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@wasm-gaming/blastem-wasm

v0.1.0

Published

BlastEm (Sega Mega Drive emulator) compiled to WebAssembly via Emscripten, with a JS SDK conforming to the wasm-gaming engine contract.

Vulnerabilities

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Links

Maintainers

jgermadejgermade

Keywords

Readme

@wasm-gaming/blastem-wasm

BlastEm (Sega Mega Drive / Genesis emulator by retrodev) compiled to WebAssembly via Emscripten, packaged as a wasm-gaming engine SDK.

This subproject follows the same engine-package approach used by jgenesis-wasm, rsdkv3, and rsdkv4:

  • typed manifest
  • typed options
  • load(config) engine SDK surface
  • Makefile-driven build (build-sdk, build-wasm, preview)

Contract surface

import { manifest, load } from '@wasm-gaming/blastem-wasm';

const engine = await load({
  canvas,
  assets: { rom: romBytes },
  onEvent: (e) => console.log(e),
});
engine.start();

Build

make build        # Full build: WASM (Docker/Emscripten) + TypeScript SDK
make build-sdk    # TypeScript only (SDK + manifest)
make build-wasm   # BlastEm WASM only (via Docker)
make preview      # Serve dist/ with COOP/COEP headers

WASM artifacts

| File | Description | |------|-------------| | blastem.js | Emscripten-generated JS loader | | blastem.wasm | Compiled BlastEm runtime |

BlastEm uses Emscripten SDL2. The JS loader expects a <canvas id="canvas"> in the DOM. ROM bytes are written to the in-memory MEMFS at /rom/game.bin before the emulator boots.