Okay, here's the thing:

My translation of text required 2 more characters than its Japanese counterpart, borrowing from another line of text.

However, the game still pulls the the next set of characters from the same address, resulting in pulling the end of my text "e" from "erase" as well as ending the string from the last set:


How do I change where it pulls text? \

Set breakpoints in FCEUX. Debug -> Debugger -> Add breakpoint
You know the CPU address (the pointer value) for the original text it's trying to read? Set the address and click Read.
Now when the game tries to read the pointer, the debugger window will appear with the instruction that's trying to read it.
It's probably a LDA ($nn),Y instruction.
That instruction means to read the pointer at RAM address $00nn, add the Y register to it and read from the resulting address.
So, clear out that breakpoint and add a new one for address $00nn+1. Now reload the menu.
(it's possible the game is updating $00nn (the low byte of the pointer) after each character is written. So, by checking when the high byte is written, you'll get less false positive results.)
Less likely is a $nnnn,x or $nnnn,y instruction. In that case the pointer is in the instruction. It'll tell you the address of the instruction, so then you can just look for it in the ROM and change it.

That's not a pointer you edited. I would advise reading up on some pointer and pointer table docs. Except in special cases they're really not that complicated.

Okay, now that sounds familiar again.

Anyway, I read Mad Hacker's doc on pointers, which blew the carp out of me - I've never worked with pointers before.

So all is well:



And again I feel like a total newbie not knowing this stuff. \ It'll probably happen again!