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Why microprocessor 8085 has 16 bit address lines?
Because that's how Intel designed it. The 8085 is an 8-bit computer operating on a 16-bit address space.
What is the structure of each microprocessors?
the structure of microprocessor consists of ALU, Register array unit and control unit.
How many bits in 8085 microprocessor?
The 8085 is an 8-bit microprocessor. Even though there are some 16-bit registers (BC, DE, HL, SP, PC), with some 16-bit operations that can be performed on them, and a 16-bit address bus, the accumulator (A), the arithmetic logic unit (ALU), and the data bus are 8-bits in size, making the 8085 an 8-bit computer.
What logical function performed by alu of 8085 to complement a number?
The ALU (Arithmetic Logic Unit) of the 8085 microprocessor performs the complement of a number using the "CMA" (Complement Accumulator) instruction. This instruction inverts all bits of the accumulator, effectively calculating the one's complement of the stored value. For the two's complement, which is commonly used for signed number representation, the result can be obtained by first taking the one's complement and then adding one to the result.
Type of DAC in 8085 microprocessor?
None. A microprocessor is just the processing core - ALU, registers, microcode sequencers, buses, etc. A microCONTROLLER will have peripherals built into the same package and connected to a microprocessor. You will need to check with the specific vendor to see what peripherals are available with which core. Currently, the 8051 is probably the longest lasting, most used 8 bit processor. I suggest looking at data sheets from the following companies: Atmel, Philips, Infineon, and Texas Instruments.
Why zero flag is not set in INX instruction of microprocessor 8085?
Because that is the way Intel designed the INX instruction of the 8085. The 8080 is also the same. INX increments (and DCX decrements) the 16 bit register pairs or BC, DE or HL, depending on what register pair you specify in the INX (or DCX) instruction. To check is the value is 0 after an INX (or DCX) instruction, you need to OR the values of the register pair into the A register. For example..... INX H ;increment HL register pair MOV A,H ; move H register into the accumulator ORA L ; Logical OR it with the L register JZ ADDR ; If 0 then jump to ADDR
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.
The part of the microprocessor that performs integer arithmetic operations is called the?
ALU
What are the flags affected by ALU in 8085 Explain briefly?
In the 8085 microprocessor, the Arithmetic Logic Unit (ALU) affects five flags in the status register: Sign Flag (S), Zero Flag (Z), Auxiliary Carry Flag (AC), Parity Flag (P), and Carry Flag (CY). The Sign Flag indicates the sign of the result; the Zero Flag is set if the result is zero; the Auxiliary Carry Flag is used for BCD operations; the Parity Flag indicates whether the number of 1s in the result is even or odd; and the Carry Flag indicates an overflow in arithmetic operations. These flags help in decision-making for subsequent operations and control flow in programs.
What is function of casing?
The function of cpu is alu
What are the two main components of a microprocessor?
The two main components of a microprocessor are the Arithmetic Logic Unit (ALU) and the Control Unit (CU). The ALU performs mathematical calculations and logical operations, while the CU manages and coordinates the activities of the microprocessor, directing data flow and instructing other components on how to process information. Together, these components enable the microprocessor to execute instructions and perform tasks.
How do a microprocessors ALU and control unit work?
A microprocessor's Arithmetic Logic Unit (ALU) performs mathematical operations (like addition and subtraction) and logical operations (such as AND, OR, NOT) on binary data. The Control Unit (CU) orchestrates the execution of instructions by fetching them from memory, decoding them, and directing the ALU and other components to carry out the required tasks. Together, the ALU and CU enable the microprocessor to execute programs by processing data based on the instructions provided. Their coordinated operation allows the microprocessor to perform complex computations efficiently.
