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Advanced NES ROM Utility - Split / Expand / Patch / Fix Checksum

Miscellaneous

Description:

This is an easy to use utility for performing some tasks on NES / FC ROMs!

Following functions are included:

  • Read iNES, NES2.0 and Nintendo header information
  • Fix checksums in Nintendo header
  • Split into single ROM files for burning (PlayChoice-10 support)
  • Split into equal sized parts for burning (VS Unisystem support)
  • Expand ROM (requires Nflate)
  • Apply IPS, UPS, BPS, BDF and Xdelta patches

Notes:

  • Remember that only just about 33% of all NES ROMs contain a Nintendo header (which often is malformed or contains wrong information)
  • Fixing checksums only works if a Nintendo header is present
  • Expanding requires Nflate to be in the same directory as Advanced NES ROM Utility
  • Requires .NET Framework 4.5

History:

  • Sep 11 2022: v1.1 - completely reworked mapper and submapper lists based on NesDev information, fixed bug with showing CHR RAM sizes, some minor bufixes and usability improvements in ’splitting into equal parts’ form
  • Sep 06 2022: v1.0 - added submappers, fixed some bugs when splitting into equal parts, some other minor bugfixes - tools should be final for now!
  • Sep 05 2022: v0.9.1 - added splitting into equal parts, show mapper plane (NES2.0) when mapper is out of basic range, added some mappers
  • Sep 04 2022: v0.9 - initial release

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