This is exactly the right path. This is the classic "bootstrap" trajectory
used by almost every major systems language (Rust started in OCaml; Go started
in C).
Building a JavaScript-based compiler for the MVP is the most pragmatic move.
JavaScript handles string manipulation and file I/O effortlessly, and
generating our fixed-width 32-bit bytecode into an Int32Array or a raw binary
file for HAUKI-X86 is trivial.
Once the VM is robust enough to handle arrays, mappings, and file I/O
reliably, writing compiler.c in LPC becomes the final milestone. When the JS
compiler successfully compiles compiler.c, the engine achieves self-hosting,
and the JS compiler can be deprecated.
Here is the architectural pipeline for the MVP JavaScript Compiler:
1. Lexing & Parsing (AST Generation)
The JS compiler reads the test.c file and tokenizes it into an Abstract
Syntax Tree (AST). By generating a clean, JSON-serializable AST at this stage,
you can easily plug it into HTML/JS AST visualization interfaces. This allows
you to visually debug how the parser interprets your LPC logic (like if
statements and for loops) before generating a single byte of machine code.
2. Semantic Analysis & Constant Pooling
The compiler walks the AST to count how many local variables are needed
(for the Shadow Stack frame) and extracts all static strings and numbers into
a Constant Pool. For example, if it finds write("Hello");, it registers
"Hello" at Constant Index 0.
3. Register Allocation & Code Generation
The compiler translates the AST nodes into our 32-bit fixed-width opcodes.
It maps local variables to memory offsets and assigns virtual registers
(R0-R7) for math and function calls. It also calculates the relative offsets
for any JMP_REL instructions used in loops.
4. Blueprint Assembly
The JS compiler packs everything into a flat binary block (the Blueprint
Record): The Header (version, variable counts), the Export VTable (function
hashes to instruction pointers), the Constant Pool, and finally, the compiled
Bytecode array. This binary block is instantly ready for the JIT to execute.
The "Hello World" Milestone
To make this MVP a reality, we need to focus on executing the smallest
possible viable program.
void main() {
write("Hello HAUKI!");
}
To compile and run this, our JS compiler and JS/x86 VM only need to understand
four things:
* The Blueprint Header Format: How the VM knows where the main() function
starts.
* Opcode: LOAD_CONST: To load the string handle for "Hello HAUKI!" into R1
(Argument 1).
* Opcode: SYSCALL: To trigger the write routine via the Interrupt Vector
Table (IVT).
* Opcode: RETURN: To safely pop the Shadow Stack and exit.
Once you have this vertical slice wwhere a JS script compiles the .c text into
an Int32Array, hands it to the VM, and the VM triggers your JS/C host
environment to print to the cyou have successfully proven the entire
architecture.onsoleorking