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Page 466 Figure 7.33 An M pipelined processor. Table 7.5 Some types of concurrently executing processors. (N is the number of instructions checked for concurrency; M, the maximum number of instructions issued per decode cycle.) N M Restriction Result Dependency Conditions 1 1 In-order decode, in-order PA (or EX) Simple dynamic pipeline Only essential 1 1 In-order decode, out-of-order PA (or EX) Dynamic pipeline with out-of-order results All N 1 Out-of-order PA/EX, out-of-order decode Dynamic pipeline with out-of-order decode All N M Out-of-order PA/EX, out-of-order decode Windowed (superscalar) dynamic pipeline All
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