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1783 6742 d 22 h jermar /boot/trunk/ Some 32-bit vs. 64-bit fixes.

Make the call to OpenFirmware client interface architecture dependent.
For instance and contrary to my previous experience, the sparc64 version of
'translate' method would not work reliably unless the Address Mask bit in the
PSTATE register is cleared during duration of the call.

sparc64 and ppc32 OpenFirmware seem to differ in details, for example, the above
mentioned method 'translate' signals success by setting the first return value
to -1 on sparc64 while on ppc32 the value is/stays (???) zero.		  
1782 6748 d 5 h jermar /boot/trunk/ Fix ofw.c to support map and translate methods even on 64-bit platforms.  
1779 6749 d 2 h jermar /boot/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1778 6749 d 4 h jermar /boot/trunk/arch/sparc64/ sparc64 is now booted by HelenOS boot loader.  
1773 6749 d 20 h jermar /boot/trunk/arch/sparc64/loader/ Work on sparc64 boot loader (still inactive).  
1771 6749 d 23 h jermar /boot/trunk/ Cleanup OpenFirmware driver and prepare it for integration with sparc64 bootloader.
Start sparc64 boot loader (now inactive and unfunctional).		  
1764 6757 d 21 h jermar /boot/trunk/ Cleanup boot infrastructure: ppc32 (and elsewhere).  
1763 6757 d 22 h jermar /boot/trunk/ Cleanup in the boot infrastructure.
This commit tries to separate generic stuff from mips32 specific stuff.
Other architectures will follow.		  
1748 6764 d 21 h decky /boot/trunk/arch/mips32/loader/ bugfix  
1747 6764 d 21 h decky /boot/trunk/ mips32 binary format choice  
1744 6764 d 22 h decky /boot/trunk/arch/mips32/loader/ use stack in unmapped segment  
1685 6773 d 8 h decky /boot/trunk/arch/mips32/ mips piggybacker  
1018 6860 d 4 h decky /boot/trunk/ boot loader for msim