INES Mapper 088

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Revision as of 19:33, 13 June 2012 by Lidnariq (talk | contribs) (Add cat:MMC3-like)
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 Here are Disch's original notes:  
 ========================
 =  Mapper 088          =
 ========================
 
 
 Example Games:
 --------------------------
 Quinty (J)
 Namcot Mahjong 3
 Dragon Spirit - Aratanaru Densetsu
 
 
 Registers:
 ---------------------------
 
 Range,Mask:   $8000-FFFF, $8001
 
 
   $8000:  [.... .AAA]  Address for use with $8001
 
 
   $8001:  [DDDD DDDD]
     Data port:
       R:0 ->  CHR reg 0
       R:1 ->  CHR reg 1
       R:2 ->  CHR reg 2
       R:3 ->  CHR reg 3
       R:4 ->  CHR reg 4
       R:5 ->  CHR reg 5
       R:6 ->  PRG reg 0
       R:7 ->  PRG reg 1
 
 
 CHR Setup:
 ---------------------------
 
 CHR is split into two halves.  $0xxx can only have CHR from the first 64k, $1xxx can only have CHR from the
 second 64k.
 
 
 
        $0000   $0400   $0800   $0C00   $1000   $1400   $1800   $1C00 
      +---------------+---------------+-------+-------+-------+-------+
      |     <R:0>     |     <R:1>     |  R:2  |  R:3  |  R:4  |  R:5  |
      +---------------+---------------+-------+-------+-------+-------+
      |                               |                               |
      |  AND written values with $3F  |  OR written values with $40   |
 
 
 PRG Setup:
 ---------------------------
 
       $8000   $A000   $C000   $E000  
     +-------+-------+-------+-------+
     |  R:6  |  R:7  | { -2} | { -1} |
     +-------+-------+-------+-------+