Skip to content

Latest commit

 

History

History
38 lines (25 loc) · 951 Bytes

CopyMem.md

File metadata and controls

38 lines (25 loc) · 951 Bytes
Raw

NAME

CopyMem - general purpose memory copy function

SYNOPSIS

    CopyMem( source, dest, size )
             A0      A1    D0

    void CopyMem(APTR,APTR,ULONG);

FUNCTION

CopyMem is a general purpose, fast memory copy function. It can deal with arbitrary lengths, with its pointers on arbitrary alignments. It attempts to optimize larger copies with more efficient copies, it uses byte copies for small moves, parts of larger copies, or the entire copy if the source and destination are misaligned with respect to each other.

Arbitrary overlapping copies are not supported.

The internal implementation of this function will change from system to system, and may be implemented via hardware DMA.

INPUTS

source - a pointer to the source data region dest - a pointer to the destination data region size - the size (in bytes) of the memory area. Zero copies zero bytes

SEE ALSO

CopyMemQuick