48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
/*
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Copyright 2016-2017 StapleButter
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef FIFO_H
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#define FIFO_H
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#include "types.h"
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class FIFO
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{
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public:
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FIFO(u32 num);
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~FIFO();
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void Clear();
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void Write(u32 val);
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u32 Read();
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u32 Peek();
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u32 Level() { return NumOccupied; }
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bool IsEmpty() { return NumOccupied == 0; }
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bool IsFull() { return NumOccupied >= NumEntries; }
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private:
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u32 NumEntries;
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u32* Entries;
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u32 NumOccupied;
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u32 ReadPos, WritePos;
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};
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#endif
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