ثبات وضعیت
رجیستر وضعیت یک رجیستر وضعیت یا رجیستر "کری فلاگ"، عبارت است از مجموعه ای از " فلاگ:به یک یا چند بیت که دارای ارزش باینری باشد بیت" های یک پردازنده.
| Flag | Name | Description |
|---|---|---|
| Z | Zero flag | نشان می دهد که نتیجه یک عملیات محاسباتی یا منطقی صفر است. |
| C | Carry flag | Enables numbers larger than a single word to be added/subtracted by carrying a binary digit from a less significant word to the least significant bit of a more significant word as needed. It is also used to extend bit shifts and rotates in a similar manner on many processors (sometimes done via a dedicated X flag). |
| S / N | Sign flag / Negative flag | Indicates that the result of a mathematical operation is negative. In some processors,[1] the N and S flags are distinct with different meanings and usage: One indicates whether the last result was negative whereas the other indicates whether a subtraction or addition has taken place. |
| V / O / W | Overflow flag | نشان می دهد که نتیجه یک عملیات بزرگ تر از آن است که در یک بیت جای گیرد |
| P | Parity flag | Indicates whether the number of set bits of the last result is odd or even. |
جستارهای وابسته
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.