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39 lines
662 B
C++
39 lines
662 B
C++
//
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// PIA.h
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// Clock Signal
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//
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// Created by Thomas Harte on 03/12/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#ifndef Atari2600_PIA_h
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#define Atari2600_PIA_h
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#include "../../Components/6532/6532.hpp"
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namespace Atari2600 {
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class PIA: public MOS::MOS6532<PIA> {
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public:
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inline uint8_t get_port_input(int port) {
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return port_values_[port];
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}
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inline void update_port_input(int port, uint8_t mask, bool set) {
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if(set) port_values_[port] &= ~mask; else port_values_[port] |= mask;
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set_port_did_change(port);
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}
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PIA() :
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port_values_{0xff, 0xff}
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{}
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private:
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uint8_t port_values_[2];
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};
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}
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#endif /* PIA_h */
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