1- Which type of instruction dose INTO normally follow? Which flag does is test?
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- 4) Design and draw these memory units with their control circuits. Explain operations. a) A single EPROM 2716 is used with an 8088 microprocessor so that this microprocessor will see only X bytes of memory between the address range of DF800 –DFFFF or DD800 - DDFFF instead of 1M byte that it expects. Draw this circuit. What are X bytes? Do not use 74138 decoders. b) Design and show a 16K x 16-bit memory circuit by using 8K x 8-bit RAMS. Explain its operation. Do not use decoder 74138 chip.1. Draw the figure showing the types of registers in an 8086 microprocessor. Write the register group types explaining the functions shortly for each one.Pipelining in 8086 processors is achieved using which of the following option: O a. By using the counting register CX that acts as counter for LOOP instruction. O b. By using the 6-byte instruction queue that stores pre-fetched instructions while one instruction is being executed. O c. By using accumulator AX, that stores the result of multiplication operation. O d. By using the adder of the Bus Interface Unit that converts logical address to physical address.
- 8085 microprocessor went through its manipulation operation in the ALU, the results was transferred on the data bus and status of the results was stored in the flag register for indications . With your knowledge and understanding illustrate a complete bit configuration of 8085 flag register and show the functions of the represented bits in the register.B) Name the internal registers of 8086, Table the combination of registers to form the physical addresses for memory segments.4. Write a simple complete program with LOOP instruction for 8086 microprocessor, and explain the processes for each line of the program.
- a.Write the addressing modes of the following instructions: (i) MOV A, @R0(ii) MOVX @DPTR, A (iii) MOVC A, @A+DPTR (iv) MOV R0, #45H b) Write instructions to perform the following operations: (i) Move the content of Accumulator to register 7(R7).(ii) Move the contents of RAM memory location 55H to Port 1(iii) Receive content from ROM Memory location 200H into Accumulator.(iv) Clear bit 7 of the Accumulator.c) Why 4-20mA Current loop is widely used Industrial Standard for sensor data transmission and control. What are its advantages over 0-12V Standard? d) Two configurations of GPIB is shown in Fig. A and Fig. B. Explain the working of GPIB in both the configurations and what are the differences between the two. this question is asked in microcontroller and microprocessorP Flag question Explain the MUL instruction of 8086. Compare it with IMUL instruction. (1 +1 Marks) Write a Assembly language program for 8086 to find the cube of a number using MUL instruction. (5 Marks) (Note : Solve the question in paper, scan and upload along with the other Part B and C answers) B I III1. How do the data retention characteristics of RAM and ROM storage devices differ? 2. What is the purpose and use of the Program Counter (PC), Stack Pointer (SP), and Memory Address Register (MAR) registers? 3. Write an 8085 program to store 4EH in memory location 2840H and store 3EH in memory location 2841H, exchange them and store the result in memory locations 2842H and 2843H respectively. Solve this problem using three different methods. 4. Write a program to exchange the content of memory locations [2801] [2800] with [2803] [2802]. 5. The following program is supposed to add the contents of memory location 2050h to the Accumulator. The program works correctly only part of the time. Show that it is wrong to execute the program and how to correct it. MOV LDA ADC HLT В.А 2050H в 6. In a multibyte addition program, when you must use the ADD instruction? When you must use the ADC instruction? 7- The 8085-instruction set does not include a clear accumulator instruction. Which…
- Q. 1 There are different types of memories used in 8086 microprocessor one of them is called Stack. You are expected to investigate about it and answer the following questions related to it. i. What is stack memory? ii. What registers are associated with the stack in 8086? (including segment, pointer registers) iii. What is the use of stack? iv. Use any example which uses stack memory with appropriate instructions (PUSH, POP)Memory interfaced to 8086 Microprocessor 16 data bus should be arranged in-------- a.One bank. b.Two bank c.Three bank. d.Four bank JC mean jump to specific address when the CF in the flag bit is = a. zero b.two c.one d.three Overflow flag bit indicates overflow for a.Signed integer only. c. Signed and Unsigned integer only. The 8086 architecture consists pipeline processing. b. Two b. Three arithmetic operations. b. Unsigned integer only. d. Floating point. unit(s) work in parallel is called c.Four d.OneDraw the figure for memory segments with 8086 microprocessor software model. Explain the logical address structure used for each segment (Explain which registers are used in logical address presentation of each segment; segment address : offset address). Give an example solution to find the physical address in a segment from the logical address for 8086 microprocessor.