# Glitch City Laboratories Archives

Glitch City Laboratories closed on 1 September 2020 (announcement). This is an archived copy of a thread from Glitch City Laboratories Forums.

You can join Glitch City Research Institute to ask questions or discuss current developments.

You may also download the archive of this forum in .tar.gz, .sql.gz, or .sqlite.gz formats.

## Emulation &amp; ROM Hacking

### Unknown opcodes - Page 1

Previous Page

- 1

Next Page

#### Unknown opcodes

Posted by: PokemonPichu
Date: 2006-08-17 17:03:04
Yeah, what is that? When I use the Yellow Missingno. encounter code and find one, I often get the error message: Unknown opcode ed *insert number here*. It's annoying. Gameboys don't show that error, so why should emulators do that? Why not just emulate what will happen on the Gameboy?

#### Re: Unknown opcodes

Posted by: xparasite9
Date: 2006-08-19 16:13:07
because it crashes the emulator, not the game.

#### Re: Unknown opcodes

Posted by: Abwayax
Date: 2006-08-19 16:49:23
Yeah, I hate when that happens too. I don't see why it couldn't ignore the unknown opcode in question like a real Gameboy would.

#### Re: Unknown opcodes

Posted by: Torchickens
Date: 2006-08-22 10:37:04
Because then you could load any file format like microsoft word documents and jpegs
you can attempt to do that and you get an error message just type in * then enter and you can open every file.
Previous Page

- 1

Next Page