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//============================================================================
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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// Copyright (c) 1995-1998 by Bradford W. Mott
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// See the file "license" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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// $Id: Control.hxx,v 1.2 1998/07/15 20:51:07 bwmott Exp $
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//============================================================================
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#ifndef CONTROLLER_HXX
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#define CONTROLLER_HXX
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A controller is a device that plugs into either the left or right
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controller jack of the Video Computer System (VCS). The pins of
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the controller jacks are mapped as follows:
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Left Controller Right Controller
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pin 1 D4 PIA SWCHA D0 PIA SWCHA
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pin 2 D5 PIA SWCHA D1 PIA SWCHA
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pin 3 D6 PIA SWCHA D2 PIA SWCHA
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pin 4 D7 PIA SWCHA D3 PIA SWCHA
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pin 5 D7 TIA INPT1 (Dumped) D7 TIA INPT3 (Dumped)
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pin 6 D7 TIA INPT4 (Latched) D7 TIA INPT5 (Latched)
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pin 9 D7 TIA INPT0 (Dumped) D7 TIA INPT2 (Dumped)
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Each of the pins connected to the PIA can be configured as an
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input or output pin. The "dumped" TIA pins are used to charge
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a capacitor. A potentiometer is sometimes connected to these
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pins for analog input.
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This is a base class for all controllers. It provides a view
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of the controller from the prespective of the controller's jack.
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@author Bradford W. Mott
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@version $Id: Control.hxx,v 1.2 1998/07/15 20:51:07 bwmott Exp $
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Enumeration of the controller jacks
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Create a new controller plugged into the specified jack
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@param jack The jack the controller is plugged into
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@param event The event object to use for events
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Controller(Jack jack, const Event& event);
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virtual ~Controller();
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Enumeration of the digital pins of a controller port
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One, Two, Three, Four, Six
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Enumeration of the analog pins of a controller port
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Read the value of the specified digital pin for this controller.
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@param pin The pin of the controller jack to read
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@return The state of the pin
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virtual bool read(DigitalPin pin) = 0;
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Read the resistance at the specified analog pin for this controller.
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The returned value is the resistance measured in ohms.
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@param pin The pin of the controller jack to read
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@return The resistance at the specified pin
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virtual Int32 read(AnalogPin pin) = 0;
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Write the given value to the specified digital pin for this
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controller. Writing is only allowed to the pins associated
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with the PIA. Therefore you cannot write to pin six.
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@param pin The pin of the controller jack to write to
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@param value The value to write to the pin
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virtual void write(DigitalPin pin, bool value) = 0;
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/// Constant which represents maximum resistance for analog pins
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static const Int32 maximumResistance;
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/// Constant which represents minimum resistance for analog pins
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static const Int32 minimumResistance;
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/// Specifies which jack the controller is plugged in
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/// Reference to the event object this controller uses
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const Event& myEvent;
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// Copy constructor isn't supported by controllers so make it private
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Controller(const Controller&);
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// Assignment operator isn't supported by controllers so make it private
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Controller& operator = (const Controller&);
added
removed
src/emucore/Control.hxx
