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Jan-Arendt Klingel

Informationssicherheit, Retro Computing

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Retro Computing

Repairing unresponsive keys on a C128D

I just finished a repair of my Commodore C128D keyboard. Both the left shift and the space key did not work anymore. After opening up …

Von Jan-Arendt Klingel
Veröffentlicht amJanuar 24, 2021
Security

Is Quantitative Risk Management Dead?

Veröffentlicht amJanuar 23, 2021Januar 23, 2021

For some time now we heard the story about quantitative risk management and why it is so much better than our old loss-times-probability, green-yellow-red approach. …

Retro Computing

Replacing Commodore C128D Fan

Veröffentlicht amJanuar 8, 2021Januar 8, 2021

My Commodore C128D computer (plastic case) from way back had an annoying fan that sounded like a VAX 11/780 starting up. I just found out …

Retro Computing

Shooting Stars 2.1 published

Veröffentlicht amNovember 14, 2020November 14, 2020

I finished writing code for version 2.1 of the demo game Shooting Stars. As one probably noticed, the main loop in version 2.0 looked quite …

Security

Security Information Overload

Veröffentlicht amNovember 14, 2020November 14, 2020

In his 1945 visionary article „As We May Think„, Vannevar Bush described the information overload happening in the scientific world at that time: „There is …

Security

Dear Unknown Cyber Hacker,

Veröffentlicht amNovember 5, 2020November 5, 2020

This is not the first time I am receiving an email from you. Thanks for including me in your conversation! With you representing the Sparkassenverbände …

Retro Computing

Shooting Stars 2.0 published

Veröffentlicht amOktober 27, 2020Oktober 27, 2020

I had difficulties learning assembly from existing games, as these are typically too complex for me, contain too many lines of code, and sometimes require …

Retro Computing

Using and understanding raster interrupts on the C64

Veröffentlicht amOktober 18, 2020Oktober 18, 2020

There is an excellent article about using and understanding raster interrupts on the C64 at https://www.retro-programming.de/programming/nachschlagewerk/interrupts/der-rasterzeileninterrupt/. Joern does a very good job in explaining how this …

Retro Computing

ShootingStars

Veröffentlicht amAugust 25, 2020August 25, 2020

I just uploaded my very first C64 assembler game to https://github.com/jklingel/ShootingStars. I know the code is very crude but I tried to keep it as …

Retro Computing

Dokumentation zum MOS 6567/6569 Video Interface Controller (VIC-II) Chip

Veröffentlicht amAugust 1, 2020August 1, 2020

Immer noch aktuell und gültig, daher von mir in ein überarbeitetes Format gepackt, welches man leichter ausdrucken und studieren kann: „The MOS 6567/6569 Video Controller …

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