Recently Updated Pages
Manuals & Books
Z80 CPU Hardware User Manual CPU Peripherals Software Z-80 Assembly Language Programmi...
Libraries & coding resources
https://github.com/Zeda/Z80-Optimized-Routines - Various routines https://github.com/Zeda/z80f...
Z80 in the wild
TI-84 Plus - graphing calculator made by Texas Instruments ZX Spectrum MSX Oberheim OB-8 - ...
RC2014 Cards Resources
https://hackaday.io/project/159057-game-boards-for-rc2014 https://www.youtube.com/watch?v=1K...
RC2014 USB UART
Using supplied UART [ 43.140568] usb 3-2: new full-speed USB device number 4 using xhci_hcd [...
LUKS encryption
Set up new encrypted volume Format cryptsetup luksFormat --type luks2 /dev/<dev> cryptsetup lu...
OS Setup
Swap file On Btrfs: btrfs subvolume create /.swap truncate -s 0 /.swap/swapfile chattr +C /.s...
Rsync
Copy content preserving attributes of /foo to /bar: rsync -aXHA --info=progress2 --stats /foo/ /...
Homarr
Restore board from backup Find default.json (or other board) in YH backup file: apps/homarr/back...
Workbench
WHDLoad Uses .Slave files that define how to load disk files and when for disk based games and d...
Troubleshooting
Known problems Default G/W for Igor Igor can't find it's local network: hxd@morgana ~/net> ssh...
Casio FX-870P
Manual (Japanese with English commentary): CasioVX-4-Manual-Peter-Rost.pdf Programming in C N...
Ann: Kodi
SSL certificate for web UI Put certificate in /storage/.kodi/userdata/server.pem (pem) and key...
Smart switch ESP8266EX
Sonoff WiFi smart switch Original firmware: fwbackup.bin Installing alternative firmware: h...
PKI
Setup Put openssl.conf: openssl.conf distinguished_name = $ENV::DN x509_extensions = $...
Igor: Zabbix
Templates Synology DiskStation SNMPv3 (modified): Synology DiskStation SNMPv3.yaml Switch Int...
Z-Modem
Use screen command to connect to BBS with telent. .screenrc zmodem catch !!! rz -vv -b -E
Mount image files with loop dev
Mounting file systems from loop device: losetup -f <path to .img file> dmesg | tail -n 1 # see ...
STM32 Nucleo
Board https://en.wikipedia.org/wiki/STM32#Development_boards NUCLEO-F302R8 board for STM32F30...
Igor
Network After reboot need to add default route manually for Igor to find access to internet. ip...