Most of the important addresses are listed in the irix headers. With enough hardware and knowledge you can infer how those addresses are used, and I belive he also decompiled the o2's irix kernel. Nick On Wed, 23 May 2001 joshua@babbage.millersv.edu wrote: > The other day on irc.openprojects.net #mipslinux, someone said that the > initial O2 port was done using the irix header files to glean enough > hardware info to make the needed changes. How would this process > work? Could someone post examples of how parts of the header files > indicate how to get something else to boot on the hardware? > >