Abel is supported by Xilinx's Windows version only (of the free Webpack.) I have learned and used Abel, because that was the supported language in the early free versions of the design software by Lattice Semiconductor. Verilog and VHDL have become supported later, but the pay-versions propably had larger support much earlier.
You can use emulators to run old software. :idea: I have VMWare on linux to run NT4.0. :crazy:
