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 srecord(self, record_type, length, address, data = None):
if data is None:
data = []
length += self.offset
address_bytes = utils.int_to_array(address)
checksum = self.checksum(make_list(address_bytes, length, data))
mask = "S%u%02X{0!s}%s%02X".format(self.address_mask)
return mask % (record_type, length, address, Writer.hex_bytes(data), checksum)
def compose_row(self, address, length, row):
checksum = checksums.nibble_sum(
utils.make_list(utils.int_to_array(address), 6, ((length + 5) * 2),
row))
line = "%{0:02X}6{1:02X}{2:04X}{3!s}".format((length + 5) * 2,
checksum, address,
Writer.hex_bytes(row))
return line
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 compose_row(self, address, length, row):
address_checksum = checksums.rotatedXOR(
utils.make_list(utils.int_to_array(address), length), 8,
checksums.ROTATE_LEFT)
data_checksum = checksums.rotatedXOR(row, 8, checksums.ROTATE_LEFT)
line = ":{0:04X}{1:02X}{2:02X}{3}{4:02X}".format(
address, length, address_checksum, Writer.hex_bytes(row),
data_checksum)
self.last_address = address + length
return line
def compose_row(self, address, length, row):
address_checksum = checksums.nibble_sum(
utils.make_list(utils.int_to_array(address), length))
data_checksum = checksums.nibble_sum(row)
line = "/{0:04X}{1:02X}{2:02X}{3!s}{4:02X}".format(
address, length, address_checksum, Writer.hex_bytes(row),
data_checksum)
self.last_address = address + length
return line
def compose_row(self, address, length, row):
tmp = 0 # TODO: format type!?
checksum = checksums.lrc(
utils.make_list(tmp, length + 4, utils.int_to_array(address), row),
8, checksums.COMPLEMENT_TWOS)
if length < self.row_length:
lengthToPad = self.row_length - length
padding = [0] * (lengthToPad)
row.extend(padding)
line = "{0:02X}{1}0000{2:08X}{3}".format(checksum, length - 2, address,
Writer.hex_bytes(row))
return line
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):
if format_type == DATA:
if line.length != len(line.chunk):
raise hexfile.InvalidRecordLengthError(
"Byte count doesn't match length of actual data.")
address_checksum = checksums.rotatedXOR(
utils.make_list(utils.int_to_array(line.address), line.length),
8, checksums.ROTATE_LEFT)
if line.addrChecksum != address_checksum:
raise hexfile.InvalidRecordChecksumError()
data_checksum = checksums.rotatedXOR(line.chunk, 8,
checksums.ROTATE_LEFT)
if line.checksum != data_checksum:
raise hexfile.InvalidRecordChecksumError()
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()
def compose_row(self, address, length, row):
checksum = checksums.lrc(utils.make_list(utils.int_to_array(address), length, row), 16, checksums.COMPLEMENT_NONE)
line = ";{0:02X}{1:04X}{2!s}{3:04X}".format(length, address, Writer.hex_bytes(row), checksum)
return line