2024年9月16日 · The Reality Coprocessor, or RCP, is one of the two main processors on the Nintendo 64 board. Split into two components, the Reality Signal Processor and Reality Display Processor, it cooperates with the other main processor, the VR4300 CPU to draw 3D graphics, perform matrix calculations, and produce audio.

2025年3月1日 · The N64 Reality Signal Processor (RSP) is the part of the Reality Co-Processor (RCP) that deals with data transform. It is a MIPS-based cpu like the main R4300 cpu but it also contains additional 8-bit vector opcodes.

This document describes the graphics state machine of the RCP, with a particular focus on the RSP (please see Section 3.3, "RSP: Reality Signal Processor”). The RSP is an R4000-like CPU with an 8-element vector unit, featuring a small instruction memory, IMEM (4K bytes or 1K instructions) and small data memory, DMEM (4K bytes).

The Reality Signal Processor (RSP) is the microcode engine that executes audio and graphics tasks. The Reality Display Processor (RDP) is the graphics display pipeline that renders into the frame buffer.

2024年3月8日 · The Reality Display Processor, or RDP, is the portion of the RCP responsible for graphics tasks such as Z-buffering, texturing, blending, anti-aliasing, etc. It contains 4KB of texture memory (TMEM,) and is sent commands called "primitives".

2019年11月20日 · The N64 Reality Display Processor (RDP) is used to render the Nintendo 64’s game polygons into 2D pixels that it stores in the FrameBuffer ready to be displayed on the screen 1.

The N64's Reality Co-Processor (RCP) is a microcode-reprogrammable GPU, containing two integrated processors known as the Reality Signal Processor (RSP) and the Reality Display Processor (RDP). The RSP is reprogrammable, allowing developers to add extra/custom functionality to the Co-processor.

2020年5月3日 · The N64 Reality Signal Processor (RSP) is the part of the Reality Co-Processor that deals with data transform. It is a MIPS-based cpu like the main R4000 cpu but it also contains additional 8-bit vector opcodes 1.

2018年11月24日 · The CPU controls the RCP through DMA (to transfer the code) and SP_STATUS (to start and stop it), and communicates with the CPU through the RSP's COP0 instructions. The RCP controls essentially all peripheral access on the Nintendo 64 which includes, but is not limited to: video, audio and serial.

The RCP has two processors (RSP and RDP) and I/O interfaces (VI, AI, PI, and SI). The RCP is the most important component of the N64 hardware system as shown in the following illustration. All data passes through the RCP, and the RCP serves as a memory controller for the CPU.