Tuesday, July 22, 2014

Universal IPS Patcher

In 2003, Steve Nickolas wrote an IPS Patcher in C and compiled AmigaOS binary.
I made some changes so it makes patches goes to new file but not writing to original file.

Source+binary(Win32 TCC compiled):

Change log:
[140722] Fixed "0x454F46 (EOF) offset bug"
[140722] Added IPS Maker (ported from IPSexe)
[140722] New IPS Patcher and Maker for beyond 16MB records (named "IPS2", same method as IPS, but incompatible with original IPS because of IPS specification limits)
 Modification details:
 - Changed Header to '_PATCH' (6 bytes) to avoid misdetection by other IPS patchers
 - Changed Offset to 4 Bytes (same encoding as IPS, but keeping Most Significant Byte which original IPS format drops)
 - Changed EOF mark to '_EOF' (4 bytes) to fit Offset size change

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