INES Mapper 046

This mapper appears to be designed for making a multicart of multiple Color Dreams games. The outer mapper, selecting 128K CHR ROM banks (bits 7-4) and 128K PRG ROM banks (bits 3-0), is at $6000-$7FFF, and the inner mapper is otherwise identical to Color Dreams (#11). The number of bits in the outer mapper's register is not confirmed, but from only the description, it supports up to 2 MB PRG ROM and 2 MB CHR ROM.

 Here are Disch's original notes:  
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 =  Mapper 046          =
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 Example Game:
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 Rumblestation 15-in-1
 
 
 Bus Conflicts?:
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 No idea whether or not this mapper suffers from bus conflicts.  Use caution!
 
 
 Registers:
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 Regs at $6000-7FFF means no PRG-RAM.
 
 
   $6000-7FFF:  [CCCC PPPP]   High CHR, PRG bits
   $8000-FFFF:  [.CCC ...P]   Low CHR, PRG bits
 
 'C' selects 8k CHR @ $0000
 'P' select 32k PRG @ $8000
 
 
 Powerup:
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 $6000 set to 0 on powerup.