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54 lines
1.6 KiB
C++
54 lines
1.6 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_COREWORDS_HPP
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#define ALEEFORTH_COREWORDS_HPP
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#include "types.hpp"
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#include "state.hpp"
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void user_sys(State&);
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class CoreWords
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{
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public:
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constexpr static std::size_t WordCount = 35;
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constexpr static Cell Immediate = (1 << 5);
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constexpr static Cell Compiletime = (1 << 6);
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static int findi(const char *);
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static int findi(State&, Word);
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static void run(unsigned int, State&);
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private:
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// Ends with '\0': regular word
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// Ends with '\1': compile-only word
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constexpr static char wordsarr[] =
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"drop\0dup\0swap\0pick\0sys\0"
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"+\0-\0m*\0_/\0_%\0"
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"_@\0_!\0>r\0r>\0=\0"
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"<\0allot\0&\0|\0^\0"
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"<<\0>>\0:\0'\0execute\0"
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"exit\0;\1here\0_lit\0literal\1"
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"_jmp\0_jmp0\0depth\0_rdepth\0key\0";
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};
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#endif // ALEEFORTH_COREWORDS_HPP
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