POWERPC_BUS_TAG_BASE
if (POWERPC_BUS_TAG_BASE(t) == 0)
if (bpa < POWERPC_BUS_TAG_BASE(t))
bpa += POWERPC_BUS_TAG_BASE(t);
if (POWERPC_BUS_TAG_BASE(t) == 0) {
if (bpa < POWERPC_BUS_TAG_BASE(t))
bpa += POWERPC_BUS_TAG_BASE(t);