#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <stdio.h>
#include <iomanip>
#include <cmath>
#include <sstream>
#include <cstring>

using namespace std;


template <class N> N ToNumber(string string_number) {
    N number;
    istringstream iss(string_number);
    iss >> number;
    return number;
}



string ReverseString(string str) {
    string new_string = "";
    for(int i=(str.length()-1); i>=0; i--)
        new_string += str.at(i);
    return new_string;
}




string binary(int num) {
    int coefficient = -1, numerator  = num;
    string binary="";
    string result="";

    if(num <=7) {
        result= "";
        if(num <=3) {
            result="0";
            if(num <=1) {
                result="00";
            }
        }
    }
    while(coefficient != 0) {
        binary += to_string(numerator % 2);
        coefficient = numerator / 2;
        numerator = coefficient;
    }
    binary =  ReverseString(binary);
    result+=binary;
    return result;
}



string printWords(string str) {
    string word;
    stringstream iss(str);

    while (iss >> word)
        cout<<word<<endl;
    cout<<endl;
    return word;
}


// convert string n to dicimal
int convertBinaryToDecimal(string  n) {
    string reverse = ReverseString(n);
    char cstr[n.size()];
    strcpy(cstr, reverse.c_str());
    unsigned int decimalNumber = 0, i = 0, remainder;
    while (i!=sizeof(cstr)) {
        remainder = (int)cstr[i] -48;
        // cout<<decimalNumber <<endl;
        decimalNumber += (remainder*(pow(2,i)));
        // cout<<i <<endl;
        // cout<<decimalNumber <<endl;
        // cout<<endl;
        ++i;
    }
    return decimalNumber;
}

int main() {

    std::vector<string> ans (31);

    int number1;

    int number2;

    int number3;

    int number4;

    string inst;

/// test input
    cout << "input your instruction :";
    cin >> inst;
    if(inst =="add" || inst =="nand") {

        cout << "input your rd :";
        cin  >>number1;
        while(number1 >= 8) {
            cout << "rd must least than 8";
            cout << endl;
            cout << "input your rd :";
            cin >> number1;
        }

        cout << "input your rs :";
        cin  >>number2;
        while(number2 >= 8) {
            cout << "rs must least than 8";
            cout << endl;
            cout << "input your rs :";
            cin >> number2;
        }

        cout << "input your rt :";
        cin  >>number3;
        while(number3 >= 8) {
            cout << "rt must least than 8";
            cout << endl;
            cout << "input your rt :";
            cin >> number3;
        }


        for(int j =0; j<7 ; j++) {   //fill 0 25-31
            ans.push_back("0");
        }
        if(inst =="add") {

            ans.push_back("000"); //opcode =000
        }
        if(inst =="nand") {
            ans.push_back("001"); // opcode =001
        }
        ans.push_back(binary(number3));
        ans.push_back(binary(number2));

        for(int i =0; i<13 ; i++) {
            ans.push_back("0");
        }
        ans.push_back(binary(number1));

    }
    if(inst =="jalr" ) { // j-type

        cout << "input your rd :";
        cin  >>number1;
        while(number1 >= 8) {
            cout << "rd must least than 8";
            cout << endl;
            cout << "input your rd :";
            cin >> number1;
        }

        cout << "input your rs :";
        cin  >>number2;
        while(number2 >= 8) {
            cout << "rs must least than 8";
            cout << endl;
            cout << "input your rs :";
            cin >> number2;
        }

        cout << "input your rt :";
        cin  >>number3;
        while(number3 >= 8) {
            cout << "rt must least than 8";
            cout << endl;
            cout << "input your rt :";
            cin >> number3;
        }

        for(int j =0; j<7 ; j++) {   //fill 0 25-31
            ans.push_back("0");
        }
        ans.push_back("101");// opcode=101
        ans.push_back(binary(number3));
        ans.push_back(binary(number1));
        for(int i =0; i<16 ; i++) {
            ans.push_back("0");
        }

    }
    if(inst == "halt" || inst =="noop") {
        for(int j =0; j<7 ; j++) {   //fill 0 25-31
            ans.push_back("0");
        }
        if(inst == "halt") {
            ans.push_back("110");// opcode=110
        }
        if(inst == "noop") {
            ans.push_back("111");// opcode=111
        }
        for(int i =0; i<22 ; i++) {
            ans.push_back("0");
        }

    }
    if(inst == "lw" || inst =="sw" || inst == "beq") {


        cout << "input your rs :";
        cin  >>number2;
        while(number2 >= 8) {
            cout << "rs must least than 8";
            cout << endl;
            cout << "input your rs :";
            cin >> number2;
        }

        cout << "input your rt :";
        cin  >>number3;
        while(number3 >= 8) {
            cout << "rt must least than 8";
            cout << endl;
            cout << "input your rt :";
            cin >> number3;
        }

        cout << "input your im :";
        cin  >>number4;
        while(number4 >= 32768 || number4 <= -32769) {
            cout << "wrong im";
            cout << endl;
            cout << "input your im :";
            cin >> number4;
        }


        for(int j =0; j<7 ; j++) {   //fill 0 25-31
            ans.push_back("0");
        }
        if(inst == "lw") {
            ans.push_back("010");// opcode=010
        }
        if(inst == "sw") {
            ans.push_back("011");// opcode=011
        }
        if(inst == "beq") {
            ans.push_back("100");// opcode=100
        }
        ans.push_back(binary(number2));
        ans.push_back(binary(number3));
        if(number4 < 0) {
            int con = number4 * (-1);
            con = con - 1;
            string neg;
            string im = (binary(con));
            ans.push_back("1");
            if(binary(con).length()<15) {
                for(int i=14 ; i>=binary(con).length() ; i--) {
                    ans.push_back("1");
                }
            }

            for(int i=0 ; i <= im.length() ; i++) {
                if(im.substr(i,1) == "0") {
                    neg += '1';
                } else if(im.substr(i,1) == "1") {
                    neg += '0';
                }
            }
            ans.push_back(neg);

        }
        if(number4 >= 0) {
            ans.push_back("0");
            if(binary(number4).length()<15) {
                for(int i=14 ; i>=binary(number4).length() ; i--) {
                    ans.push_back("0");
                }
            }
            ans.push_back(binary(number4));
        }

    }


    string ansz;
    int int_ans;
    for(int i =0; i<ans.size() ; i++) { // print out the result!!
        ansz+= ans.at(i);
    }

    cout <<ansz;
    cout <<endl;
    ans.clear();
    cout <<endl;
    int_ans= convertBinaryToDecimal(ansz);
    cout << ansz.length();
    cout <<endl;



    cout << int_ans;
    cout << endl;

    ifstream file("C:/Users/LuckyCat/Desktop/jom/comarch_prot/test1.txt");
    string str;
    while (std::getline(file, str)) {
        printWords(str);
    }


    return 0;
}