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In a computer, the memory address register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU registers, or the address to which data will be sent and stored via system bus. The MAR register is half of a minimal interface between a microprogram and computer storage; the other half is a MDR. In general, MAR is a parallel load register that contains the next memory address to be manipulated, for example the next address to be read or written.

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  • مسجِّل عنوان الذاكرة (MAR) في الكمبيوتر، هو المسجِّل لوحدة المعالجة المركزية (CPU) الذي إما أن يخزن عنوان الذاكرة الذي يتم جلب البيانات منه إلى CPU, أو العنوان الذي سيتم إرسال البيانات اليه وتخزينها. (ar)
  • Das Speicheradressregister (SAR) ist ein wichtiges Register eines Hauptprozessors in einem Von-Neumann-Rechner. Zusammen mit dem Speicherdatenregister (SDR) dient es als schneller Zwischenspeicher und verringert die negativen Auswirkungen des Von-Neumann-Flaschenhalses. Die meisten Von-Neumann-Rechner sind intern als Harvard-Architekturen implementiert, weshalb zwischen Daten- und Adressbus unterschieden wird. Bei vielen Systemen haben beide Busse eine unterschiedliche Breite. Das Speicheradressregister (Abkürzung SAR, englische Abkürzung MAR von memory address register) enthält die Adresse des Speicherwortes, das als nächstes gelesen oder geschrieben werden soll. Daher ist dieses Register so breit wie die Adresslänge. (de)
  • Dans un ordinateur, le Registre d'Adresse Mémoire (RAM) (Speicheradressregister en allemand ou Memory Address Register en anglais) est un registre qui contient l'adresse mémoire depuis laquelle ou vers laquelle une donnée est lue ou écrite par le processeur. En d'autre mots, RAM contient la position en mémoire de la donnée qui doit être accédée. En lecture, la donnée adressée par RAM est chargée dans le RTM (Registre Tampon Mémoire) à fin d'être utilisé par le processeur. En écriture, le processeur verse en mémoire à l'adresse contenue dans le registre RAM le contenu du registre RTM. Le Registre d'Adresse Mémoire (RAM) est l'un des deux composants d'une interface mémoire, l'autre étant le Registre de Tampon Mémoire (RTM). C'est l'interface mémoire le plus simple, il en existe de plus complexe. * Portail de l’informatique (fr)
  • En arquitectura de ordenadores, el Memory Address Register (MAR), en español Registro de Direcciones de Memoria, es un registro específico de alta velocidad, integrado en el microprocesador. Este registro contiene la dirección del dato que se quiere leer o escribir. El registro está conectado con el bus de direcciones, y su contenido se refleja en este bus. El número de direcciones que se pueden direccionar con una CPU depende del tamaño del MAR. Si el MAR tiene n bits de tamaño entonces se podrán direccionar un máximo de 2n palabras. (es)
  • In a computer, the memory address register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU registers, or the address to which data will be sent and stored via system bus. In other words, this register is used to access data and instructions from memory during the execution phase of instruction. MAR holds the memory location of data that needs to be accessed. When reading from memory, data addressed by MAR is fed into the MDR (memory data register) and then used by the CPU. When writing to memory, the CPU writes data from MDR to the memory location whose address is stored in MAR. MAR, which is found inside the CPU, goes either to the RAM (random-access memory) or cache. The MAR register is half of a minimal interface between a microprogram and computer storage; the other half is a MDR. In general, MAR is a parallel load register that contains the next memory address to be manipulated, for example the next address to be read or written. (en)
  • 기억 장치 주소 레지스터(Memory Address Register)는 흔히 MAR로 쓰이며 '주기억장치 주소 레지스터', 혹은 '주소 레지스터', 혹은 '메모리 주소 레지스터'라고도 불린다. 다음 번에 수행할 명령어의 주소가 저장되는 프로그램 카운터(PC : Program Counter 혹은 프로그램 계수기), 메모리상에 정의한 스택의 주소를 저장하는 스택 포인터(SP : Stack pointer), 제어 메모리(Control memory), 인덱스 주소를 저장하는 인덱스 레지스터(XR : IndeX Register), 기준 주소를 저장하는 베이스 레지스터(BR : Base Register) 등이 있다. 프로그램 카운터는 포함되지 않기도 한다. (ko)
  • Il memory address register (MAR) in ambito informatico, è un registro della CPU contenente l'indirizzo della locazione di memoria RAM in cui si andrà a leggere o scrivere un dato. In altre parole, il MAR contiene l'indirizzo di memoria del dato a cui la CPU dovrà accedere. Quando bisogna leggere dalla memoria principale, i dati vengono salvati nel Memory Data Register (MDR) e poi usati dalla CPU; quando invece bisogna scrivere, la CPU scrive i dati dal MDR all'indirizzo di memoria che è salvato nel MAR. Generalmente il MAR è un registro di carico parallelo che contiene il prossimo indirizzo di memoria a dover essere manipolato, per esempio, il prossimo indirizzo a dover essere letto o scritto. Se il registro indirizzi ha k bit, si possono indirizzare fino a celle di memoria, i cui indirizzi variano fra e . (it)
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  • مسجِّل عنوان الذاكرة (MAR) في الكمبيوتر، هو المسجِّل لوحدة المعالجة المركزية (CPU) الذي إما أن يخزن عنوان الذاكرة الذي يتم جلب البيانات منه إلى CPU, أو العنوان الذي سيتم إرسال البيانات اليه وتخزينها. (ar)
  • En arquitectura de ordenadores, el Memory Address Register (MAR), en español Registro de Direcciones de Memoria, es un registro específico de alta velocidad, integrado en el microprocesador. Este registro contiene la dirección del dato que se quiere leer o escribir. El registro está conectado con el bus de direcciones, y su contenido se refleja en este bus. El número de direcciones que se pueden direccionar con una CPU depende del tamaño del MAR. Si el MAR tiene n bits de tamaño entonces se podrán direccionar un máximo de 2n palabras. (es)
  • 기억 장치 주소 레지스터(Memory Address Register)는 흔히 MAR로 쓰이며 '주기억장치 주소 레지스터', 혹은 '주소 레지스터', 혹은 '메모리 주소 레지스터'라고도 불린다. 다음 번에 수행할 명령어의 주소가 저장되는 프로그램 카운터(PC : Program Counter 혹은 프로그램 계수기), 메모리상에 정의한 스택의 주소를 저장하는 스택 포인터(SP : Stack pointer), 제어 메모리(Control memory), 인덱스 주소를 저장하는 인덱스 레지스터(XR : IndeX Register), 기준 주소를 저장하는 베이스 레지스터(BR : Base Register) 등이 있다. 프로그램 카운터는 포함되지 않기도 한다. (ko)
  • Das Speicheradressregister (SAR) ist ein wichtiges Register eines Hauptprozessors in einem Von-Neumann-Rechner. Zusammen mit dem Speicherdatenregister (SDR) dient es als schneller Zwischenspeicher und verringert die negativen Auswirkungen des Von-Neumann-Flaschenhalses. Die meisten Von-Neumann-Rechner sind intern als Harvard-Architekturen implementiert, weshalb zwischen Daten- und Adressbus unterschieden wird. Bei vielen Systemen haben beide Busse eine unterschiedliche Breite. (de)
  • In a computer, the memory address register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU registers, or the address to which data will be sent and stored via system bus. The MAR register is half of a minimal interface between a microprogram and computer storage; the other half is a MDR. In general, MAR is a parallel load register that contains the next memory address to be manipulated, for example the next address to be read or written. (en)
  • Dans un ordinateur, le Registre d'Adresse Mémoire (RAM) (Speicheradressregister en allemand ou Memory Address Register en anglais) est un registre qui contient l'adresse mémoire depuis laquelle ou vers laquelle une donnée est lue ou écrite par le processeur. En d'autre mots, RAM contient la position en mémoire de la donnée qui doit être accédée. En lecture, la donnée adressée par RAM est chargée dans le RTM (Registre Tampon Mémoire) à fin d'être utilisé par le processeur. En écriture, le processeur verse en mémoire à l'adresse contenue dans le registre RAM le contenu du registre RTM. (fr)
  • Il memory address register (MAR) in ambito informatico, è un registro della CPU contenente l'indirizzo della locazione di memoria RAM in cui si andrà a leggere o scrivere un dato. In altre parole, il MAR contiene l'indirizzo di memoria del dato a cui la CPU dovrà accedere. Quando bisogna leggere dalla memoria principale, i dati vengono salvati nel Memory Data Register (MDR) e poi usati dalla CPU; quando invece bisogna scrivere, la CPU scrive i dati dal MDR all'indirizzo di memoria che è salvato nel MAR. (it)
rdfs:label
  • مسجل عنوان الذاكرة (ar)
  • Speicheradressregister (de)
  • Registro MAR (es)
  • Registre d'Adresse Mémoire (fr)
  • Memory address register (it)
  • 기억 장치 주소 레지스터 (ko)
  • Memory address register (en)
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