input files

MIF is a memory initialization file, so you don't want to use that if you aren't using memory. What a MIF file would do for you is pre-load a memory block with a known pattern during configuration (start-up). If you are not already on this track, it sounds like what you want to do is open a schematic page and put down a couple simple blocks. The schematic file type is bdf, for block diagram. If you are looking to do something realy simple, like a multiplier, you can open one of these files, put down a couple input and output connections, and drop a multiplier down, and wire them together. This is similar to the lab exercises Altera has new users do to get familiar with the tool. If I'm address the wrong question, feel free to elaborate.