[oopic] Re: Weird Program Behavior

--- In oopic@yahoogroups.com, "turgrid" <turgrid@...> wrote:
>

You might be getting overflows with your *100 and *1000 multiplies.

> Hello,
>
> I have crafted a partial program here that is not working. The
> program is getting messed up during calculateSteps method as the
> number of steps is never printed to lcd after calling
calculateSteps.
> The weird thing is, I copied the calculateSteps method out of
another
> program that worked flawlessly. The only difference between the two
> programs is the use of the LCD in this one. Why does the
> calculateSteps method never work (by the way "distance" is a number
> between 500 and 1000 inputed by user. I have confirmed that this is
> indeed the input received.) Thanks in advance for any help. I am
> using compiler 6.1.1 oopic-r c1.x+
>
>
> oDIO1 IO1 = New oDIO1;
> oDIO1 IO2 = New oDIO1;
> oDIO1 IO3 = New oDIO1;
>
> oWire IOWIRE = New oWire;
> oWire startInputWIRE = New oWire;
>
> oDIO1 startInput = New oDIO1;
>
> oSerialX lcd = New oSerialX;
>
> oWord cvStepSize = New oWord(9975);
> oWord cvStepAdjuster = New oWord(5013);
> oWord cvSteps = New oWord;
>
> oWord distance = New oWord;
>
> Void Main(Void){
> Delay = 1000;
> oBit adv = New oBit;
>
> lcd.IOLineS = 16;
> lcd.Baud = cv9600;
> lcd.Operate = 1;
> lcd.String = "?f";
> lcd.String = "?3"
> lcd.String = "Advanced Config"
> lcd.String = "??"
>
> IO1.IOLine = 5;
> IO2.IOLine = 6;
> IO3.IOLine = 7;
>
> IO1.Direction = cvOutput;
> IO2.Direction = cvInput;
> IO3.Direction = cvInput;
>
> Do {
> If(IO3.State == cvTrue)
> adv = 1;
> } While (adv == 0 And IO2.State == cvFalse);
> Do{
> }While (IO2.State == cvTrue);
> lcd.String = "?f"
> lcd.String = "Enter Distance: "
> lcd.String = ">";
>
> oByte count = New oByte;
> distance = 0;
>
> For (Byte x = 100; x > 0; x = x/10) {
> count = 0;
> Do {
> If (IO3.State == cvTrue) {
> Do {
> } While (IO3.State == cvTrue);
> count++;
> }
> } While (IO2.State == cvFalse);
> Do{
> }While (IO2.State == cvTrue);
> distance = distance + count * x;
> }
>
> lcd.String = "?f";
> lcd.String = "Distance: ";
> lcd.String = Str$(distance);
>
> lcd.String = "Steps: "; // PRINTING DISTANCE HERE WORKS

> calculateSteps; // I DO NOT KNOW WHAT HAPPENS HERE
> lcd.String = Str$(cvSteps); // NOT PRINTING
> }
>
> Void calculateSteps(Void) {
> oWord word1 = New oWord;
> oWord word2 = New oWord;
> word1 = (distance - 500) * 100; // PRINTING OUT word1 HERE
RETURNS
> 0 FOR UNKNOWN REASON
> word2 = (word1 Mod cvStepSize) / 10;
> word1 = word1/cvStepSize; // NOT SURE IT EVER EVEN EXECUTES
THIS
> AREA OF CODE
> cvSteps = word1 * 1000;
> cvSteps = cvSteps + word2 + cvStepAdjuster;
> }
>

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