information found by g3gg0 (See this thread and Register Map)
in 600d 1.0.1
FF075CB8 ; int __cdecl dma_memcpy(unsigned __int8 *dest, unsigned __int8 *src, int length, void *callback)
in 550d 1.0.8 and 1.0.9 = FF06EB08 (AJ_HPC_DMA_n_BLTDMA)
in 60d 1.1.0 = FF072E48
in 500d 1.1.1 = FF06E2D8
look for "HPCopy", "BLTDMA" and "[HPC" strings