SummerCart64/sw/bootloader/tools/finalize.py
2023-01-30 05:55:15 +01:00

51 lines
1.1 KiB
Python

#!/usr/bin/env python3
import subprocess
import sys
if __name__ == '__main__':
if (len(sys.argv) != 2):
print(f'Usage: python {sys.argv[0]} file_path')
sys.exit(1)
ALIGN = 1024
CHECKSUM_SIZE = 0x101000
bin_file = sys.argv[1]
try:
bin_data = b''
with open(bin_file, 'rb') as f:
bin_data = f.read()
pad_size = CHECKSUM_SIZE - len(bin_data)
if (pad_size > 0):
bin_data += b'\xFF' * pad_size
with open(bin_file, 'wb') as f:
f.write(bin_data)
subprocess.run(['chksum64', bin_file])
with open(bin_file, 'rb') as f:
bin_data = f.read()
bin_data = bin_data.strip(b'\xFF')
modulo = len(bin_data) % ALIGN
if (modulo > 0):
bin_data += b'\xFF' * (ALIGN - modulo)
with open(bin_file, 'wb') as f:
f.write(bin_data)
except FileNotFoundError as e:
print(f'Couldn\'t open file "{bin_file}" {e}')
sys.exit(2)
except Exception as e:
print(e)
sys.exit(3)