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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/**
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* Alee Forth: A portable and concise Forth implementation in modern C++.
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* Copyright (C) 2023 Clyne Sullivan <clyne@bitgloo.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef ALEEFORTH_MEMDICT_HPP
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#define ALEEFORTH_MEMDICT_HPP
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#include "dictionary.hpp"
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constexpr unsigned long int MemDictSize = 4096;
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class MemDict : public Dictionary
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{
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uint8_t dict[MemDictSize];
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public:
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virtual Cell read(Addr addr) const final {
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return *reinterpret_cast<const Cell *>(dict + addr);
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}
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virtual int write(Addr addr, Cell value) final {
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*reinterpret_cast<Cell *>(dict + addr) = value;
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return 0;
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}
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virtual uint8_t readbyte(Addr addr) const final {
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return dict[addr];
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}
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virtual int writebyte(Addr addr, uint8_t value) final {
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dict[addr] = value;
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return 0;
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}
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};
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#endif // ALEEFORTH_MEMDICT_HPP
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