Pasm3/main.cpp at main · pebmeister/Pasm3 · GitHub

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// Written by Paul Baxter

#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <map>
#include <unordered_map>
#include <cstdint>
#include <cctype>
#include <optional>
#include <algorithm>
#include <iomanip>
#include <sstream>
#include <utility>
#include <format>
#include <fstream>
#include <sstream>
#include <exception>
#include <stack>
#include <chrono>
#include <fstream>

#define GEN_RULEMAP
#include "ruletype.h"
#undef GEN_RULEMAP

#define GEN_TOKMAP
#include "tokenkind.h"
#undef GEN_TOKMAP

#include "opcodedict.h"
#include "PasmTokenizer.hpp"
#include "anonymouslabel.h"
#include "multipassassembler.h"
#include "symboltable.h"
#include "sourceManager.h"

#include "getmangledsymbol.h"
#include "opcodeinfo.h"

#include "exprNode.h"
#include "macrodef.h"
#include "utilities.h"
#include "AssemblerParser.h"
#include "options.h"

int main(int argc, char* argv[])
{
    Options options;

    auto arg = 1;

    while(arg < argc) {
        std::string arg_str = std::string(argv[arg]);
        if (arg_str[0] != '-') {
            options.input_filenames.push_back(argv[arg]);
        }
        else if (arg_str == "-o") {
            arg++;
            if (arg >= argc) {
                std::cout << "invalid output file\n";
                return -1;
            }
            options.outfile = argv[arg];
        }
        else if (arg_str == "-c64") {
            options.c64 = true;
        }
        else if (arg_str == "-i") {
            arg++;
            if (arg >= argc) {
                std::cout << "invalid include directory\n";
                return -1;
            }
            options.include.push_back(argv[arg]);
        }
        else if (arg_str == "-st") {
            arg++;
            if (arg >= argc) {
                std::cout << "invalid symbol trace\n";
                return -1;
            }
            options.traced_symbols.push_back(argv[arg]);
        }
        else if (arg_str == "-d") {
            arg++;
            if (arg >= argc) {
                std::cout << "invalid symbol\n";
                return -1;
            }
            std::string sym = argv[arg];
            arg++;
            std::string val = argv[arg];
            int symval;
            std::stringstream ss;
            if (val[0] == '$') {
                ss << std::hex << val.substr(1);
            }
            else {
                ss << std::dec << val;
            }
            ss >> symval;
            options.defined_symbols.push_back({sym, symval} );
        }
        else {
            std::cout << "Unknown option '" << arg_str << "'\n";
            return -1;
        }
        arg++;
    }

    if (options.input_filenames.empty()) {
        std::cout << "No input file specified.\n";
        return 1;
    }

    try {
        std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();

        SourceManager src_mgr;
        PasmTokenizer tokenizer;
        std::unordered_map<std::string, MacroDef> macros_;
        std::vector<AnonymousLabel> anonymous_labels;
        std::vector<PasmTokenizer::Token> tokens;

        for (const auto& root_file : options.input_filenames) {
            auto file_tokens = LoadAndTokenizeFile(root_file, src_mgr, tokenizer);
            tokens.insert(tokens.end(), file_tokens.begin(), file_tokens.end());
        }

        AssemblerParser parser(tokens, options);
        auto statements = parser.ParseProgram(src_mgr, macros_, tokenizer);

        MultiPassAssembler assembler(options);
        assembler.Assemble(statements, anonymous_labels, src_mgr);
        std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();

        std::cout << assembler.listing_file << "\n";

        if (options.outfile.length() > 0) {
            std::ofstream out(options.outfile, std::ios::out | std::ios::binary);
            auto sz = assembler.binary_output.size();
            if (options.c64) {
                auto lo = static_cast<unsigned char>(assembler.load_address & 0xFF);
                auto hi = static_cast<unsigned char>((assembler.load_address >> 8) & 0xFF);
                out.write(reinterpret_cast<const char*>(&lo), sizeof(unsigned char));
                out.write(reinterpret_cast<const char*>(&hi), sizeof(unsigned char));
                sz += 2;
            }
            out.write(reinterpret_cast<const char*>(assembler.binary_output.data()), assembler.binary_output.size());
            out.close();

            std::cout << "Wrote " << sz << " bytes to " << options.outfile << "\n";
        }
        std::chrono::duration<double> elapsed_seconds = end - begin;
        std::cout << "Elapsed time: " << elapsed_seconds.count() << " seconds\n";
    }
    catch (std::exception& ex) {
        std::cerr << "Error " << ex.what() << "\n";
    }
    return 0;
}