mirror of
https://github.com/bkerler/edl.git
synced 2024-11-15 03:25:03 -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
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# -*- coding: utf-8 -*-
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# (c) B.Kerler 2019-2023 under GPLv3 license
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# If you use my code, make sure you refer to my name
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#
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# !!!!! If you use this code in commercial products, your product is automatically
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# GPLv3 and has to be open sourced under GPLv3 as well. !!!!!
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# TXT to EDL Loader (c) B.Kerler 2023
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import os,sys
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from struct import unpack
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def main():
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if len(sys.argv)<2:
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print("Usage: ./txt_to_loader.py [log.txt] [loader.elf]")
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sys.exit(0)
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with open(sys.argv[1],"rb") as rf:
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data=bytearray()
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for line in rf.readlines():
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if line[0]==0x20:
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tt=line.split(b" ")[:-1]
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tt=tt[1:17]
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xx=b"".join(tt)
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data.extend(bytes.fromhex(xx.decode('utf-8')))
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outdata=bytearray()
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i=0
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seq=b"\x03\x00\x00\x00\x14\x00\x00\x00\x0D\x00\x00\x00"
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with open(sys.argv[2], "wb") as wf:
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while True:
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idx=data.find(seq)
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if idx==-1:
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if i==0:
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seq=b"\x12\x00\x00\x00\x20\x00\x00\x00\x0D\x00\x00\x00\x00\x00\x00\x00"
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i+=1
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continue
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else:
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break
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else:
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cmd=unpack("<I", data[idx:idx+4])[0]
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if cmd==0x03:
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cmd,tlen,slen,offset,length=unpack("<IIIII",data[idx:idx+0x14])
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elif cmd==0x12:
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cmd, tlen, slen, offset, length = unpack("<IIQQQ", data[idx:idx + 0x20])
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data = data[idx + 0x20:]
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print("Offset : %08X Length: %08X" %(offset,length))
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while len(outdata)<offset+length:
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outdata.append(0xFF)
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outdata[offset:offset+length]=data[:length]
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i+=1
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data = data[length:]
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wf.write(outdata)
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print("Done.")
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if __name__=="__main__":
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main() |