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A half-carry flag (also known as an auxiliary flag) is a condition flag bit in the status register of many CPU families, such as the Intel 8080, Zilog Z80, the x86, [1] and the Atmel AVR series, among others.
The carry, parity, auxiliary carry (or half carry), zero and sign flags are included in many architectures (many modern (RISC) architectures do not have flags, such as carry, and even if they do use flags, then half carry is rare, since BCD math no longer common, and it even has limited support on long mode on x86-64).
The carry flag is set according to this addition, and subtract with carry computes a+not(b)+C, while subtract without carry acts as if the carry bit were set. The result is that the carry bit is set if a ≥ b , and clear if a < b .
Flags are flown at half-mast on ships and at naval stations. On shore, flags are flown at half-staff, meaning the flagpole is attached to a building or stuck in the ground. What are Jimmy Carter's ...
The flags were flown at half-staff during President Richard Nixon’s inauguration for his second term on Jan. 20, 1973, due to him having lowered them earlier for the death of former President ...
What does half-staff or half-mast mean? Flying the American flag, or a state flag, halfway up the flagpole is a symbol of mourning for the country or state after the death of a government official ...
A status register, flag register, or condition code register (CCR) is a collection of status flag bits for a processor.Examples of such registers include FLAGS register in the x86 architecture, flags in the program status word (PSW) register in the IBM System/360 architecture through z/Architecture, and the application program status register (APSR) in the ARM Cortex-A architecture.
According to USA.gov, the U.S. flag flies at half-staff or at half-mast when the nation or a state is in mourning. The flag can be ordered to fly at half-staff by the president, a state governor ...