Lab Processor Tikhoniuk

#include <iostream>
#include <fstream>
#include <bitset>
#include <cassert>
#include <conio.h>

//2 address
constexpr int BITS = 22, BYTES = (BITS + 7) / 8;;
using WORD = uint32_t;

WORD print_and_return_idk(WORD v) {
    WORD res = 0;
    for(int i = BYTES - 1; i >= 0; --i) {
        for(int j = 7; j >= 0; --j)
            std::cout << (v >> (8 * i + j) & 1);

        auto val = v >> (8 * i) & 0xFF;
        assert(val <= 9);
        res += val;
        std::cout << "(" << val << ") ";
    }
    std::cout << "\n";
    return res;
}

int main() {
    std::ifstream file("commands.txt");
    std::string command, arg1, arg2;

    WORD R1 = 0, R2 = 0, PC = 0, TC, PS = 0;

    auto val = [&](std::string_view s) {
        if (s == "R1")
            return R1;
        if (s == "R2")
            return R2;
        if (s == "PC")
            return PC;
        if (s == "TC")
            return TC;
        if (s == "PS")
            return PS;
        if (s.starts_with('L')) {
            s.remove_prefix(1);
            auto num = std::stoull(std::string{s});
            WORD res = 0;
            for(int i = 0; num; ++i, num /= 10) {
                assert(i < BYTES);
                res |= (num % 10) << (8 * i);
            }
            assert(res < (1ULL << BITS));
            return res;
        }
        auto res = std::stoll(std::string{s});
        if (res < 0)
            res += 1ULL << BITS;
        assert(res >= 0);
        return WORD(res);
    };

    auto ref = [&](std::string_view s) -> WORD& {
        if (s == "R1")
            return R1;
        if (s == "R2")
            return R2;
        if (s == "PC")
            return PC;
        if (s == "TC")
            return TC;
        if (s == "PS")
            return PS;
        assert(false);
    };

    auto dump = [&]() {
        std::cout << "PC = " << PC << " TC = " << TC << "\n";
        std::cout << "IR = " << command << " | " << arg1 << " | " << arg2 << "\n";
        std::cout << "R1 = " << std::bitset<BITS>(R1) << " R2 = " << std::bitset<BITS>(R2) << "\n";
        std::cout << "PS = " << PS << "\n\n\n";
    };

    while(file >> command >> arg1 >> arg2) {
        getch();
        TC = 1;
        dump();

        getch();
        TC = 2;
        if (command == "mov")
            ref(arg1) = val(arg2);
        else if (command == "IDK") {
            std::cout << arg1 << " = ";
            auto sum = print_and_return_idk(val(arg1));
            sum %= val(arg2);
            ref(arg1) = sum;
        }

        PS = val(arg1) >> (BITS - 1);
        dump();
        ++PC;
    }
    getch();
}