Instruction set and addressing modes of 8086 microprocessor interrupt

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It consists of a powerful instruction set, which provides operation like division and 8086 is designed to operate in two modes, i.e., Minimum and Maximum mode. INTA (Output): Pin number 24 interrupts acknowledgement. The microprocessor 8086 sends this signal to latch the address into the Intel 8282/8283 latch. Microprocessor - 8086 Addressing Modes. Immediate addressing mode. Register addressing mode. Direct addressing mode. Register indirect addressing mode. Based addressing mode. Indexed addressing mode. Based-index addressing mode. Based indexed with displacement mode. specify where in 1 MB of processor memory these 4 segments are located the processor uses four segment control bits are set by instructions to control some operation of the CPU. 0000h - 03FFh are reserved for interrupt vectors. 8086 addressing modes is the first step towards mastering 8086 assembly language. There are 256 software interrupts in 8086 microprocessor. The instructions are of the format INT type where type ranges from 00 to FF. The starting address Addressing modes in 8086 microprocessor. Register mode – In this type of addressing mode both the operands are registers. Immediate mode – In this type of addressing mode the source operand is a 8 bit or 16 bit data. Displacement or direct mode – In this type of addressing mode the effective address is directly given Aug 12, 2018 - 8086 Microprocessor-Addressing Modes,Memory,Interrupts. Implied – the data value/data address is implicitly associated with the instruction. Register – references the data in a register or in a register pair. Immediate – the data is provided in the instruction. 8086 Microprocessor-Addressing Modes,Memory,Interrupts. Implied – the data value/data address is implicitly associated with the instruction. Register – references the data in a register or in a register pair. Immediate – the data is provided in the instruction. 8086 has a 20 bit address bus can access upto 220 memory locations ( 1 MB) queues them in order to speed up instruction execution. • It requires instruction, it transfers control to a location corresponding to another set interface. Interrupt interface. Memory. I/O controls. Block Diagram of the Minimum Mode 8086 MPU.