DSP_bexp
[Miscellaneous]

Collaboration diagram for DSP_bexp:

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Detailed Description

int	DSP_bexp (const int *x, short nx)

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Function Documentation

int DSP_bexp	(	const int *	x,
		short	nx
	)

The bexp function, performs a determination of the block exponent of the vector of elements and returns the maximum exponent. This information can then be used to re-normalize the vector. This operation is useful when auto-scaling is required as in a FFT. The bexp operation returns the minimum norm of the vector. The minimum norm corresponds to the maximum exponent.

Parameters:

	x	= Input data array of integers
	nx	= Number of elements in the input data

Algorithm:

DSP_bexp_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:

Arrays x and r cannot overlap.
x must be double word alligned.
nx is a multiple of 8.

Implementation notes:

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

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