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52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
//
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// 6526.h
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// Clock Signal
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//
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// Created by Thomas Harte on 18/07/2021.
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// Copyright © 2021 Thomas Harte. All rights reserved.
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//
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#ifndef _526_h
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#define _526_h
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#include <cstdint>
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namespace MOS {
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namespace MOS6526 {
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class PortHandler {
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};
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enum class Personality {
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// The 6526, used in machines such as the C64, has a BCD time-of-day clock.
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P6526,
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// The 8250, used in the Amiga, provides a binary time-of-day clock.
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P8250,
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};
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template <typename PortHandlerT, Personality personality> class MOS6526 {
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public:
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MOS6526(PortHandlerT &port_handler) noexcept : port_handler_(port_handler) {}
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MOS6526(const MOS6526 &) = delete;
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/// Writes @c value to the register at @c address. Only the low two bits of the address are decoded.
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void write(int address, uint8_t value);
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/// Fetches the value of the register @c address. Only the low two bits of the address are decoded.
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uint8_t read(int address);
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/// Runs for a specified number of half cycles.
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void run_for(const HalfCycles half_cycles);
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private:
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PortHandlerT &port_handler_;
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};
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}
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}
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#include "Implementation/6526Implementation.hpp"
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#endif /* _526_h */
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