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gufranco / snes-sdd1-python

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SNES S-DD1 decompressor in Python. Checked against the snes9x reference decoder on 4,000 golden vectors covering all 16 plane and context combinations, generated from pseudo random input so the evidence ships without any game data

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  • Updated Aug 21, 2026
  • Python

gufranco / snes-rom-image-python

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A SNES cartridge image as a file rather than an address space: strips copier stubs, joins split sets, identifies a dump by digest, and rewrites the header to declare no coprocessor with the checksum recomputed across every mirror. Measured against 7,317 real cartridges.

emulation reverse-engineering checksum snes sha256 coprocessor super-nintendo rom-hacking preservation flash-cart sd2snes retro-gaming no-intro hirom star-ocean game-doctor s-dd1 cartridge-header fxpak rom-patching
  • Updated Aug 21, 2026
  • Python

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