Wednesday, June 19, 2013


A coprocessor may not be a general-purpose processor in its own right. Some coprocessors cannot fetch instructions from memory, execute program flow control instructions, do input/output operations, manage memory, and so on. The coprocessor require the host (main) processor to fetch the coprocessor instructions and handle all other operations aside from the coprocessor functions. In some architectures, the coprocessor is a more general-purpose computer, but carries out only a limited range of functions under the close control of a supervisory processor.

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