Assembly code generator for Windows 64-bit

src/Instruction.hpp

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+/*
+Copyright (c) 2018 tevador
+
+This file is part of RandomX.
+
+RandomX is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+RandomX is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with RandomX.  If not, see<http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include <cstdint>
+#include <iostream>
+
+namespace RandomX {
+
+	class Instruction {
+	public:
+		uint8_t opcode;
+		uint8_t loca;
+		uint8_t rega;
+		uint8_t locb;
+		uint8_t regb;
+		uint8_t locc;
+		uint8_t regc;
+		uint8_t imm0;
+		uint32_t addr0;
+		union {
+			uint32_t addr1;
+			int32_t imm1;
+		};
+		const char* getName() const {
+			return names[opcode];
+		}
+		friend std::ostream& operator<<(std::ostream& os, const Instruction& i) {
+			i.print(os);
+			return os;
+		}
+	private:
+		void print(std::ostream&) const;
+		static const char* names[256];
+	};
+
+	static_assert(sizeof(Instruction) == 16, "Invalid alignment of struct Instruction");
+
+}