Eighty Twenty

This is the third part of a series of three articles on modelling actor-like systems 1 2 using PLT Redex . (The first sketch of this part of the series was written in August 2016, a day after the...

Back in 2002/2003, Ian Piumarta wrote an "essentially complete" VT102 terminal emulator for Squeak Smalltalk . 1 Here are his unmodified original changesets, encoded using the MacRoman character set; these do not load directly into current Squeak images .

Smalltalk programs strictly alternate between data and behaviour. Messages (the only kind of data in Smalltalk) are implicit , constructed fresh at each point in the program method call syntax is used, and are shallow , meaning that the slots in each mess

Usually, method lookup results in a single body to execute. This is analogous to the way pattern matching usually tries patterns in order, selecting just one continuation to execute. What if, instead, we allowed all matching patterns from a bunch of alter

A fantasy abstract is a short piece of writing in the style of the abstract of an academic paper presenting the outline of a piece of research that has not (yet) been done. It acts as inspiration, as a means of communicating an idea, and as a place to nuc

I always forget how to do this, so I'm writing it here in part as a reminder for myself next time I need to do this. These instructions are for using daemontools and daemontools-run packages on Debian. Create a directory /etc/service/tonyg-services Create

Small experiments in the use of libliftoff to try out the modern Linux graphics stack drove home quite how slow DRM "dumb buffers" can be, but also that it's reading that's slow, not writing . Reading from a "dumb buffer" on my AMD GPU is orders of magnit

" Erlang supports change of code in a running system. " However, the details are a bit fiddly. Here's a cheat-sheet I used recently for a simple TCP service written using Erlang. My program was a single module, running outside of any OTP application conte

Back in June, I made a quick-and-dirty attempt to get the big-bang model of functional UI running in Processing 4 . Unfortunately Processing uses a dialect of Java predating introduction of Java Records (JEP395) , so I, er, creatively broke out m4 as a pr