FPGA / RISC-V examples collection

• riscv-edu - A very simple RISC-V (rv32im) for iverilog simulator.
• riscv-omdazz - A very simple RISC-V (rv32im) for OMDAZZ board (EP4CE6) able to run Linux (nommu, 32 bit, ima).
• riscv-omdazz-emul - RISC-V (rv32im) board JavaScript emulator. Able to run Linux! Demo: https://b-dmitry1.github.io/fpga-things/riscv-omdazz-emul/
• mitx486 - mITX computer motherboard with FPGA and PC-100 DIMM up to 512 megabytes. Originally made for 486 CPU, now redesigned for RISC-V.