1.4.2.80 DSP_VectorMin32 Function
Returns the minimum value of a vector.
Description
int32_t DSP_VectorMin32(int32_t *indata, int N);
Returns the lowest value of the first N elements of the vector indata. The comparison requires that all numbers be in Q31 fractional data format. N must be greater than or equal to four and a multiple of four, or it will be truncated to the nearest multiple of four.
Preconditions
The pointers outdata and indata must be aligned on 4-byte boundaries. N must be greater than or equal to four and multiple of four.
Parameters
indata pointer to input array of elements (int32_t)
N number of samples (int)
Returns
(int32_t) - minimum value within the vector, Q31 format
Remarks
None.
Example
int32_t outCheck; int Num = 4; int32_t inBufTestA[8]={0x7FFFFFFF, 0x80000000, 0x73333333, 0x66666666, 0x19999999, 0x40000000, 0x7FFFFFFF, 0xB3333334}; _// 1, -1, 0.9, 0.8, 0.2, 0.5, 1, -0.6_ outCheck = DSP_VectorMin32(inBufTestA, Num); _// outCheck = 0x80000000 // first 4 values_
C
int32_t DSP_VectorMin32 (int32_t * input , int N );