memory segmentation

The memory segmentation used by early x86 processors, beginning with the Intel 8086, does not provide any protection.

The Alpha has a 64-bit linear virtual address space with no memory segmentation.

Memory segmentation is the division of computer's primary memory into segments or sections.

Various methods of memory protection exist, including memory segmentation and paging.

Memory segmentation is one method of implementing memory protection.

Linux e.g. uses a flat memory model, see x86 memory segmentation.

Architectures that survived evolved over time to support larger virtual address spaces using memory segmentation or other mechanisms.

Utilizing memory segmentation, there are different ways to calculate the register values, e.g.:

SPIN also allows users to avoid significant memory segmentation issues that must be considered for assembly code.

The main advantage of paging over memory segmentation is that it allows the physical address space of a process to be noncontiguous.

In this case, a more complex scheme such as memory segmentation or paging is employed to use different parts of the memory at different times.

It had a small but powerful command set, and, like all Motorola CPUs, did not use memory segmentation.

Most object file formats are structured as blocks of data, each block containing a certain type of data (see Memory segmentation).

It was programmed in the C programming language, with nonportable QNX extensions for 8086/80286 memory segmentation.

The 8086 and successors had an innovative but limited method of memory segmentation, while the 80286 introduced a full-featured segmented memory management unit (MMU).

A significant architectural difference between the INtime RTOS and all other iRMX variants is the support for address segments (see x86 memory segmentation).

This approach has been unpopular, presumably due to the requirement of a far call which uses x86 memory segmentation and the resulting lack of portability it causes, and existence of the faster instructions mentioned above.

The THE system apparently introduced the first forms of software-based memory segmentation (the Electrologica X8 did not support hardware-based memory management), freeing programmers from being forced to use actual physical locations on the drum memory.

In protected mode, the segment selector can be broken down into three parts: a 13-bit index, a Table Indicator bit that determines whether the entry is in the GDT or LDT and a 2-bit Requested Privilege Level; see x86 memory segmentation.

Flat memory model or linear memory model refers to a memory addressing paradigm in low-level software design such that the CPU can directly (and sequentially/linearly) address all of the available memory locations without having to resort to any sort of memory segmentation or paging schemes.