Fixed point division

Functions
arm_status	arm_divide_q15 (q15_t numerator, q15_t denominator, q15_t *quotient, int16_t *shift)
	Fixed point division. More...
arm_status	arm_divide_q31 (q31_t numerator, q31_t denominator, q31_t *quotient, int16_t *shift)
	Fixed point division. More...

Description

Function Documentation

arm_divide_q15()

arm_status arm_divide_q15	(	q15_t	numerator,
		q15_t	denominator,
		q15_t *	quotient,
		int16_t *	shift
	)

Parameters

[in]	numerator	Numerator
[in]	denominator	Denominator
[out]	quotient	Quotient value normalized between -1.0 and 1.0
[out]	shift	Shift left value to get the unnormalized quotient

Returns

error status

When dividing by 0, an error ARM_MATH_NANINF is returned. And the quotient is forced to the saturated negative or positive value.

arm_divide_q31()

arm_status arm_divide_q31	(	q31_t	numerator,
		q31_t	denominator,
		q31_t *	quotient,
		int16_t *	shift
	)

Parameters

[in]	numerator	Numerator
[in]	denominator	Denominator
[out]	quotient	Quotient value normalized between -1.0 and 1.0
[out]	shift	Shift left value to get the unnormalized quotient

Returns

error status

When dividing by 0, an error ARM_MATH_NANINF is returned. And the quotient is forced to the saturated negative or positive value.