PPCPMR
{"mfpmr", X(31,334), X_MASK, PPCPMR|PPCE300, 0, {RT, PMR}},
{"mfivor35", XSPR(31,339,531), XSPR_MASK, PPCPMR, 0, {RT}},
{"mtpmr", X(31,462), X_MASK, PPCPMR|PPCE300, 0, {PMR, RS}},
{"mtivor35", XSPR(31,467,531), XSPR_MASK, PPCPMR, 0, {RS}},