flat address space การใช้
- In machines with a conventional flat address space, the creator stack and task stacks would be separate heap objects in one heap.
- Amiga OS used dynamic loading of relocatable code blocks ( " hunks " in Amiga jargon ) to multitask preemptively all processes in the same flat address space.
- DOS extender was created, which was a version of " 386 | DOS-Extender " that emulated the Win32 environment, complete with flat address space and threading.
- This is more realistic than the traditional shared memory approach of one flat address space, because hardware-specific data locality can be modeled in the partitioning of the address space.
- It can work within a private internet ( a subset of the IPv4 Internet that uses a flat address space with no NAT ), or between any two nodes on the public IPv6 Internet.
- Generally, though, such schemes are a lot of trouble, and for convenience to the programmer absolute addresses ( and underlying that, a " flat address space " ) is preferred.
- SCI defines a 64-bit flat address space ( 16 exabytes ) where 16 bits are used for identifying a node ( 65, 536 nodes ) and 48 bits for address within the node ( 256 terabytes ).
- The limited size of the LDT means the virtual flat address space has to be limited to 512 megabytes ( 8191 times 64 KiB )-this is what happens on OS / 2, although this limitation was fixed in version 4.5.
- GNU Emacs was initially targeted at computers with a 32-bit flat address space and at least 1 MiB of RAM . Such computers were high end workstations in the 1980s, and this left a need for smaller reimplementations that would run on common personal computer hardware.