Texas Instruments TMS320C64X manual Global maximum is then found from the list of maximums

DSP_maxidx

Implementation Notes

	- Bank Conflicts: No bank conflicts occur.
	- Interruptibility: The code is interrupt-tolerant but not interruptible.
	- The code is unrolled 16 times to enable the full bandwidth of LDDW and
	MAX2 instructions to be utilized. This splits the search into 16 sub-ranges.
	The global maximum is then found from the list of maximums of the
	sub-ranges. Then, using this offset from the sub-ranges, the global
	maximum and the index of it are found using a simple match. For common
	maximums in multiple ranges, the index will be different to the above C
	code.
	- This code requires 40 bytes of stack space for a temporary buffer.
Benchmarks	Cycles	5 * nx / 16 + 42
	Codesize	388 bytes

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