I just plugged the USB cable in the PC and pressed F1 in the calculator, which is for USB mass storage. I dragged it in directly from the .zip file, does it have any significance?

Oh, I thought I had to put it on the @MainMem folder.
Now it works, thank you so much!

Are you going to fix the crashing? It seems like this project is DEAD.

I do. Currently I do the research - where to find the needed RAM. I have some ideas,e.g. use IL memory and MERAM. I need as detailed map of memory as possible,

Currently I know these memory areas (VRAM excluded)

0x880A2AD5..0x880CB2D5:SaveVRAMBuffer 165888 bytes, unaligned address
0x880F0000..0x8815FFFF: system stack (512 kB)
0x88160000..0x881DFFFF: add-in stack (512 kB),
0x881E0000..0x881FFFFF: heap. (128 kB)
0xE5200000..IL memory - 16k of on-chip memory
0xE8080000..MERAM - 128k of on-chip memory

Do you have more details ?

I haven't seen anything from this forum recently, I hope this Doom thing gets some fixes later on. DJ_O , you probably have the Casio fx-CG20, not the fx-CG10, so that's probably why it's not crashing. The game gets past level 1 and occasionally 2 but crashes always at the end door of level 2. This game is not much fun without more than 2 levels. It's cool you got it working at all, but could you (or someone else) please continue the project. please make the AC/ON save the game so when the game crashes, there's a save.

Whenever I finish the first level, it says "Error: Z malloc" and I cannot exit without pressing the reset button.

Well, saying that the last reply was more 2 months ago. I think that this project.is really dead after all. :'(

I hope the project is hibernated only.

Do you plan to take it up again, or are you hoping that someone else will?

BTW: do you want to help me ?

Lol, not at this point. I don't know enough C.

I was just asking because I was wondering.