-// write_barrier.hpp
-
-inline card *factor_vm::addr_to_card(cell a)
-{
- return (card*)(((cell)(a) >> card_bits) + cards_offset);
-}
-
-inline cell factor_vm::card_to_addr(card *c)
-{
- return ((cell)c - cards_offset) << card_bits;
-}
-
-inline cell factor_vm::card_offset(card *c)
-{
- return *(c - (cell)data->cards + (cell)data->allot_markers);
-}
-
-inline card_deck *factor_vm::addr_to_deck(cell a)
-{
- return (card_deck *)(((cell)a >> deck_bits) + decks_offset);
-}
-
-inline cell factor_vm::deck_to_addr(card_deck *c)
-{
- return ((cell)c - decks_offset) << deck_bits;
-}
-
-inline card *factor_vm::deck_to_card(card_deck *d)
-{
- return (card *)((((cell)d - decks_offset) << (deck_bits - card_bits)) + cards_offset);
-}
-
-inline card *factor_vm::addr_to_allot_marker(object *a)
-{
- return (card *)(((cell)a >> card_bits) + allot_markers_offset);
-}
-
-/* the write barrier must be called any time we are potentially storing a
-pointer from an older generation to a younger one */
-inline void factor_vm::write_barrier(object *obj)
-{
- *addr_to_card((cell)obj) = card_mark_mask;
- *addr_to_deck((cell)obj) = card_mark_mask;
-}
-
-/* we need to remember the first object allocated in the card */
-inline void factor_vm::allot_barrier(object *address)
-{
- card *ptr = addr_to_allot_marker(address);
- if(*ptr == invalid_allot_marker)
- *ptr = ((cell)address & addr_card_mask);
-}
-