SWAP

Syntax:

    SWAP( VariableA, VariableB)

Command Availability:

Available on all microcontrollers.

Support Bytes and Words only.

Explanation:

A function that swaps (or exchanges) one byte or word for another. SWAP supports the use of byte and word variables.

Example:

    dim ByteA as Byte
    dim ByteB as Byte

    ByteA = 10
    ByteB = 20

    SWAP( ByteA, ByteB )          ' <<< the SWAP instruction

    HSerPrint ByteA
    HSerPrintCRLF
    HSerPrint ByteB
    HSerPrintCRLF

Key line: SWAP( ByteA, ByteB ) — exchanges the values held in ByteA and ByteB, so after this line ByteA holds 20 and ByteB holds 10.

See Also:

  • SWAP4 — related command in the same category
  • Using Variables — related command in the same category
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