lif2xml.py

lif2xml.py

import sys

inName = sys.argv[1]

if inName.lower().endswith(".lif"):
    outName = inName[:-3]+"xml"
else:
    outName = inName+".xml"
    inName = inName+".lif"
print("Converting",inName,"to",outName)    

SECTOR_SIZE = 1024
SECTORS_PER_TRACK = 5
SIDES = 2
TRACKS = 80
SPECIAL_TRACK_START = 79
SPECIAL_SECTOR_START = 97
NORMAL_SECTOR_START = 1
    
HEADER = """<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- HxC Floppy Emulator Disk Layout -->
<disk_layout>
	<disk_layout_name>AUTOGENERATEDLAYOUT</disk_layout_name>
	<disk_layout_description>Auto Generated Disk Layout</disk_layout_description>
	<prefered_file_extension>img</prefered_file_extension>
	<interface_mode>GENERIC_SHUGART_DD_FLOPPYMODE</interface_mode>
	<write_protected>0</write_protected>
	<file_size>819200</file_size>
	<layout>
		<number_of_track>80</number_of_track>
		<number_of_side>2</number_of_side>
		<format>IBM_MFM</format>
		<start_sector_id>1</start_sector_id>
		<sector_per_track>5</sector_per_track>
		<sector_size>1024</sector_size>
		<formatvalue>0</formatvalue>
		<gap3>255</gap3>
		<bitrate>500000</bitrate>
		<pregap>0</pregap>
		<rpm>597</rpm>
		<crc32>0x80C0B12B</crc32>
		<track_list>
"""    

TRACK_HEADER = """				<track track_number="%02u" side_number="%u">
				<data_offset>0x%06x</data_offset>
				<format>IBM_MFM</format>
				<sector_list>
"""

SECTOR_DATA = """					<sector sector_id="%u" sector_size="%u">
						<sector_data>%s</sector_data>
						<datamark>0xFB</datamark>
						<data_offset>0x%06x</data_offset>
					</sector>
"""

    
with open(inName, "rb") as inF:
    with open(outName, "w") as outF:
        outF.write(HEADER)
        for track in range(TRACKS):
            for side in range(SIDES):
                trackDataOffset = (track*SIDES*SECTORS_PER_TRACK + side*SECTORS_PER_TRACK) * SECTOR_SIZE
                outF.write(TRACK_HEADER % (track,side,trackDataOffset))
                for sector in range(5):
                    sectorData = inF.read(SECTOR_SIZE)
                    if len(sectorData) == 0:
                        sectorData = SECTOR_SIZE * bytes(b'\xFF')
                    sectorNumber = (SPECIAL_SECTOR_START if track>=SPECIAL_TRACK_START else NORMAL_SECTOR_START) + sector
                    outF.write(SECTOR_DATA % (sectorNumber, SECTOR_SIZE,sectorData.hex(), trackDataOffset + sector * SECTOR_SIZE))
                outF.write("				</sector_list>\n")
                outF.write("				</track>\n")
        outF.write("""		</track_list>
	</layout>
</disk_layout>""")