Reality Signal Processor
The RSP is a vector processor designed for high performance 3D calculations. It handles the some audio and most video pre-processing of the Nintendo 64 and can perform very well in operations such as: real-time edge anti-aliasing, high frame-rate on complex images, automatic load-management, advanced texture mapping, real-time depth buffering, etc. The RSP has access to 4KB of DMEM (Data Memory) and executes instructions contained within its 4KB of IMEM (Instruction Memory), allowing 1024 instructions to be stored at any given time. These instructions are collectively referred to as microcode. Microcode may be designed to perform specific tasks, such as lighting calculations, or RDP display list processing for example. The RSP is able to efficiently transfer data to and from main memory and DMEM/IMEM using DMA.
Read more about this topic: RCP (chip)
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