Exemple #1
0
 def _parse_ctl_line(self, line, entry_addresses):
     ctl = start = end = text = asm_directive = None
     lengths = ()
     first_char = line[0]
     content = line[1:].lstrip()
     if first_char in '.:':
         ctl = first_char
         text = line[2:].rstrip()
     elif content:
         if first_char in ' >bBcCDEgiLMNRsStTuwW':
             fields = split_unquoted(content, ' ', 1)
             params = split_unquoted(fields[0], ',')
             try:
                 start = get_int_param(params[0])
             except ValueError:
                 raise CtlParserError("invalid address")
             ctl = first_char
             if ctl == ' ':
                 index = bisect.bisect_right(entry_addresses, start) - 1
                 if index < 0:
                     raise CtlParserError(
                         "blank directive with no containing block")
                 entry_ctl = self._ctls[entry_addresses[index]]
                 if entry_ctl in 'cstw':
                     ctl = entry_ctl.upper()
                 else:
                     ctl = 'B'
             try:
                 int_params = parse_params(ctl, params[1:])
             except ValueError:
                 raise CtlParserError("invalid integer")
             if int_params:
                 if ctl not in '>BCLMSTW':
                     raise CtlParserError("extra parameters after address")
                 length = int_params[0]
                 if length:
                     end = start + length
             lengths = int_params[1:]
             if ctl == 'L':
                 if end is None:
                     raise CtlParserError("loop length not specified")
                 if not lengths[0][0]:
                     raise CtlParserError("loop count not specified")
             if len(fields) > 1:
                 text = fields[1]
         elif first_char == '@':
             asm_directive = self._parse_asm_directive(content)
         elif first_char not in '#%;':
             raise CtlParserError("invalid directive")
     return ctl, start, end, text, lengths, asm_directive
Exemple #2
0
 def _parse_ctl_line(self, line, entry_addresses):
     ctl = start = end = text = asm_directive = None
     lengths = ()
     first_char = line[0]
     content = line[1:].lstrip()
     if first_char in '.:':
         ctl = first_char
         text = line[2:].rstrip()
     elif content:
         if first_char in ' >bBcCDEgiLMNRsStTuwW':
             fields = split_unquoted(content, ' ', 1)
             params = split_unquoted(fields[0], ',')
             try:
                 start = get_int_param(params[0])
             except ValueError:
                 raise CtlParserError("invalid address")
             ctl = first_char
             if ctl == ' ':
                 index = bisect.bisect_right(entry_addresses, start) - 1
                 if index < 0:
                     raise CtlParserError("blank directive with no containing block")
                 entry_ctl = self._ctls[entry_addresses[index]]
                 if entry_ctl in 'cstw':
                     ctl = entry_ctl.upper()
                 else:
                     ctl = 'B'
             try:
                 int_params = parse_params(ctl, params[1:])
             except ValueError:
                 raise CtlParserError("invalid integer")
             if int_params:
                 if ctl not in '>BCLMSTW':
                     raise CtlParserError("extra parameters after address")
                 length = int_params[0]
                 if length is not None:
                     end = start + length
             lengths = int_params[1:]
             if ctl == 'L':
                 if end is None:
                     raise CtlParserError("loop length not specified")
                 if not lengths:
                     raise CtlParserError("loop count not specified")
             if len(fields) > 1:
                 text = fields[1]
         elif first_char == '@':
             asm_directive = self._parse_asm_directive(content)
         elif first_char not in '#%;':
             raise CtlParserError("invalid directive")
     return ctl, start, end, text, lengths, asm_directive
Exemple #3
0
    def _parse_instruction(self, line):
        ctl = line[0]
        lengths = []
        if line[1] == ';':
            inst_ctl = None
            start = None
            i = line.find(' ', 2)
            if i < 0:
                i = len(line.rstrip())
            comment_index = get_int_param(line[2:i])
        else:
            inst_ctl = line[1]
            if inst_ctl == 'I':
                i = find_unquoted(line.rstrip(), ' ', 2)
                address_end = j = find_unquoted(line, ';', 2, i)
            else:
                address_end = line.index(',', 2)
                i = find_unquoted(line.rstrip(), ' ', address_end + 1)
                j = find_unquoted(line, ';', address_end + 1, i)
            start = get_int_param(line[2:address_end])
            if j == i:
                comment_index = -1
            else:
                comment_index = get_int_param(line[j + 1:i])
            if j > address_end + 1:
                params = split_unquoted(line[address_end + 1:j], ',')
                lengths = parse_params(inst_ctl, params, 0)
            elif inst_ctl != 'I':
                raise ValueError

        comment = line[i:].strip()
        return ctl, inst_ctl, start, lengths, comment_index, comment
Exemple #4
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def split_operands(text):
    """Split a comma-separated list of operands.

    :param text: The operands.
    :return: A list of individual operands.
    """
    return [e.strip() for e in split_unquoted(text, ',')]
Exemple #5
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    def _parse_instruction(self, line):
        ctl = line[0]
        lengths = []
        if line[1] == ';':
            inst_ctl = None
            start = None
            i = line.find(' ', 2)
            if i < 0:
                i = len(line.rstrip())
            comment_index = get_int_param(line[2:i])
        else:
            inst_ctl = line[1]
            if inst_ctl == 'I':
                i = find_unquoted(line.rstrip(), ' ', 2)
                address_end = j = find_unquoted(line, ';', 2, i)
            else:
                address_end = line.index(',', 2)
                i = find_unquoted(line.rstrip(), ' ', address_end + 1)
                j = find_unquoted(line, ';', address_end + 1, i)
            start = get_int_param(line[2:address_end])
            if j == i:
                comment_index = -1
            else:
                comment_index = get_int_param(line[j + 1:i])
            if j > address_end + 1:
                params = split_unquoted(line[address_end + 1:j], ',')
                lengths = parse_params(inst_ctl, params, 0)
            elif inst_ctl != 'I':
                raise ValueError

        comment = line[i:].strip()
        return ctl, inst_ctl, start, lengths, comment_index, comment
Exemple #6
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def split_operation(operation, tidy=False):
    if tidy:
        operation = convert_case(operation, False, True)
    elements = operation.split(None, 1)
    if len(elements) < 2:
        return elements
    elements[1:] = split_unquoted(elements[1], ',')
    return [e.strip() for e in elements]
Exemple #7
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def split_operation(operation, tidy=False):
    if tidy:
        operation = convert_case(operation, False, True)
    elements = operation.split(None, 1)
    if len(elements) < 2:
        return elements
    elements[1:] = split_unquoted(elements[1], ',')
    return [e.strip() for e in elements]
Exemple #8
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def _parse_sublengths(spec, subctl, default_prefix):
    length = 0
    lengths = []
    if subctl == 'C':
        sublengths = [spec]
    else:
        sublengths = split_unquoted(spec, ':')
    for num in sublengths:
        sublength, prefix = _parse_length(num, subctl, default_prefix)
        lengths.append((sublength, prefix))
        length += sublength
    if len(lengths) == 1 and prefix is None:
        return (length, ((length, None),))
    if subctl == 'S':
        length = lengths[0][0]
    return (length, tuple(lengths))
Exemple #9
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def _parse_sublengths(spec, subctl, default_prefix):
    length = 0
    lengths = []
    if subctl == 'C':
        sublengths = [spec]
    else:
        sublengths = split_unquoted(spec, ':')
    for num in sublengths:
        sublength, prefix = _parse_length(num, subctl, default_prefix)
        lengths.append((sublength, prefix))
        length += sublength
    if len(lengths) == 1 and prefix is None:
        return (length, ((length, None), ))
    if subctl == 'S':
        length = lengths[0][0]
    return (length, tuple(lengths))
Exemple #10
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def _parse_sublengths(spec, subctl, default_base):
    length = 0
    lengths = []
    if subctl == 'C':
        sublengths = [spec]
    else:
        sublengths = split_unquoted(spec, ':')
    required = True
    for num in sublengths:
        sublength, base = _parse_length(num, default_base, required)
        lengths.append((sublength, base))
        if required or sublength:
            length += sublength
        required = subctl != 'S'
    if subctl == 'S':
        length = lengths[0][0]
    return (length, tuple(lengths))