Module constants

Constants used in MMTk

Modules

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

Constants

• BITS_IN_ADDRESS
  The number of bits in an address
• BITS_IN_BYTE
  The number of bits in a byte
• BITS_IN_PAGE
  The number of bits in a page
• BITS_IN_WORD
  The number of bits in a word
• BYTES_IN_ADDRESS
  The number of bytes in an address
• BYTES_IN_BYTE
  The number of bytes in a byte
• BYTES_IN_GBYTE
  The number of bytes in a gigabyte
• BYTES_IN_KBYTE
  The number of bytes in a kilobyte
• BYTES_IN_MBYTE
  The number of bytes in a megabyte
• BYTES_IN_PAGE
  The number of bytes in a page
• BYTES_IN_WORD
  The number of bytes in a word
• LAZY_SWEEP 🔒
  Lazy sweeping - controlled from here because PlanConstraints needs to tell the VM that we need to support linear scan.
• LOG_BITS_IN_ADDRESS
  log2 of the number of bits in an address
• LOG_BITS_IN_BYTE
  log2 of the number of bits in a byte
• LOG_BITS_IN_PAGE
  log2 of the number of bits in a page
• LOG_BITS_IN_WORD
  log2 of the number of bits in a word
• LOG_BYTES_IN_ADDRESS
  log2 of the number of bytes in an address
• LOG_BYTES_IN_ADDRESS_SPACE
  log2 of the number of bytes in the address space
• LOG_BYTES_IN_BYTE
  log2 of the number of bytes in a byte
• LOG_BYTES_IN_GBYTE
  log2 of the number of bytes in a gigabyte
• LOG_BYTES_IN_KBYTE
  log2 of the number of bytes in a kilobyte
• LOG_BYTES_IN_MBYTE
  log2 of the number of bytes in a megabyte
• LOG_BYTES_IN_PAGE
  log2 of the number of bytes in a page
• LOG_BYTES_IN_WORD
  log2 of the number of bytes in a word
• LOG_MIN_OBJECT_SIZE
  log2 of the minimal object size in bytes.
• MIN_OBJECT_SIZE
  The minimal object size in bytes