Starfall321

Oh. Well in that case, I can tell you that in FireRed, it literally just compares the TM's index to the number of HM01 or TM50 (don't remember which) and does a conditional branch. Its literally in that same subroutine with the 3 decimal fix that I just posted.

Hmm, nope. But my hack is FireRed. I have no clue how it works in the Hoenn games. I know the TM pocket is different - for example, FireRed has a key item called the TM Case. RSE is probably different. I don't even know if anyone has done TM expansion in a game outside of FireRed?

Didn't know it wasn't already in the thread. Probably too late to bump.

ROM:08131DB0 ADDS R1, R6, R0
ROM:08131DB2 MOVS R0, R4
ROM:08131DB4 MOVS R2, #2
ROM:08131DB6 MOVS R3, #2
ROM:08131DB8 BL int_to_str

r3 = number of decimal places
Change the move instruction to
mov r3, #0x3

If you don't want the zero padding (something like TM087) for TMs below TM100, you can do a comparison to r1, which contains the decimal number of the TM.