I guess you’re referring to this: https://pdos.csail.mit.edu/6.828/2011/readings/hardware/vgadoc/NCR.TXT https://pdos.csail.mit.edu/6.828/2011/readings/hardwar

I guess you’re referring to this: https://pdos.csail.mit.edu/6.828/2011/readings/hardware/vgadoc/NCR.TXT https://pdos.csail.mit.edu/6.828/2011/readings/hardware/vgad... Not much else online unfortunately