| 摘要 |
A coprocessor ( 14 ) may be used to perform one or more specialized operations that can be off-loaded from a primary or general purpose processor ( 12 ). It is important to allow efficient communication and interfacing between the processor ( 12 ) and the coprocessor ( 14 ). In one embodiment, a coprocessor ( 14 ) generates and provides instructions ( 200, 220 ) to an instruction pipe ( 20 ) in the processor ( 12 ). Because the coprocessor ( 14 ) generated instructions are part of the standard instruction set of the processor ( 12 ), cache ( 70 ) coherency is easy to maintain. Also, circuitry ( 102 ) in coprocessor ( 14 ) may perform an operation on data while circuitry ( 106 ) in coprocessor ( 14 ) is concurrently generating processor instructions ( 200, 220 ).
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