[OpenBIOS] patch to allow Mac OS 9 to boot

[BALATON Zoltan]

On Fri, 5 Feb 2016, Mark Cave-Ayland wrote:
> The Apple 9.2 bootloader ignores the Forth specification in this respect
> and includes direct r-stack commands and hence the return address is
> corrupted once they have executed (for fun, try typing r-stack commands
> directly into the OpenBIOS command line).
>
> So the solution is to find some way to preserve the r-stack in this
> context to ensure that execution continues back at the right location.

How does this work on Apple's OF implementation? How is that different 
from OpenBIOS?

Regards,
BALATON Zoltan