[OpenBIOS] setting the reg property of the mac-io node

[Programmingkid]

I am trying to set the reg property of the mac-io node so it matches the properties of a real Beige G3 computer. Does anyone know the file that this information is kept in? Mac OS X is very sensitive to the value of properties in Open Firmware. One wrong value is enough to stop Mac OS X from booting. Since OpenBIOS has a ton of missing and different values for properties with respect to the Beige G3, I theorized that this might be the reason why OpenBIOS can't make Mac OS X run. Any help with locating the reg property for the mac-io node would be great.