# What is the function of the accumulator in alu

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Jul 10, 2021 · What is the function of 4CH? Function 4Ch of INT 21h Ends the current process (program), returns an optional 8-bit return code to the calling process. A return code of 0 usually indicates successful completion. What is ah in assembly language? |Apr 24, 2020 · Back to Basics: Accumulators. April 24, 2020. Here are the details on accumulators, devices that smooth the operations of hydraulic systems by storing fluid under pressure. Ray I. Scroggins. An accumulator is an iterator that takes an applicable value as argument and derives a function that evaluates the value, first on its entire (first) argument, then on the results of successive evaluations. There are two accumulators, Scan and Over. They have the same syntax and perform the same computation. |8085 is an 8-bit, general purpose microprocessor. It consists of following functional units:-. It is an 8-bit register that stores either 0 or 1 depending upon which value is stored in the accumulator. Accumulator is used to perform I/O, arithmetic and logical operations. It is connected to ALU and internal data bus.|Accumulator (AC) and Multiplier Quotient (MQ): are employed to hold temporarily operands and results of ALU operations. For example, the result of multiplying two 40-bit numbers is an 80-bit number; the most significant 40 bits are stored in the AC and the least significant in the MQ. Program Control Unit RegistersHint An accumulator is a storage element, that not only performs ALU operations but also complementing operations and decimal operations. 7). The function of the control unit is _________.But for efficient programming, the result tends to be stored in the accumulator register whilst the status of any calculations or logic operations are recorded in the Program Status Word register (called different things by different makers). An ALU can be shown as a symbol :-The basic ALU operates on integers rather than floating point numbers.The CPU means a central processing unit made up of ALU, Accumulator, Control Unit, Flag, Stack Pointer, and some general-purpose registers. The logical functions of the microcontroller are in the CPU's ALU. The instruction is transferred from the RAM to the instruction register.|Jun 30, 2019 · 1. Accumulator (A-register) It is an 8-bit register. It is associated with ALU. The accumulator is also called A-register. During the arithmetic / logic operations, one of the operand is available in Accumulator. The result of the arithmetic / logic operations is also stored in the Accumulator. 2. Temporary (TEMP) register It is an 8-bit register. Accumulator. Accumulator is a part of ALU which is a 8-bit register. Mainly this register is used to store 8-bit data and performing arithmetic and logic operation on it. The result of operation stored in accumulator. Flags: Flags are programmable that are used to store and transfer the data from the registers by using instructions. ALU use flip-flops that are used in two states either set and reset which is according to data condition in accumulator and other registers. The accumulator is the register used to store the 8-bit data to perform the arithmetic and logical operations. 12. Define control bus? This is single line that is generated by the MPU to provide timing of various operations. ... Explain the function of ALU and IO/M signals in the 8085 architecture?ALU CU Memory Control Lines PC INCpc/LOADpc to Registers, ALU, Memory, etc 2.5.8 NOTandRSH NOTcomplements(inverts)thecontentsoftheAC.AnALUoperation,soagainwe needaleveltoconﬁguretheALU.RSHinvolvesuseofashifter,oftenplacedatthe backendoftheALU. NOT 24. AC AC;!('|Each register has a specific function in the CPU. Given below are few commonly known registers: Accumulator (AC) the ALU requires temporary registers or memory locations for all its operations. An accumulator is one of the main registers of the ALU, used to store data and perform arithmetic and logic operations.|Von-Neumann Model with introduction, evolution of computing devices, functional units of digital system, basic operational concepts, computer organization and design, store program control concept, von-neumann model, parallel processing, computer registers, control unit, etc.|ALU performs the computation functions and it includes accumulator, temporary registers, arithmetic and logic circuits, and five flags. The temporary register holds the data temporarily during the arithmetic or logical operation of the processor. Accumulator stores the final result of the arithmetic or logical operations.|Short for arithmetic logic unit, the ALU is a complex digital circuit with an AU (arithmetic unit) and a LU (logic unit).Multiple Arithmetic Logic Units are in a computer, including multiple ALU's in the CPU (central processing unit), GPU (graphics processing unit), and FPU (floating-point unit).. The computer central processing unit ALU performs both bitwise and mathematical operations on ...|However, most processors have an accumulator register into which the ALU will automatically load the resultand of a processing operation. Many modern microprocessors have a larger number of CPU data registers which can operate as accumulators in complex arithmetic and logic operations. ... F is a function of N binary variables, the ith variable ...|Accumulator Register Example • Accumulator in PSIM Functions controlled by combinational logic design • Including holding data when no operations are specified Via feedback of AC i Only need a flip-flop at output of MUX • AC register (8-bits) • C register (1-bit) Similar to AC i design shown here|1.2.2 Arithmetic Logic Unit (ALU) The '54x devices perform 2s-complement arithmetic using a 40-bit ALU and two 40-bit accumulators (ACCA and ACCB). The ALU also can perform Boolean operations. The ALU can function as two 16-bit ALUs and perform two 16-bit operations simultaneously when the C16 bit in status register 1 (ST1) is set. 1.2.3 ...