Pokemon Fire Red Exp Multiplier X2 Link

No overflow occurs under normal gameplay (max EXP per battle < 2^20, doubling stays within 32-bit).

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| Pokémon defeated | Base EXP | Normal gain | With 2× patch | |----------------|----------|-------------|----------------| | Rattata (Lv.3) | 45 | 45 | 90 | | Pidgey (Lv.5) | 55 | 55 | 110 | | Trainer battle | 400 | 400 | 800 | pokemon fire red exp multiplier x2

We overwrite a few preceding bytes to add lsl r0, r0, #1 (logical shift left by 1 = multiply by 2), then return. No overflow occurs under normal gameplay (max EXP

1. Objective To modify the game code of Pokémon Fire Red (USA, Rev 1) so that any experience points (EXP) earned after a battle are automatically doubled before being added to a Pokémon’s total EXP. Objective To modify the game code of Pokémon