Firmware Fn setRouteSectionDetourId

setRouteSectionDetourId — CfcTypeJourneyRouteId::setRouteSectionDetourId

Part of Firmware Reversing.

• File offset: 0x7c4898 (VA 0xf705258c)
• Status: 🟡* Partially traced — one of only 4 functions in the "gold standard" set (real name + confirmed real caller) that is ALSO an exact, clean strict-prologue match. Real logic confirmed for the first ~80 bytes; a real matching epilogue wasn't found within 768 bytes, so the full extent is NOT bounded (unlike getIso2CountryCode, traced the same session from the same gold-standard list).
• Full mangled name: setRouteSectionDetourId__21CfcTypeJourneyRouteIdi

What's confirmed

Takes 4 real arguments (this, r4, r5, r6). Early logic: calls an indirect function through this, checks a result code (cmpwi against 0x22), writes a zero byte to a computed array position (r27+r28 as index), clears a real global flag, and tests a bit flag (&2) from a field of this — thematically plausible for "setting a route-section detour ID" (validating state, clearing a flag, writing to an indexed array position), though not confirmed beyond this point. Shows the same inline "undecodable data" shape documented centrally on Firmware Reversing — here appearing very early in the function (right at its 2nd instruction), not just at the end.

Callees

Not resolved in the traced portion (the one indirect call goes through a computed function pointer, not a named lis/addi reference).