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...plest form. From this list, you can drill down to a more specific section of the selected category. * [[List of games with significant regional differences]]

...>$0000</tt> to <tt>$7fff</tt>, i.e., from outside of PRG-ROM. <!-- To find games like this: create a breakpoint in FCEUX Debugger. --> * ''The 3-D Battles of WorldRunner''

01 Some Namcot 163 games use expansion audio, which uses a common mixing circuit: R1 appears to be a set of values which may vary in each board (4.7k, 10k, 15k, 22k, 33k).

...es for the Famicom, though, it is common to OR together the D1 and D0 bits of a joypad read to allow players to use external controllers as substitutes f ...limited in functionality compared to the console's expansion port. Because of this, many controllers are not compatible with these adapters.

The following is a list of games that use the Famicom's expansion audio. * Link no Bouken (Zelda II: The Adventure of Link)

Some of these instructions are useful; some are not predictable; some do nothing bu ...C02, HuC6280, 65C816) were free to implement new instructions in the place of the unused ones.

Because the VRC2 is mostly a subset of the VRC4, relevant games are often emulated as VRC4 only. iNES mappers Example games:

There are two types of '''mirroring''' on the NES: * '''[[#Nametable Mirroring|Nametable Mirroring]]''' describes the layout of the NES' 2x2 [[PPU nametables|background nametable]] graphics, usually achi

At the very least the following games depend on hard-to-emulate or just obscure behavior. (If you're looking for ...e Nation'' (U): These refer to CHR ROM banks outside their size. A CHR ROM of the correct size will wrap the addresses correctly by discarding the most s

...OMs and RAMs in the cartridge. In most cartridges, this involves some form of bank switching. ...that selects which part of the palette is used for a given sprite or area of the background.

There are two extensions of the NSF format: ...dress and period values are little endian. For example, an NTSC play speed of <code>FF 40</code> means $40FF, or 16639 microseconds.

* [https://github.com/freem/asm6f asm6f] - fork of asm6, providing support for illegal opcodes, NES 2.0 headers, symbol files * [https://github.com/dasm-assembler/dasm dasm] - by Matthew Dillon of the DragonflyBSD project, extended and maintained by various other authors.

This is a historical representation of the old NESDev main page.<br/> All of this material is out of date and unmaintained.<br/>

This is an updated version of "Nintendo Entertainment System Documentation" by Jeremy Chadwick, aka "koit ...sier to understand, particularly for programmers new to the NES, than some of the other, more technical documentation on this wiki.

| text = '''Some of the download links below are currently dead, but many have been archived at ..._timing_tests.zip branch_timing_tests] || blargg || These ROMs test timing of the branch instruction, including edge cases ||

A list of NES projects. Feel free to add to this list. Creating articles for individual games and projects is discouraged. Please link to a thread or an official page in

Listed are games that have been tested on NES or Famicom hardware and verified to look wrong ...ercial games. For an overview of common compatibility problems in homebrew games, see [[Program Compatibility]].

...th values used by the BIOS, and PRG RAM is uninitialized, except for parts of it which have files loaded in. ...to [http://segaretro.org/TradeMark_Security_System what Sega used on some of its consoles]: