It is currently Thu Sep 19, 2019 6:36 pm

All times are UTC - 7 hours





Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Mon Jun 03, 2019 1:49 pm 
Offline

Joined: Sun Jun 12, 2011 12:06 pm
Posts: 541
Location: Poland
Another pirate port from FDS to famicom (after SMB2J, Nazo no Murasamejou and maybe many others that you can give examples).
This mapper uses non-standard bank alignment (very similar to LH-53).
I would attach the ROM but can't see anything that I can make IPS patch from.

Image Image Image Image Image

Code:
16kB PRG-RAM + 128kB PRG-ROM + 8kB CHR-ROM
PRG banking register $8000 (mask: $F000)
[....pppp] (pppp: PRG bank at $6000)
   
Mirroring register $E000 (mask: $F000)
[....m...] (m: 0=V, 1=H)

PRG mode register $F000 (mask: $F000)
[...v....] (v: 0=RAM, 1=ROM)

PRG configuration (for reads)
v 6000 6800 7000 7800  8000 8800 9000 9800  a000 a800 b000 b800  c000 c800 d000 d800  e000 e800 f000 f800
  ---- ---- ---- ----  ---- ---- ---- ----  ---- ---- ---- ----  ---- ---- ---- ----  ---- ---- ---- ----
0 RAM1 RAM1 RAM1 RAM1  ROMc ROMc ROMc ROMc  ROMd ROMd ROMd RAM0  RAM0 RAM0 RAM0 ROMe  ROMf ROMf ROMf ROMf
1 ROM# ROM# ROM# ROM#  ROMc ROMc ROMc ROMc  ROMd ROMd ROMd ROMd  ROMe ROMe ROMe ROMe  ROMf ROMf ROMf ROMf 

PRG configuration (for writes)
v 6000 6800 7000 7800  8000 8800 9000 9800  a000 a800 b000 b800  c000 c800 d000 d800  e000 e800 f000 f800
  ---- ---- ---- ----  ---- ---- ---- ----  ---- ---- ---- ----  ---- ---- ---- ----  ---- ---- ---- ----
0 RAM1 RAM1 RAM1 RAM1  -    -    -    -     -    -    -    RAM0  RAM0 RAM0 RAM0 -     -    -    -    -
1 RAM1 RAM1 RAM1 RAM1  -    -    -    -     -    -    -    RAM0  RAM0 RAM0 RAM0 -     -    -    -    -

CHR configuration:
8kB RAM

Notes:
*Those are 8kB banks (just they don't always end on 8kB boundary so 2kB granularity was needed)
*RAM0 means first 8k of RAM
*RAM1 means second 8k of RAM
*ROM# means ROM with the bank selected by register $8000
*ROMc/ROMd/ROMe/ROMf means $c/$d/$e/$f 8kB bank of the ROM


Top
 Profile  
 
PostPosted: Mon Jun 03, 2019 3:46 pm 
Offline

Joined: Thu May 19, 2005 11:30 am
Posts: 975
This is iNES mapper 103, not yet described on the wiki. The ROM is in GoodNES 3.23b as "Doki Doki Panic (FDS Conversion).nes".


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: lidnariq and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group