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mrnobody, posted Thu Nov 01, 2018 7:17 am (40016)

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Hi!
I want to translate a japanese psx game called Aconcagua to english/spanish.
It seems that all the text is in a file called PROGRAM.BIN. The game is double-disc but I think it's the same structure in each disc.
Could somebody help me create a script to extract/inject the in-game text or just decompress/compress the file?
This post have more information on the file compression http://www.romhacking.net/forum/index.p ... #msg352700

I uploaded the program.bin file of the CD1 to mega because of the size:
https://mega.nz/#!TOIQyKQS!TBchdQT1HnNP ... JgzFYBKo2s

Thanks!

aluigi, posted Thu Nov 01, 2018 12:57 pm (40021)

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The bin looks like a container so the information about the archived files are somewhere else, maybe in another small file.
The real problem is the compression algorithm because it's none of those available in quickbms.
It's probably an algorithm that has something in common with CLZ77 and MSLZSS1.

I leave my work-in-progress script which scans the PSX-EXE strings for finding the files, obviously it DOES NOT WORK because no compression is available (it's just a scfript for myself):

Code:

comtype ???
get BIN_SIZE asize
for OFFSET = 0 != BIN_SIZE
    goto OFFSET
    findloc OFFSET binary "PS-X EXE"
    goto OFFSET
    idstring "PS-X EXE"
    goto 0x14 0 SEEK_CUR
    get XSIZE long
    goto 0xb0 0 SEEK_CUR
    get DUMMY long
    get SIZE long
    get ZSIZE long
    get DUMMY long  # ever 1
    math OFFSET   0x800
    if SIZE == 0
        math ZSIZE = XSIZE
        log "" OFFSET ZSIZE
    else
        clog "" OFFSET ZSIZE SIZE
    endif
    math OFFSET   ZSIZE
    math OFFSET x 0x800
next

mrnobody, posted Fri Nov 02, 2018 2:32 pm (40050)

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It seems like a really difficult compression, i was wondering why anybody haven't tried to translate the game, but it makes sense now.
Thanks a lot anyways aluigi, I appreciate your time and your help a lot!