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Accumulator contains one of the operand for any operation which is performed by the ALU.The result of the operation is stored in the Accumulator. thus it is a special register
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What is ax or accumulator register?
Accumulator is a general purpose register.it is a 8 bit register in 8085. it stores the temporary results of a current operation doing by 8085.it is also called 'A' register
What is Single accumulator CPU organization?
An accumulator machine, also called a single accumulator organisation , or a CPU with accumulator-based architecture, is a kind of CPU where, although it may have several registers, the CPU mostly stores the results of calculations in one special register, typically called "the accumulator". Historically almost all early computers were accumulator machines; and many microcontrollers still popular as of 2010
What the Difference between accumulator and register?
The accumulator is a general register that holds a value. It is also a special register that can be used as the target for the result of various arithmetic or logical computations. For instance, if you wanted to add two numbers, you could load the first into the accumulator, add the second to the accumulator, and then store the accumulator where wanted. The instruction register is an internal register that holds the value of the instruction opcode in order for the 8085 to decode and process the instruction. While it is shown on the Intel block diagram for the 8085, it is not directly accessible by the running program - it is for internal use only by the 8085.
What the Difference between accumulator and instruction register?
Examples: /360: no accumulator 8080: A 6800: A and B 8086: AX ...
Which register is used as a local variable?
accumulator
What is an accumulator in microprocessor?
the accumulator is an 8-bit register then is part of the arithmetic/logic unit(ALU). this register is used to store to store 8-bit data and to perform arithmetic & logical operation. the result of an operation is stored in the accumulator. the accumulator is also identified as register A.
Is accumulator a general purpose register?
Yes and no. You can use it as a general purpose register, but if you do that, you will lose the ability to perform arithmetic and logical computations and comparisons that would normally use the accumulator.
What are different types of registers in a basic computer?
computer has different registers each of which has different functions. ax - accumulator register bx - base register cx - counter register computer has different registers each of which has different functions. ax - accumulator register bx - base register cx - counter register
Difference between a counter and a register?
A register can hold data, and it can be used for temporary storage or, in the case of an accumulator, it can participate in arithmetic or logical operations. A counter is a special case of a register. Usually, it can only be loaded, stored, or incremented, or used for the stack or as the program counter.
Which instruction is used to clear accumulator if content is already there in that accumulator?
To clear only Accumulator & not the Flag Register, you can use: 1) ANI 00 H 2) MVI A, 00 H To clear both Accumulator as well as Flag Register, use: LXI H, 0000 H PUSH H POP A.
What is meant by accumulator in digital logic?
An accumulator is a register where arithmetic and logic operations are performed and their results stored (accumulated). Usually one operand was already stored in the accumulator while the other came from memory, the immediate value field of an instruction, or if the computer has them another register.Many early computers had only one accumulator and a small number of index registers. On such machines the accumulator register itself is the ALU, it has all the special circuits inside itself to perform those operations and modify its own contents. The flipflops that store the data in an accumulator are usually JK-flipflops, which simplify the design of those special circuits.Later when computers began to use multiple general purpose registers the concept of the accumulator fell out of favor. On such machines one separate ALU was shared with all the registers, which were reduced to just a small bank of very high speed RAM with no special circuits like accumulators usually have.
What is the instruction to add the data in register B to the data in accumulator?
add B
