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Word Count: 535
1What are the four steps of CPU execution are2List all the 8086 register state their prupose Group them by general purpose pointing and segment They areaxAccumilator general purpose storagecxCounting inputoutput addressesdxData store info about peripheralsThe main purpose of the above started registers is to containthe initaial data for and the reslts of arithmetic or logicalThe main purpose of the above stated registers is to pointThe main purpose of the above stated registers is to hold 3 List all the 8086 flags and state their purpose Group them by State flags are so named becouse their values are influenced by the precious intructions and reflect some pecularities as a resultControl Flags are so named becouse their pupose is to controlthe execution of certain intructions- non-volitale is kept at shut-down-Volitable is not kept at shut-down5State and define the three busses used by the CPUalso state if the bus is unidirectional or bidirectionalSends info Carrys info as well6A program that will take a single digit numeric input from the computer convert it to BCD ass the number and output the result to the monitor Jnz convert jnz jump not zero7State the difference between a macro and a procedureMacro - Copies code a compilating insertsProcedure - Jumps to instruction in memory8Give exaples of the following addresing modes9Define the following assembler directives10For every push there is a pop11Write a program that will encrypt a string by XORing one character with the next character in the string12Write a program that will decrypt the program you just wrote13State the address 5F32A of the next op-code as a segmented address a logical address Give the offset address and the segment address14List all the base-pointers registers and give the segmants that they can use Label the default segmen register with each Dont forget about IP-- Ip must pair with cs sp with ss becouse these regiesters are involved in automatic CPU operationsThen you can pair
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