3.3.6 VectorWindow

Description

VectorWindow applies a window to a given source vector and stores the resulting windowed vector in a destination vector.

Prototype

fractional* VectorWindow (int numElems, fractional* dstV, fractional* srcV, fractional* window);

Arguments


Parameters	Description
numElems	Number of elements in the source vectors.
dstV	Pointer to the destination vector.
srcV	Pointer to the source vector.
window	Pointer to the initialized window.

Returns

Pointer to the base address of the destination vector.

Remarks

The window vector must have already been initialized, with exactly numElems number of elements.

This function can be computed in place.

This function can be self-applicable.

This function uses VectorMultiply.

Source File

Function Profile


Device	Program Words	Cycles
PIC32A	2	11

Note:

The above-mentioned program word and cycle counts pertain solely to VectorWindow. However, as this function inherently utilizes VectorMultiply, the respective counts for VectorMultiply must also be considered.
In the description of VectorMultiply, the number of cycles reported includes four cycles of C-function call overhead. Thus, the number of actual cycles from VectorMultiply to add to VectorWindow is four less than whatever number is reported for a stand-alone VectorMultiply.

System resource usage