Trap - Revision history

Jnc: +cat

2018-12-15T14:30:42Z

+cat

← Older revision		Revision as of 14:30, 15 December 2018
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			[[Category: CPU Basics]]

Jnc: Proper cat

2018-10-21T18:53:44Z

Proper cat

← Older revision		Revision as of 18:53, 21 October 2018
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	A '''trap''' of '''fault''' is similar to an [[interrupt]] in terms of the mechanism, and what happens when one occurs (in terms of saving the state of the [[Central Processing Unit\|CPU]] at the time the trap happened, and the invocation of a '''trap handler'''), but differs from an interrupt in that the latter is usually caused by some ''external'' event, whereas traps are almost always caused by an ''internal'' event.		A '''trap''' of '''fault''' is similar to an [[interrupt]] in terms of the mechanism, and what happens when one occurs (in terms of saving the state of the [[Central Processing Unit\|CPU]] at the time the trap happened, and the invocation of a '''trap handler'''), but differs from an interrupt in that the latter is usually caused by some ''external'' event, whereas traps are almost always caused by an ''internal'' event.

	For example, traps may happen in response to things like an attempt to divide by zero, or an attempt to take some action that it not allowed to a [[user]]'s [[process]], only the [[operating system]] (e.g. halt the machine).		For example, traps may happen in response to things like an attempt to divide by zero, or an attempt to take some action that it not allowed to a [[user]]'s [[process]], only to the [[operating system]] (e.g. [[halt]] the machine).

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Jnc: Add 'fault' term

2018-06-17T13:44:49Z

Add 'fault' term

← Older revision		Revision as of 13:44, 17 June 2018
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	A '''trap''' is similar to an [[interrupt]] in terms of the mechanism, and what happens when one occurs (in terms of saving the state of the [[Central Processing Unit\|CPU]] at the time the trap happened, and the invocation of a '''trap handler'''), but differs from an interrupt in that the latter is usually caused by some ''external'' event, whereas traps are almost always caused by an ''internal'' event.		A '''trap''' of '''fault''' is similar to an [[interrupt]] in terms of the mechanism, and what happens when one occurs (in terms of saving the state of the [[Central Processing Unit\|CPU]] at the time the trap happened, and the invocation of a '''trap handler'''), but differs from an interrupt in that the latter is usually caused by some ''external'' event, whereas traps are almost always caused by an ''internal'' event.

	For example, traps may happen in response to things like an attempt to divide by zero, or an attempt to take some action that it not allowed to a [[user]]'s [[process]], only the [[operating system]] (e.g. halt the machine).		For example, traps may happen in response to things like an attempt to divide by zero, or an attempt to take some action that it not allowed to a [[user]]'s [[process]], only the [[operating system]] (e.g. halt the machine).

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Jnc: An OK start

2017-09-23T22:29:31Z

An OK start

New page

A '''trap''' is similar to an [[interrupt]] in terms of the mechanism, and what happens when one occurs (in terms of saving the state of the [[Central Processing Unit|CPU]] at the time the trap happened, and the invocation of a '''trap handler'''), but differs from an interrupt in that the latter is usually caused by some ''external'' event, whereas traps are almost always caused by an ''internal'' event.

For example, traps may happen in response to things like an attempt to divide by zero, or an attempt to take some action that it not allowed to a [[user]]'s [[process]], only the [[operating system]] (e.g. halt the machine).

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