A behavioral memory mechanism for performing address mappings within a data
processing system is disclosed. The data processing system includes a
processor, a real memory, a address converter, and an address translator.
The real memory has multiple real address locations, and each of the real
address locations is associated with a corresponding one of many virtual
address locations. The virtual address locations are divided into two
non-overlapping regions, namely, an architecturally visible virtual memory
region and a behavioral virtual memory region. The address converter
converts an effective address to an architecturally visible virtual
address and a behavioral virtual address. The architecturally visible
virtual address is utilized to access the architecturally visible virtual
memory region of the virtual memory and the behavioral virtual address is
utilized to access the behavioral virtual memory region of the virtual
memory. The address translator translates the architecturally visible
virtual address to a first real address associated with the real memory,
and the behavioral virtual address to a second real address associated
with the real memory.
