mirror of https://github.com/stella-emu/stella.git
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
//============================================================================
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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) 1995-2020 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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#ifndef TRAP_ARRAY_HXX
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#define TRAP_ARRAY_HXX
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#include "bspf.hxx"
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class TrapArray
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{
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public:
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TrapArray() = default;
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bool isSet(const uInt16 address) const { return myCount[address]; }
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bool isClear(const uInt16 address) const { return myCount[address] == 0; }
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void add(const uInt16 address) { myCount[address]++; }
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void remove(const uInt16 address) { myCount[address]--; }
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// void toggle(uInt16 address) { myCount[address] ? remove(address) : add(address); } // TODO condition
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void initialize() {
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if(!myInitialized)
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myCount.fill(0);
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myInitialized = true;
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}
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void clearAll() { myInitialized = false; myCount.fill(0); }
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bool isInitialized() const { return myInitialized; }
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private:
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// The actual counts
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std::array<uInt8, 0x10000> myCount;
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// Indicates whether we should treat this array as initialized
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bool myInitialized{false};
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private:
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// Following constructors and assignment operators not supported
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TrapArray(const TrapArray&) = delete;
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TrapArray(TrapArray&&) = delete;
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TrapArray& operator=(const TrapArray&) = delete;
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TrapArray& operator=(TrapArray&&) = delete;
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};
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#endif
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