[ros-svn] [arty] 14400: PowerPC architecture files. Few Mach function are implemented.

[arty at svn.reactos.com]

PowerPC architecture files.  Few Mach function are implemented.
The biggest things to note here:
1) We have to probe the pci bridge to find out the amount of available
memory on older macs.  We use the base model boot-time assumption that
linux uses and leave it till later to find our max memory.
2) Open firmware proxy functionality is divided in two parts.  FreeLDR
is responsible for providing data to and getting it from Open firmware
in big-endian format in memory.  The ofproxy function itself is
responsible for shifting the arguments and calling the target big endian
function.  The good thing here is that we share open firmware functions
between the xcoff part and FreeLDR.



Added files:
trunk/reactos/boot/freeldr/freeldr/arch/powerpc/
trunk/reactos/boot/freeldr/freeldr/arch/powerpc/boot.s
trunk/reactos/boot/freeldr/freeldr/arch/powerpc/mach.c