01 Dec 2025 - 5 min read
Talk about raking over old coals! Well, for those of you who follow my YouTube channel this’ll mostly be old news but here I am, six months after the event, finally updating …
27 Nov 2022 - 10 min read
Assembling an assembler - token scanning
In the last episode of this mini-series I explained about how an assembler’s job is effectively to convert a program written in a language a human programmer can …
14 May 2022 - 9 min read
Assembling an assembler - overview
To make my relay computer do something interesting (or anything at all) it needs a list of instructions held in memory. Each instruction consists of an 8-bit value called an …
24 Jul 2016 - 2 min read
It’s been a bit quiet on the relay computer front again for a while … well it is summer after all and there’s no point staying inside the house tending to …
07 Nov 2013 - 1 min read
In the last post I promised to reveal the planned instruction set for the computer and here it is (pdf file). This should be viewed alongside the architecture diagram which …