Two years ago, the Houston FIG Chapter developed a microcomputer project for educational purposes. We set out to build a single board computer and then write a Forth system for it, to give the participants a first-hand experience with developing a hardware/software combination from scratch. For a variety of reasons, we selected the RCA 1802/1806 CMOS microprocessor.
/lp/association-for-computing-machinery/an-rca-1802-software-simulator-8cxnBesgn0