mirror of https://github.com/stella-emu/stella.git
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
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//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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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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//
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// Copyright (c) 1995-2012 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id$
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//============================================================================
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#include "Event.hxx"
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#include "MindLink.hxx"
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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MindLink::MindLink(Jack jack, const Event& event, const System& system)
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: Controller(jack, event, system, Controller::MindLink),
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myIOPort(0xff),
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myMindlinkPos(0x2800),
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myMindlinkPos1(0x2800),
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myMindlinkPos2(0x1000),
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myMindlinkShift(1)
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{
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// Analog pins are never used by the MindLink
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myAnalogPinValue[Five] = myAnalogPinValue[Nine] = maximumResistance;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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MindLink::~MindLink()
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{
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void MindLink::update()
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{
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myIOPort |= 0xf0;
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if(0)//MPdirection & 0x01)
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myMindlinkPos = myMindlinkPos2 + 0x1800;
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else
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myMindlinkPos = myMindlinkPos1;
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myMindlinkPos = (myMindlinkPos & 0x3fffffff) +
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(myEvent.get(Event::MouseAxisXValue) << 3);
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if(myMindlinkPos < 0x2800)
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myMindlinkPos = 0x2800;
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if(myMindlinkPos >= 0x3800)
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myMindlinkPos = 0x3800;
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if(0)//MPdirection & 0x01)
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{
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myMindlinkPos2 = myMindlinkPos - 0x1800;
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myMindlinkPos = myMindlinkPos2;
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}
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else
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myMindlinkPos1 = myMindlinkPos;
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myMindlinkShift = 1;
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nextMindlinkBit();
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if(myEvent.get(Event::MouseButtonValue))
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myMindlinkPos |= 0x4000; /* this bit starts a game */
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//cerr << HEX4 << (int)myMindlinkPos << " : " << HEX2 << (int)myIOPort << endl;
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// Convert IOPort values back to booleans
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myDigitalPinState[One] = myIOPort & 0x10;
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myDigitalPinState[Two] = myIOPort & 0x20;
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myDigitalPinState[Three] = myIOPort & 0x40;
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myDigitalPinState[Four] = myIOPort & 0x80;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void MindLink::nextMindlinkBit()
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{
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if(myIOPort & 0x10)
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{
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myIOPort &= 0x3f;
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if(myMindlinkPos & myMindlinkShift)
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myIOPort |= 0x80;
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myMindlinkShift <<= 1;
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myDigitalPinState[One] = myIOPort & 0x10;
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myDigitalPinState[Two] = myIOPort & 0x20;
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myDigitalPinState[Three] = myIOPort & 0x40;
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myDigitalPinState[Four] = myIOPort & 0x80;
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cerr << dec << (int)myMindlinkShift << " : " << HEX2 << (int)myIOPort << endl;
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}
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}
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