[enoent]

For ARM (32-bit): https://alexaltea.github.io/unicorn.js/ or https://cpulator.01xz.net/

For other architectures, it feels like a missed opportunity to not have an independent WASM build of MAME's debugger, as the whole project could already be built in WASM (although I think the latest versions were broken, as that target isn't actively maintained): https://docs.mamedev.org/initialsetup/compilingmame.html#ems...