Reality Coprocessor: Difference between revisions

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Revision as of 06:20, 5 August 2020 (view source) Command-tab (talk \| contribs) m (Command-tab moved page RCP to Reality Coprocessor) ← Older edit		Latest revision as of 19:53, 7 April 2023 (view source) Jeffythedragonslayer (talk \| contribs) (location from seen above mentioned) Tags: Mobile edit Mobile web edit Visual edit
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Line 1: [[File:N64 RCP Decapped.jpg\|alt=N64 RCP Decapped\|thumb\|'''N64 RCP Decapped''']] The '''Reality Coprocessor''', or '''RCP''', is one of the ~~other~~two ~~major~~main ~~processor~~processors on the Nintendo 64 board. Split into two ~~major~~ components, the [[~~RSP~~Reality Signal Processor]] and [[~~RDP~~Reality Display Processor]], it cooperates with the other main processor, the [[~~MIPS R4300~~VR4300\|~~MIPS R4300~~VR4300 CPU]] to draw 3D graphics, perform matrix calculations, and produce audio. The RCP is also connected to the onboard RDRAM, providing direct access to memory. It is located underneath the control deck shell's ventilation slots that are in front of the cartridge slot. == RCP Interface == {{Main\|RCP Interface}}RCP is the core component of the N64 architecture. It is connected to all other peripherals (VR4300, ROM, RDRAM), and handles communications in all directions. For instance, VR4300 must go through RCP to access RDRAM. RCP is thus in charge of implementing the [[Memory map\|full VR300 Memory Map]]. Please check [[MIPS R4300 interface\|VR4300 interface]] for a detailed description of the bus between the CPU and the RCP at the electric level. == RSP == {{Main\|Reality Signal Processor}} The '''Reality Signal Processor''', or '''RSP''', is the portion of the RCP responsible for matrix math, lighting calculations, clipping, shading, and other highly parallel graphics tasks as well as audio processing. It is a programmable MIPS processor with a custom set of SIMD instructions for vectorized fixed point operations (exposed as COP2 -- a group of reserved instructions in the standard MIPS instruction set). The RSP is also able to directly drive the RDP (the hardware rasterizer) by accessing its registers, so that it can terminate the graphic pipeline by telling the RDP to draw triangles into the framebuffer. == RDP == {{Main\|Reality Display Processor}} Some kind of short summary paragraph should go here..