Principle of data-driven execution
Out-of-order superscalar processors
Article REF: H1011 V1
Principle of data-driven execution
Out-of-order superscalar processors

Authors : François ANCEAU, Daniel ETIEMBLE

Publication date: January 10, 2018, Review date: August 3, 2022 | Lire en français

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3. Principle of data-driven execution

3.1 Abstract syntax graph

Any logico-mathematical expression can be expressed in the form of a graph called an "abstract syntax graph", in which the nodes represent either input values or operators, and the arcs represent values transmitted from one node to another.

For example, the expression Z = (A x B) + C can be represented by the abstract syntax graph in figure 4 .

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