This page is intended as a reference for address offsets and formulae for converting codes between different versions of a game (1.0, 1.1 on the same platform, or 1.0, 1.0 on different platforms, etc), so as to provide a centralized list. Without further explanation, I shall add a few. Feel free to contribute.
Playstation (GameShark)
Driver
1.0 to 1.1: add 00000340 0000
1.1 to 1.0: subtract 00000340 0000
Metal Gear Solid
1.0 to 1.1: add 00000008 0000
1.1 to 1.0: subtract 00000008 0000
1.1 to Integral: subtract 00002780 0000
Integral to 1.1: add 00002780 0000
1.0 to Integral: subtract 00002778 0000
Integral to 1.0: add 00002778 0000
Resident Evil 2
Regular Leon to Regular Claire: subtract 00000238 0000
Regular Claire to Regular Leon: add 00000238 0000
Dual Shock Leon to Dual Shock Claire: subtract 0000008C 0000
Dual Shock Claire to Dual Shock Leon: add 0000008C 0000
Regular Claire to Dual Shock Claire: add 00008080 0000
Dual Shock Claire to Regular Claire: subtract 00008080 0000
Regular Leon to Dual Shock Leon: add 00007ED4 0000
Dual Shock Leon to Regular Leon: subtract 00007ED4 0000
Regular Claire to Dual Shock Leon: add 0000801C 0000
Dual Shock Leon to Regular Claire: subtract 0000801C 0000
Regular Leon to Dual Shock Claire: add 00007E48 0000
Dual Shock Claire to Regular Leon: subtract 00007E48 0000