Main Purpose General Purpose Essay - 558 words

1. What are the four steps of CPU execution are: 2. List all the 8086 register state their purpose. Group them by general purpose, pointing, and segment. They are: ax Accumilator (general purpose storage) cx Counting (input / output addresses) dx Data (store info about peripherals The main purpose of the above started registers is to contain the initial data for, and the results of, arithmetic or logical The main purpose of the above stated registers is to point The 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 because their values are influenced by the precious instructions and reflect some peculiarities as a result.


Control Flags are so named because their purpose is to control the execution of certain instructions. - non-voltage (is kept at shut-down) - Volitable (is not kept at shut-down) 5) State and define the three busses used by the CPU. also state if the bus is unidirectional or bidirectional. Sends info (Carry's info as well) 6) A 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. Jan convert; jan = jump not zero 7) State the difference between a macro and a procedure. Macro - Copies code a compilation / inserts Procedure - Jumps to instruction in memory 8) Give examples of the following addressing modes: 9) Define the following assembler directives: 10) For every 'push' there is a 'pop' 11) Write a program ...................................................................................................................................................................................................................................................................................................................................................................

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Essay Tags: segment, register, main purpose, general purpose, registers

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