NES 2.0 Mapper 388: Difference between revisions
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{{DEFAULTSORT:388}} | {{DEFAULTSORT:388}}[[Category:Mappers with ROM nametables]][[Category:Mappers with scanline IRQs]][[Category:Mappers with cycle IRQs]][[Category:Multicart mappers]] | ||
'''NES 2.0 Mapper 388''' denotes J.Y. Company's '''YY841145C''' and '''YY850835C''' circuit boards, used for the multicarts: | '''NES 2.0 Mapper 388''' denotes J.Y. Company's '''YY841145C''' and '''YY850835C''' circuit boards, used for the multicarts: | ||
* ''1996 Super HiK 4-in-1 (JY-056 earlier version)'' | * ''1996 Super HiK 4-in-1 (JY-056 earlier version)'' | ||
Revision as of 19:52, 7 October 2019
NES 2.0 Mapper 388 denotes J.Y. Company's YY841145C and YY850835C circuit boards, used for the multicarts:
- 1996 Super HiK 4-in-1 (JY-056 earlier version)
- 1996 Super HiK 5-in-1 (JY-056 later version)
It uses the J.Y. Company ASIC, has 1 MiB of PRG-ROM and CHR-ROM each, and is similar to NES 2.0 Mapper 386 but has the Outer Bank register bits in a different order. This particular PCB inhibits ROM nametables and Extended Mirroring that would otherwise be enabled via register, similar to INES Mapper 090.
Outer Bank Register ($D003)
Mask: $F003
7654 3210
---- ----
..L. PpCc
| |||+- CHR A18, ignored if L=1
| ||+-- CHR A19
| |+--- PRG A18
| +---- PRG A19
+------- Select outer CHR-ROM bank size
0: Mask $900x/$A00x to 256 KiB, use c
1: Mask $900x/$A00x to 512 KiB, ignore c
For a description of all other registers, see J.Y. Company ASIC.
