BYTEMOVE

Owned by Brett Weir
Last updated: Oct 09, 2014 by DK Nguyen
1 min read

Command: Copy bytes from one region to another in main memory.

((PUB ┆ PRI))
  BYTEMOVE (DestAddress, SrcAddress, Count )

  • DestAddress is an expression specifying the main memory location to copy the first byte of source to.
  • SrcAddress is an expression specifying the main memory location of the first byte of source to copy.
  • Count is an expression indicating the number of bytes of the source to copy to the destination.

Explanation

BYTEMOVE is one of three commands (BYTEMOVE, WORDMOVE, and LONGMOVE) used to copy blocks of main memory from one area to another. BYTEMOVE copies Count bytes of main memory starting from SrcAddress to main memory starting at DestAddress.

Using BYTEMOVE

BYTEMOVE is a great way to copy large blocks of byte-sized memory. For example:

VAR
  byte Buff1[100]
  byte Buff2[100] 

PUB Main
  bytemove(@Buff2, @Buff1, 100)  'Copy Buff1 to Buff2

The first line of the Main method, above, copies the entire 100-byte Buff1 array to the Buff2 array. BYTEMOVE is faster at this task than a dedicated REPEAT loop.

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