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60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
//
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// 6560.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 05/06/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#ifndef _560_hpp
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#define _560_hpp
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#include "../../Outputs/CRT/CRT.hpp"
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namespace MOS {
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class MOS6560 {
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public:
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MOS6560();
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Outputs::CRT::CRT *get_crt() { return _crt.get(); }
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uint16_t get_address();
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void set_graphics_value(uint8_t value, uint8_t colour_value);
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void set_register(int address, uint8_t value);
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uint8_t get_register(int address);
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private:
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std::unique_ptr<Outputs::CRT::CRT> _crt;
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bool _interlaced, _tall_characters;
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uint8_t _first_column_location, _first_row_location;
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uint8_t _number_of_columns, _number_of_rows;
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uint16_t _character_cell_start_address, _video_matrix_start_address;
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uint8_t _backgroundColour, _borderColour, _auxiliary_colour;
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bool _invertedCells;
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int _horizontal_counter, _vertical_counter;
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int _column_counter, _row_counter;
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uint16_t _video_matrix_address_counter, _video_matrix_line_address_counter;
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enum State {
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Sync, ColourBurst, Border, Pixels
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} _this_state, _output_state;
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unsigned int _cycles_in_state;
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uint8_t _character_code, _character_colour, _character_value;
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uint8_t *pixel_pointer;
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uint8_t _registers[16];
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uint8_t _colours[16];
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void output_border(unsigned int number_of_cycles);
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};
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}
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#endif /* _560_hpp */
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