48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
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* Copyright (C) 2011-2020 Dean Beeler, Jerome Fisher, Sergey V. Mikayev
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MT32EMU_LA32RAMP_H
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#define MT32EMU_LA32RAMP_H
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#include "globals.h"
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#include "Types.h"
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namespace MT32Emu {
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class LA32Ramp {
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private:
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Bit32u current;
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unsigned int largeTarget;
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unsigned int largeIncrement;
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bool descending;
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int interruptCountdown;
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bool interruptRaised;
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public:
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LA32Ramp();
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void startRamp(Bit8u target, Bit8u increment);
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Bit32u nextValue();
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bool checkInterrupt();
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void reset();
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bool isBelowCurrent(Bit8u target) const;
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};
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} // namespace MT32Emu
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#endif // #ifndef MT32EMU_LA32RAMP_H
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