DSP_dotp_sqr
[Math]

Collaboration diagram for DSP_dotp_sqr:

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Detailed Description

int	DSP_dotp_sqr (int G, const short *x, const short *y, int *restrict r, int nx)

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Function Documentation

int DSP_dotp_sqr	(	int	G,
		const short *	x,
		const short *	y,
		int *restrict	r,
		int	nx
	)

This routine performs an nx element dot product of x[ ] and y[ ] and stores it in r. It also squares each element of y[ ] and accumulates it in G. This computation of G is used in the VSELP coder.

Parameters:

	G	= Calculated value of G (used in the VSELP coder)
	x	= First vector array
	y	= Second vector array
	r	= Result of vector dot product of x and y
	nx	= Number of elements

Algorithm:

DSP_dotp_sqr_cn.c is the natural C equivalent of the optimized intrinsic C code without restrictions note that the intrinsic C code is optimized and restrictions may apply.

Assumptions:

nx must be a multiple of 4 and greater than or equal to 12.

Implementation notes:

Endian Support: The code supports both big and little endian modes.
Interruptibility: The code is interruptible.

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