I've been testing out FDS rip NSFs on the PowerPak, and I've found a whole lot of them have problems. Here's a few random examples:
* Akai Yousai (fails to start)
* Bio Miracle Bokutte Upa (crash on track 2)
* Falsion (fails to start)
I'm curious about the FDS implementation on this mapper. I've ruled out problems with RAM writes being mirrored by bankswitching, which was indeed a problem for four NSFs but I have fixed those.
My hunch is that writes to $6000-7FFF are working fine, but NSFs that rely on writes to $8000-DFFF might not be?
Also, is there source code for the NSF mapper available? I wouldn't mind being able to investigate the issue on my own.
(Edit: just to clarify this problem appears the same with loopy's latest NSF mapper as well as the one distributed by retrousb.)
* Akai Yousai (fails to start)
* Bio Miracle Bokutte Upa (crash on track 2)
* Falsion (fails to start)
I'm curious about the FDS implementation on this mapper. I've ruled out problems with RAM writes being mirrored by bankswitching, which was indeed a problem for four NSFs but I have fixed those.
My hunch is that writes to $6000-7FFF are working fine, but NSFs that rely on writes to $8000-DFFF might not be?
Also, is there source code for the NSF mapper available? I wouldn't mind being able to investigate the issue on my own.
(Edit: just to clarify this problem appears the same with loopy's latest NSF mapper as well as the one distributed by retrousb.)