Transferring large blocks of data within memory as well as to and from peripherals. Direct memory access (DMA) avoids loading the CPU's register with small amounts of data from memory and storing them elsewhere in memory.
LOAD and STORE are register instructions that transfer up to 64 bits at a time, depending on the CPU size. They are also used to set up the DMA controller. Both direct memory access and LOAD/STORE functions can take place simultaneously. See
register.