Online Decompiler
sample : the routine at 0x80070AC in FE7J
Upload the binary sample, set options correctly and click “Decompile!”
View and save the results:

It is easy to understand what this routine does by reading the decompiled C code or the control-flow graph:
Input 28,51,57,62,63,65, return 1; otherwise return 0. (In fact, it returns whether the height needs a fix according to the index of the portrait.)
Online Disassembler
Not all hackers are proficient in C. Besides, not all routines are written in C.
sample : the routine at 0x80000FC in FE7J
Upload the binary sample:
Set options correctly:
It is an interactive disassembler, so you can set this later:
right click-> convert to code:
the graph view:

Zoom in/out and drag it freely:
