You know about ROM banks, right? If you've expanded the ROM, then it ought to be safe to give the dialogue a bank all its own.

Note, however, that if the pointers are two-byte instead of three-byte, then you're going to need to do some hacking to make sure the game is looking for its dialogue in the right place.

Change the address that the script insertion begins at. You'll need a basic grasp of the SNES memory map to pull it off. IIRC, FFVI is a HiROM game, so basically you take the PC address and add $C0:0000 to it to get the full pointer. (Conversely, you take the SNES address and subtract $C0:0000 to get the PC address.)

But again, if the pointers are only two bytes long (i.e. missing the bank byte), then you're going to need to engage in some ASM trickery to get it to look for the script in the right place.

Kewl, now tell us where? In ROM? In RAM? In DUCKBURG?


Good. Now look through the document section to your upper left and see if there is anything pertaining to the SNES memory map at all. Hint: There is. Lots.


No. You would read up on the SNES memory mapping, make conclusions about your problem at hand and compute the right mapped address that will work for your SNES rom.


No.

cYa,

Tauwasser

Also, check whether there is a header on the ROM.
(the easy I tell is to look at the size in KB (reported by Windows Explorer). Odd value (like 3,073) = header, even (3,072) = no header)

Now just where did you get that information from if you read and understood the Rom Hack City SNES ROM layout page? For your rom to be able to start with bank 0x00 (and be fully accessible therein), it would need to be LoRom, yet your offset and bank sizes do not match up with the calculated bank number.
I guess now that your rom is either LoRom and you did not use the correct formula, both of which were given at the page, or you used a HiRom layout counting from bank 0x00 instead of 0xC0 or 0x40.

You either have LoRom, which would yield bank 0x1A or 0x9A, or HiRom which would yield bank 0x4D or 0xCD, depending on the code used. If you have other mappings, you will have to look them up and do the conversion yourself. Or use Lunar Address to do it for you. I believe ExLoRom and ExHiRom use the otherwise mirrored banks to access different stuff and have certain speed penalties to different access ranges, but don't quote me on this.

So now please, don't just read over a document and say "got it, doesn't help" and instead go grab a debugger and get some hands on experience with memory mapping for your particular game so you'll get a grip what the flip you're talking about. Because then you'll be able to get what people here tell you much easier.
What you need to do is, as Ryusui said, you will need to locate the pointers. If they have a bank byte attached to them, you are going to be just fine and all set, because you can simply change these. If they do not have a bank byte attached, and let's face it, changes are they won't, you will have to locate all code processing these pointers and move that to the new banks as well, so you can access your newfound space.
Now is the time to read up on SNES ASM, addressing modes and addressing ranges. Right after you got that damn debugger out and tried the mapping you proposed on your rom and see how it's bogus and won't work.

cYa,

Tauwasser

Only for HiRom (and maybe derivatives of that), which you forgot to stress once again. I cannot be bothered to download the rom and check it out for myself. I assume you're right, because it probably is not LoRom, but I think it's much more important to understand the underlying concept for those additions rather than to make it a default formula in one's head, close one's eyes and hope for the best.

cYa,

Tauwasser

Yeah; header bad.  Ice cream delicious.  Hulk Smash.