Adjust flag
Encyclopedia
The Adjust flag is a flag stored in the FLAGS register on all x86 compatible CPUs. It is bit
4. It is used to indicate when an arithmetic
carry or borrow has been generated out of the 4 least significant bits. It is primarily used in BCD
arithmetics.
Bit
A bit is the basic unit of information in computing and telecommunications; it is the amount of information stored by a digital device or other physical system that exists in one of two possible distinct states...
4. It is used to indicate when an arithmetic
Arithmetic
Arithmetic or arithmetics is the oldest and most elementary branch of mathematics, used by almost everyone, for tasks ranging from simple day-to-day counting to advanced science and business calculations. It involves the study of quantity, especially as the result of combining numbers...
carry or borrow has been generated out of the 4 least significant bits. It is primarily used in BCD
Binary-coded decimal
In computing and electronic systems, binary-coded decimal is a digital encoding method for numbers using decimal notation, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits which, in general, represent the decimal range 0 through 9...
arithmetics.