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 [[PPUCTRL]], misuse of [[PPUSCROLL]], and reading of [[PPUSTATUS]] to detect VBlank.  The issue [http://forums.nesdev.org/viewtopic.php?p=53111#p53111 was discussed in some detail]; the author has revamped the entire intro as of March 2015 (not yet released).
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Revision as of 01:51, 16 March 2015

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 PPUCTRL, misuse of PPUSCROLL, and reading of PPUSTATUS to detect VBlank. The issue was discussed in some detail; the author has revamped the entire intro as of March 2015 (not yet released).

Incompatible programs