122 lines
4.1 KiB
C++
122 lines
4.1 KiB
C++
/*****************************************************************************
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* Copyright (c) 2020, rrcc FM10K-Documentation Contributors
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#pragma once
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#include <cstdint>
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#include <string>
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#include <utility>
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#include <vector>
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#include <unordered_map>
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#include <memory>
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#include <functional>
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#include "AddressOffset.h"
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#include "../Token.h"
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class Declaration;
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namespace Instruction {
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class Instruction {
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protected:
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uint32_t _address{};
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uint32_t _endAddress{};
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public:
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virtual ~Instruction()= default;
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enum class CommandOp : uint8_t {
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WRITE = 0b00000000,
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COPY = 0b01000000,
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LOAD = 0b11000000,
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INIT = 0b11001000,
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CALC = 0b10000000,
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CALC_IMM = 0b10100000,
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BRANCH = 0b11010000,
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POLL = 0b11011000,
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LOOP = 0b11100000,
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JUMP = 0b11101000,
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RETURN = 0b11110000,
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SET = 0b11111000,
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WAIT = 0xFE,
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END = 0xFF
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};
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static std::unique_ptr<Instruction> getCommandForDeclaration(const Declaration &declaration);
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struct parseOperatorResult {
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std::string name;
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uint8_t offset1;
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uint8_t offset2;
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};
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static parseOperatorResult parseOperator(const std::string &op);
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virtual std::vector<uint8_t> toBytes() const = 0;
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virtual size_t getByteSize() const = 0;
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virtual CommandOp getCommand() const = 0;
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void setAddress(uint32_t address){
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_address = address;
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}
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void setEndAddress(uint32_t address){
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_endAddress = address;
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}
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uint32_t getAddress() const {
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return _address;
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}
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uint32_t getEndAddress() const {
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return _endAddress;
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}
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static void addDefaultOperators();
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static void addOperator(const std::string &name, uint32_t minParams, std::function<std::unique_ptr<Instruction>(
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const Instruction::parseOperatorResult &opData,
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const std::vector<Token> &tokens)> callable) {
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knownOperators.push_back({name, minParams, std::move(callable)});
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}
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private:
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struct knownOperator {
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std::string name;
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uint32_t minParams;
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std::function<std::unique_ptr<Instruction>(const Instruction::parseOperatorResult &opData,
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const std::vector<Token> &tokens)> callable;
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};
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static std::vector<struct knownOperator> knownOperators;
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};
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};
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