h6. [[CDFSDriver]] h6(. » [[CDFSDriver SWI Calls|SWI Calls]] h6((. » CD_ByteCopy h2. CD_ByteCopy h5. (SWI &41262) |_<^{width:4em}. Entry | | |<^. R1 |<^. Pointer to source | |<^. R2 |<^. Pointer to destination | |<^. R3 |<^. Number of bytes to copy | |_<^{width:4em}. Exit | | |<^. R1 |<^. Preserved | |<^. R2 |<^. Preserved | |<^. R3 |<^. Preserved | h4. Use The original purpose of this call was to provide a fast memory copy routine, providing efficient way of copying any number of bytes, word-aligned or not. h4. Notes It is recommended that you do not use this, as the overhead for calling the SWI is probably greater than any possible gain.