Source · Code · decompilation

fireemblem6j: decompilation of Fire Emblem: The Binding Blade

FireEmblemUniverse contributors. 2026. “fireemblem6j: decompilation of Fire Emblem: The Binding Blade.” FireEmblemUniverse. Commit e83dd39.

Cite as
fireemblem6j
Original
https://github.com/FireEmblemUniverse/fireemblem6j
Pinned
FireEmblemUniverse/fireemblem6j @ e83dd395a5afe88d75967ce01a30a78e55c09e10
Accessed
2026-10-21
Licence
none stated (no LICENSE file; GitHub reports no license)
Credit
Begun by StanHash (as StanHash/fe6) and continued under FireEmblemUniverse; 5 GitHub contributors (2026-10-21): MokhaLeee, StanHash, laqieer, wheremyfoodat, and kagnusdev. See https://github.com/FireEmblemUniverse/fireemblem6j/graphs/contributors.
Notes
A C decompilation of the Japanese release, Fire Emblem: Fūin no Tsurugi, the game's only release on the Game Boy Advance: its README says it builds fe6.gba with sha1 a57095da867de4d585c33d4394712986245fe6ca. Function and variable names are the decompilers'. The atlas fetches only src/, include/, and the README.

Cited on

Claims (4)

The Binding Blade hits when the displayed hit is greater than the average of two random numbers, rounded down; each number divides a 16-bit NextRN() by 655, so it runs from 0 to 100, and 100 comes from only 36 of the 65,536 values.src/random.c L69–73src/random.c L88–96src/battle.c L746–749src/battle.c L738Code
Computed from the code, taking the two numbers as independent, a displayed 80 in The Binding Blade hits 92.16% of the time, 50 hits 50.44%, and 20 hits 8.19%; a displayed 100 misses 1,296 times in 4,294,967,296, when both numbers come out 100.src/random.c L73src/random.c L92–96src/battle.c L521–522Code
The Binding Blade computes hit as twice the skill, plus the weapon's hit, half the luck, and the weapon triangle's bonus, and avoid as twice the attack speed plus the terrain's avoid and the luck; the hit it rolls against is hit less avoid, held within 0–100.src/battle.c L493src/battle.c L498src/battle.c L519–525Code
The Binding Blade's crit is the weapon's crit plus half the skill, plus 30 for classes with a crit bonus, less the defender's luck and at least 0; after a hit, one random number below it triples the damage.src/battle.c L506–514src/battle.c L530–533src/battle.c L739src/battle.c L754–757src/random.c L83–85Code