Semiconductor & Computer Engineering
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Difference between revisions of "Flag"
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{{Distinguish|flag value|flag register}} | {{Distinguish|flag value|flag register}} | ||
| − | A '''flag''' or an '''indicator bit''' is a hardware [[signal]] that indicates a specific condition or state has been met by a certain component. Flags are often used by subsequent components to determine the course of action that must be taken. Some processors have a dedicated storage space for such flags called a [[flag register]]. While a microprocessor might have many internal flags, they are not always made accessible to the software running. | + | A '''flag''' or an '''indicator bit''' (also known as a '''condition code bit''') is a hardware [[signal]] that indicates a specific condition or state has been met by a certain component. Flags are often used by subsequent components to determine the course of action that must be taken. Some processors have a dedicated storage space for such flags called a [[flag register]]. While a microprocessor might have many internal flags, they are not always made accessible to the software running. |
== Application == | == Application == | ||
Latest revision as of 12:54, 12 April 2014
- Not to be confused with flag value and flag register.
A flag or an indicator bit (also known as a condition code bit) is a hardware signal that indicates a specific condition or state has been met by a certain component. Flags are often used by subsequent components to determine the course of action that must be taken. Some processors have a dedicated storage space for such flags called a flag register. While a microprocessor might have many internal flags, they are not always made accessible to the software running.
Application[edit]
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Common flags[edit]
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Access to flags[edit]
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