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Emotion Engine
The Emotion Engine was a CPU developed and manufactured by Sony Computer Entertainment and Toshiba for use in the Sony PlayStation 2 video game console. It was also used in early PlayStation 3 models sold in Japan and North America (Model Numbers CECHAxx & CECHBxx), to provide PlayStation 2 game support. Mass production of the Emotion Engine began in 1999 and ended in late 2012 with the discontinuation of the PlayStation 2.
== Description ==
The Emotion Engine consists of eight separate "units", each performing a specific task, integrated onto the same die. These units are: a CPU core, two Vector Processing Units (VPU), a 10 channel DMA unit, a memory controller, and an Image Processing Unit (IPU). There are three interfaces: an input output interface to the I/O processor, a graphics interface (GIF) to the graphics synthesizer, and a memory interface to the system memory.
The CPU core is tightly coupled to the first VPU, VPU0. Together, they are responsible for executing game code and high-level modeling computations. The second VPU, VPU1, is dedicated to geometry-transformations and lighting and operates independently, parallel to the CPU core, controlled by microcode. VPU0, when not utilized, can also be used for geometry-transformations. Display lists generated are sent to the GIF, which prioritizes them before dispatching them to the Graphics Synthesizer for rendering.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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