Entry 246

What the save's open fields hold

2026-09-27save

Filesdocs/formats/save.md

Asked for: more of the docs' open questions. docs/formats/save.md is now solid, with a section on what its open fields hold.

Already on other pages

Most of the page's questions had answers on the engine pages:

• eventFlag bits (events);
• eventStatus (the status ops);
• partyMemberCall (the call_* ops, and the Members menu, which refuses a clear bit);
• townMoveFlag (Other Servers);
• drainDemo (its option menu);
• growth (the Grunties);
• the Time Idol ranks (the field objects and the board).

Two Init values needed a lookup:

• tactics 7 is Operation Wonder Battle. The field holds the CHAT order 7-10, and ccSpcSetOperation maps it to partyStrategy 0-3.
• partyMemberCall 0x3fffe means every member (bits 1-17) answers a call.

Found here

• eventEntry[160][6]. A bit per event-placed gimmick of each field (game.field, 1-160, up to 192 entries).
  • CheckEventEntry tests the bit.
  • ClearEventEntry clears it, through ccEntryCtrl::deleteEventEntry, when a box is opened, an object broken, a Virus Core taken or an idol used.
• hyProccess[8][4]. Each Ryu Book's payout level:
  • BOOK::GetBookItem runs the book's GetBookNNItem per level;
  • each gives a reward only above the stored level, and stores the level once the item is added.

Never read

A scan of every instruction in the executables and overlays, for the offsets as immediates next to a lui 1 and through the extension's pointer, found the same on Mutation, Outbreak and Quarantine:

• the blocks at +0x8432 and +0x8462: zeroed by Init, copied by ccSaveSys::MainProccess, nothing else;
• the extension's +0x754: cleared and copied, nothing else.

The page's note that gcmn reads +0x845e had no source and the scan finds no such read, so it is gone.