I don’t understand why my code outputs The values don’t increase even though I input increasing values for example
Enter a value: 2
Enter a value: 4
Enter a value: 10
The values don’t increase

I also don’t understand what this means
“after returning back to the caller, your function should not change the value of any register other than DX”.

program IncreasingCheck;
#include( "stdlib.hhf" );

static
    value1: int8;
    value2: int8;
    value3: int8;

procedure increasing( valuel : int8; value2 : int8; value3 : int8 ); @nodisplay; @noframe;
begin increasing;
    // Checking if value2 is greater than value1
    mov( valuel, AL );
    mov( value2, BL );
    mov( value3, CL );

    cmp( AL, BL );
    jge NotIncreasing;

    // Checking if value3 is greater than value2
    cmp( BL, CL );
    jge NotIncreasing;

    // If both conditions are true, it's increasing
    mov( 1, DX );
    jmp Done;

NotIncreasing:
    mov( 0, DX );

Done:
    ret();
    
end increasing;

begin IncreasingCheck;
    stdout.put( "Enter a value: " );
    stdin.get( value1 );

    stdout.put( "Enter a value: " );
    stdin.get( value2 );

    stdout.put( "Enter a value: " );
    stdin.get( value3 );

    // Call the increasing procedure
    call increasing;

    // Output result
    cmp(DX, 1);
    je Increase;
    jmp NoInc;
    
    Increase:
        stdout.put( "The values increase!" );
        jmp EndProgram;

    NoInc:
        stdout.put( "The values don't increase" );

    EndProgram:

end IncreasingCheck;