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    Question: Using Arm Assembly Language (Arm Cortex-M Microcontroll

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    Mustafa Khudhair
    The document discusses writing an ARM assembly language program to simulate an elevator operating in a 9-story building with a basement. It provides descriptions of subroutines to: 1) Generate a 1 second delay 2) Display "Door open" after a 1 second delay 3) Display "Door close" after a 1 second delay 4) Move up one floor at a time, displaying each floor number, until the destination is reached 5) Move down one floor at a time, displaying each floor number, until the destination is reached 6) Display "Same floor" after a 1 second delay It also provides pseudo-code for the main program to initialize the elevator, get user input,

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    © All Rights Reserved
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    Question: Using Arm Assembly Language (Arm Cortex-M Microcontroll

    Uploaded by

    Mustafa Khudhair
    108 views2 pages
    The document discusses writing an ARM assembly language program to simulate an elevator operating in a 9-story building with a basement. It provides descriptions of subroutines to: 1) Generate a 1 second delay 2) Display "Door open" after a 1 second delay 3) Display "Door close" after a 1 second delay 4) Move up one floor at a time, displaying each floor number, until the destination is reached 5) Move down one floor at a time, displaying each floor number, until the destination is reached 6) Display "Same floor" after a 1 second delay It also provides pseudo-code for the main program to initialize the elevator, get user input,

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    The document discusses writing an ARM assembly language program to simulate an elevator operating in a 9-story building with a basement. It provides descriptions of subroutines to: 1) Generate a 1 second delay 2) Display "Door open" after a 1 second delay 3) Display "Door close" after a 1 second delay 4) Move up one floor at a time, displaying each floor number, until the destination is reached 5) Move down one floor at a time, displaying each floor number, until the destination is reached 6) Display "Same floor" after a 1 second delay It also provides pseudo-code for the main program to initialize the elevator, get user input,

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    108 views2 pages

    Question: Using Arm Assembly Language (Arm Cortex-M Microcontroll

    Uploaded by

    Mustafa Khudhair
    The document discusses writing an ARM assembly language program to simulate an elevator operating in a 9-story building with a basement. It provides descriptions of subroutines to: 1) Generate a 1 second delay 2) Display "Door open" after a 1 second delay 3) Display "Door close" after a 1 second delay 4) Move up one floor at a time, displaying each floor number, until the destination is reached 5) Move down one floor at a time, displaying each floor number, until the destination is reached 6) Display "Same floor" after a 1 second delay It also provides pseudo-code for the main program to initialize the elevator, get user input,

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    cortex-m microco…

    Question: Using ARM Assembly Language (ARM Cortex-M MicroControll…


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    Using ARM Assembly Language (ARM Cortex-M MicroController)


    Consider a 9-story building with a basement. The rst oor is given the number 1, the second is given the
    number 2 and so on. The basement is given the number 0. You will write a program to simulate an
    elevator operated throughout the whole building. Write the following subroutines that will work with the
    main program,
    a) DELAY: generates a software delay of 1 second.
    b) OPEN: displays a ‘Door open’ message on the screen after a delay of 1 second. A working version of
    this code is supplied for your use, if you like on the “Software Downloads” page from the Lab page
    c) CLOSE: displays a ‘Door close’ message on the screen after a delay of 1 second.
    d) UP: performs the following procedure: i. Displays a ‘Going UP’ message on the screen. ii. Goes up one
    oor at a time (1 second delay between each oor), until the elevator reaches the destination. iii. At each
    oor, prints that number (current oor number) on the screen. iv. After the elevator reaches the
    destination oor, stores this number as the current oor number in memory.
    e) DOWN: performs the following procedure: i. Displays a ‘Going DOWN’ message on the screen. ii. Goes
    down one oor at a time (1 second delay between each oor), until the elevator reaches the destination.
    iii. At each oor, prints that number (current oor number) on the screen. iv. After the elevator reaches
    the destination oor, stores this number as the current oor number in memory.
    f) STAY: displays a ‘Same oor’ message on the screen after a delay of 1 second.
    Following is the pseudo code you can use for your main program,
    1. Initialize the elevator at oor #1 (memory location containing the present location of the elevator).
    2. Call the ‘OPEN’ subroutine.
    3. Wait for the input from the user (0-9).
    4. Call the ‘CLOSE’ subroutine.
    5. Compare the number input with the present oor number.
    6. If the number input is greater than the present oor number, call the ‘UP’ subroutine. Then jump to
    step 9.
    7. If the number input is less than the present oor number, call the ‘DOWN’ subroutine. Then jump to
    step 9.
    8. If the number input is equal to the present oor number, call the ‘STAY’ subroutine
    9. Jump back to step 2.

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    13 answers

    ARM ASSEMBLY LANGUAGE:-

    An assembler translates a le containing

    assembly language code into the corresponding machine language.

    But ARM processors support an entirely different machine language.the design of the machine langauge
    encoding is called the instruction set architecture

    int total;

    int i;

    total=0;

    for (i=10; i>0; i--)

    total +=i;

    mov R0, ≠0
    mov R1, ≠10

    again ADD R0,R0,R1


    SUBS R1,R1
    BNE again

    halt B balt
      


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