Comment by andai
10 hours ago
Very cool. If it's built on SDL2, it should be straightforward to make it run in the browser via Emscripten, right?
10 hours ago
Very cool. If it's built on SDL2, it should be straightforward to make it run in the browser via Emscripten, right?
Advanced Mac Substitute uses a factored approach. 68K emulation happens in the back end, which is a collection of processes connected by Unix-domain sockets, portable to basically any POSIX system.
The front end deals with displaying graphics and forwarding user input to the back end. Working front ends include SDL2 (by a contributor), X11, Linux fbdev, VNC, and five different macOS APIs (Cocoa/OpenGL, CGL, AGL, Quartz, and QuickDraw).
The front and back ends communicate using FIFOs and shared memory. I'm aware that certain platforms will require refactoring all of this to run in a single process. If Emscripten is one of them, then it won't be as simple as you suggest.
In any case, if I were the one doing the port, I might write a bare-bones front end just for this purpose, possibly using the fbdev one as a starting point.