In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote:

I have heard that using SHIFTOUT should be done via subroutines and used somewhat spareingly. However, if another subroutine was written to perform a similar task as the SHIFTOUT command but it was somewhat long, how does one know whether to use a command or re-write a subroutine or function that may be faster, smaller, etc? Is there anyway of measureing this (speedwise) or program size wise in some sort of metrics?
 

I'm just trying to determine if there is a rule of thumb to follow here on using what is available or spending the effort to re-invent the wheel in "hope" that it might be some sort of savings in speed, program size, etc.

 

Thoughts...comments?

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