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Justin Ethier 2015-08-04 02:00:11 -04:00
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docs/Writing-the-Cyclone-Scheme-Compiler.md
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@ -30,6 +30,8 @@ Cyclone has a similar architecture to other modern compilers:
input file => scheme AST => IR's => C-gen => C compiler => exe or obj
An input file containing Scheme code is received on the command line and load by Cyclone's parser. The code is represented as an abstract syntax tree (AST) of a list of regular Scheme objects. From there a series of source-to-source transformations are performed on the AST to make it easier to compile to C, perform optimizations, etc. The final AST is then output as a `.c` file and the C compiler is called to create the final executable or object file.
## Source-to-Source Transformations
My primary inspiration for Cyclone was Marc Feeley's [The 90 minute Scheme to C compiler](http://churchturing.org/y/90-min-scc.pdf) (also [video](https://www.youtube.com/watch?v=TxOM9Y5YrCs) and [code](https://github.com/justinethier/nugget/tree/master/90-min-scc)). Over the course of 90 minutes, Feeley demonstrates how to compile Scheme to C code using source-to-source transformations, including closure and continuation-passing-style (CPS) conversions.