Microprocessor and Microcontrollers are two very important devices in Digital Electronics. Electronics for You bring you some topics on Microprocessor 8085 and Microcontroller 8051. Click on the link for blogs on Microprocessors and Microcontrollers. It focuses mainly on two units. Microprocessor 8085 Microcontroller 8051 Some more topics will be covered soon or later. You can […]
Machine Control Instructions in 8085 Microprocessor includes the instructions related to interrupts and the instruction used to stop the program execution. Machine Control Instructions in 8085 Opcode Operand Explanation of Instruction Description NOP none No operation No operation is performed. The instruction is fetched and decoded. However no operation is executed. Example: NOP HLT none
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The instructions in 8085 that are used to transfer the program control from one memory location to another memory location are grouped under branching instructions in 8085 microprocessor. Branching Instructions in 8085 Opcode Operand Explanation of Instruction Description JMP 16-bit address Jump unconditionally The program sequence is transferred to the memory location specified by the
Logical instructions in 8085 microprocessor performs the logical operations like AND, OR, EXCLUSIVE- OR, complement, compare and rotate. The flag conditions are altered after execution of an instruction in this group. Logical Instructions in 8085 Opcode Operand Explanation of Instruction Description CMP R M Compare register or memory with accumulator The contents of the operand
Arithmetic Instructions in 8085 Microprocessor includes the instructions, which performs the addition, subtraction, increment or decrement operations. The flag conditions are altered after execution of an instruction in this group. Arithmetic Instructions in 8085 Opcode Operand Explanation of Instruction Description ADD R M Add register or memory, to accumulator The contents of the operand (register
As per name data transfer instructions in 8085 microprocessor used for the data transfer operation. Let’s have a quick look over classification of instructions. 8085 Instruction Set Classification The 8085 instruction set can be classified into the following five functional headings. Data transfer instructions It includes the instructions that move (copies) data between registers or
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The addressing modes in 8085 Microprocessor are the ways in which it accesses memory or registers to retrieve or store data during processing. Before moving to topic, let’s see instruction and word size. Instruction Format An instruction is a command to the microprocessor to perform a given task on a specified data. Each instruction has
8085 Microprocessor has 40 pins and is used in many applications such as embedded systems, digital signal processing, and control systems. The pin diagram of 8085 microprocessor and function of each pin is discussed in this article. Pin Diagram of 8085 Microprocessor 8085 is a 40 pin IC, DIP package. The pins of the 8085
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The word “micro” means extremely small. It means the microprocessor solve the problem by the small IC. In introduction to microprocessor 8085, evolution, features and bus structure of 8085 are explained. Evolution of microprocessor 8085 The Intel 8085 is an 8-bit microprocessor introduced by Intel in 1976. It was binary compatible with the more-famous Intel
