Advanced Microprocessor Question Banks

ADVANCED MICROPROCESSOR Assignments 1. Explain in brief the “ Pipelining” 2. What does Superscalar Architecture means? 3. What is pipelining? Discuss various problems in designing efficient pipeline. 4. Enlist RISC and CISC features. 5. Write short note on following 1. Power PC Architecture 2. Sun SPARC Architecture 6. List the important features of RISC Processor. 7. When does 8086 generate wait state? How will it come to its normal mode again? 8. Where is the interrupt descriptor table located for the protected mode operation? 9. Explain the following terms 1. Descriptor 2. Selector 3. Invisible Register 10.Comment on Virtual-86 mode. 11.In short describe the Cache memory with reference to 80486. 12.Enlist the Technical Advantages of Pentium? 13.Compare 80286 with 8086 Microprocessor. 14.Explain priorities of interrupt with an example. 15.Explain the application of following terms 1. GDTR 2. LDTR Prof. Mehul P. Barot and Prof. Hitesh Barot

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3. IDTR 4. MSW 16.What are the major advantages of memory segmentation? Enlist comments on each. 17.Write short note on “DEC Alpha Axp”. 18.How Operating modes are different from a addressing modes? 19.Discuss the features were not basic features RISC, but they are used by different vendors in their processor structure to improve performance. 20.Draw the logical block diagram of Pentium and explain its important features. 21.Explain the Access Right byte of descriptor 22.Write down short note on followings 1. Memory banks in 8086 2. Macro 3. Assembler 4. Debugger 5. Editor 6. Compiler 7. Interpreter 8. Linker 9. Loader 23.Explain the following instruction for 80286 with example 1. BOUND 2. ENTER 3. PUSH A 4. IN S 24.Compare software protected mode and real mode addressing 25.Discuss the use of REP Prefix. Prof. Mehul P. Barot and Prof. Hitesh Barot

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26.What is descriptor? Give its format and discuss the use of each field with an example. 27.What do you mean by programmable invisible registers? 28.Explain page table and page directory entry with example. 29.Draw and explain functional block diagram of 80386 microprocessor. 30.Justify statement program written for 8088 may or may not run faster on 8086. 31.Give the function of each hardware section of 80286. 32.How virtual address is translated into physical address if paging is disable in 80386. 33.What is interrupt service routine? Why do you write and test it. 34.Compare 8086/88/286/386, for address lines, data lines, size of segments, cache support operating modes. 35.Difference between LDT and GDT. 36.Each memory access in protected mode needs conversion of address which is time consuming process. Discuss now 80386 with different registers and request. Solve this problem and improve overall performance. 37.What is selector? How is it used to access the segment stored in main memory. 38.Write short note on following 1. Paging in 80386. 2. Memory interfacing with 80286 using ALE signal 39.Why does 8086 take 2 machine cycles of 16-bit word starts from odd location in memory? 40.Justify: Divide overflow and interrupt on overflow can’t occur at the same time. 41.Justify the statement: Pentium is CISC processor employing RISC characteristics. 42.How does register window help in improving call switching time? 43.Draw and explain the functional block diagram of clock generator 8284-A used with 8086. 44.Technically what is importance of Aliasing Prof. Mehul P. Barot and Prof. Hitesh Barot

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Paper – January 2008 1. Write short note on following 1. RISC Properties. 2. SPARC Family 3. Power PC Architecture 2. What happens interrupt 8086 micro? Show the complete process using diagram and working stack and IVT. 3. Short note on Pipelining. 4. Short note on addressing modes. 5. Short note on protected mode memory addressing. 6. Short note on Memory paging mechanism in 80386 7. Where is the Interrupt descriptor table located? 8. Explain maximum mode operation in 8086? 9. List merits of memory segmentation in 8086 microprocessor 10.How 8080 handle interrupt? 11.Write a program to reverse each and every word in the given string. 12.Write a program to convert unpacked BCD digit to packed BCD digit. The i/p and o/p should be done using standard i/p and o/p devices. 13.What do you mean by segment override prefix in 8086 architecture? 14.Explain following instructions 1. HOLD 2. XLAT

Prof. Mehul P. Barot and Prof. Hitesh Barot

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3. ASSUME 4. EVEN 5. LENGTH 6. PTR

Paper – 2006 1. What is minimum size of segment in 8086? Give reason for it. 2. How does 8086 determine whether instruction is 8-bit or 16-bit? 3. When does 8086 flushes pre fetch queue? Why? 4. If AL registers contains 5 then what will be the binary contents of AL after executing the CBW instructions. 5. Give the steps to set Trap flag to 1. 6. Divide overflow and Interrupt overflow cannot occur at same time. 7. Justify: Pentium is CISC processor employing RISC features. 8. Program written for 8088 may or may not run faster on 8086. 9. Write an 8086 program to implement following C code. Sum=0; For (i=0;i