81 lines
5.1 KiB
C++
81 lines
5.1 KiB
C++
//
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// 6847.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 04/05/2026.
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// Copyright © 2026 Thomas Harte. All rights reserved.
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//
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#include "6847.hpp"
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#include <cstdint>
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namespace {
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static constexpr uint8_t font[64][12] = {
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x02, 0x1a, 0x2a, 0x2a, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x14, 0x22, 0x22, 0x3e, 0x22, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3c, 0x12, 0x12, 0x1c, 0x12, 0x12, 0x3c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x20, 0x20, 0x20, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3c, 0x12, 0x12, 0x12, 0x12, 0x12, 0x3c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x20, 0x20, 0x3c, 0x20, 0x20, 0x3e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x20, 0x20, 0x3c, 0x20, 0x20, 0x20, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1e, 0x20, 0x20, 0x26, 0x22, 0x22, 0x1e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x3e, 0x22, 0x22, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x08, 0x08, 0x08, 0x08, 0x08, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x02, 0x02, 0x02, 0x02, 0x22, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x24, 0x28, 0x30, 0x28, 0x24, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x3e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x36, 0x2a, 0x2a, 0x22, 0x22, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x32, 0x2a, 0x26, 0x22, 0x22, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x22, 0x22, 0x22, 0x22, 0x22, 0x3e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3c, 0x22, 0x22, 0x3c, 0x20, 0x20, 0x20, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x2a, 0x24, 0x1a, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3c, 0x22, 0x22, 0x3c, 0x28, 0x24, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x10, 0x08, 0x04, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x14, 0x14, 0x08, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x2a, 0x2a, 0x36, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x22, 0x14, 0x08, 0x14, 0x22, 0x22, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x22, 0x22, 0x14, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x02, 0x04, 0x08, 0x10, 0x20, 0x3e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x20, 0x20, 0x10, 0x08, 0x04, 0x02, 0x02, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x0e, 0x02, 0x02, 0x02, 0x02, 0x02, 0x0e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x1c, 0x2a, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x3e, 0x10, 0x08, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x14, 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x14, 0x14, 0x36, 0x00, 0x36, 0x14, 0x14, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x1e, 0x20, 0x1c, 0x02, 0x3c, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x32, 0x32, 0x04, 0x08, 0x10, 0x26, 0x26, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x10, 0x28, 0x28, 0x10, 0x2a, 0x24, 0x1a, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x10, 0x20, 0x20, 0x20, 0x10, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x04, 0x02, 0x02, 0x02, 0x04, 0x08, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x08, 0x1c, 0x3e, 0x1c, 0x08, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x3e, 0x08, 0x08, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x10, 0x20, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x02, 0x02, 0x04, 0x08, 0x10, 0x20, 0x20, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x18, 0x24, 0x24, 0x24, 0x24, 0x24, 0x18, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x08, 0x18, 0x08, 0x08, 0x08, 0x08, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x02, 0x1c, 0x20, 0x20, 0x3e, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x02, 0x0c, 0x02, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x04, 0x0c, 0x14, 0x3e, 0x04, 0x04, 0x04, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x20, 0x3c, 0x02, 0x02, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x20, 0x20, 0x3c, 0x22, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x3e, 0x02, 0x04, 0x08, 0x10, 0x20, 0x20, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x22, 0x1c, 0x22, 0x22, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x1c, 0x22, 0x22, 0x1e, 0x02, 0x02, 0x1c, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x08, 0x10, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x04, 0x08, 0x10, 0x20, 0x10, 0x08, 0x04, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x10, 0x08, 0x04, 0x02, 0x04, 0x08, 0x10, 0x00, 0x00, },
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{ 0x00, 0x00, 0x00, 0x18, 0x24, 0x04, 0x08, 0x08, 0x00, 0x08, 0x00, 0x00, },
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};
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}
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