JS-ARM

Building a JS Compiler for ARM. Fully Book: Compiling to Assembly from Scratch

Requirements

• TypeScript pipeline, e.g. npm/npx
• Arm Assembler: arm-linux-gnuabihf-gcc
• qemu-user (if you don't have an ARM cpu)

Pipeline

To test the full pipeline, given all needed tools are installed, do the following:

$ npx tsc #transpile TS to JS
$ node index.js >test.s # Compile the "source code" defined inside index.ts
$ arm-linux-gnueabihf-gcc -static test.s -o test # Assemble
$ ./test # execute, if not working, use the following:
$ qemu-arm ./test # execute

The Language

The language is a very (very!) simple subset of JS. No globals, no for, etc...