K 10 svn:author V 10 nwhitehorn K 8 svn:date V 27 2011-06-22T04:11:27.799983Z K 7 svn:log V 220 Free up SPRG1 any time the MMU is enabled. This allows it to be used as a scratch register handling kernel SLB faults, and will eliminate the need (once a special fault handler is written) to lock in kernel SLB entries. END