No source code here, this is just where I store the RU.EFI and RU.EXE binary files.
They are all encrypted, please find password on my blog page. http://ruexe.blogspot.com/
RU.EXE was created on 1993 when I started working on BIOS. Later on I migrated it to RU.EFI for UEFI. I wrote this tool for my own debugging purpose. I did not pay too much effort on debugging RU so it could be very buggy.
Hope this tool helps!