2. A brief history of the "restricted data stream" concept

The genesis of stream-limited processors took almost 30 years. The CDC 6600 (1965) was the first superscalar mainframe to enable the simultaneous execution of several independent instructions in the different functional units when their operands are available. This execution is controlled by the scoreboard, presented in the article [H 1 004] . Note that it also enables an embryonic version of dataflow processing...

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A brief history of the "restricted data stream" concept

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page From one instruction to several instructions per cycle

Principle of data-driven execution

Bibliography

(1) - THORNTON (J.) - Design of a Computer. - The Control Data 6600.
(2) - TOMASULO (R.M.) - An efficient algorithm for exploiting multiple arithmetic unit. - IBM Journal Research and Development, pp. 25-33 (January 1967).