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Sonic & Tails' Mappings - Sonic 3:

The format for Sonic & Tails' mappings is no different to anything else, but if you want to edit them in any meaningful way, you'll need to know how his pattern load cues work:

NNNN - ( ST - TT )

As before, NNNN only appears once for each sprite, and ( ST - TT ) appears however many times NNNN says.

S:
This nybble describes the number of 8x8 tiles which need to be loaded from the ROM to the RAM.

The number of tiles you want, minus 1 = S

TTT:
These three nybbles describe where in the ROM you want to start reading from. 000 is the first 8x8 tile of Sonic's patterns.

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Mappings & Pattern Load Cue Locations:

140FE0 - Sonic (mappings)
1428AC - Sonic (loadcues)
143488 - Tails (mappings)
144456 - Tails (loadcues)
144BB8 - Tails' tails (mappings)
144D74 - Tails' tails (loadcues)
147E30 - Sonic snowboarding (mappings)
147F8A - Sonic snowboarding (loadcues)
148020 - Snowboard (mappings)
148128 - Snowboard (loadcues)