NES 2.0 Mapper 319: Difference between revisions

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(Add disclaimer)
(Update based on additional cartridge dumps)
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[[Category:Multicart mappers]]
[[Category:Multicart mappers]]
NES 2.0 Mapper 319 is used for the ''Prima Soft 9999999-in-1'' multicart. Its UNIF board name is '''BMC-HP898F'''.
NES 2.0 Mapper 319 denotes the '''HP-898F''' and '''KD-7/9-E''' circuit boards. Its UNIF board name is '''BMC-HP898F'''. Used for:
* ''Prima Soft 9999999-in-1''
* ''Olympic 2000 1000000-in-1''
* ''4-in-1 (0207)''
* ''4-in-1 (0210)''
* ''4-in-1 (KG-443)''
* ''9999999-in-1 (KD-6037-B)''


=Banks=
=Banks=
Line 12: Line 18:
   
   
  D~7654 3210
  D~7654 3210
   ---------
   ---------  
   MDPP P...
   MDaB C...
   ||++-+---- Select Inner 16 KiB PRG-ROM bank at
   |||| +---- PRG A15
   ||         CPU $8000-$BFFF and CPU $C000-$FFFF
   |||+------ PRG A16
   ||         (subject to modification by bit 6)
   ||+------- PRG A14 if D=0
   |+-------- PRG A16 mode
   |+-------- PRG A14 mode
   |          0: Do not change PRG A16
   |          0: PRG A14=p (NROM-128)
   |          1: A16=0 for CPU $8000-$BFFF,
   |          1: PRG A14=CPU A14 (NROM-256)
  |              A16=1 for CPU $C000-$FFFF
   +--------- Select nametable mirroring type
   +--------- Select nametable mirroring type
               0: Horizontal
               0: Horizontal
               1: Vertical
               1: Vertical
Note: These bit meanings apply to the currently-available ROM image, which is likely to have an incorrect bank order.
 
==CHR-ROM Bank ($6000)==
==CHR-ROM Bank ($6000)==
  Mask: $6004
  Mask: $6004
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  D~7654 3210
  D~7654 3210
   ---------
   ---------
   .CCC ..12
   CCCC ....
    |||   |+- 0=Keep CHR A15, 1=Force CHR A15 to zero
  ||||
    |||   +-- 0=Keep CHR A14, 1=Force CHR A14 zo zero
  ||||
    +++------ Select 8 KiB CHR-ROM bank at PPU $0000-$1FFF
  ++++------ Select 8 KiB CHR-ROM bank at PPU $0000-$1FFF
              (subject to modification by bits 0-1)
 
==Solder Pad Register ($5FF0)==
Mask: probably $F000
D~7654 3210
  ---------
  .P.. ....
    +-------- Solder pad value

Revision as of 17:43, 21 September 2019

NES 2.0 Mapper 319 denotes the HP-898F and KD-7/9-E circuit boards. Its UNIF board name is BMC-HP898F. Used for:

  • Prima Soft 9999999-in-1
  • Olympic 2000 1000000-in-1
  • 4-in-1 (0207)
  • 4-in-1 (0210)
  • 4-in-1 (KG-443)
  • 9999999-in-1 (KD-6037-B)

Banks

  • CPU $8000-$BFFF: 16 KiB switchable PRG-ROM bank
  • CPU $C000-$FFFF: 16 KiB switchable PRG-ROM bank
  • PPU $0000-$1FFF: 8 KiB switchable CHR-ROM bank

Registers

PRG-ROM Bank and Mirroring ($6004)

Mask: $6004

D~7654 3210
  ---------   
  MDaB C...
  |||| +---- PRG A15
  |||+------ PRG A16
  ||+------- PRG A14 if D=0
  |+-------- PRG A14 mode
  |           0: PRG A14=p (NROM-128)
  |           1: PRG A14=CPU A14 (NROM-256)
  +--------- Select nametable mirroring type
              0: Horizontal
              1: Vertical

CHR-ROM Bank ($6000)

Mask: $6004

D~7654 3210
  ---------
  CCCC ....
  ||||
  ||||
  ++++------ Select 8 KiB CHR-ROM bank at PPU $0000-$1FFF

Solder Pad Register ($5FF0)

Mask: probably $F000

D~7654 3210
  ---------
  .P.. ....
   +-------- Solder pad value
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