To improve embedded multimedia application performance and reduce power consumption

an efficient method of exploiting scratchpad memory is proposed.Big data array are divided in small tiles and copied to on-chip memory by stages.Data in scratchpad memory should be reused as much as possible to reduce data transfer between off-chip memory and scratchpad memory. Memory access delay can be avoided by proper assignment of memory operand in assemble instructions.Some operand memory constraint conditions can be listed out to minimize pipeline stall.A method of array assignment is proposed in these conditions.