morris mano basic computer
I designed that computer very long time ago, but with basic gates
i.e. i designed the ALU, CU, BUS and it controllers, ... etc. and instructions conditions are also made all in gates, you can translate it very easyily to VHDL or VeryLog code if you need..
I think it is now very easy for you to do..
I willl try to find it, and if i found it i will upload ...
Added after 51 minutes:
Here's a simplified design steps as well as the final desing of the overall basic computer,
You can take that final design, and translate it into VHDL code in less than 15 mins..
I am sure that you can,
I hope that helped,
Regards,