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Melefo
61 lines
1.1 KiB
C++
61 lines
1.1 KiB
C++
//
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// Created by anonymus-raccoon on 3/25/20.
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//
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#ifndef COMSQUARE_INSTRUCTION_HPP
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#define COMSQUARE_INSTRUCTION_HPP
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#include <string>
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#include "../Models/Int24.hpp"
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namespace ComSquare::CPU
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{
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class CPU;
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//! @brief Different addressing modes that instructions can use for the main CPU.
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enum AddressingMode {
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Implied,
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Immediate8bits,
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Immediate16bits,
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ImmediateForA,
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ImmediateForX,
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Absolute,
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AbsoluteLong,
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DirectPage,
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DirectPageIndirect,
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DirectPageIndirectLong,
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AbsoluteIndexedByX,
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AbsoluteIndexedByXLong,
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AbsoluteIndexedByY,
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DirectPageIndexedByX,
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DirectPageIndexedByY,
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DirectPageIndirectIndexedByX,
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DirectPageIndirectIndexedByY,
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DirectPageIndirectIndexedByYLong,
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StackRelative,
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StackRelativeIndirectIndexedByY,
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AbsoluteIndirect,
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AbsoluteIndirectIndexedByX,
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AbsoluteIndirectLong
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};
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//! @brief Struct containing basic information about instructions.
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struct Instruction {
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int (CPU::*call)(uint24_t valueAddr, AddressingMode mode) = nullptr;
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int cycleCount = 0;
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std::string name = "";
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AddressingMode addressingMode = Implied;
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int size = 0;
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};
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}
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#endif //COMSQUARE_INSTRUCTION_HPP
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