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