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Inside Macintosh: Memory /

Chapter 3 - Virtual Memory Manager / Virtual Memory Manager Reference

Data Structures

Memory-Block Record

The GetPhysical function uses a memory-block record to hold information about a block of memory, either logical or physical. The memory-block record is a data structure of type MemoryBlock.

TYPE MemoryBlock =
RECORD
   address:    Ptr;              {start of block}
   count:      LongInt;          {size of block}
END;

Field Description

address

A pointer to the beginning of a block of memory.

count

The number of bytes in the block of memory.