power processor element wikipedia - EAS
- The Power Processing Element ( PPE) comprises a Power Processing Unit ( PPU) and a 512 KB L2 cache. In most instances the PPU is used in a PPE.en.wikipedia.org/wiki/Power_Processing_Element
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The Power Processing Element (PPE) comprises a Power Processing Unit (PPU) and a 512 KB L2 cache. In most instances the PPU is used in a PPE. The PPU is a 64-bit dual-threaded in-order PowerPC 2.02 microprocessor core designed by IBM for use primarily in the game consoles PlayStation 3 and
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See more• 64-bit, dual-threaded core
• 3.2 GHz typical clockrate
• 32 KB L1 instruction cache
• 32 KB L1 data cache...
See moreThe PPU is an in-order processor, but it has some unique traits which allow it to achieve some benefits of out-of-order execution without expensive re-ordering hardware. Upon reaching an L1 cache miss - it can execute past the cache miss, stopping only when an
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See moreIts 64-bit double precision floating-point unit, and 128-bit VMX unit (using the AltiVec instruction set), can perform a theoretical 12 floating-point operations per cycle, as its floating-point unit can
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See more• Branch Unit (BRU)
• Fixed Point Integer Unit (FXU)
• Load and Store Unit (LSU)
• Floating-Point Unit (FPU)...
See moreThe PPE has a 23 stage general pipeline with an additional 11 stages possible for Microcode and an additional 4 stages possible for Branch Prediction.
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See moreThe PPU runs two hardware threads simultaneously. The main registers for code execution are duplicated, as are the exception and interrupt-handling registers, and several essential arrays and queues. They can generate exceptions simultaneously, and
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