/*
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 <ostream>
#include "common.hpp"
#include "instruction.hpp"
#include "blake2/endian.h"

namespace randomx {

	struct ProgramConfiguration {
		uint64_t eMask[2];
		uint32_t readReg0, readReg1, readReg2, readReg3;
	};

	class Program {
	public:
		Instruction& operator()(int pc) {
			return programBuffer[pc];
		}
		friend std::ostream& operator<<(std::ostream& os, const Program& p) {
			p.print(os);
			return os;
		}
		uint64_t getEntropy(int i) {
			return load64(&entropyBuffer[i]);
		}
		uint32_t getSize() {
			return RANDOMX_PROGRAM_SIZE;
		}
	private:
		void print(std::ostream& os) const {
			for (int i = 0; i < RANDOMX_PROGRAM_SIZE; ++i) {
				auto instr = programBuffer[i];
				os << instr;
			}
		}
		uint64_t entropyBuffer[16];
		Instruction programBuffer[RANDOMX_PROGRAM_SIZE];
	};

	static_assert(sizeof(Program) % 64 == 0, "Invalid size of class randomx::Program");
}