Try mine: https://github.com/robertely/SPOC-VirtualBox
It's basically a stock VM with very low memory,minimal peripherals, and a CPU priority of 1% (even at 1% it's blazingly fast compared to the 80s)
It's basically a stock VM with very low memory,minimal peripherals, and a CPU priority of 1% (even at 1% it's blazingly fast compared to the 80s)
The speed is perhaps 1/100th of what QEMU was putting out. May be related to not having correctly set up the virtualbox modules or something?
Sadly I can't explain the alt problem. I suppose I could rebind that to something like the space bar and upload a modified floppy image. I will poke at that later.