sv_direct_get
n = sv_direct_get(sc, reg);
v = sv_direct_get(sc, SV_CM_CONTROL) & ~SV_CM_CONTROL_ENHANCED;
v = sv_direct_get(sc, SV_CM_CONTROL) & ~SV_CM_CONTROL_RESET;
v = sv_direct_get(sc, SV_CM_CONTROL);
v = sv_direct_get(sc, SV_CM_IMR);
status = sv_direct_get(sc, SV_CM_STATUS);