https://www.nesdev.org/w/index.php?title=NES_2.0_Mapper_539&feed=atom&action=historyNES 2.0 Mapper 539 - Revision history2024-03-29T14:47:55ZRevision history for this page on the wikiMediaWiki 1.39.0https://www.nesdev.org/w/index.php?title=NES_2.0_Mapper_539&diff=8157&oldid=prevNewRisingSun: Created page with "{{DEFAULTSORT:539}}Category:Mappers with CHR RAMCategory:FDS conversion mappers NES 2.0 Mapper 539 denotes a bootleg cartridge conversion of the original FDS version o..."2019-06-03T23:00:04Z<p>Created page with "{{DEFAULTSORT:539}}<a href="/wiki/Category:Mappers_with_CHR_RAM" title="Category:Mappers with CHR RAM">Category:Mappers with CHR RAM</a><a href="/wiki/Category:FDS_conversion_mappers" title="Category:FDS conversion mappers">Category:FDS conversion mappers</a> NES 2.0 Mapper 539 denotes a bootleg cartridge conversion of the original FDS version o..."</p>
<p><b>New page</b></p><div>{{DEFAULTSORT:539}}[[Category:Mappers with CHR RAM]][[Category:FDS conversion mappers]]<br />
NES 2.0 Mapper 539 denotes a bootleg cartridge conversion of the original FDS version of ''Kid Icarus'' (パルテナの鏡).<br />
=Banks=<br />
* CPU $6000-$7FFF: 8 KiB fixed PRG-ROM bank $D<br />
* CPU $8000-$9FFF: 8 KiB fixed PRG-ROM bank $C<br />
* CPU $A000-$BFFF: 8 KiB switchable PRG-ROM bank<br />
* CPU $C000-$DFFF: 8 KiB fixed PRG-ROM bank $E<br />
* CPU $E000-$FFFF: 8 KiB fixed PRG-ROM bank $F<br />
* PPU $0000-$1FFF: 8 KiB of unbanked CHR-RAM<br />
<br />
Certain ranges in the CPU address space are overlaid with portions of 8 KiB of PRG-RAM as follows:<br />
* CPU $6000-$60FF<br />
* CPU $6200-$62FF<br />
* CPU $6400-$65FF<br />
* CPU $8200-$82FF<br />
* CPU $C000-$D1FF<br />
* CPU $DF00-$DFFF<br />
<br />
=Registers=<br />
==PRG Bank Select ($A000, write)==<br />
Mask: unknown<br />
<br />
D~7654 3210<br />
---------<br />
.... BBBB<br />
++++- Select 8 KiB PRG-ROM bank at CPU $A000-$BFFF<br />
<br />
==Nametable Mirroring Select ($FFFF, write)==<br />
Mask: unknown<br />
<br />
D~7654 3210<br />
---------<br />
.... M...<br />
+---- Select nametable mirroring type<br />
0: Vertical<br />
1: Horizontal<br />
=Notes=<br />
* Save data is not retained.<br />
* The conversion retains all writes to the FDS sound channel registers. An emulator could provide the expansion sound channel even though the original cartridge did not.</div>NewRisingSun