Gameboy Development Forum

Hi, there, I'm turboboy215, and I'm new to Game Boy programming.
After I created several "Hello world" programs, I decided to try and display a full-screen image.

So, I followed this tutorial:
http://gbdev.gg8.se/wiki/articles/Displ … een_images

Here is the original image:
http://firemariofireluigi61.deviantart. … -344301114

Using GIMP, I reduced the colors just like the tutorial said before scaling it, but it ended up looking horrible. I also tried dithering, which didn't look so bad unscaled, but it was terrible scaled. I tried scaling it first and then reducing the colors, with and without dithering, but it still didn't look good. So, I got an idea.

I scaled the image without reducing the colors, saved it as a BMP file, and converted it using the Game Boy Toolkit Preview at the following link (which never got past preview):
http://www.yvan256.net/projects/gameboy/

I didn't have to choose the scaling, so I just adjusted the knobs. Since it saves in a different format than what I needed, I saved the new picture as another BMP.

Using GIMP again, I saved it as a PCX.

Then, I converted it using PCX2GB, and saved it as a tile and map file, named tile.c and map.map, which worked, and ended up with a file identical to the previous BMP.

Then, I copied the exact code, using a file called main.c, in the correct directory, and then tried to compile it using GBDK, with the following command:
lcc -o image.gb main.c


However, every time it tries to convert, it freezes for a long time until it finally responds and says "Abnormal termination".

What's wrong? Is it the image? Is it the conversion? I've got all the files in the correct location, the bin folder of GBDK, so it's definitely where it should be.

Thank you for your help.