I've been updating IViewer recently. v1.1 is out now after I received a bug report by a user named Sean. v1.1 also removes the ram limitation, you can run the app even if you have 0 bytes of ram available. The next version will include an Easy Converter that will allow someone to just load an image and create an appvar without having to format the image or change any settings. The image will use a default 256 color palette based off the mac os palette. Then there will be the Developer Converter that will allow all settings to be manually adjusted. This can be used for viewing sprites/backgrounds/titles and can create an assembly file to be added straight into the program. I also plan to add huffman compression and I was thinking about including an IViewer assembly program that can be called by BASIC and other assembly programs to display title screens and images for them. I don't know if it would be fast enough to be used for sprites, but I'll create some speed test videos to help judge that. The N,X, and Y variables will be used to determine image and location. Does anyone have some requests or suggestions?

*Thanks to tr1p1ea, the Easy converter will now use his convention removing the need to even have a palette at all. His palette is better than both Windows and the Mac OS. Congratulations! tr1p1ea beats Bill Gates and Steve Jobs and his name will appear in the app somewhere (probably replacing my blog address)!

Well it is an APP so perhaps openlib/execlib can be used?

As for the colour idea it actually belongs to a few people, it was one of those ideas that was being thrown around in early 84C discussions. So credit to me just wouldnt be right .

The parser hook is what lots of ASM libs use on the 83+ etc since you can intercept certain tokens and do with as you wish.

The only problem is that it can be difficult for hooks to coexist.

On the 84+ and on there is OpenLib and ExecLib which can be used to call library routines in an APP from a BASIC program: http://tibasicdev.wikidot.com/execlib

tr1p1ea: that sounds like the route to take, can assembly programs call library routines as well?

DJ Omnimaga: Thanks for the links, I had found the 160x240 mode post and I had also read about 'z addressing' but I could never find the root of it and I didn't know what people were talking about. I never seen it in the data sheet, I'm guessing its something for BASIC?

*Sorry* I'm not replying fast enough and I had to change things around a little.

Yes ASM programs can call library routines quite easily. I have example code at home somewhere, ill see if i can find it.

Oh, you finally made a topic about this?
Now I can tell you how awesome it is: It is awesome

Some new equates for the library hook on the ti84+c:
$4f48 = enable lib hook
$4f51 = disable lib hook
$9e61 = hook address

I'll add it to WikiTI soon.

I have removed the huffman compression (a few days ago), I didn't realize that Jimmy Mardell's compressor is 64k max. Compressing an image in parts barely compresses better than RLE so I just took it out for the time being. Pucrunch has the best compression ratio but its compressor is also limited to 64k. I will come up with a better solution later. I was wondering, is xLib an actual library or does it use the parser hook? (in other words, did tr1p1ea already have the equates I found?) DJ, I'm almost finished with the latest version of IViewer. I've been adding library functions so that it can display images from TIBASIC and asm programs. I suck at BASIC programming, so I def need some feedback on it. I haven't finished it completely yet (about half way done) but here's a list of the functions I'm implementing or already have:
 
Initialize(version)
DrawImage(x,y,image name)
DrawSprite(x,y,image name)
FillScreen(red,green,blue,screen)
CopyBackground(x,y,width,height,id)
PasteBackground(id)
WriteText(x,y,text)
HideScreen()
ShowScreen()
LowRes()
HighRes()
LowColor()
FullColor()
InvertScreen()
SwitchScreen()
OSDefaultScreen()
GetVersion()

I can't wait till I test it out, I pray it will be fast enough  I will release it today no matter how far I get, maybe it will be finished so I can make a video demonstrating what its capable of.