PR_SLR
ka6400_txrx(id, "D/I D %x\r", mfpr(PR_SLR)); /* SLR */
ka820_txrx(id, "D/I D %x\r", mfpr(PR_SLR)); /* SLR */
ka88_txrx(id, "D/I D %x\r", mfpr(PR_SLR)); /* SLR */
if (((end & 0x3fffffff) >> VAX_PGSHIFT) > mfpr(PR_SLR))
mtpr(sysptsize, PR_SLR);
rpb.slr = mfpr(PR_SLR);
nipqb->np_sptlen = nipqb->np_gptlen = mfpr(PR_SLR);