S_MC_WR_LIMIT
#define M_MC_WR_LIMIT _SB_MAKEMASK(4,S_MC_WR_LIMIT)
#define V_MC_WR_LIMIT(x) _SB_MAKEVALUE(x,S_MC_WR_LIMIT)
#define G_MC_WR_LIMIT(x) _SB_GETVALUE(x,S_MC_WR_LIMIT,M_MC_WR_LIMIT)