From f95a4a932476be2ba99e2fd081e8d2bc6ea12813 Mon Sep 17 00:00:00 2001 From: PikalaxALT Date: Fri, 15 Dec 2017 09:38:53 -0500 Subject: Import newlib and create makefile --- newlib/libm/mathfp/s_ispos.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 newlib/libm/mathfp/s_ispos.c (limited to 'newlib/libm/mathfp/s_ispos.c') diff --git a/newlib/libm/mathfp/s_ispos.c b/newlib/libm/mathfp/s_ispos.c new file mode 100644 index 0000000..2077999 --- /dev/null +++ b/newlib/libm/mathfp/s_ispos.c @@ -0,0 +1,35 @@ + +/* @(#)z_ispos.c 1.0 98/08/13 */ +/****************************************************************** + * Numtest + * + * Input: + * x - pointer to a floating point value + * + * Output: + * An integer that indicates if the number is positive. + * + * Description: + * This routine returns an integer that indicates if the number + * passed in is positive (1) or negative (0). + * + *****************************************************************/ + +#include "fdlibm.h" +#include "zmath.h" + +#ifndef _DOUBLE_IS_32BITS + +int ispos (double x) +{ + __uint32_t hx; + + GET_HIGH_WORD (hx, x); + + if (hx & 0x80000000) + return (0); + else + return (1); +} + +#endif /* _DOUBLE_IS_32BITS */ -- cgit v1.2.3