More Bioinformatics
After FASTA, I got interested in gff3. The link to the grammar for this file is here: antlr/grammars-v4. You can read about gff3 here.
After FASTA, I got interested in gff3. The link to the grammar for this file is here: antlr/grammars-v4. You can read about gff3 here.
After all, now that we have wireless thermostats, door locks, outlets, dimmers, alarms, garage doors, and motion sensors, it only makes sense to publish events onto a Service Bus. In my case I used Mosquitto in a FreeBSD jail as my broker. My home controller is a HomeSeer. There are MQTT plugins available, but I…
There are new release builds for some of the more widely used khubla.com libraries, resulting for patching for the log4j vulnerability. They are: ParadoxReader <groupId>com.khubla.pdxreader</groupId><artifactId>pdxreader</artifactId><version>1.6</version><packaging>jar</packaging> OLMReader <groupId>com.khubla.olmreader</groupId><artifactId>olmreader</artifactId><version>1.9.0</version><packaging>jar</packaging> JVMBasic kPascal
Unix version 0 was written in 1963 by Ken Thompson, on a PDP-7. Recently, the source code code Unix V0 has been discovered, and you can read it here, as pdf scans of printouts. You can read about the discovery, and the effort to boot Unix V0 on a real PDP-7 here. The project home…
Back in the dark ages (the 1980’s), people like myself coded on Apple][ computers. If you were good you coded in Applesoft BASIC or Integer BASIC. If you were really geeky you coded in Assembly language on the 6502 processor. The Apple][ OS was coded in assembly language, so if you really wanted to understand what…
Recently I had reason to get interested in process modelling. Ultimately I ended up writing an Antlr4 grammar for Modelica (here), but in the mean time I came up with SML (Simple Modeling Language). The Antlr4 grammar is sml.g4. The characteristics I wanted in my own modeling languages were: Ability to define models as text files…
I’ve recently become interested in how the i386 boot loader works. There is an excellent example of a boot loader here, and another here. Some simple protected-mode code which implements a kernel capable of writing a line of text, is here. FemtoOS, is the culmination of combining code from all those, and building a simple…