Swap

Swaps SRAM-Variables and Array-Elements. Use the command to swap two different Variables or the Low/High-Values of a Variable.

Syntax 1: - swaps Low/High-Values dependent on Data-Type

• Swap Variable

Syntax 2: - swaps 2 Variables

• Swap Variable1, Variable2

Example for Syntax 1:

  dim a as byte
  dim b as word
  dim c as long
 
  a=&hab
  b=&haabb
  c=&haabbccdd
  print "a = 0x";hex(a)  ' output: "a = 0xAB"
  print "b = 0x";hex(b)  ' output: "a = 0xAABB"
  print "c = 0x";hex(c)  ' output: "a = 0xAABBCCDD"
 
  swap a  ' swaps Low/High-Nibble
  swap b  ' swaps Low/High-Byte
  swap c  ' swaps Low/High-Word
 
  print "a = 0x";hex(a)  ' output: "a = 0xBA"
  print "b = 0x";hex(b)  ' output: "a = 0xBBAA"
  print "c = 0x";hex(c)  ' output: "a = 0xCCDDAABB"

Example for Syntax 2:

  dim a,b,v(4) as byte
  dim c,d as word
 
  a=1
  b=2
  c=3
  d=4
  ' swap Variables
  swap a,b       ' swaps values of a and b
  swap c,d       ' swaps values of c and d
  swap v(2),v(4) ' swaps values of array elements 3 and 5