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Original Power Mac G4 Developer Note
Mac OS ROM Image File
The Mac OS ROM image file (also called the bootinfo file) is named Mac OS ROM. It includes
a Mac OS Loader program
a compressed Mac OS ROM image including
68K Macintosh Toolbox code and data resources
PowerPC shared libraries
Nanokernel, the Mac OS 9 kernel
68LC040 Emulator
The Nanokernel and the 68LC040 Emulator are low-level Mac OS initialization components that were part of BootPowerPC code in previous CPU ROMs. They are now included in the Mac OS ROM image.
Complementarily, CPU-specific hardware initialization code has been relocated into the boot ROM as described in the previous section.
© 2000 Apple Computer, Inc. (Last Updated 13 Jan 00)