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33 lines
750 B
C
33 lines
750 B
C
/*
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* ====================================================
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* x87 FP implementation contributed to Newlib by
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* Dave Korn, November 2007. This file is placed in the
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* public domain. Permission to use, copy, modify, and
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* distribute this software is freely granted.
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* ====================================================
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*/
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#if defined(__GNUC__) && !defined(_SOFT_FLOAT)
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#include <math.h>
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/*
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* Fast math version of rintf(x)
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* Return x rounded to integral value according to the prevailing
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* rounding mode.
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* Method:
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* Using inline x87 asms.
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* Exception:
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* Governed by x87 FPCR.
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*/
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float _f_rintf (float x)
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{
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float _result;
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asm ("frndint" : "=t" (_result) : "0" (x));
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return _result;
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}
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#endif /* !__GNUC__ || _SOFT_FLOAT */
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