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

To Bean's point, you can save a lot of program memory with subroutines -- and by encapsulating "big" SX/B instructions into subroutines and functions.  PAUSE, for example, can generate a bit of code and we use it all the time so it make sense to put it into a subroutine where the actual PAUSE instruction is only compiled once.  This subroutine is in almost every one of my programs:

[code]' Use: DELAY_MS mSecs
' -- delays program in milliseconds

SUB DELAY_MS
  IF __PARAMCNT = 1 THEN
    tmpW1 = __PARAM1
  ELSE
    tmpW1 = __WPARAM12
  ENDIF
  PAUSE tmpW1
  ENDSUB[/code]

The definition line for this subroutine is:

[code]DELAY_MS        SUB     1, 2                    ' delay in milliseconds[/code]

Since I use these so much, I actually have them in external files so that I can put them into any program without copy-and-pasted.  I've attached those files for you.

Look for any SX/B instruction that it time-associated, things like PAUSE, PAUSEUS, SERIN, SEROUT, etc. -- these are all good candidates for encapsulation into a subroutine or function to reduce code space.

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