Program compatibility: Difference between revisions

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| [http://www.romhacking.net/trans/139/ Final Fantasy II (English translation, Neo Demiforce)]
| [http://www.romhacking.net/trans/139/ Final Fantasy II (English translation, Neo Demiforce)]
| Version 1.02 and 1.03 — graphic glitches during intro, no text during prologue (blue screen without text).  Caused by incorrect setting of nametables in [[PPU_registers|$2000]], misuse of [[PPU_registers|$2005]], and reading of [[PPU_registers|$2002]] to detect VBLANK.  The issue [http://forums.nesdev.org/viewtopic.php?p=53111#p53111 was discussed in some detail].
| Version 1.02 and 1.03 — graphic glitches during intro, no text during prologue (blue screen without text).  Caused by incorrect setting of nametables in [[PPU_registers|$2000]], misuse of [[PPU_registers|$2005]], and reading of [[PPU_registers|$2002]] to detect VBLANK.  The issue [http://forums.nesdev.org/viewtopic.php?p=53111#p53111 was discussed in some detail].
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Revision as of 04:20, 11 September 2014

This page describes defects in homebrew games. For defects in games prior to 1996, see Game bugs.

Many older programs that are passed off as NES programs were tested exclusively with older, less accurate emulators, and do not work on a Nintendo Entertainment System.

Compatible programs

See also: Projects

As the PowerPak became more widespread, it became easier for programmers to test a daily build on an NES. Games developed in the PowerPak era include

Almost compatible programs

Title Problem Description
Final Fantasy II (English translation, Neo Demiforce) Version 1.02 and 1.03 — graphic glitches during intro, no text during prologue (blue screen without text). Caused by incorrect setting of nametables in $2000, misuse of $2005, and reading of $2002 to detect VBLANK. The issue was discussed in some detail.

Incompatible programs