How can I make my own microcontroller? I\'ve done some work using GAL chips and programmed a chip to do simple commands such as add, load, move, xor, and output, but I\'d like t
You may want to have a look around OpenCores.org, a "forge" site for open source IP core development. Also, consider getting yourself a development board like one of these to play around with.
Much of the tools ecosystem revolves around VHDL, although Avalda is working on tools to compile F# for FPGAs.