The 'µnOS on PPC' team proudly announces that 'Sphere', the microkernel µnOS is based upon has been ported successfully and is running (almost) completely.

Over the first ten days after the last post there has been great progress by porting the Sphere microkernel to Pegasos. This is even more important as the microkernel contains a part which wraps all the code that is directly hardware dependent. It is called 'nanokernel' and contains the whole assembler code of the microkernel, apart from driver code which (as in any solid microkernel design) is run in user space, not in the kernel. So, despite driver code, the hardware related part of this port is done.

Unfortunately, there is one little issue with the 8259A interrupt controller left. We are still waiting for tech specs or information promised by Genesi/bplan for a week now. It is not possible to continue porting and testing of the parts of µnOS based upon the Sphere microkernel without proper interrupt handling. Thus, we are stuck at this point for almost a week now but we hope to hear from Genesi soon. We first have been waiting with this news as we planned to post it when the Sphere microkernel would have been ported completely. But now we did not want to let you wait any longer, but rather share the good news about the achieved progress with you.

We are really looking forward to continue work and to keep you updated about further progress. The next step will be to get the process manager of µnOS running.