fract32.c

#include "fract32.h"



fract32_t fract32_create(uint32_t inNumerator, uint32_t inDenominator) {
	if(inDenominator <= inNumerator)
		return 0xFFFFFFFF;
	uint32_t tempMod = (inNumerator % inDenominator);
	uint32_t tempDiv = (0xFFFFFFFF / (inDenominator - 1));
	return (tempMod * tempDiv);
}

fract32_t fract32_invert(fract32_t inFract) {
	return (0xFFFFFFFF - inFract);
}

#ifndef FIXMATH_NO_64BIT
uint32_t fract32_usmul(uint32_t inVal, fract32_t inFract) {
	return (uint32_t)(((uint64_t)inVal * (uint64_t)inFract) >> 32);
}

int32_t fract32_smul(int32_t inVal, fract32_t inFract) {
	if(inVal < 0)
        return -(int32_t)fract32_usmul(-inVal, inFract);
	return fract32_usmul(inVal, inFract);
}
#endif