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49 lines
971 B
C++
49 lines
971 B
C++
//
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// 6850.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 10/10/2019.
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// Copyright © 2019 Thomas Harte. All rights reserved.
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//
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#ifndef Motorola_ACIA_6850_hpp
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#define Motorola_ACIA_6850_hpp
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#include <cstdint>
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#include "../../ClockReceiver/ClockReceiver.hpp"
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namespace Motorola {
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namespace ACIA {
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class ACIA {
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public:
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/*!
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Reads from the ACIA.
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Bit 0 of the address is used as the ACIA's register select line —
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so even addresses select control/status registers, odd addresses
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select transmit/receive data registers.
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*/
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uint8_t read(int address);
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/*!
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Writes to the ACIA.
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Bit 0 of the address is used as the ACIA's register select line —
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so even addresses select control/status registers, odd addresses
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select transmit/receive data registers.
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*/
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void write(int address, uint8_t value);
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void run_for(HalfCycles);
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private:
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int divider_ = 1;
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uint8_t status_ = 0x00;
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};
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}
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}
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#endif /* Motorola_ACIA_6850_hpp */
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