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Microprocessor and microcontroller lab viva questions
Microprocessor and microcontroller lab viva questions
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Microprocessor and microcontroller lab viva questions

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  • 1. MICROPROCESSOR AND MICROCONTROLLER LAB VIVA QUESTIONS1) How many bit 8086 microprocessor is? 2) What is the size of data bus of 8086? 3) What is the size of address bus of 8086? 4) What is the max memory addressing capacity of 8086? 5) Which are the basic parts of 8086? 6) What are the functions of BIU? 7) What are the functions of EU? 8) How many pin IC 8086 is? 9) What IC8086 is?10) What is the size of instruction queue in 8086?11) What is the size of instruction queue in 8088?12) Which are the registers present in 8086?13) What do you mean by pipelining in 8086?14) How many 16 bit registers are available in 8086?15) Specify addressing modes for any instruction?16) What do you mean by assembler directives?17) What .model small stands for?18) What is the supply requirement of 8086?19) What is the relation between 8086 processor frequency & crystal frequency?20) Functions of Accumulator or AX register?21) Functions of BX register?22) Functions of CX register?23) Functions of DX register?24) How Physical address is generated?25) Which are pointers present in this 8086?26) Which is by default pointer for CS/ES?27) How many segments present in it?28) What is the size of each segment?29) Basic difference between 8085 and 8086?30) Which operations are not available in 8085?31) What is the difference between min mode and max mode of 8086?32) What is the difference between near and far procedure?33) What is the difference between Macro and procedure?34) What is the difference between instructions RET & IRET?35) What is the difference between instructions MUL & IMUL?36) What is the difference between instructions DIV & IDIV?37) What is difference between shifts and rotate instructions?38) Which are strings related instructions?39) Which are addressing modes and their examples in 8086?40) What does u mean by directives?41) What does u mean by Prefix?42) What .model small means?43) Difference between small, medium, tiny, huge?44) What is dd, dw, db?45) Interrupts in 8086 and there function.46) What is the function of 01h of Int 21h?47) What is the function of 02h of Int 21h?48) What is the function of 09h of Int 21h?49) What is the function of 0Ah of Int 21h?50) What is the function of 4ch of Int 21h?51) What is the reset address of 8086?52) What is the size of flag register in 8086? Explain all.
  • 2. 53) What is the difference between 08H and 01H functions of INT 21H?54) Which is faster- Reading word size data whose starting address is at even or at odd address of memory in 8086?55) Which are the default segment base: offset pairs?56) Can we use SP as offset address holder with CS?57) Which are the base registers in 8086?58) Which is the index registers in 8086?59) What do you mean by segment override prefix?60) Whether micro reduces memory requirements?61) What do you mean by macro?62) What is diff between macro and procedure?63) Types of procedure?64) What TASM is?65) What TLINK is?66) What TD is?67) What do u mean by assembler?68) What do u mean by linker?69) What do u mean by loader?70) What do u mean by compiler?71) What do u mean by emulator?72) Stack related instruction?73) .stack 100 means?74) What do you mean by 20 dup (0)?75) Which flags of 8086 are not present in 8085?76) What is the size of flag register?77) Can you perform 32 bit operation with 8086? How?78) Whether 8086 is compatible with Pentium processor?79) What is 8087? How it is different from 8086?80) While accepting no. from user why u need to subtract 30 from that?81) While displaying no. from user why u need to add 30 to that?82) What are ASCII codes for nos. 0 to F?83) How does U differentiate between positive and negative numbers?84) What is range for these numbers?85) Which no. representation system you have used?86) What is LEA?87) What is @data indicates in instruction- MOV ax, @data?88) What is maximum size of the instruction in 8086?89) Why we indicate FF as 0FF in program?90) What is mul BX and div BX? Where result goes?91) Where queue is present?92) What is the advantage of using internal registers?93) What is SI, DI and their functions?94) Which are the pointers used in 8086 and their functions?95) What is a type of queue in 8086?96) What is minimum mode of 8086?97) What is maximum mode of 8086?98) Which are string instructions?99) In string operations which is by default string source pointer?100) In string operations which is by default string destination pointer?

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