Texas Instruments TMS320C64X manual Minimum Value of Vector, DSPminval

			DSP_minval
	Minimum Value of Vector
DSP_minval
Function		short DSP_minval (const short *x, int nx)
Arguments		x [nx]	Pointer to input vector of size nx.
		nx	Length of input data vector. Must be multiple of 4 and ≥20.
		return short	Maximum value of a vector.
Description		This routine finds the minimum value of a vector and returns the value.
Algorithm		This is the C equivalent of the assembly code without restrictions. Note that
		the assembly code is hand optimized and restrictions may apply.

short DSP_minval(short x[ ], int nx)

{

int i, min; min = 32767;

for (i = 0; i < nx; i++) if (x[i] < min)

min = x[i]; return min;

}

Special Requirements nx is a multiple of 4 and greater than or equal to 20.

Implementation Notes

	- Bank Conflicts: No bank conflicts occur.
	- Interruptibility: The code is interrupt-tolerant but not interruptible.
	- The input data is loaded using double word wide loads, and the MIN2
	instruction is used to get to the minimum.
Benchmarks	Cycles	nx / 4 +10
	Codesize	116 bytes

C64x+ DSPLIB Reference 4-65