FunTAL: reasonably mixing a functional language with assembly

Daniel Patterson, Jamie Perconti, Christos Dimoulas, Amal Ahmed
2017 SIGPLAN notices  
We present FunTAL, the first multi-language system to formalize safe interoperability between a high-level functional language and low-level assembly code while supporting compositional reasoning about the mix. A central challenge in developing such a multi-language is bridging the gap between assembly, which is staged into jumps to continuations, and high-level code, where subterms return a result. We present a compositional stack-based typed assembly language that supports components,
more » ... d of one or more basic blocks, that may be embedded in high-level contexts. We also present a logical relation for FunTAL that supports reasoning about equivalence of high-level components and their assembly replacements, mixed-language programs with callbacks between languages, and assembly components comprised of different numbers of basic blocks.
doi:10.1145/3140587.3062347 fatcat:p37aqhzmund27fo3wo463mmqq4