Exception - Revision history

Jnc: raise hardware czse up

2020-07-01T16:44:32Z

raise hardware czse up

Jnc: mention hardware exceptions cause traps

2019-02-16T17:11:55Z

mention hardware exceptions cause traps

Jnc: +cat

2018-12-16T21:00:05Z

+cat

Jnc: Correct cat

2018-10-18T19:29:49Z

Correct cat

Jnc: Note raise/signal jargon

2017-10-21T14:45:22Z

Note raise/signal jargon

Jnc: An OK start

2017-10-21T14:24:39Z

An OK start

New page

An '''exception''' (more often '''condition''') refers to facilities in some [[programming language]]s and [[operating system]]s to indicate the occurrence of some sort of error or un-expected event - e.g. 'divide by zero' or 'unexpected end-of-file'.

When such an event happens, program execution is diverted to an [[condition handler]] for that specific condition, which is expected to deal with that condition.

The term 'exception' is often used for hardware-detected issues (e.g. in the [[Motorola 68000 Family]]); the term 'condition' is usually more general, and covers software-detected and generated issues.

{{stub}}

@@ Line 1: / Line 1: @@
 An '''exception''' (more often '''condition''') refers to facilities in some [[programming language]]s and [[operating system]]s to indicate the occurrence of some sort of error or un-expected event - e.g. 'divide by zero' or 'unexpected end-of-file'.
 When such an event happens, program execution is diverted to an [[condition handler]] for that specific condition, which is expected to deal with that condition.
 {{semi-stub}}
 [[Category: Software Concepts]]

@@ Line 3: / Line 3: @@
 When such an event happens, program execution is diverted to an [[condition handler]] for that specific condition, which is expected to deal with that condition.
-The term 'exception' is often used for hardware-detected issues (e.g. in the [[Motorola 68000 Family]]); the term 'condition' is usually more general, and covers software-detected and generated issues. Software is said to '''raise''' or '''signal''' a condition.
+The term 'exception' is also often used for hardware-detected issues (e.g. in the [[Motorola 68000 Family]]), where a [[trap]] is the usual result; the term 'condition' is usually more general, and covers software-detected and generated issues. Software is said to '''raise''' or '''signal''' a condition.
 {{semi-stub}}
 [[Category: Software Concepts]]

← Older revision		Revision as of 21:00, 16 December 2018
Line 6:		Line 6:

	{{semi-stub}}		{{semi-stub}}
		+
		+	[[Category: Software Concepts]]

← Older revision		Revision as of 19:29, 18 October 2018
Line 5:		Line 5:
	The term 'exception' is often used for hardware-detected issues (e.g. in the [[Motorola 68000 Family]]); the term 'condition' is usually more general, and covers software-detected and generated issues. Software is said to '''raise''' or '''signal''' a condition.		The term 'exception' is often used for hardware-detected issues (e.g. in the [[Motorola 68000 Family]]); the term 'condition' is usually more general, and covers software-detected and generated issues. Software is said to '''raise''' or '''signal''' a condition.

−	{{stub}}	+	{{semi-stub}}