Compiler construction using scheme

The compiler starts smalland is well focused on translating the source language to assembly,and every incremental step reinforces that focus.
The interface to the compiler is defined by one Scheme procedure,compile-program, that takes as input an s-expression represent-ing a Scheme program.

In this paper, we showed that constructing a com-piler for a large subset of Scheme that targets a real hardware issimple.
The basic compiler is achieved by concentrating on the es-sential aspects of compilation and freeing the compiler from so-phisticated analysis and optimization passes.

Defining the compiler as a Scheme procedure allows us to de-velop and debug the compiler interactively by inspecting the outputassembly code.
It also allows us to utilize an automated testing fa-cility.
There are two core components of the testing infrastructure:the test-cases and the test-driver.