INES Mapper 133: Difference between revisions

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(try to distinguish between "select register" by the CPU and "select register" by the feedback path)
(Add Daoshuai; remove historical mapper usage)
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{{DEFAULTSORT:133}}[[Category:iNES Mappers]][[Category:GNROM-like mappers]]
{{DEFAULTSORT:133}}[[Category:iNES Mappers]][[Category:GNROM-like mappers]]
GoodNES allocated [[iNES Mapper 133]] for the [[wikia:c:bootleggames:Sachen|Sachen]] unlicensed game "Jovial Race". It's almost identical to [[NINA-003-006|NINA-06]].
[[iNES Mapper 133]] is used for the [[wikia:c:bootleggames:Sachen|Sachen]] unlicensed game ''Jovial Race'' and the original Joy Van release of ''Master Chu and the Drunkhard Hu (盜帥)''. It's almost identical to [[NINA-003-006|NINA-06]]. Its UNIF MAPR is '''UNL-SA-72008'''.
 
Санчез, however, allocated Jovial Race to [[iNES Mapper 150]]. Either way, its UNIF MAPR is '''UNL-SA-72008'''.


   Mask: $E100
   Mask: $E100
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If this feedback path doesn't settle on one specific register, then the selected banks will rapidly switch between all the registers specified by the feedback path, and the 108 clone will get hot.
If this feedback path doesn't settle on one specific register, then the selected banks will rapidly switch between all the registers specified by the feedback path, and the 108 clone will get hot.
Since both games' physical releases retain the write to $4120 with content as described above, there is currently no need for emulators to emulate the Namco 108 clone variant of the board.


See also:
See also:
* http://cah4e3.shedevr.org.ru/%5Blst%5D-sachen-mappers.txt
* http://cah4e3.shedevr.org.ru/%5Blst%5D-sachen-mappers.txt
* https://forums.nesdev.org/viewtopic.php?p=210246#p210246
* https://forums.nesdev.org/viewtopic.php?p=210246#p210246

Revision as of 17:16, 29 January 2018

iNES Mapper 133 is used for the Sachen unlicensed game Jovial Race and the original Joy Van release of Master Chu and the Drunkhard Hu (盜帥). It's almost identical to NINA-06. Its UNIF MAPR is UNL-SA-72008.

 Mask: $E100
 $4100: [.... .PCC] - Select 32 KiB PRG bank and 8 KiB CHR bank

Another physical release instead wired a Namco 108 clone in an inscrutably complex way:

 Mask: $E001
 $8000: [..B. .B.B] - Select register for writing
 $8001: [...X XPCC] - Write value to register
            | ||||
            | ||++--- select 8 KiB CHR bank
            | |+----- select 32 KiB PRG bank
            +-+------ analog feedback path

Four of the registers produce an analog feedback path through the 108's CHR registers:

XX bits if this register was selected by the XX bits, switch to using contents of register
$00 $04
$08 $24
$10 $01
$18 $21

If this feedback path doesn't settle on one specific register, then the selected banks will rapidly switch between all the registers specified by the feedback path, and the 108 clone will get hot.

Since both games' physical releases retain the write to $4120 with content as described above, there is currently no need for emulators to emulate the Namco 108 clone variant of the board.

See also: