register addressing - перевод на русский

THE DIVISION OF COMPUTER'S PRIMARY MEMORY INTO SEGMENTS OR SECTIONS

Segmented memory; Segmented Addressing; Segmented address space; Segment register; Memory segment; Code segments; Text segments; Segmentation (memory); Segmented addressing; Segment (memory); Segment:offset addressing; Segment:offset; Segment:offset notation; Segment:offset addressing scheme; Segment:offset memory addressing

register addressing

общая лексика

регистровая адресация

способов адресации, при котором в поле операнда команде задан номер одного из регистров общего назначения (РОН), содержащего исполнительный адрес памяти. Так как регистров в процессоре обычно не так много, то в коде команды под номер регистра отводится всего 3-4 бита, что позволяет делать формат команды очень компактным. Кроме того, выборка операнда из регистра производится процессором гораздо быстрее, чем из памяти

address register

IMMEDIATELY ACCESSIBLE WORKING STORAGE AVAILABLE AS PART OF A DIGITAL PROCESSOR

CPU register; Processor registers; General purpose register; General purpose registers; Proccesor Register; Pointer register; General Purpose Register; Register width; Register (computer); Conditional register; Address register; Register (computing); Memory register; CPU registers; General-purpose register; GPR (Processor); GPR (processor); GPR (computer); GPR (Computer); General-purpose registers; SIMD register; Floating-point register; Scratch register; Working register; Vector registers; Register (CPU)

общая лексика

адресный регистр, регистр адреса

регистр процессора, содержащий полный адрес ОЗУ или часть адреса, используемую при вычислении исполнительного адреса (effective address) данных или следующей исполняемой команды

address register

IMMEDIATELY ACCESSIBLE WORKING STORAGE AVAILABLE AS PART OF A DIGITAL PROCESSOR

адресная книга

Определение

indirect address

<processor> An addressing mode found in many processors' instruction sets where the instruction contains the address of a memory location which contains the address of the operand (the "effective address") or specifies a register which contains the effective address. In the first case (indirection via memory), accessing the operand requires two memory accesses - one to fetch the effective address and another to read or write the actual operand. Register indirect addressing requires only one memory access. An indirect address may be indicated in assembly language by an operand in parentheses, e.g. in Motorola 68000 assembly MOV D0,(A0) writes the contents of register D0 to the location pointed to by the address in register A0. Indirect addressing is often combined with pre- or post- increment or decrement addressing, allowing the address of the operand to be increased or decreased by one (or some specified number) either before or after using it. (1994-11-07)

Показать больше определений

Википедия

Memory segmentation

Memory segmentation is an operating system memory management technique of division of a computer's primary memory into segments or sections. In a computer system using segmentation, a reference to a memory location includes a value that identifies a segment and an offset (memory location) within that segment. Segments or sections are also used in object files of compiled programs when they are linked together into a program image and when the image is loaded into memory.

Segments usually correspond to natural divisions of a program such as individual routines or data tables so segmentation is generally more visible to the programmer than paging alone. Segments may be created for program modules, or for classes of memory usage such as code and data segments. Certain segments may be shared between programs.

Segmentation was originally invented as a method by which system software could isolate software processes (tasks) and data they are using. It was intended to increase reliability of the systems running multiple processes simultaneously. In a x86-64 architecture it is considered legacy and most x86-64-based modern system software don't use memory segmentation. Instead they handle programs and their data by utilizing memory-paging which also serves as a way of memory protection. However most x86-64 implementations still support it for backward compatibility reasons.

https://en.wikipedia.org/wiki/Memory segmentation