Courtesy of @Brendor
Video Demo: Arms Scroll for FE7
[3:19:27 AM | Edited 3:19:38 AM] Crazy Colorz: And could you document where you branched to make the box that says “Weapon Level increased”?
[3:19:41 AM] The Mighty Brendor: That was easy
[3:19:53 AM] Crazy Colorz: Because I had a hard time trying to figure out where to branch
[3:19:55 AM] The Mighty Brendor: Real easy
[3:20:01 AM] The Mighty Brendor: Ok
[3:20:01 AM] Crazy Colorz: Tracing the Branch Calls of Using a Stat-Up Item(FE7)
[3:20:04 AM] Crazy Colorz: So how did you do it?
[3:20:16 AM] The Mighty Brendor: It took me a while to figure out
[3:20:23 AM] The Mighty Brendor: But it’s really easy
[3:20:58 AM] The Mighty Brendor: you start by loading the desired text ID into r5
[3:22:19 AM] The Mighty Brendor: Then the game natively bl’s to 0x802CE54 but if you’re past 0x9000000 you have to load 0x802CE55 into r0 and bx it
[3:22:25 AM] The Mighty Brendor: And that’s it
[3:24:21 AM] The Mighty Brendor: That only works if you successfully make it a stat boost item though
[3:24:27 AM] Crazy Colorz: And I assume the weapon icon is displayed to the left by default, too?
[3:24:34 AM] The Mighty Brendor: Yes