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

Since delays are often needed and PAUSE and PAUSEUS take up a bit of code every time thery're used, I tend to have these subroutines in most of my SX/B programs...

The declarations:

WAIT_US  SUB 1, 2   ' delay in microseconds
WAIT_MS  SUB 1, 2   ' delay in milliseconds

And the code:

' Use: WAIT_US microseconds {, multiplier}
' -- multiplier is optional

WAIT_US:
  temp1 = __PARAM1    ' get microseconds
  IF __PARAMCNT = 1 THEN   ' if no multiplier
    temp2 = 1     '   set to 1
  ELSE      ' else
    temp2 = __PARAM2    '   get multiplier
  ENDIF
  IF temp1 > 0 THEN    ' no delay if either 0
    IF temp2 > 0 THEN
      PAUSEUS temp1 * temp2   ' do the delay
    ENDIF
  ENDIF
  RETURN

' Use: WAIT_MS milliseconds {, multiplier}
' -- multiplier is optional

WAIT_MS:
  temp1 = __PARAM1    ' get milliseconds
  IF __PARAMCNT = 1 THEN   ' if no multiplier
    temp2 = 1     '   set to 1
  ELSE      ' else
    temp2 = __PARAM2    '   get multiplier
  ENDIF
  IF temp1 > 0 THEN    ' no delay if either 0
    IF temp2 > 0 THEN
      PAUSE temp1 * temp2   ' do the delay
    ENDIF
  ENDIF
  RETURN

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