The Project

MICA is a compiled programming language designed for AI workloads. It combines Pascal’s clarity and readability with C-level performance — without a garbage collector, without an interpreter, without external dependencies.

The compiler is written entirely in Go (~45,000 lines) and generates native x86_64 assembly. The entire toolchain — lexer, parser, semantic analyzer, code generator — was built from scratch by a single developer over 2.5 years.

Design Philosophy

Explicit over implicit. You see what the code does. No hidden allocations, no magic constructors, no invisible runtime.

Compile-time safety over runtime checks. Catch errors in seconds, not after hours of debugging.

Pascal’s readability, C’s performance. Clean syntax with begin/end blocks, strong typing, and nested procedures — but compiling to native code with zero-overhead C interoperability.

Technical Overview

ParadigmStatically typed, compiled, procedural
Type SystemStrong with type inference
StringsUTF-8 and UTF-32 support
Nested FunctionsFull lexical scoping with static links
C InteropZero-overhead, direct ABI compatibility
Targetx86_64 Linux (System V AMD64 ABI)
DebuggingDWARF v5, GDB, VS Code
Compiler Size~45,000 lines of Go, zero external dependencies

The Author

I’m Michael, a software engineer with 30+ years of experience in IT. I built my first Pascal compiler as a student in the early 1990s, based on ETH Zürich’s PascalS. Three decades later, I returned to compiler construction — and built MICA.

This blog documents the technical journey: design decisions, trade-offs, and the reality of building a compiler from the ground up. If you’re interested in the full story of how this project came to be, read The Mica Story.

Resources

Contact

If you’re working on compiler construction, programming language design, or AI infrastructure and want to discuss ideas — I’d welcome the conversation. Reach me at (your email or preferred contact method).

Company

MICA is developed by Mica Development UG, based in Germany.