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newlib: update

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git-svn-id: svn://kolibrios.org@1906 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge)
2011-03-11 18:52:24 +00:00
parent a316fa7c9d
commit 2336060a0c
297 changed files with 26930 additions and 2094 deletions
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programs/develop/libraries/newlib/math/modfl.c
+22
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@@ -0,0 +1,22 @@
#include <fenv.h>
#include <math.h>
#include <errno.h>
#define FE_ROUNDING_MASK \
(FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)
long double
modfl (long double value, long double* iptr)
{
long double int_part;
unsigned short saved_cw;
unsigned short tmp_cw;
/* truncate */
asm ("fnstcw %0;" : "=m" (saved_cw)); /* save control word */
tmp_cw = (saved_cw & ~FE_ROUNDING_MASK) | FE_TOWARDZERO;
asm ("fldcw %0;" : : "m" (tmp_cw));
asm ("frndint;" : "=t" (int_part) : "0" (value)); /* round */
asm ("fldcw %0;" : : "m" (saved_cw)); /* restore saved cw */
if (iptr)
*iptr = int_part;
return (isinf (value) ? 0.0L : value - int_part);
}