OpenComputer is here! OpenComputer is a new computer emulator that is on TurboWarp and has 2M (10 200K (200,000 B (item)) banks) of RAM, 1M of VRAM, and an unused 6M of storage (30 200K banks). It also uses its own subset of MIPS (in the CPU) called OpenComputer MIPS, and OpenComputer is under the BSD 2-Clause license, so feel free to remix OpenComputer and either fix the bugs yourself or use it in your own project! You can also change out or add units (that are sprites and act as virtual computer parts) in OpenComputer too.
Use OpenComputer at https://turbowarp.org/?project_url=https://raw.githubusercontent.com/PearComputer/pastaOS-Resources/main/OpenComputer.sb3 . It will boot up to a machine code shell called the OpenComputer Machine Code Shell as the default OS in the "os" sprite, but when the display isn't initialized, it will say "Guest has not initialized the display (yet)." (just like QEMU).