MC_UM
new->um = MC_UM(mc_decode);
#define MC_BASE(memdec) (MC_UM(memdec) & ~(MC_UK(memdec)))
#define MC_BASE(memdec) (MC_UM(memdec) & ~(MC_UK(memdec)))
new->um = MC_UM(mc_decode);
#define MC_BASE(memdec) (MC_UM(memdec) & ~(MC_UK(memdec)))