and FORTRAN's NINT function.  This conversion    *
-*     signals invalid if the argument is a NaN or the rounded intermediate     *
-*     result is out of range of the destination long int format, and it        *
-*     delivers an unspecified result in this case.  This function signals      *
-*     inexact if the rounded result is within range of the long int format but *
-*     unequal to the operand.                                                  *
-*                                                                              *
-*******************************************************************************/
-
-long int roundtol ( double x )
-	{
-	register double y, z;
-	DblInHex argument, OldEnvironment;
-	register unsigned long int xhi;
-	register long int target;
-	const DblInHex kTZ = {{ 0x0, 0x1 }};
-	const DblInHex kUP = {{ 0x0, 0x2 }};
-
-	argument.dbl = x;
-	xhi = argument.words.hi & 0x7ffffffful;	        	// high 32 bits of x
-	target = ( argument.words.hi < signMask );         	// flag positive sign
-
-	if ( xhi > 0x41e00000ul )
-/*******************************************************************************
-*     Is x is out of long range or NaN?                                        *
-*******************************************************************************/
-		{
-		asm ("mffs %0" : "=f" (OldEnvironment.dbl));	// get environment
-		OldEnvironment.words.lo |= SET_INVALID;
-		asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-		if ( target )			              	// pin result
-			return ( LONG_MAX );
-		else
-			return ( LONG_MIN );
-		}
-
-	if ( target )
-/*******************************************************************************
-*     Is sign of x is "+"?                                                     *
-*******************************************************************************/
-		{
-		if ( x < 2147483647.5 )
-/*******************************************************************************
-*     x is in the range of a long.                                             *
-*******************************************************************************/
-			{
-			y = ( x + doubleToLong ) - doubleToLong; 	// round at binary point
-			if ( y != x )
-				{		                    	// inexact case
-				asm ("mffs %0" : "=f" (OldEnvironment.dbl));	// save environment
-				asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( kTZ.dbl )); // truncate rounding
-				z = x + 0.5;		        	// truncate x + 0.5
-				argument.dbl = z + doubleToLong;
-				asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-				return ( ( long ) argument.words.lo );
-				}
-
-			argument.dbl = y + doubleToLong;		// force result into argument.words.lo
-			return ( ( long ) argument.words.lo ); 	// return long result
-			}
-/*******************************************************************************
-*     Rounded positive x is out of the range of a long.                        *
-*******************************************************************************/
-		asm ("mffs %0" : "=f" (OldEnvironment.dbl));
-		OldEnvironment.words.lo |= SET_INVALID;
-		asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-		return ( LONG_MAX );		              	// return pinned result
-		}
-/*******************************************************************************
-*     x < 0.0 and may or may not be out of the range of a long.                *
-*******************************************************************************/
-	if ( x > -2147483648.5 )
-/*******************************************************************************
-*     x is in the range of a long.                                             *
-*******************************************************************************/
-		{
-		y = ( x + doubleToLong ) - doubleToLong;	  	// round at binary point
-		if ( y != x )
-			{			                    	// inexact case
-			asm ("mffs %0" : "=f" (OldEnvironment.dbl));	// save environment
-			asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( kUP.dbl )); // round up
-			z = x - 0.5;		              	// truncate x - 0.5
-			argument.dbl = z + doubleToLong;
-			asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-			return ( ( long ) argument.words.lo );
-			}
-
-		argument.dbl = y + doubleToLong;
-		return ( ( long ) argument.words.lo );	  	//  return long result
-		}
-/*******************************************************************************
-*     Rounded negative x is out of the range of a long.                        *
-*******************************************************************************/
-	asm ("mffs %0" : "=f" (OldEnvironment.dbl));
-	OldEnvironment.words.lo |= SET_INVALID;
-	asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-	return ( LONG_MIN );			              	// return pinned result
-	}
-
-/*******************************************************************************
-*     The modf family of functions separate a floating-point number into its   *
-*     fractional and integral parts, returning the fractional part and writing *
-*     the integral part in floating-point format to the object pointed to by a *
-*     pointer argument.  If the input argument is integral or infinite in      *
-*     value, the return value is a zero with the sign of the input argument.   *
-*     The modf family of functions raises no floating-point exceptions. older  *
-*     implemenation set the INVALID flag due to signaling NaN input.           *
-*                                                                              *
-*******************************************************************************/
-
-/*******************************************************************************
-*     modf is the double implementation.                                       *
-*******************************************************************************/
-
-libm_hidden_proto(modf)
-double modf ( double x, double *iptr )
-      {
-      register double OldEnvironment, xtrunc;
-      register unsigned long int xHead, signBit;
-      DblInHex argument;
-
-      argument.dbl = x;
-      xHead = argument.words.hi & 0x7ffffffful;            // |x| high bit pattern
-      signBit = ( argument.words.hi & 0x80000000ul );      // isolate sign bit
-	  if (xHead == 0x7ff81fe0)
-			signBit = signBit | 0;
-
-      if ( xHead < 0x43300000ul )
-/*******************************************************************************
-*     Is |x| < 2.0^53?                                                         *
-*******************************************************************************/
-            {
-            if ( xHead < 0x3ff00000ul )
-/*******************************************************************************
-*     Is |x| < 1.0?                                                            *
-*******************************************************************************/
-                  {
-                  argument.words.hi = signBit;             // truncate to zero
-                  argument.words.lo = 0ul;
-                  *iptr = argument.dbl;
-                  return ( x );
-                  }
-/*******************************************************************************
-*     Is 1.0 < |x| < 2.0^52?                                                   *
-*******************************************************************************/
-			asm ("mffs %0" : "=f" (OldEnvironment));	// save environment
-			// round toward zero
-			asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( TOWARDZERO.dbl ));
-            if ( signBit == 0ul )                         // truncate to integer
-                  xtrunc = ( x + twoTo52 ) - twoTo52;
-            else
-                  xtrunc = ( x - twoTo52 ) + twoTo52;
-		// restore caller's env
-		asm ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment ));
-            *iptr = xtrunc;                               // store integral part
-            if ( x != xtrunc )                            // nonzero fraction
-                  return ( x - xtrunc );
-            else
-                  {                                       // zero with x's sign
-                  argument.words.hi = signBit;
-                  argument.words.lo = 0ul;
-                  return ( argument.dbl );
-                  }
-            }
-
-      *iptr = x;                                          // x is integral or NaN
-      if ( x != x )                                       // NaN is returned
-            return x;
-      else
-            {                                             // zero with x's sign
-            argument.words.hi = signBit;
-            argument.words.lo = 0ul;
-            return ( argument.dbl );
-            }
-      }
-libm_hidden_def(modf)