Question: In an 8086 ?microprocessor-based system, a simple input/output application is desired using an 8255 ?chip, placed
Fantastic news! We've Found the answer you've been seeking!
Question:
Question: In an 8086 ?microprocessor-based system, a simple input/output application is desired using an 8255 ?chip, placed at consecutive even addresses starting from address 60H (60H - ?PortA, 62H ? ?PortB, 64H - ?PortC, and 66H ? ?control register). ?For this purpose, two buttons are connected to the PortA0 ?and PortA1 ?terminals of the 8255, ?producing logical 0
In an ?microprocessorbased system, a simple inputoutput application is desired using an ?chip, placed at consecutive even addresses starting from address H H ?PortA, H ?PortB, H ?PortC, and H ?control register ?For this purpose, two buttons are connected to the PortA ?and PortA ?terminals of the ?producing logical ?when pressed and logical ?when released. Four common anode segment displays are to be driven by PortB and PortC. PortC terminals will be used for the selection of the segment displays, while PortB terminals will serve as common data lines PortBsegment display a ?PortBsegment display h ?for the segment displays. All hardware connections related to the system have been made, and the project file is provided with the assignment. On the software side, a skeleton code defining the values to illuminate the common anode segment display segments for numbers ?at the data breakpoint is given in the project file.Write assembly code that implements the following:The system is controlled by two buttons INCREASE and DECREASE ?and consists of a counter with four segment displays. When the system is powered on ?the counter starts from ?The counter value increases by one each time the INCREASE button is pressed and decreases by one each time the DECREASE button is pressed. The counter counts in decimal places.STACK SEGMENT PARA STACK 'STACK'? DW ?DUPSTACK ENDSDATA SEGMENT PARA 'DATA'DIGITS DB CHFHAHBHHHHFHHHDATA ENDSCODE SEGMENT PARA 'CODE'? ASSUME CS:CODE, DS:DATA, SS:STAKSTART:? MOV AX ?DATA?MOV DS ?AX? ; Write your code hereENDLESS:?; Write your code here? JMP ENDLESSCODE ENDS? END START That is the code diagram
Related Book For
International Marketing And Export Management
ISBN: 9781292016924
8th Edition
Authors: Gerald Albaum , Alexander Josiassen , Edwin Duerr
Posted Date: