SRW MX Portable hacking notes

SRW MX Portable hacking notes

Files with text (so far):

BATTLE2.BIN, MAP_ADD.BIN, STATIC2_ADD.BIN, BOOT.BIN

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BATTLE2.BIN:

* First battle quote found at 00075ce4 (Baron Ashura's lines?).
* The 296 bytes right before those could look like a pointer table at first, but the numbers don't add up. It's probably the voice IDs of each line.
* The block seems to start at 00075800.
* If there's anything resembling a pointer table in this, I'm not seeing it.
* The character name isn't written anywhere (it's probably inside BOOT.BIN).
* Bytes 24 - 25 have the start of the list of (possible) voice IDs (little-endian).
* Bytes 26 - 27 have the start of the battle quotes inside the block(little-endian).
* With the previous two values, it's easy to determine the number of battle quotes in the file (each "voice ID" is 4 bytes long).

* The first block seems to end at 00076800, setting its size to 4096 bytes.
* These blocks seem to be 2048-byte alligned, judging from the massive padding.

* Last block of battle quotes seem to start at 0031a008 and end at some point before 0031c000.


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MAP_ADD.BIN:

* There's a section with names at 02aa8000. Seems to be location names.

* Magic word is "MPTI" (ASCII, no quotations).
* Next 4 bytes seem to indicate the number of entries (630 or 0x0276 in little-endian).

* Each of the location names is inside a 52 byte block that ends with 0xc0 ('À' in ASCII), usually preceded by 0x11.
* The first location of the list only takes 34 bytes, though.
* The second location has empty data.
* First 18 bytes of each 52-byte block contain unknown data instead of text (probably other parameters of the terrain).
* Some of these names are separated in several lines using the @ character in ASCII.

* There's a ton of empty entries.
* Ends at 02ab5800 (where a bunch of UNTD blocks start)

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* Text blocks start at 02bce000, right after the UNTD blocks end.
* I haven't found any pointer table for these blocks, maybe it's inside a different file. Or it might not matter at all, in which case, congratulations.

* Magic word for the block: "SRWL" (ASCII, no quotations).
* 4 bytes after that: ?
* 4 bytes after: number of dialogues.
* 4 bytes after: offset of pointer table for dialogues.
* Next 8 bytes: FF FF FF FF FF FF FF FF.
* Values are little-endian.

* Table seems to be 16-byte alligned.
* Each pointer in the table is 4 bytes long.
* Text blocks seem to be 2048-bytes alligned (there's always a lot of unused space at the end).

* The end of a dialogue is signaled by a 00 byte.
* Carriage returns are signaled with an @ character in ASCII.
* The original character and mech names seem to use special codes starting with a # character in ASCII:
	- #男姓名 is the male character's name.
	- #女姓名 is the female character's name.
	- #男愛称 is the male character's nickname.
	- #女愛称 is the female character's nickname.
	- #機体名 is the original mech's name.

(Of course, there could be more codes, if something else is named)

* The last text block seems to end at 03315000 (The start of a PADT block).

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* The PADT block seems to contain test data. However, there are some seishin and ability names spliced around the block. Might be worth taking a look.
* Ends at 033457f0 (start of SDAT blocks).


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STATIC2_ADD.BIN:

* Skills, weapons, unit, song and character names and other stuff like Character / Robot Library entries can be found here.
* There's multiple sections, each containing a type of strings.
* Strings are separated by 00 bytes.
* There's a pointer table right before each section. First 4 bytes is the number of entries in the table. Each pointer is 4 bytes long.
* For example, a pointer table starts at 001c08cc. The text it points to is right after it, at offset 001c5b70.
* It's essentially the same as add02dat.bin in GC.


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BOOT.BIN:

(This has a TON of stuff in several places and will require a bit of ASM hacking to expand)