INES Mapper 093: Difference between revisions

From NESdev Wiki
Jump to navigationJump to search
No edit summary
m (Incorporate information from having REd the board)
Line 2: Line 2:
This is part of a family of Sunsoft mappers used largely by Japanese games: ([[iNES Mapper 089]], [[iNES Mapper 093]], [[iNES Mapper 184]])
This is part of a family of Sunsoft mappers used largely by Japanese games: ([[iNES Mapper 089]], [[iNES Mapper 093]], [[iNES Mapper 184]])


This mapper is used by Shanghai (J) which uses the Sunsoft-2 mapper chip, as well as Fantasy Zone (J) which uses the Sunsoft-1 mapper chip but is wired differently than other boards that use the Sunsoft-1 chip. (See [[iNES Mapper 184|Mapper 184]] for more information). Also see [[iNES Mapper 089|Mapper 089]] for another Sunsoft-2 game which works a little differently.
This mapper is used by Shanghai (J) which uses the Sunsoft-2 IC on the Sunsoft-3R board, as well as Fantasy Zone (J) which was programmed to work on both the Sunsoft-3R board and a different one that used the Sunsoft-1 IC (see [[iNES Mapper 184|Mapper 184]] for more information). [[iNES Mapper 089|Mapper 089]] uses the same Sunsoft-2 IC but on the Sunsoft-3 board and so differs in that it has mapper-controlled one-screen mirroring and CHR ROM banking.
 
Fantasy Zone (J) is noteworthy for making mapper register writes in pairs which are designed to program the [[iNES Mapper 093]] board configuration described here, as well as a modified [[iNES Mapper 184|Mapper 184]] with some signals routed differently.


Here is the documentation in [[INES_Mapper_DischDocs|disch's original style]]:   
Here is the documentation in [[INES_Mapper_DischDocs|disch's original style]]:   
Line 10: Line 8:
   Registers:
   Registers:
   --------------------------
   --------------------------
   I don't know if this mapper suffers from bus conflicts or not. Use caution!
   No bus conflicts.
 
   
 
     $8000-FFFF:  [.PPP ...E]
     $8000-FFFF:  [PPPP ...M]
       P = PRG Reg  (16k @ $8000)
       P = PRG Reg  (16k @ $8000)
       M = Mirroring:
       E = CHR RAM enable (write 1 here for normal operation)
        0 = Vert
        1 = Horz
    
    
    
    

Revision as of 21:19, 7 June 2012

This is part of a family of Sunsoft mappers used largely by Japanese games: (iNES Mapper 089, iNES Mapper 093, iNES Mapper 184)

This mapper is used by Shanghai (J) which uses the Sunsoft-2 IC on the Sunsoft-3R board, as well as Fantasy Zone (J) which was programmed to work on both the Sunsoft-3R board and a different one that used the Sunsoft-1 IC (see Mapper 184 for more information). Mapper 089 uses the same Sunsoft-2 IC but on the Sunsoft-3 board and so differs in that it has mapper-controlled one-screen mirroring and CHR ROM banking.

Here is the documentation in disch's original style: 

 Registers:
 --------------------------
 No bus conflicts.
   
   $8000-FFFF:  [.PPP ...E]
     P = PRG Reg  (16k @ $8000)
     E = CHR RAM enable (write 1 here for normal operation)
 
 
 PRG Setup:
 --------------------------
 
       $8000   $A000   $C000   $E000  
     +---------------+---------------+
     |     $8000     |     { -1}     |
     +---------------+---------------+
Retrieved from "https://www.nesdev.org/w/index.php?title=INES_Mapper_093&oldid=4692"