ASI_DCU
ldxa [%g0]ASI_DCU, %g1; \
stxa %g2, [%g0]ASI_DCU; \
ldxa [%g0]ASI_DCU, scr1; \
ldxa [%g0]ASI_DCU, tmp2; \
stxa tmp1, [%g0]ASI_DCU; \
stxa tmp2, [%g0]ASI_DCU; \