From 0e05d9826e6d32a27392ed9d6fe613ef6cf957a0 Mon Sep 17 00:00:00 2001 From: Bernhard Reutner-Fischer Date: Thu, 25 Sep 2008 17:43:58 +0000 Subject: - remove files that are not either LGPL or Public Domain. - pull replacement funcs for fpmacros.c from glibc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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). --- libm/powerpc/classic/s_trunc.c | 89 ------------------------------------------ 1 file changed, 89 deletions(-) delete mode 100644 libm/powerpc/classic/s_trunc.c (limited to 'libm/powerpc/classic/s_trunc.c') diff --git a/libm/powerpc/classic/s_trunc.c b/libm/powerpc/classic/s_trunc.c deleted file mode 100644 index e9c668127..000000000 --- a/libm/powerpc/classic/s_trunc.c +++ /dev/null @@ -1,89 +0,0 @@ -#include -#include -#include - -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; - -/******************************************************************************* -* * -* The function trunc truncates its double argument to integral value * -* and returns the result in double format. This function signals * -* inexact if an ordered return value is not equal to the operand. * -* * -*******************************************************************************/ - -libm_hidden_proto(trunc) -double trunc ( double x ) - { - DblInHex argument,OldEnvironment; - register double y; - register unsigned long int xhi; - register long int target; - - argument.dbl = x; - xhi = argument.words.hi & 0x7fffffffUL; // xhi <- high half of |x| - target = ( argument.words.hi < signMask ); // flag positive sign - - if ( xhi < 0x43300000ul ) -/******************************************************************************* -* Is |x| < 2.0^53? * -*******************************************************************************/ - { - if ( xhi < 0x3ff00000ul ) -/******************************************************************************* -* Is |x| < 1.0? * -*******************************************************************************/ - { - if ( ( xhi | argument.words.lo ) != 0ul ) - { // raise deserved INEXACT - __asm__ ("mffs %0" : "=f" (OldEnvironment.dbl)); - OldEnvironment.words.lo |= 0x02000000ul; - __asm__ ("mtfsf 255,%0" : /*NULLOUT*/ : /*IN*/ "f" ( OldEnvironment.dbl )); - } - if ( target ) // return properly signed zero - return ( 0.0 ); - else - return ( -0.0 ); - } -/******************************************************************************* -* Is 1.0 < |x| < 2.0^52? * -*******************************************************************************/ - if ( target ) - { - y = ( x + twoTo52 ) - twoTo52; // round at binary point - if ( y > x ) - return ( y - 1.0 ); - else - return ( y ); - } - - else - { - y = ( x - twoTo52 ) + twoTo52; // round at binary point. - if ( y < x ) - return ( y + 1.0 ); - else - return ( y ); - } - } -/******************************************************************************* -* Is |x| >= 2.0^52 or x is a NaN. * -*******************************************************************************/ - return ( x ); - } -libm_hidden_def(trunc) -- cgit v1.2.3