72   (x->marked = cast_byte((x->marked & ~maskcolors) | luaC_white(g)))
75 #define set2gray(x)	resetbits(x->marked, maskcolors)
80   (x->marked = cast_byte((x->marked & ~WHITEBITS) | bitmask(BLACKBIT)))
200 ** objects. So, it is marked as OLD0. In the next cycle it will become
262   o->marked = luaC_white(g);  in luaC_newobjdt()
357 ** For each non-marked thread, simulates a barrier between each open
360 ** to act. The "barrier" does not need to check colors: A non-marked
374       p = &thread->twups;  /* keep marked thread with upvalues in the list */  in remarkupvals()
375     else {  /* thread is not marked or without upvalues */  in remarkupvals()
470 ** iff any object was marked during this traversal (which implies that
481   int marked = 0;  /* true if an object is marked in this traversal */  in traverseephemeron()  local
490       marked = 1;  in traverseephemeron()
500     else if (iscleared(g, gckeyN(n))) {  /* key is not marked (yet)? */  in traverseephemeron()
502       if (valiswhite(gval(n)))  /* value not marked yet? */  in traverseephemeron()
505     else if (valiswhite(gval(n))) {  /* value not marked yet? */  in traverseephemeron()
506       marked = 1;  in traverseephemeron()
519   return marked;  in traverseephemeron()
684 ** Repeat until it converges, that is, nothing new is marked. 'dir'
701       if (traverseephemeron(g, h, dir)) {  /* marked some value? */  in convergeephemerons()
817 ** objects, where a dead object is one marked with the old (non current)
830     int marked = curr->marked;  in sweeplist()  local
831     if (isdeadm(ow, marked)) {  /* is 'curr' dead? */  in sweeplist()
836       curr->marked = cast_byte((marked & ~maskgcbits) | white);  in sweeplist()
890   resetbit(o->marked, FINALIZEDBIT);  /* object is "normal" again */  in udata2finalize()
1019   if (tofinalize(o) ||                 /* obj. is already marked... */  in luaC_checkfinalizer()
1037     l_setbit(o->marked, FINALIZEDBIT);  /* mark it as such */  in luaC_checkfinalizer()
1134         int marked = curr->marked & ~maskgcbits;  /* erase GC bits */  in sweepgen()  local
1135         curr->marked = cast_byte(marked | G_SURVIVAL | white);  in sweepgen()
1157     p->marked = cast_byte((p->marked & ~maskgcbits) | white);  in whitelist()
1323 ** to ensure that all objects are correctly marked and weak tables
1543   /* at this point, all strongly accessible objects are marked. */  in atomic()
1552   /* at this point, all resurrected objects are marked. */  in atomic()
1562   return work;  /* estimate of slots marked by 'atomic' */  in atomic()
1704 ** there may be some objects marked as black, so the collector has