Ejemplo n.º 1
0
def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], "h", ["help"])
        filename = args[0][:args[0].find(".")]
        cCommandBase = 0xe000  # 1110 0000 0000 0000

        table = SymbolTable()
        p = Parser(args[0])
        instructionAdress = 0
        ramIndex = 16
        while p.hasMoreCommands():
            if p.commandType() == "L_COMMAND":
                table.addEntry(p.symbol(), instructionAdress)
            else:
                instructionAdress = instructionAdress + 1
        p.close()
        print(table.getTable())

        with open(filename + ".hack", "w") as outputfile:
            # outputfile.write("//Hello world!!")
            p = Parser(args[0])
            code = Code()
            while p.hasMoreCommands():
                # print(p.commandType(), ":", p.advance)
                if p.commandType() == "C_COMMAND":
                    print('%s %s %s' % (p.dest(), p.comp(), p.jump()))
                    instruction = cCommandBase | code.dest(
                        p.dest()) | code.comp(p.comp()) | code.jump(p.jump())
                    outputfile.write('{0:b}'.format(instruction) + "\n")
                elif p.commandType() == "A_COMMAND":
                    if p.symbol().isdigit():
                        outputfile.write('{0:b}'.format(
                            0x8000 | int(p.symbol())).replace("1", "0", 1) +
                                         "\n")
                    elif table.contains(p.symbol()):
                        outputfile.write(
                            '{0:b}'.format(0x8000 | table.getAddress(
                                p.symbol())).replace("1", "0", 1) + "\n")
                    else:
                        table.addEntry(p.symbol(), ramIndex)
                        # print(table.getTable())
                        outputfile.write('{0:b}'.format(
                            0x8000 | ramIndex).replace("1", "0", 1) + "\n")
                        ramIndex = ramIndex + 1
            p.close()
    except Exception as e:
        print(e)
        raise e
Ejemplo n.º 2
0
 def pass1(self, infile, outfile):
     parser = Parser(infile)
     outf = open( outfile, 'w' )
     code = Code()
     while parser.has_more_commands():
         parser.advance()
         cmd = parser.command_type()
         if cmd == parser.A_COMMAND:
             outf.write( code.gen_a(self._get_address(parser.symbol())) + '\n' )
         elif cmd == parser.C_COMMAND:
             outf.write( code.gen_c(parser.dest(), parser.comp(), parser.jmp()) + '\n' )
         elif cmd == parser.L_COMMAND:
             pass
     outf.close()
Ejemplo n.º 3
0
def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], "h", ["help"])
        filename = args[0][:args[0].find(".")]
        cCommandBase = 0xe000  # 1110 0000 0000 0000
        with open(filename + ".hack", "w") as outputfile:
            # outputfile.write("//Hello world!!")
            p = Parser(args[0])
            code = Code()
            while p.hasMoreCommands():
                # print(p.commandType(), ":", p.advance)
                if p.commandType() == "C_COMMAND":
                    print('%s %s %s' % (p.dest(), p.comp(), p.jump()))
                    instruction = cCommandBase | code.dest(
                        p.dest()) | code.comp(p.comp()) | code.jump(p.jump())
                    outputfile.write('{0:b}'.format(instruction) + "\n")
                elif p.commandType() == "A_COMMAND":
                    print(p.symbol())
                    outputfile.write('{0:b}'.format(
                        0x8000 | int(p.symbol())).replace("1", "0", 1) + "\n")
                    # outputfile.write('%x' % int(p.symbol()) + "\n")
    except Exception as e:
        print(e)
        raise e
Ejemplo n.º 4
0
def main():
    args, unknown = parse_args()
    path = os.path.abspath(args.asmfile)

    # Initialize parser
    code = AsmCode()
    table = SymbolTable()

    print("=== LOOP 1 : Create symbol table phase ===")

    index = 0
    parser = Parser(path)
    while parser.has_more_commands():
        parser.advance()
        if parser.command_type() is Command.L:
            table.add_entry(parser.symbol(), index)
            index -= 1
        index += 1

    pprint.pprint(table.table())

    print("=== LOOP 2 output assembler phase ===")

    in_name = os.path.basename(path)  # *.asm
    f = open("{}/{}".format(os.path.dirname(path), os.path.splitext(in_name)[0] + ".hack"), "w")

    # Re-initialize parser
    parser = Parser(path)
    l_index = 16

    while parser.has_more_commands():
        parser.advance()
        # For debugging
        # print("{:>3}: {:<20}{:<20}{:<20}{:<20}{:<20}{:<20}".format(
        #     parser.index,
        #     parser.command,
        #     parser.command_type(),
        #     str(parser.symbol()),
        #     str(parser.dest()) + ": " + code.dest(parser.dest()),
        #     str(parser.comp()) + ": " + code.comp(parser.comp()),
        #     str(parser.jump()) + ": " + code.jump(parser.jump())
        # ))

        if parser.command_type() is Command.A:
            if is_pos_int(parser.symbol()):
                f.write("0" + str(bin(int(parser.symbol())))[2:].zfill(15) + '\n')
            else:
                if table.contains(parser.symbol()):
                    f.write(table.get_address(parser.symbol()) + '\n')
                else:
                    table.add_entry(parser.symbol(), l_index)
                    f.write(table.get_address(parser.symbol()) + '\n')
                    l_index += 1

        elif parser.command_type() is Command.C:
            f.write("111"
                    + code.comp(parser.comp())
                    + code.dest(parser.dest())
                    + code.jump(parser.jump()) + '\n')

    pprint.pprint(table.table())

    f.close()