Bus Error: Computing, Computer data storage, CPU, Software bug, Computer hardware, Source code, Memory address, Address bus, Exception handling, Segmentation fault, Memory management unit - Softcover

 
9786130757885: Bus Error: Computing, Computer data storage, CPU, Software bug, Computer hardware, Source code, Memory address, Address bus, Exception handling, Segmentation fault, Memory management unit
Softcover
ISBN 10: 6130757883 ISBN 13: 9786130757885
Verlag: OmniScriptum, 2010

Inhaltsangabe

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computing, a bus error is generally an attempt to access memory that the CPU cannot physically address. Bus errors can also be caused by any general device fault that the computer detects. A bus error rarely means that computer hardware is physically broken - it is normally caused by a bug in a program's source code. There are two main causes of bus errors: non-existent address. The CPU is instructed by software to read or write a specific physical memory address. Accordingly, the CPU sets this physical address on its address bus and requests all other hardware connected to the CPU to respond with the results, if they answer for this specific address. If no other hardware responds, the CPU raises an exception, stating that the requested physical address is unrecognised by the whole computer system. Note that this only covers physical memory addresses. When software tries to access an undefined virtual memory address, that is generally considered to be a segmentation fault rather than a bus error, though if the MMU is separate, the processor can't tell the difference.

Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.

Reseña del editor

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computing, a bus error is generally an attempt to access memory that the CPU cannot physically address. Bus errors can also be caused by any general device fault that the computer detects. A bus error rarely means that computer hardware is physically broken - it is normally caused by a bug in a program's source code. There are two main causes of bus errors: non-existent address. The CPU is instructed by software to read or write a specific physical memory address. Accordingly, the CPU sets this physical address on its address bus and requests all other hardware connected to the CPU to respond with the results, if they answer for this specific address. If no other hardware responds, the CPU raises an exception, stating that the requested physical address is unrecognised by the whole computer system. Note that this only covers physical memory addresses. When software tries to access an undefined virtual memory address, that is generally considered to be a segmentation fault rather than a bus error, though if the MMU is separate, the processor can't tell the difference.

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Verlag
OmniScriptum
Erscheinungsdatum
2010
Sprache
Englisch
ISBN 10 
6130757883
ISBN 13 
9786130757885
Einband
Tapa blanda
Anzahl der Seiten
104
Herausgeber
Miller Frederic P., Vandome Agnes F., McBrewster John
Kontakt zum Hersteller
Nicht verfügbar
Verantwortliche Person
Nicht verfügbar