I'm referring to virtual 8086 mode enhancements. They're broken on Ryzen 1- and 2-series chips, AMD responded to my bug report saying they had no intention of f

I'm referring to virtual 8086 mode enhancements. They're broken on Ryzen 1- and 2-series chips, AMD responded to my bug report saying they had no intention of fixing them in microcode updates. You wouldn't notice this unless you tried to run older OSes in a VM, like DOS-based Windows, or some applications in DOSBox.