Eval button on hardware simulator in disabled mode

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Eval button on hardware simulator in disabled mode

freak
i tried implemeting for OR chip,i have already completed for NOT and AND.So i tried using these two gates like

Not(in =a,out=nota);

Not(in =b,out=notb);

and(a=nota,b=notb,out=andab);

Not(in=andab,out=orgate);

but eval button seems to be in disabled mode.i observed that Not gate expects the value of Out as Out,ita not working when i give as nota

can anyone give me some suggestion
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Re: Eval button on hardware simulator in disabled mode

cadet1620
Administrator
When the simulator's Eval button is permanently disabled, it is usually because one or more chip outputs are not connected.

In this case, there is no connection to the Or gate's "out" pin,

You need
Not (..., out=out);
to connect the Not part's "out" pin to the Or gate's "out" pin.

--Mark
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Re: Eval button on hardware simulator in disabled mode

freak
Thank you it has worked