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Registers 8086

General Purpose Registers:-   8086 Microprocessors has 8 general purpose registers, each register has its own name: AX :- the accumulator register (divided into AH/AL) BX :- the base address register (divided into BH/BL) CX :- the count register (divided into CH/CL) DX :- the data register (divided into DH/DL) SI :- source index register DI :- destination index register BP :- base pointer. SP :- stack pointer. Segment Register:- CS :- pointer at the segment containing the current program. DS :- generally points at segment where variables are defined. ES :- extra segment register, its up to coder to define its usage. SS :- points at the segment containing the stak Special Purpose registers:- IP :- the instruction pointer. Flags Register :- determines the current state of the processor. The Bus Interface Unit (BIU) contains the following registers::- IP - the Instruction Pointer CS - the Code Segment Register DS - the Data Segment Register SS - the...
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ASSIGNMENT

Assignment-1 Q1. Draw the pin diagram of 8086 microprocessor and explain the function of each pin.   Q2. Explain the internal hardware architecture of 8086 microprocessor with a neat diagram. Q3. Explain the 8086 instructions used for transferring data among registers, memory, stack and I/O devices. Q4. Explain data transfer, arithmetic and logical group instructions of 8086 microprocessor. Q5. Explain the string instruction. Q6. Explain the Addressing Modes. Q7. Explain the assembler directives and operators. Assignment-2 Q1. Give system bus architecture of 8086. Q2. Explain the Maximum mode configuration? Q3. What are the different interrupt of 8086 microprocessor? Q4. Explain the Minimum mode configuration? Q5. Explain the System Bus Timings.. Q6. Explain the memory interfacing with 8086/8088 in minimum mode. Q7. Explain the memory interfacing with 8086/8088 in maximum mode. Assignment-3 Q1. Draw and explain the architecture of DMA controller...
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MICROPROCESSOR - 8086 INSTRUCTION SETS

MICROPROCESSOR - 8086 INSTRUCTION SETS The first generation of computer language was the machine language in which to get an operation from the microprocessor it was to be instructed by supplying a sequence of zeros (0) and ones (1), but remembering the binary code for different operations was cumbersome. So some symbolic names called 'mnemonic' were developed which are easy to remember by the programmer. These mnemonics are called the instructions of the microprocessor. The set of different mnemonics used for programming the microprocessor are called the instruction set, and the language using the mnemonics is called assembly language. The instruction set of the 8086 fall under the following groups according to their functionality. The 8086 microprocessor supports 8 types of instructions − 1.       Data Transfer Instructions 2.       Arithmetic Instructions 3.       Logical Instructions OR Bit Manipu...
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