In computer processors the carry flag (usually indicated as the C flag) is a single bit in a system status (flag) register used to indicate when an arithmetic carry or borrow has been generated out of the most significant ALU bit position.
In a computer processor the negative flag or sign flag is a single bit in a system status (flag) register used to indicate whether the result of the last mathematical operation resulted in a value in which the most significant bit was set.
The zero flag is typically abbreviated Z or ZF or similar in most documentation and assembly languages. Along with a carry flag, a sign flag and an overflow flag, the zero flag is used to check the result of an arithmetic operation, including bitwise logical instructions.
In computer processors, the overflow flag (sometime called V flag) is usually a single bit in a system status register used to indicate when an arithmetic overflow has occurred in an operation, indicating that the signed two's-complement result would not fit in the number of bits used for the operation (the ALU width).
In computer processors the parity flag indicates if the number of set bits is odd or even in the binary representation of the result of the last operation. It is normally a single bit in a processor status register. For example, assume a machine where a set parity flag indicates even parity.
Definition of carry trade. A carry trade is a strategy in which an investor borrows money at a low interest rate in order to invest in an asset that is likely to provide a higher return. This strategy is very common in the foreign exchange market.
3.3 Flags. ALU of 8085 have five flip flops whose states (set/reset) are determined by the result data of other registers and accumulator. They are called as Zero, Carry, Sign, Parity and Auxiliary-Carry flags.
The Flag register is a Special Purpose Register and is completely different from the other registers in a microprocessor. It consists of 8 bits and only 5 of them are useful in 8085. Therefore, 8085 has five flags - Sign flag, Zero flag, Auxillary carry flag, Parity flag and the Carry flag.
The FLAGS register is the status register in Intel x86 microprocessors that contains the current state of the processor. This register is 16 bits wide. Its successors, the EFLAGS and RFLAGS registers, are 32 bits and 64 bits wide, respectively.
A bit field is a data structure used in computer programming. Within microprocessors and other logic devices, collections of bit fields called "flags" are commonly used to control or to indicate the intermediate state or outcome of particular operations.
Registers are temporary storage locations inside the CPU that hold data and addresses. The register file is the component that contains all the general purpose registers of the microprocessor. A few CPUs also place special registers such as the PC and the status register in the register file.
A processor register (CPU register) is one of a small set of data holding places that are part of the computer processor. A register may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters). Some instructions specify registers as part of the instruction.
From wikipedia - Processor register: Special purpose registers ( SPR ) hold program state; they usually include the program counter (aka instruction pointer), stack pointer, and status register (aka processor status word). In embedded microprocessors, they can also correspond to specialized hardware elements.
In other words, MAR holds the memory location of data that needs to be accessed. When reading from memory, data addressed by MAR is fed into the MDR (memory data register) and then used by the CPU. When writing to memory, the CPU writes data from MDR to the memory location whose address is stored in MAR.
The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions. Most computer resources are managed by the CU.
Main memory is where programs and data are kept when the processor is actively using them. When programs and data become active, they are copied from secondary memory into main memory where the processor can interact with them. Main memory is sometimes called RAM. RAM stands for Random Access Memory.
Central Processing Unit. The CPU (Central Processing Unit) is the part of a computer system that is commonly referred to as the "brains" of a computer. The CPU is also known as the processor or microprocessor. The CPU is responsible for executing a sequence of stored instructions called a program.
A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices.
The Four Primary Functions of the CPU. The CPU processes instructions it receives in the process of decoding data. In processing this data, the CPU performs four basic steps: Fetch Each instruction is stored in memory and has its own address.
Video: Central Processing Unit (CPU): Parts, Definition & Function. The central processing unit (CPU) is the brain of your computer. It handles all the instructions you give your computer, and the faster it does this, the better.
What Are the Four Basic Functions of a Computer? The four basic functions of a computer are input, processing, output and storage.