dis.cpp

#include <iostream>
#include <exception>
#include <stdexcept>
#include "assembler.h"
#include "disassembler.h"

using namespace std;

int main(int argc, char *argv[]) {
    try {
        string filename, type, outputfile;
        ostream *out;
        argv++;
        argc--;
        if ( argc % 2 ) {
            throw invalid_argument("Invalid Arguments!");
        } else {
            map<char, string> arg_map;
            for (int i = 0; i < argc; i+=2) {
                if (argv[i][0] != '-') {
                    throw invalid_argument("Option should start with '-'!");
                }
                arg_map[argv[i][1]] = argv[i+1];
            }
            // -o (outputfilename) -f (filename)
            if ( arg_map.count('f') ) {
                filename = arg_map['f'];
            } else {
                throw invalid_argument("File should be specified with -f filename.");
            }
            if ( arg_map.count('o') ) {
                outputfile = arg_map['o'];
                out = new ofstream(outputfile, ios::out);
            } else {
                out = &cout;
            }
        }

        fstream fin(filename, ios::in);
        fin >> setbase(0);
        fin.exceptions(fin.failbit);

        unsigned int a = 0;
        vector<unsigned int> inst;
        while(fin >> a) {
            inst.push_back(a);
        }
        Disassembler D(inst);
        D.reverse();
        D.print(*out);

    } catch (exception &err) {
        cerr << err.what() << endl;
    }

    return 0;
}