Kalevi Kolttonen computers and logic page


Programming

Sendmail support for Cyrus IMAP IGNOREQUOTA LMTP extension

Automated eBay searching using ebaysearch script

B-em v2.2.3kk Acorn BBC Micro emulator (updated on February 21st, 2018)

Studying VICE 3.1 (svn r34431) Commodore 8-bit emulator (updated on February 10th, 2018)

SELinux demonstration using a malicious backdoored daemon (updated on March 18th, 2018)

Studying openMSX 0.14 emulator (updated on June 17th, 2018)

How to become a programmer? (some advice for beginning programmers)

Segmentation faults and core dumps on Fedora Linux 28 (practical advice for C programmers)


Retrocomputing

Commodore 16 herää henkiin (in Finnish)

Sekalaista juttua vanhan ajan tekniikasta ja peleistä (in Finnish)

Manic Miner on C16 and C64

How I experienced the home computer revolution of the 1980s in Finland

Introduction to retrocollecting

Boulder Dash

Boulder Dash Construction Kit

Commodore 64 - Tasavallan Tietokone kirja on julkaistu (in Finnish)

Miksi sama konekieliohjelma ei toimi koneissa, joissa on samantyyppinen prosessori? (in Finnish)

Kalevi Kolttonen's retrogame collection samples (mostly a bunch of clickable thumbnail images to remind myself of what I already have)

Amstrad CPC emulation on Linux using MAME (step-by-step tutorial on how to use MAME for Amstrad CPC emulation)

Atari 8-bit emulator atari800 for Fedora Linux (step-by-step tutorial on how to install atari800 emulator using my RPMs)

ORIC 8-bit emulator Oricutron for Fedora Linux (step-by-step tutorial on how to install oricutron emulator using my RPMs)

Colecovision emulator ColEm for Fedora Linux (step-by-step tutorial on how to install colem emulator using my RPMs)

Sega Up 'n Down arcade coin-op game and its 8-bit ports (running Up 'n Down on Fedora Linux)

Manic Miner on ORIC (two essential training hacks for practicing this great ORIC release and some photos of the original tape release)

Manic Miner on BBC Micro (detailed explanation of figuring out two essential training hacks for practicing this great BBC Micro release)

Trollie Wallie platform game (this rare floppy disk release completes my C64 game collection!)

Dragon 8-bit emulator xroar for Fedora Linux (step-by-step tutorial on how to install xroar emulator using my RPMs)

Commodore 64 Wizard of Wor with Magic Voice speech cartridge (testing with real Commodore hardware)

Tekniikan Maailma 16/1983 ORIC-1 review (review in a Finnish technical magazine, summary in English)

Tekniikan Maailma 20/1982 Atari 400 review (review in a Finnish technical magazine, summary in English)

Atari tools (atr) for Fedora Linux (Atari disk image utility, RPM and source RPM)

Franny for Fedora Linux (Atari disk image utility, RPM and source RPM)

Starting Atari 800 development on Fedora Linux (step-by-step tutorial on how to set up a cross-assembler environment for Atari 800 development on Fedora Linux)

ORIC Manic Miner videos (video tutorial on how you could complete the second half of ORIC Manic Miner)

Sega SC-3000 Sindbad Mystery (reminiscing old times in a true retro spirit using MAME. Also includes nice photos of real Sega SC-3000 software and hardware!)

Tekniikan Maailma 10/1984 ORIC Atmos review (review in a Finnish technical magazine, summary in English)

Tekniikan Maailma 2/1985 MSX comparison (MSX comparison review in a Finnish technical magazine, summary in English)

ORIC Atmos (mainly some photos of my boxed ORIC Atmos 8-bit home computer)

Tekniikan Maailma 3/1985 Middle-priced Microcomputers (middle-priced 8-bit microcomputers comparison review in a Finnish technical magazine, summary in English)

CP/M on Spectravideo SVI-728/SVI-707 using openMSX (step-by-step tutorial on how to get SVI-728/SVI-707 CP/M running under openMSX emulator)


Fedora Linux source RPMs

Sendmail 8.16.0.19-2 alpha/beta snapshot with experimental FFR (For Future Release) DANE support enabled

To enable DANE at run time, you must append this to the /etc/mail/sendmail.mc

LOCAL_CONFIG
O DANE=true

Finally generate the /etc/mail/sendmail.cf and you are ready to go. NOTE: To reiterate, this is a Sendmail testing release so do not use in production!