Architecture

• Pixel Shader ALU. Contains a flow diagram showing what happens to register data as it is processed by the pixel shader processor.
• Pixel Shader Texture Addressing. Contains block diagrams to help visualize how texture data is used by the pixel shader processor.
• Counting Instructions. Details the limits on the number of instructions that can be used in a programmable shader.
• Instruction Flow. Highlights the order of the different types of instructions in pixel shaders.
• Instruction Pairing. Describes how some instructions can be paired to minimize execution time.
• Order of Operations. Shows the order or operations for instructions that use Register Modifiers, Source Register Selectors, and Register Write Masks.