mirror of
https://github.com/bkerler/edl.git
synced 2024-11-14 19:14:58 -05:00
57 lines
No EOL
1.5 KiB
Python
Executable file
57 lines
No EOL
1.5 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
# (c) B.Kerler 2019-2023 under GPLv3 license
|
|
# If you use my code, make sure you refer to my name
|
|
#
|
|
# !!!!! If you use this code in commercial products, your product is automatically
|
|
# GPLv3 and has to be open sourced under GPLv3 as well. !!!!!
|
|
# TXT to EDL Loader (c) B.Kerler 2023
|
|
|
|
import os,sys
|
|
from struct import unpack
|
|
|
|
def main():
|
|
if len(sys.argv)<2:
|
|
print("Usage: ./txt_to_loader.py [log.txt] [loader.elf]")
|
|
sys.exit(0)
|
|
with open(sys.argv[1],"rb") as rf:
|
|
data=bytearray()
|
|
for line in rf.readlines():
|
|
if line[0]==0x20:
|
|
tt=line.split(b" ")[:-1]
|
|
tt=tt[1:17]
|
|
xx=b"".join(tt)
|
|
data.extend(bytes.fromhex(xx.decode('utf-8')))
|
|
|
|
outdata=bytearray()
|
|
i=0
|
|
seq=b"\x03\x00\x00\x00\x14\x00\x00\x00\x0D\x00\x00\x00"
|
|
with open(sys.argv[2], "wb") as wf:
|
|
while True:
|
|
idx=data.find(seq)
|
|
if idx==-1:
|
|
if i==0:
|
|
seq=b"\x12\x00\x00\x00\x20\x00\x00\x00\x0D\x00\x00\x00\x00\x00\x00\x00"
|
|
i+=1
|
|
continue
|
|
else:
|
|
break
|
|
else:
|
|
cmd=unpack("<I", data[idx:idx+4])[0]
|
|
if cmd==0x03:
|
|
cmd,tlen,slen,offset,length=unpack("<IIIII",data[idx:idx+0x14])
|
|
elif cmd==0x12:
|
|
cmd, tlen, slen, offset, length = unpack("<IIQQQ", data[idx:idx + 0x20])
|
|
data = data[idx + 0x20:]
|
|
print("Offset : %08X Length: %08X" %(offset,length))
|
|
while len(outdata)<offset+length:
|
|
outdata.append(0xFF)
|
|
outdata[offset:offset+length]=data[:length]
|
|
i+=1
|
|
data = data[length:]
|
|
wf.write(outdata)
|
|
|
|
print("Done.")
|
|
|
|
if __name__=="__main__":
|
|
main() |