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-rw-r--r--libm/powerpc/classic/s_trunc.c89
1 files changed, 0 insertions, 89 deletions
diff --git a/libm/powerpc/classic/s_trunc.c b/libm/powerpc/classic/s_trunc.c
deleted file mode 100644
index e9c6681..0000000
--- a/libm/powerpc/classic/s_trunc.c
+++ /dev/null
@@ -1,89 +0,0 @@
-#include <limits.h>
-#include <math.h>
-#include <endian.h>
-
-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)