don bright donbright

(This is a translation of the original article in Japanese by moratorium08.)

(UPDATE (22/3/2019): Added some corrections provided by the original author.)

Writing your own OS to run on a handmade CPU is a pretty ambitious project, but I've managed to get it working pretty well so I'm going to write some notes about how I did it.

Here's a list of mildly interesting things about the C language that I learned mostly by consuming Clang's ASTs. Although surprises are getting sparser, I might continue to update this document over time.

There are many more mildly interesting features of C++, but the language is literally known for being weird, whereas C is usually considered smaller and simpler, so this is (almost) only about C.

1. Combined type and variable/field declaration, inside a struct scope [https://godbolt.org/g/Rh94Go]

struct foo {
   struct bar {
 int x;

Ubuntu 16.04

install cc65

mkdir ~/other
cd ~/other
git clone https://github.com/cc65/cc65
cd cc65
make

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Grr this took hours to figure out. I was trying to install MJPG-streamer and running VLC command lines and all this crap but nothing worked.

First install motion:

~> sudo apt-get install motion

Then create a config file:

~> mkdir ~/.motion

~> nano ~/.motion/motion.conf

	#include "Dactyl.h"
	#include "action_layer.h"
	#include "eeconfig.h"

	extern keymap_config_t keymap_config;
	#define _QWERTY 0
	#define _NUMLAYER 1
	enum custom_keycodes {
	QWERTY,
	NUMLAYER

	package main

	import "math/big"
	import "fmt"
	import "time"

	func main() {
	fmt.Printf("Hello, world.\n")
	start := time.Now()

	##########################################################################
	## runscad.py
	##
	## Run an openscad file once or n times and save shape output to file(s)
	##
	## by Runsun Pan (2015.9.25)
	###########################################3##############################
	import sys, os, re

	narg = len(sys.argv)

	while {
	let x = foo();
	bar(x);

	x != 0
	} {}