John's personal wiki for tech things he's trying to understand or store in a place that isn't likely to go away. Stuff here may make it into future videos, or be related to existing videos. The structure of this wiki will change a lot, so search is your best option to find something. You can use wildcards for search as well.

It's why you're probably here.

• Commodore Amiga

• Commodore 8 bit computers

• Atari ST

• https://oldvcr.blogspot.com/2023/02/dusting-off-dreamcast-linux.html

• https://github.com/Scalibq/DOS_SDK

• Badger 2040

• Paintbox

• Linux

• Motorola 68000 Series

• Assembly Language

• Beej's Guide to Network Programming
• Non-blocking socket connect in C
• Non-blocking socket bind in C
• Non-blocking socket recv

inet_addr returns -1 (INADDR_NONE) on failure, which is 255.255.255.255. Use inet_aton if you want something more robust.

• hostent structure for getaddrbyname

• Active vs. Passive FTP
• https://www.ibm.com/support/pages/ftp-deeper-look-passive-file-transfer

• Technologies
• Liquidsoap streaming language/system
• MySQL/MariaDB database server
• MiSTer FPGA emulation system
• git revision control system
• rsync file transfer utility
• DokuWiki file-based wiki software
• Anki flashcard learning system
• Krita illustration software
• Mixxx DJ software
• OBS streaming studio

My own checklists/approaches for dealing with these scenarios. Do with them as you will.

• Detect and swap out a failing Linux hard drive

If you want to take a void pointer then use it for building a structure of objects of the same data size, recast it:

snippet.c

void *myRAM;
 
// allocate the ram
 
short *shortInterface = (short *)myRAM;
shortInterface++; //=> incremented by 2

Old blog posts

This wiki will be updated and reorganized often as sections get too big. The goal is to have many smaller pages that are easy to search for and link to, rather than large pages that are hard to scan. Remember to use wiki-style links to allow for page renames!