Mirage Island Seed Offsets
Section 2
RS 0x408
E 0x464
Old post (obsolete):
Since I was looking at how to auto-detect R/S, Emerald and FR/LG saves, I've added auto detection to the program.
It is still text based, but now you can just drag and drop a savefile to the .exe, so no real need to input anything in the command line. The game can still be specified, in which case auto-detection is skipped.
MirageIslandValue v1.7.zip