Segmentation is one of the most common ways to achieve memory protection; another common one is paging. Segmentation means that a part or parts of the memory will be sealed off from the currently running process, through the use of hardware registers. If the data that is about to be read or written to is outside the permitted address space of that process, a segmentation fault will result. Memory protection is a system that prevents one process from corrupting the memory of another process running on the same computer at the same time. ... In computer operating systems, paging memory allocation algorithms divide computer memory into small partitions, and allocates memory using a page as the smallest building block. ... Look up Process in Wiktionary, the free dictionary Process (lat. ... In computing, a hardware register is a storage area for hardware I/O (input/output) of different kinds. ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... A viano segmentation fault (sometimes referred to as segfault for short) is a particular error condition that can occur during the operation of computer software. ...
This usage should not be confused with that of the memory segments used by early x86 processor architectures. On the Intel x86 architecture, a memory segment is the portion of memory which may be addressed by a single index register without changing a 16-bit segment selector. ... x86 or 80x86 is the generic name of a microprocessor architecture first developed and manufactured by Intel. ...
For details of x86's implementation of segmentation in both 16-bit and 32-bit mode, please see the article on memory segments. x86 or 80x86 is the generic name of a microprocessor architecture first developed and manufactured by Intel. ... On the Intel x86 architecture, a memory segment is the portion of memory which may be addressed by a single index register without changing a 16-bit segment selector. ...
Feeds |
Contact