What is the importance of accumulator in microprocessor?
What is the importance of accumulator in microprocessor?
It is an 8-bit register that contains 8 flip-flops. It can store a maximum of 8 bits of data. The importance of the accumulator is that, in most of the 8-bit arithmetic and logical operations, the microprocessor will always take the first 8-bit number from the accumulator.
What is the main purpose of the accumulator?
They are used to maintain pressure, store and recapture energy, reduce pressure peaks, power chassis suspensions, and dampen shock, vibration and pulsations. Under gas pressure, accumulators store a volume of fluid that can be re-fed into the hydraulic system when it is needed.
What is the purpose of an accumulator in embedded?
What is the purpose of an accumulator? Explanation: Accumulator is used for all the arithmetic operations such as addition, subtraction, multiplication, as well as relational & logical operations.
What is the function of the accumulator in Alu?
The accumulator can hold one of the two operands during any ALU operation. If we want to add two bytes together, this would just be an example here; one byte would go to the accumulator, and the other in memory or general purpose register. When executed the two numbers serve as the input to the ALU.
What is accumulator 8051 microcontroller?
A or Accumulator (ACC) The Accumulator or Register A is the most important and most used 8051 Microcontroller SFRs. The Register A is located at the address E0H in the SFR memory space. The Accumulator is used to hold the data for almost all the ALU Operations.
What does accumulator mean?
Definition of accumulator : one that accumulates: such as. a : a device (as in a hydraulic system) in which a fluid is collected and especially in which it is kept under pressure as a means of storing energy. b British : storage battery. c : a part (as in a computer) where numbers are totaled or stored.
What is the purpose of an accumulator Mcq?
Explanation: A hydraulic accumulator is a storage reservoir under pressure where a liquid is stored under pressure. The fluid is mostly a non-compressible hydraulic fluid. This pressure is usually applied by an external source.
What is function of accumulator and program counter?
The program counter is a register showing the current location in a set of instructions and the accumulator is where values are stored before and after computation.
What is accumulator in programming?
An accumulator is a variable that the program uses to calculate a sum or product of a series of. values. A computer program does this by having a loop that adds or multiplies each successive. value onto the accumulator.
What is accumulator in microprocessor?
The accumulator is an 8-bit register that is a part of arithmetic/logic unit (ALU). This register is used to store 8-bit data and to perform arithmetic and logical operations. The result of an operation is stored in the accumulator. The accumulator is also identified as register A. Flags.
How many accumulators are there in 8051?
The most widely used registers of the 8051 are A (accumulator), B, R0-R7, DPTR (data pointer), and PC (program counter). All these registers are of 8-bits, except DPTR and PC….8051 Flag Bits and PSW Register.
| CY | PSW.7 | Carry Flag |
|---|---|---|
| RS0 | PSW.3 | Register Bank selector bit 0 |
| OV | PSW.2 | Overflow Flag |
| – | PSW.1 | User definable FLAG |