Get yourself a FPGA dev board and get cracking. You can get useful ones for like $50 or less. I've made a couple of simple soft-CPUs for self-designed instruct

Get yourself a FPGA dev board and get cracking. You can get useful ones for like $50 or less. I've made a couple of simple soft-CPUs for self-designed instruction sets, aling with some compilers. Really fun to try to think of which instructions to include and how it interacts with the compiler.