Reality Display Processor: Difference between revisions
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{{Main|Reality Display Processor/Interface}} |
{{Main|Reality Display Processor/Interface}} |
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The RDP interface is made of several memory-mapped registers that allows the VR4300 and RSP to control the RDP. Both VR4300 and RSP are in fact able to control RDP execution by accessing the interface: VR4300 through memory mapped registers, while RSP through its COP0. |
The RDP interface is made of several memory-mapped registers that allows the VR4300 and RSP to control the RDP. Both VR4300 and RSP are in fact able to control RDP execution by accessing the interface: VR4300 through memory mapped registers, while RSP through its COP0. |
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== RDP commands == |
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{{Main|Reality Display Processor/Commands}} |
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RDP processes a display list made of commands. Most commands are 64-bit words, though some are bigger. Command lists can be sent to RDP via DMA (either from RDRAM or DMEM). |
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[[Category:Motherboard components]] |
[[Category:Motherboard components]] |
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Latest revision as of 22:24, 8 March 2024
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".
RDP interface
The RDP interface is made of several memory-mapped registers that allows the VR4300 and RSP to control the RDP. Both VR4300 and RSP are in fact able to control RDP execution by accessing the interface: VR4300 through memory mapped registers, while RSP through its COP0.
RDP commands
RDP processes a display list made of commands. Most commands are 64-bit words, though some are bigger. Command lists can be sent to RDP via DMA (either from RDRAM or DMEM).