Module card_scanning

Some card scanning constants ported from Java MMTK. As we haven’t implemented card scanning, these are not used at the moment.

Constants

• CARD_MASK
• CARD_META_PAGES_PER_REGION
• LOG_CARD_BYTES
• LOG_CARD_GRAIN
  track at byte grain, save shifting
• LOG_CARD_META_BYTES
• LOG_CARD_META_PAGES
• LOG_CARD_META_SIZE
  each card consumes four bytes of metadata
• LOG_CARD_UNITS
  number of units tracked per card
• SUPPORT_CARD_SCANNING