05 Jan 2020 - 1 min read
In my last post I covered off the full design for the decoder card so all that remains is to get it soldered up and tested. As before I’ve put a video together which …
22 Dec 2019 - 4 min read
Decoder Design: Schematic & PCBs
I’ve almost got everything I need now to get my relay computer to do branching. The hard work of designing and constructing the sequencer and controller units is …
07 Jun 2015 - 3 min read
Decoder Construction: MOV-8, ALU & SETAB
In a change from prior form I’m combining the construction and testing of the next card in to a single post this time. Partly because this card is a nice easy one but …
04 Jan 2015 - 5 min read
Decoder Design: MOV-8, ALU & SETAB
In my last post I introduced the design for the instruction register which holds the current 8-bit opcode that the computer is executing. The next card to design is the …