/* fixunssfsi() -- routine to convert a float to an unsigned 			*//* Copyright 1984-1994 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01a,13sep94,ism	 created.*//*DESCRIPTIONThis library contains the fixunssfsi() routine required by the GNUcompiler.  This addition fixes SPR #2649.AUTHORNOMANUAL*/#include "vxWorks.h"/********************************************************************************* __fixunssfsi - truncate a float to an unsigned** WARNING: This function is pass a float but we declare it a long so* we can fiddle with the bits.  If the value comes in on a floating* point register (such as with the sparc compiler), this aint gona work.** The magic numbers 23 and 0x7f appear frequently. Read the ieee spec for* more info.*/unsigned __fixunssfsi    (    long	a			/* this is really a float (yuk) */    )    {    int exp;				/* the exponent inside the float */     /*     * This handles numbers less than 1.0 including ALL negitive numbers.     */    if (a < (0x7f<<23))        return (0);    /*     * This handles all numbers to big.     */    if (a >= ((0x7f+32)<<23))        return (0xffffffff);		/* return MAX_UINT */     /*     * Get the exponent, then clear it out to leave just the mantissa.     */    exp = a>>23;    a &= 0x007fffff;		/* ((1<<23) - 1) */    a |= 0x00800000;		/* (1<<23) */     /*     * Shift the mantissa to the correct place, if exp == (0x7f+23) then     * it is already at the right place.     */    if (exp > (0x7f+23))        a <<= (exp - (0x7f+23));    else if (exp < (0x7f+23))        a >>= ((0x7f+23) - exp);    return (a);    }