OpenFirmware was the firmware bootloader for PowerPC macs. I've recently discovered the open source Slimline Open Firmware (SLOF): Initialization and boot source code based on the IEEE-1275 (Open Firmware) Standard at http://www.ibm.com/developerworks/power/pa-slof/ It is a simplified implemementation of the previous Apple (and SUN) firmware.
If EFI (with the Apple Update) utilizes a (PC) BIOS extension, perhaps an OpenFirmware extension can also be created for EFI?
This might have a few uses- Booting from PPC versions of Mac OSX disks- either from external drives cloned or transplanted from older Macs, or old OSX Install discs. If you've lost or broken the Intel Mac DVD, and have one (or like me: many) PPC utility or Install discs.
Knowledge of Forth would probably be helpful (I don't know forth) Could be helpful for creating a (more complete) PPC mac emulator on Intel machines? Maybe just a good project for Forth hackers? http://www-128.ibm.com/developerworks/power/library/pa-expert5/?ca=dgr-lnxw09SLOFExpert
Log in to post a comment.