6.4.13 SquareMagnitudeComplex
Description
SquareMagnitudeCplx computes the squared magnitude of each element in a complex source vector.
Prototype
fractional* SquareMagnitudeCplx (numElems, fractcomplex* srcV, fractional* dstV);
Arguments
|
Parameters |
Description |
|---|---|
|
numElems |
Number of complex elements in the source vector |
|
srcV |
Pointer to the fractcomplex source vector |
|
dstV |
Pointer to the fractional destination vector |
Return
Pointer to the base address of the destination sample.
Remarks
If the sum of squares of the real and imaginary parts of a complex element in the source vector is larger than the max value of supported fractional data (1 - 2-31), this operation results in saturation.
This function can be used to operate in-place on a source data set.
Source File
- cplxsqrmag_aa.s
Function Profile
|
PIC32A | |
|
Program Words |
15 |
|
Cycle Count |
34 + 3.5(numElems) |
System resource usage
- W0…W4 - used, not restored
- W13 - saved, used, restored
- ACCA/ACCB - used, not restored
- REPEAT instruction usage – None