DuckTales: DuckTales UNROM to MMC3 Hack is a modification for the Nintendo Entertainment System that transitions the original DuckTales game from UNROM to MMC3 format. This hack enhances compatibility and performance, allowing for improved game functionality on actual NES hardware. The patch includes necessary code adjustments and updates to facilitate the conversion while preserving gameplay integrity.
Here is a patch that will convert the Ducktales mapper from UNROM to MMC3.
5/26/12
UPDATE 7/16/13
infidelity
Duck Tales UNROM to MMC3
MMC3 Bankswap Routine To Insert Into ROM = 0A48A9068D0080688D0180090148A9078D0080688D018060
$1FFF1 = 9DE5FF, this is what is storing into the tables from $1FFF5-B. Change that 9DE5FF to 20#### which JSR's to where your bankswap routine is located in the rom.
Done!
UPDATE 7-16-13
Now works on an actual NES!
There is a swath of free space located from $1F902-$1FA4E (14D bytes) I did the best play thorugh that i could do, so i hope this is nothing important. I'll include the .cdl file, it was done with FCEUX 2.2.1.
$1FA08 = 60
$1FA09 = 0A48A9068D0080688D0180090148A9078D0080688D018060
$1FFF1 = 20F9F9
$1FF41 = 2011FA EA
$1FA21 = A2058E0080BD24FA8D0180CA10F4A99085FF60000204050607
$1FA3A = 0000000000000000000000000000000000000000
END
UPDATE 7/20/13
ISSUE REGARDING MIRRORING
Need to add Mirroring Mode within Reset Vector. For Duck Tales it starts as Vertical
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