eoc

Implementation of a compiler from a subset of Typed Racket to AMD64, based on the book Essentials of Compilation by Jeremy Siek.

Requirements

• OCaml (>= 4.08)
• nasm (>= 2.15.05)
• a C99-compatible C compiler
• a POSIX-compliant shell

Additionally, the following OCaml packages are required:

• core_kernel (>= 0.14.0)
• dune (>= 2.8.0)
• menhir
• ocamlgraph (>= 2.0.0)
• ppx_compare
• ppx_hash
• ppx_let
• ppx_sexp_conv

Instructions

For building the project, run dune build. To compile a program, run ./compile <program>.rkt. To execute the compiled program, run ./output/<program>.

Target Machine

First of all, the compiler targets AMD64 (otherwise known as x86-64 to mindless plebians) and follows the System V ABI for the most part (floating-point numbers are handled in a non-standard way).

Given this, the output assembly programs should work fine on a corresponding Linux system. Other systems have not been tested, though BSD should work fine with a normal GNU toolchain. macOS systems will require some adjustments for the handling of symbol names. Windows systems follow a different ABI, so some work would be needed to ensure compatibility.

Features Implemented

• Integers, booleans, floating-point numbers
• Basic arithmetic and bitwise operations
• Let-binding
• If-then-else expressions
• Register allocation with move biasing
• Heap-allocated objects (tuples via vector) and stop-and-copy garbage collection
• Top-level functions via define
• Anonymous functions via lambda
• Loops (via while), sequencing (via begin, when, and unless), and assignment (via set!)