So I was making a texture edit, and when I went to test it I loaded a save state to skip the cutscene.

A save state, from when I was testing some ASM stuff.

So I load it, walk left then right on the map and enter a level, instead of entering the level I get a big blue screen saying ram viewer .

It has random green and white letters on the top screen, nothing on the bottum.

What is this? why is it here?

EDIT:
Screenstuff

EDIT2:
I found this, it looks simillar.
http://tcrf.net/NSMB#Crash_Dump_Screen

Before people go excited "OMG new crash screen discovered!!": it's NOT in the original game.

It's a RAM viewer I added to the crash screen, it's included in the ASM patch template, that's why you're seeing it.
https://github.com/Dirbaio/ASMPatchTemplate/blob/master/source/ramviewer.cpp

It's useful in case you get a crash, you can go look at stuff in the RAM to see what went wrong.

Controls:

Select/Start: switch between the original crash screen and the RAM viewer.
Left/Right: Select a different digit in the address
Up/Down: Increment/decrement that digit.

I wasnt in a rom with asm, I loaded a save state from a rom with asm.

The savestate contains an entire copy of the game's RAM, including the code.

When the ROM starts, the game's code is loaded in RAM (arm9/7.bin and a bunch of overlays). So if you reload a savestate from an ASM-hacked ROM you'll get the ASM-hacks.

Or you could get crashes because the game is mixing hacked an non-hacked overlays.

Don't use savestates when ASM hacking

ah, ok I understand.
Thanks for explaining

You can save mario's exact location on the map, when you have beaten the game. (With the pause screen).