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 on one platform, 1.0 on another platform, 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