Hi,
I am a newbie. I just bought a 1300 IS (IXUS105) and would like to learn how to port it. I have some programming language but actually the disassembling part seems to damn me.

If I load my diskboot.bin, I am noticing the address are like: SEGO:xxxxx and in your screenshot I see ROM:xxxxx
1. What is explaining the difference?
2. I tried both suggest address higher in this thread: FF810000 or FF010000
Is it any walkthrough to learn how to do the job?
Thanks