Implementation of an Abstract Machine Three options: Implementation in hardware ‣ Build custom hardware for a language Simulation using software ‣ Write an interpreter Emulation using firmware

Now the machine simply has to evaluate a numeric literal. Seeing as no further evaluation need take place (the value associated with the expression can be inferred without further work), the machine …

We describe a derivational approach to abstract interpretation that yields novel and transparently sound static analyses when applied to well-established abstract machines.

1.1.2 An Example of an Abstract Machine: The Hardware Machine From what has been said so far, it should be clear that the concept of abstract ma-chine can be used to describe a variety of different …

Abstract Machines What is an abstract machine? a set of legal states ‣ final and initial states as subset A set of instructions altering the state of the machine ‣ it should be possible to implement the …

In this section we expand the reduction semantics above to form an abstract machine. This machine implements the deterministic search for a context-redex pair that can be reduced.

The kind of abstract machine we present here is a variant of the C-machine [Ch. 11.1] with two kinds of states: those that attempt to evaluate an expression, and those that return a value that has been …