def checkLine(self, line, formatType):
if formatType == DATA:
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError("Byte count doesn't match length of actual data.")
addressChecksum = checksums.rotatedXOR(utils.makeList(utils.intToArray(line.address), line.length), 8, checksums.ROTATE_LEFT)
if line.addrChecksum != addressChecksum:
raise hexfile.InvalidRecordChecksumError()
dataChecksum = checksums.rotatedXOR(line.chunk, 8, checksums.ROTATE_LEFT)
if line.checksum != dataChecksum:
raise hexfile.InvalidRecordChecksumError()
def check_line(self, line, format_type):
if format_type == DATA:
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError(
"Byte count doesn't match length of actual data.")
addrChecksum = 0
address_checksum = checksums.nibble_sum(
utils.make_list(utils.int_to_array(line.address), line.length))
if line.addrChecksum != address_checksum:
raise hexfile.InvalidRecordChecksumError()
checksum = checksums.nibble_sum(line.chunk)
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
def check_line(self, line, format_type):
# todo: Fkt.!!!
if format_type in (S0, S1, S5, S9):
checksum_of_address = (
(line.address & 0xff00) >> 8) + (line.address & 0xff)
elif format_type in (S2, S8):
checksum_of_address = ((line.address & 0xff0000) >> 16) + (
(line.address & 0xff00) >> 8) + (line.address & 0xff)
elif format_type in (S3, S7):
checksum_of_address = (((line.address & 0xff000000) >> 24) +
((line.address & 0xff0000) >> 16) +
((line.address & 0xff00) >> 8) +
(line.address & 0xff))
else:
raise TypeError("Invalid format type '{0!s}'.".format(format_type))
if hasattr(line, 'chunk'):
checksum = (~(sum([line.length, checksum_of_address]) +
sum(line.chunk))) & 0xff
else:
checksum = (~(sum([line.length, checksum_of_address]))) & 0xff
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
line.length -= BIAS[format_type] # calculate actual data length.
if hasattr(
line,
'chunk') and line.length and (line.length != len(line.chunk)):
raise hexfile.InvalidRecordLengthError(
"Byte count doesn't match length of actual data.")
def check_line(self, line, format_type):
if format_type == DATA:
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError("Byte count doesn't match length of actual data.")
checksum = checksums.lrc(utils.make_list(utils.int_to_array(line.address), line.length, line.chunk), 16, checksums.COMPLEMENT_NONE)
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
def check_line(self, line, format_type):
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError("Byte count doesn't match length of actual data.")
# todo: factor out checksum calculation from line!!!
checksum = (sum(line.chunk) & 0xffff)
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
def checkLine(self, line, formatType):
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError(
"Byte count doesn't match length of actual data.")
checksum = checksums.lrc(
utils.makeList(line.type, line.length,
utils.intToArray(line.address), line.chunk), 8,
checksums.COMPLEMENT_TWOS)
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
def check_line(self, line, format_type):
if format_type == DATA:
line.length = (line.length / 2) - 5
checksum = checksums.nibble_sum(
utils.make_list(utils.int_to_array(line.address), 6,
((line.length + 5) * 2), line.chunk))
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError(
"Byte count doesn't match length of actual data.")
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
elif format_type == SYMBOL:
checksum = checksums.nibble_sum(
utils.make_list(3, ((line.length + 5) * 2),
[ord(b) for b in line.chunk]))
chunk = line.chunk.strip()
address = int(chunk[-4:], 16)
line.address = address
def check_line(self, line, format_type):
if format_type == EOF:
return True
line.length -= 4
if line.length != len(line.chunk):
line.chunk = line.chunk[:line.length] # Cut padding.
if format_type == DATA_ABS:
tmp = 0
self.last_address = line.address + line.length
elif format_type == DATA_INC:
tmp = 1
line.address = self.last_address
elif format_type == DATA_REL:
self.error("relative adressing not supported.")
tmp = 2
else:
self.error("Invalid format type: '{0}'".format(format_type))
tmp = 0
checksum = checksums.lrc(
utils.make_list(tmp, line.length + 4,
utils.int_to_array(line.address), line.chunk), 8,
checksums.COMPLEMENT_TWOS)
if line.checksum != checksum:
raise hexfile.InvalidRecordChecksumError()
