|how to create custom .nsf file?
|Page 1 of 1|
|Author:||infidelity [ Tue Sep 09, 2014 7:24 am ]|
|Post subject:||how to create custom .nsf file?|
in my Zelda romhack, I used the Capcom 6C80 Sound Engine. So I borrowed an .nsf file of Megaman 4, to see if I can pull off my roms music/sfx being in an .nsf file.
I looked at the nsf file in a windows hex program, and I notice that $80 is the start of where the sound engine starts. So what I did, was copy my entire sound engine in my rom from $B0010-$B4000 (4000 bytes), and pasted it into $80 of the .nsf file.
So to my surprise, it starts playing the tunes that are located within $8000-$BFFF.
Now, this sound engine allows you to bankswap to expand the addresses used to load additional songs & sfx, by allowing you to use address from $C000-$DFFF. But, it's not playing those songs in the .nsf file.
So within the nsf file I did....
$80-$407F (4000 bytes) = sound engine and songs/sfx
so I figured $4080 within the .nsf file would be the starting point for $C000-$DFFF.
$4080-$4F30 = $C000-$DFFF music in sound engine
So could someone please help me out on getting my additional music to play?
nm I figured it out! turns out within the Capcom 6C80 sound engine .nsf files, the sound engine has that check for addresses in the $C000-$DFFF range EA'd out, stopping the sound engines bankswap routine kicking in. So I did the same, and now my .nsf is playing my music/sfx within the $C000-$DFFF range.
|Page 1 of 1||All times are UTC - 7 hours|
|Powered by phpBB® Forum Software © phpBB Group