carry flag - meaning and definition. What is carry flag
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What (who) is carry flag - definition


Carry flag         
PROCESSOR FLAG INDICATING WHETHER UNSIGNED ARITHMETIC OVERFLOW HAS OCCURRED
Carry bit; Borrow flag
In computer processors the carry flag (usually indicated as the C flag) is a single bit in a system status register/flag register used to indicate when an arithmetic carry or borrow has been generated out of the most significant arithmetic logic unit (ALU) bit position. The carry flag enables numbers larger than a single ALU width to be added/subtracted by carrying (adding) a binary digit from a partial addition/subtraction to the least significant bit position of a more significant word.
Half-carry flag         
A half-carry flag (also known as an auxiliary flag or decimal adjust flag) is a condition flag bit in the status register of many CPU families, such as the Intel 8080, Zilog Z80, the x86, and the Atmel AVR series, among others. It indicates when a carry or borrow has been generated out of the least significant four bits of the accumulator register following the execution of an arithmetic instruction.
Must-carry         
RULES REQUIRING CABLE TV COMPANIES TO CARRY CERTAIN BROADCAST STATIONS
Must carry; Must carry rules; Must-carry provision
In cable television, governments apply a must-carry regulation stating that locally licensed television stations must be carried on a cable provider's system.