- remove files that are not either LGPL or Public Domain.

- pull replacement funcs for fpmacros.c from glibc

  This removes the powerpc/classic implementation which did not state any
  license but read:
  Copyright © 1991 Apple Computer, Inc.  All rights reserved.
  and thus was dubious (and not needed).

23 files changed, 313 insertions, 1750 deletions

diff --git a/libm/Makefile.in b/libm/Makefile.in
index f3768d38e..a94989dcf 100644
--- a/libm/Makefile.in
+++ b/libm/Makefile.in
@@ -34,15 +34,10 @@ libm_OUT:=$(top_builddir)libm
 
 # Fix builds for powerpc as there are different cores in this 
 # section now.`
-ifeq ($(TARGET_ARCH),powerpc)
-ifeq ($(CONFIG_E500),y)
+ifeq ($(TARGET_ARCH)-$(CONFIG_E500),powerpc-y)
 libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)/e500
 libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)/e500
 else
-libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)/classic
-libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)/classic
-endif
-else
 libm_ARCH_DIR:=$(libm_DIR)/$(TARGET_ARCH)
 libm_ARCH_OUT:=$(libm_OUT)/$(TARGET_ARCH)
 endif
@@ -74,7 +69,9 @@ libm_CSRC := \
 	w_cabs.c w_cosh.c w_drem.c w_exp.c w_fmod.c w_gamma.c w_gamma_r.c \
 	w_hypot.c w_j0.c w_j1.c w_jn.c w_lgamma.c w_lgamma_r.c \
 	w_log.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sinh.c \
-	w_sqrt.c fpmacros.c nan.c carg.c s_llrint.c
+	w_sqrt.c nan.c carg.c s_llrint.c \
+	s_fpclassify.c s_fpclassifyf.c s_signbit.c s_signbitf.c \
+	s_isnan.c s_isnanf.c s_isnf.c s_isinff.c
 FL_MOBJ := \
 	acosf.o acoshf.o asinf.o asinhf.o atan2f.o atanf.o atanhf.o cbrtf.o \
 	ceilf.o copysignf.o cosf.o coshf.o erfcf.o erff.o exp2f.o expf.o \
@@ -103,13 +100,9 @@ endif
 ifeq ($(UCLIBC_HAS_FPU),y)
 ifeq ($(DO_C99_MATH),y)
 ifneq ($(strip $(libm_ARCH_OBJS)),)
-ifeq ($(TARGET_ARCH),powerpc)
-ifeq ($(CONFIG_E500),y)
+ifeq ($(TARGET_ARCH)-$(CONFIG_E500),powerpc-y)
 CFLAGS-libm/$(TARGET_ARCH)/e500/ := $(CFLAGS-libm)
 else
-CFLAGS-libm/$(TARGET_ARCH)/classic/ := $(CFLAGS-libm)
-endif
-else
 CFLAGS-libm/$(TARGET_ARCH)/ := $(CFLAGS-libm)
 endif
 
diff --git a/libm/fp_private.h b/libm/fp_private.h
deleted file mode 100644
index 0ddb616c4..000000000
--- a/libm/fp_private.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*******************************************************************************
-*                                                                              *
-*      File fp_private.h,                                                      *
-*      All pack 4 dependencies for the MathLib elems plus some defines used    *
-*      throughout MathLib.                                                     *
-*                                                                              *
-*      Copyright © 1991 Apple Computer, Inc.  All rights reserved.             *
-*                                                                              *
-*      Written by Ali Sazegari, started on October 1991,                       *
-*                                                                              *
-*      W A R N I N G:  This routine expects a 64 bit double model.             *
-*                                                                              *
-*******************************************************************************/
-
-#define      NoException            0
-
-/*******************************************************************************
-*                              Values of constants.                            *
-*******************************************************************************/
-
-//#define    SgnMask            0x8000
-#define      dSgnMask           0x80000000
-#define      sSgnMask           0x7FFFFFFF
-
-//#define    ExpMask            0x7FFF
-#define      dExpMask           0x7FF00000
-#define      sExpMask           0xFF000000
-
-                                          /* according to rounding BIG & SMALL are:  */
-#define      BIG               1.1e+300   /* used to deliver ±° or largest number,   */
-#define      SMALL             1.1e-300   /* used to deliver ±0 or smallest number.  */
-#define      InfExp            0x7FF
-#define      dMaxExp           0x7FF00000
-
-#define      MaxExpP1          1024
-#define      MaxExp            1023
-
-#define      DenormLimit       -52
-
-//#define    ManMask           0x80000000
-#define      dManMask          0x00080000
-
-//#define    IsItDenorm         0x80000000
-#define      dIsItDenorm        0x00080000
-
-//#define    xIsItSNaN          0x40000000
-#define      dIsItSNaN          0x00080000
-
-#define      dHighMan           0x000FFFFF
-#define      dFirstBitSet       0x00080000
-#define      BIAS               0x3FF
-
-//#define    GetSign            0x8000
-#define      dGetSign           0x80000000
-#define      sGetSign           0x80000000
-
-//#define    Infinity(x)       ( x.hex.exponent & ExpMask ) == ExpMask
-#define      dInfinity(x)      ( x.hex.high & dExpMask ) == dExpMask
-#define      sInfinity(x)      ( ( x.hexsgl << 1 ) & sExpMask ) == sExpMask
-
-//#define    Exponent(x)       x.hex.exponent & ExpMask
-#define      dExponent(x)      x.hex.high & dExpMask
-#define      sExponent(x)      ( ( x.hexsgl << 1 ) & sExpMask )
-
-#define      sZero(x)          ( x.hexsgl & sSgnMask ) == 0
-//#define    Sign(x)           ( x.hex.exponent & SgnMask ) == SgnMask
-
-/*******************************************************************************
-*                        Types used in the auxiliary functions.                *
-*******************************************************************************/
-
-#include <stdint.h>
-#include <endian.h>
-
-typedef struct                   /*      Hex representation of a double.      */
-      {
-#if (__BYTE_ORDER == __BIG_ENDIAN)
-      uint32_t high;
-      uint32_t low;
-#else
-      uint32_t low;
-      uint32_t high;
-#endif
-      } dHexParts;
-
-typedef union
-      {
-      unsigned char byties[8];
-      double dbl;
-      } DblInHex;
diff --git a/libm/fpmacros.c b/libm/fpmacros.c
deleted file mode 100644
index 0a079c016..000000000
--- a/libm/fpmacros.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/***********************************************************************
-**  File:  fpmacros.c
-**
-**  Contains:  C source code for implementations of floating-point
-**             functions which involve float format numbers, as
-**             defined in header <fp.h>.  In particular, this file
-**             contains implementations of functions
-**              __fpclassify(d,f), __isnormal(d,f), __isfinite(d,f),
-**             __isnan(d,f), and __signbit(d,f).  This file targets
-**             PowerPC platforms.
-**
-**  Written by:   Robert A. Murley, Ali Sazegari
-**
-**  Copyright:   c 2001 by Apple Computer, Inc., all rights reserved
-**
-**  Change History (most recent first):
-**
-**     07 Jul 01   ram      First created from fpfloatfunc.c, fp.c,
-**				classify.c and sign.c in MathLib v3 Mac OS9.
-**
-***********************************************************************/
-
-#include     <features.h>
-#include     <sys/types.h>
-#include     <math.h>
-#include     "fp_private.h"
-
-#define SIGN_MASK 0x80000000
-#define NSIGN_MASK 0x7fffffff
-#define FEXP_MASK 0x7f800000
-#define FFRAC_MASK 0x007fffff
-
-/***********************************************************************
-   int __fpclassifyf(float x) returns the classification code of the
-   argument x, as defined in <fp.h>.
-
-   Exceptions:  INVALID signaled if x is a signaling NaN; in this case,
-                the FP_QNAN code is returned.
-
-   Calls:  none
-***********************************************************************/
-
-libm_hidden_proto(__fpclassifyf)
-int __fpclassifyf ( float x )
-{
-   unsigned int iexp;
-
-   union {
-      u_int32_t lval;
-      float fval;
-   } z;
-
-   z.fval = x;
-   iexp = z.lval & FEXP_MASK;                 /* isolate float exponent */
-
-   if (iexp == FEXP_MASK) {                   /* NaN or INF case */
-      if ((z.lval & 0x007fffff) == 0)
-         return FP_INFINITE;
-	return FP_NAN;
-   }
-
-   if (iexp != 0)                             /* normal float */
-      return FP_NORMAL;
-
-   if (x == 0.0)
-      return FP_ZERO;             /* zero */
-   else
-      return FP_SUBNORMAL;        /* must be subnormal */
-}
-libm_hidden_def(__fpclassifyf)
-
-
-/***********************************************************************
-      Function __fpclassify,
-      Implementation of classify of a double number for the PowerPC.
-
-   Exceptions:  INVALID signaled if x is a signaling NaN; in this case,
-                the FP_QNAN code is returned.
-
-   Calls:  none
-***********************************************************************/
-
-libm_hidden_proto(__fpclassify)
-int __fpclassify ( double arg )
-{
-	register unsigned int exponent;
-      union
-            {
-            dHexParts hex;
-            double dbl;
-            } x;
-
-	x.dbl = arg;
-
-	exponent = x.hex.high & dExpMask;
-	if ( exponent == dExpMask )
-		{
-		if ( ( ( x.hex.high & dHighMan ) | x.hex.low ) == 0 )
-			return FP_INFINITE;
-		else
-            	return FP_NAN;
-		}
-	else if ( exponent != 0)
-		return FP_NORMAL;
-	else {
-		if ( arg == 0.0 )
-			return FP_ZERO;
-		else
-			return FP_SUBNORMAL;
-		}
-}
-libm_hidden_def(__fpclassify)
-
-
-/***********************************************************************
-   int __isnormalf(float x) returns nonzero if and only if x is a
-   normalized float number and zero otherwise.
-
-   Exceptions:  INVALID is raised if x is a signaling NaN; in this case,
-                zero is returned.
-
-   Calls:  none
-***********************************************************************/
-
-int __isnormalf ( float x );
-int __isnormalf ( float x )
-{
-   unsigned int iexp;
-   union {
-      u_int32_t lval;
-      float fval;
-   } z;
-
-   z.fval = x;
-   iexp = z.lval & FEXP_MASK;                 /* isolate float exponent */
-   return ((iexp != FEXP_MASK) && (iexp != 0));
-}
-
-
-int __isnormal ( double x );
-int __isnormal ( double x )
-{
-	return ( __fpclassify ( x ) == FP_NORMAL );
-}
-
-
-/***********************************************************************
-   int __isfinitef(float x) returns nonzero if and only if x is a
-   finite (normal, subnormal, or zero) float number and zero otherwise.
-
-   Exceptions:  INVALID is raised if x is a signaling NaN; in this case,
-                zero is returned.
-
-   Calls:  none
-***********************************************************************/
-
-int __finitef ( float x )
-{
-   union {
-      u_int32_t lval;
-      float fval;
-   } z;
-
-   z.fval = x;
-   return ((z.lval & FEXP_MASK) != FEXP_MASK);
-}
-strong_alias(__finitef,finitef)
-
-#if 0 /* use __finite in s_finite.c */
-int __finite ( double x )
-{
-	return ( __fpclassify ( x ) >= FP_ZERO );
-}
-strong_alias(__finite,finite)
-#endif
-
-
-/***********************************************************************
-   int __signbitf(float x) returns nonzero if and only if the sign
-   bit of x is set and zero otherwise.
-
-   Exceptions:  INVALID is raised if x is a signaling NaN.
-
-   Calls:  none
-***********************************************************************/
-
-libm_hidden_proto(__signbitf)
-int __signbitf ( float x )
-{
-   union {
-      u_int32_t lval;
-      float fval;
-   } z;
-
-   z.fval = x;
-   return ((z.lval & SIGN_MASK) != 0);
-}
-libm_hidden_def(__signbitf)
-
-
-/***********************************************************************
-      Function sign of a double.
-      Implementation of sign bit for the PowerPC.
-
-   Calls:  none
-***********************************************************************/
-
-libm_hidden_proto(__signbit)
-int __signbit ( double arg )
-{
-      union
-            {
-            dHexParts hex;
-            double dbl;
-            } x;
-      int sign;
-
-      x.dbl = arg;
-      sign = ( ( x.hex.high & dSgnMask ) == dSgnMask ) ? 1 : 0;
-      return sign;
-}
-libm_hidden_def(__signbit)
-
-
-/***********************************************************************
-* int __isinff(float x) returns -1 if value represents  negative
-*	infinity,  1  if value represents positive infinity,
-*	and 0 otherwise.
-*
-* Calls:  __signbit
-* +***********************************************************************/
-int __isinff ( float x )
-{
-    int class = __fpclassifyf(x);
-    if ( class == FP_INFINITE ) {
-	return ( (__signbitf(x)) ? -1 : 1);
-    }
-    return 0;
-}
-strong_alias(__isinff,isinff)
-
-int __isinf ( double x )
-{
-    int class = __fpclassify(x);
-    if ( class == FP_INFINITE ) {
-	return ( (__signbit(x)) ? -1 : 1);
-    }
-    return 0;
-}
-strong_alias(__isinf,isinf)
-
-#if 0
-int __isinfl ( long double x )
-{
-    int class = __fpclassify(x);
-    if ( class == FP_INFINITE ) {
-	return ( (__signbit(x)) ? -1 : 1);
-    }
-    return 0;
-}
-strong_alias(__isinfl,isinfl)
-#endif
-
-/***********************************************************************
-   int __isnanf(float x) returns nonzero if and only if x is a
-   NaN and zero otherwise.
-
-   Exceptions:  INVALID is raised if x is a signaling NaN; in this case,
-                nonzero is returned.
-
-   Calls:  none
-***********************************************************************/
-
-int __isnanf ( float x )
-{
-   union {
-      u_int32_t lval;
-      float fval;
-   } z;
-
-   z.fval = x;
-   return (((z.lval&FEXP_MASK) == FEXP_MASK) && ((z.lval&FFRAC_MASK) != 0));
-}
-strong_alias(__isnanf,isnanf)
-
-libm_hidden_proto(__isnan)
-int __isnan ( double x )
-{
-	int class = __fpclassify(x);
-	return ( class == FP_NAN );
-}
-libm_hidden_def(__isnan)
-strong_alias(__isnan,isnan)
-
-#if 0
-int __isnanl ( long double x )
-{
-	int class = __fpclassify(x);
-	return ( class == FP_NAN );
-}
-strong_alias(__isnanl,isnanl)
-#endif
-
diff --git a/libm/powerpc/classic/s_ceil.c b/libm/powerpc/classic/s_ceil.c
deleted file mode 100644
index ee4ceb5fc..000000000
--- a/libm/powerpc/classic/s_ceil.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*******************************************************************************
-*                                                                              *
-*      File ceilfloor.c,                                                       *
-*      Function ceil(x) and floor(x),                                          *
-*      Implementation of ceil and floor for the PowerPC.                       *
-*                                                                              *
-*      Copyright © 1991 Apple Computer, Inc.  All rights reserved.             *
-*                                                                              *
-*      Written by Ali Sazegari, started on November 1991,                      *
-*                                                                              *
-*      based on math.h, library code for Macintoshes with a 68881/68882        *
-*      by Jim Thomas.                                                          *
-*                                                                              *
-*      W A R N I N G:  This routine expects a 64 bit double model.             *
-*                                                                              *
-*      December 03 1992: first rs6000 port.                                    *
-*      July     14 1993: comment changes and addition of #pragma fenv_access.  *
-*	 May      06 1997: port of the ibm/taligent ceil and floor routines.     *
-*	 April    11 2001: first port to os x using gcc.				 *
-*	 June	    13 2001: replaced __setflm with in-line assembly			 *
-*                                                                              *
-*******************************************************************************/
-
-#include <math.h>
-#include <endian.h>
-
-static const double        twoTo52  = 4503599627370496.0;
-static const unsigned long signMask = 0x80000000ul;
-
-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;
-
-/*******************************************************************************
-*            Functions needed for the computation.                             *
-*******************************************************************************/
-
-/*******************************************************************************
-*      Ceil(x) returns the smallest integer not less than x.                   *
-*******************************************************************************/
-
-libm_hidden_proto(ceil)
-double ceil ( double x )
-	{
-	DblInHex xInHex,OldEnvironment;
-	register double y;
-	register unsigned long int xhi;
-	register int target;
-
-	xInHex.dbl = x;
-	xhi = xInHex.words.hi & 0x7fffffffUL;	  // xhi is the high half of |x|
-	target = ( xInHex.words.hi < signMask );
-
-	if ( xhi < 0x43300000ul )
-/*******************************************************************************
-*      Is |x| < 2.0^52?                                                        *
-*******************************************************************************/
-		{
-		if ( xhi < 0x3ff00000ul )
-/*******************************************************************************
-*      Is |x| < 1.0?                                                           *
-*******************************************************************************/
-			{
-			if ( ( xhi | xInHex.words.lo ) == 0ul )  // zero x is exact case
-				return ( x );
-			else
-				{			                // inexact case
-				__asm__ ("mffs %0" : "=f" (OldEnvironment.dbl));
-				OldEnvironment.words.lo |= 0x02000000ul;
-				__asm__ ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-				if ( target )
-					return ( 1.0 );
-				else
-					return ( -0.0 );
-				}
-			}
-/*******************************************************************************
-*      Is 1.0 < |x| < 2.0^52?                                                  *
-*******************************************************************************/
-		if ( target )
-			{
-			y = ( x + twoTo52 ) - twoTo52;          // round at binary pt.
-			if ( y < x )
-				return ( y + 1.0 );
-			else
-				return ( y );
-			}
-
-		else
-			{
-			y = ( x - twoTo52 ) + twoTo52;          // round at binary pt.
-			if ( y < x )
-				return ( y + 1.0 );
-			else
-				return ( y );
-			}
-		}
-/*******************************************************************************
-*      |x| >= 2.0^52 or x is a NaN.                                            *
-*******************************************************************************/
-	return ( x );
-	}
-libm_hidden_def(ceil)
diff --git a/libm/powerpc/classic/s_copysign.c b/libm/powerpc/classic/s_copysign.c
deleted file mode 100644
index c6f1307a3..000000000
--- a/libm/powerpc/classic/s_copysign.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*******************************************************************************
-*                                                                              *
-*      File sign.c,                                                            *
-*      Functions copysign and __signbitd.					             *
-*      For PowerPC based machines.                                             *
-*                                                                              *
-*      Copyright © 1991, 2001 Apple Computer, Inc.  All rights reserved.       *
-*                                                                              *
-*      Written by Ali Sazegari, started on June 1991.                          *
-*                                                                              *
-*      August    26 1991: no CFront Version 1.1d17 warnings.                   *
-*      September 06 1991: passes the test suite with invalid raised on         *
-*                         signaling nans.  sane rom code behaves the same.     *
-*      September 24 1992: took the Ò#include support.hÓ out.                   *
-*      Dcember   02 1992: PowerPC port.                                        *
-*      July      20 1994: __fabs added                                         *
-*      July      21 1994: deleted unnecessary functions: neg, COPYSIGNnew,     *
-*                         and SIGNNUMnew.                                      *
-*	 April     11 2001: first port to os x using gcc.				 *
-*				  removed fabs and deffered to gcc for direct          *
-*				  instruction generation.					 *
-*                                                                              *
-*******************************************************************************/
-
-#include <math.h>
-#include "../../fp_private.h"
-
-/*******************************************************************************
-*                                                                              *
-*     Function copysign.                                                       *
-*     Implementation of copysign for the PowerPC.                              *
-*                                                                              *
-********************************************************************************
-*     Note: The order of the operands in this function is reversed from that   *
-*     suggested in the IEEE standard 754.                                      *
-*******************************************************************************/
-
-libm_hidden_proto(copysign)
-double copysign ( double arg2, double arg1 )
-      {
-      union
-            {
-            dHexParts hex;
-            double dbl;
-            } x, y;
-
-/*******************************************************************************
-*     No need to flush NaNs out.                                               *
-*******************************************************************************/
-
-      x.dbl = arg1;
-      y.dbl = arg2;
-
-      y.hex.high = y.hex.high & 0x7FFFFFFF;
-      y.hex.high = ( y.hex.high | ( x.hex.high & dSgnMask ) );
-
-      return y.dbl;
-      }
-libm_hidden_def(copysign)
diff --git a/libm/powerpc/classic/s_floor.c b/libm/powerpc/classic/s_floor.c
deleted file mode 100644
index 2cd720eff..000000000
--- a/libm/powerpc/classic/s_floor.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*******************************************************************************
-*                                                                              *
-*      File ceilfloor.c,                                                       *
-*      Function ceil(x) and floor(x),                                          *
-*      Implementation of ceil and floor for the PowerPC.                       *
-*                                                                              *
-*      Copyright © 1991 Apple Computer, Inc.  All rights reserved.             *
-*                                                                              *
-*      Written by Ali Sazegari, started on November 1991,                      *
-*                                                                              *
-*      based on math.h, library code for Macintoshes with a 68881/68882        *
-*      by Jim Thomas.                                                          *
-*                                                                              *
-*      W A R N I N G:  This routine expects a 64 bit double model.             *
-*                                                                              *
-*      December 03 1992: first rs6000 port.                                    *
-*      July     14 1993: comment changes and addition of #pragma fenv_access.  *
-*	 May      06 1997: port of the ibm/taligent ceil and floor routines.     *
-*	 April    11 2001: first port to os x using gcc.				 *
-*	 June	    13 2001: replaced __setflm with in-line assembly			 *
-*                                                                              *
-*******************************************************************************/
-
-#include <math.h>
-#include <endian.h>
-
-static const double        twoTo52  = 4503599627370496.0;
-static const unsigned long signMask = 0x80000000ul;
-
-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;
-
-/*******************************************************************************
-*            Functions needed for the computation.                             *
-*******************************************************************************/
-
-/*******************************************************************************
-*      Floor(x) returns the largest integer not greater than x.                *
-*******************************************************************************/
-
-libm_hidden_proto(floor)
-double floor ( double x )
-	{
-	DblInHex xInHex,OldEnvironment;
-	register double y;
-	register unsigned long int xhi;
-	register long int target;
-
-	xInHex.dbl = x;
-	xhi = xInHex.words.hi & 0x7fffffffUL;	  // xhi is the high half of |x|
-	target = ( xInHex.words.hi < signMask );
-
-	if ( xhi < 0x43300000ul )
-/*******************************************************************************
-*      Is |x| < 2.0^52?                                                        *
-*******************************************************************************/
-		{
-		if ( xhi < 0x3ff00000ul )
-/*******************************************************************************
-*      Is |x| < 1.0?                                                           *
-*******************************************************************************/
-			{
-			if ( ( xhi | xInHex.words.lo ) == 0ul )  // zero x is exact case
-				return ( x );
-			else
-				{			                // inexact case
-				__asm__ ("mffs %0" : "=f" (OldEnvironment.dbl));
-				OldEnvironment.words.lo |= 0x02000000ul;
-				__asm__ ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl ));
-				if ( target )
-					return ( 0.0 );
-				else
-					return ( -1.0 );
-				}
-			}
-/*******************************************************************************
-*      Is 1.0 < |x| < 2.0^52?                                                  *
-*******************************************************************************/
-		if ( target )
-			{
-			y = ( x + twoTo52 ) - twoTo52;          // round at binary pt.
-			if ( y > x )
-				return ( y - 1.0 );
-			else
-				return ( y );
-			}
-
-		else
-			{
-			y = ( x - twoTo52 ) + twoTo52;          // round at binary pt.
-			if ( y > x )
-				return ( y - 1.0 );
-			else
-				return ( y );
-			}
-		}
-/*******************************************************************************
-*      |x| >= 2.0^52 or x is a NaN.                                            *
-*******************************************************************************/
-	return ( x );
-	}
-libm_hidden_def(floor)
diff --git a/libm/powerpc/classic/s_frexp.c b/libm/powerpc/classic/s_frexp.c
deleted file mode 100644
index 001aaf708..000000000
--- a/libm/powerpc/classic/s_frexp.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*******************************************************************************
-*                                                                              *
-*      File frexpldexp.c,                                                      *
-*      Functions frexp(x) and ldexp(x),                                        *
-*      Implementation of frexp and ldexp functions for the PowerPC.            *
-*                                                                              *
-*      Copyright © 1991 Apple Computer, Inc.  All rights reserved.             *
-*                                                                              *
-*      Written by Ali Sazegari, started on January 1991,                       *
-*                                                                              *
-*      W A R N I N G:  This routine expects a 64 bit double model.             *
-*                                                                              *
-*      December03 1992: first rs6000 implementation.                           *
-*      October 05 1993: added special cases for NaN and ° in frexp.            *
-*      May     27 1997: improved the performance of frexp by eliminating the   *
-*                       switch statement.                                      *
-*	 June	   13 2001: (ram) rewrote frexp to eliminate calls to scalb and    *
-*				logb.									 *
-*                                                                              *
-*******************************************************************************/
-
-#include <limits.h>
-#include <math.h>
-#include <endian.h>
-
-static const double two54 =  1.80143985094819840000e+16; /* 0x43500000, 0x00000000 */
-
-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;
-
-libm_hidden_proto(frexp)
-double frexp ( double value, int *eptr )
-      {
-      DblInHex argument;
-      unsigned long int valueHead;
-
-      argument.dbl = value;
-      valueHead = argument.words.hi & 0x7fffffffUL; // valueHead <- |x|
-
-      *eptr = 0;
-	if ( valueHead >= 0x7ff00000 || ( valueHead | argument.words.lo ) == 0 )
-		return value;		// 0, inf, or NaN
-
-	if ( valueHead < 0x00100000 )
-		{	// denorm
-		argument.dbl = two54 * value;
-		valueHead = argument.words.hi &0x7fffffff;
-		*eptr = -54;
-		}
-	*eptr += ( valueHead >> 20 ) - 1022;
-	argument.words.hi = ( argument.words.hi & 0x800fffff ) | 0x3fe00000;
-	return argument.dbl;
-	}
-libm_hidden_def(frexp)
diff --git a/libm/powerpc/classic/s_ldexp.c b/libm/powerpc/classic/s_ldexp.c
deleted file mode 100644
index 10100d7c2..000000000
--- a/libm/powerpc/classic/s_ldexp.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/******************