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The obsolescence of IFFL

By admin Posted on February 19, 2020 Posted in 6510, Code
The obsolescence of IFFL

So what is IFFL? IFFL is the technique to link disk data. Since the drive allocates a full sector as a minimum, the last sector is statistically only half full. So if you merge several files into a bigger one, …

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Fibaro – two triggers and time interval

By admin Posted on December 30, 2021 Posted in Uncategorized Tagged with Fibaro, hc3

I wanted to implement a scenario with two different motion sensors triggering a single lamp. But I wanted to ensure that this behavior was only applicable during a special time interval. The solution looks like this (and please mind that …

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Some rarely used 6502 aspects

By admin Posted on January 7, 2021 Posted in 6510, C64, Code, Commodore64

I am by no means any professional programmer, but I have coded 6502 since the late 80s and can safely say that I have a lot of experience. My main focus throughout all these years has been to reverse other …

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C64 Disk drive access

By admin Posted on January 1, 2021 Posted in 6510, C64, Code, Software Tagged with #c64

(Seems my theme shows Code as black text on black background – will fix that eventually 😉 There are always aspects of c64 programming that you haven’t tested and exploring it is also a new learning. Assuming things that turn …

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C64 graphics – a quick reference

By admin Posted on December 7, 2020 Posted in 6510, C64

The VIC is the chip in a c64 that handle all graphics. Whereas the CPU sees all of the memory, the VIC only sees 1/4. We call that a VIC bank or graphics bank. Default is $0000 to $3fff – …

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C64 character encoding

By admin Posted on March 28, 2020 Posted in C64, Operating System

The commodore 64 has two character encoding schemes; Petscii and screencode. Petscii is what you use when you print using the standard $ffd2 charout print routine and screencodes is what you use when you poke the values directly to the …

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Brands and right

By admin Posted on January 30, 2020 Posted in Law, Piracy, Trademarks Tagged with brand, law, trademarks
Brands and right

Many people are loyal to certain brands and trademarks, and associated themselves with certain brands. Buying all the stuff in the categories that the brand is active. But what if the brand is an old one, and no longer really …

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VICE logging

By admin Posted on December 5, 2019 Posted in 6510, Code, VICE
VICE logging

Yes, yes, yes … One of the features I missed the most is not in VICE, as per one of the most recent builds (one of the last builds before 3.3 becomes 3.4). Logging to file. Quite often when I …

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Fibaro controlling Hue

By admin Posted on December 4, 2019 Posted in Home Automation Tagged with Fibaro, HomeAutomation

I just covered the topic in a group on Facebook, and might as well cover it here as well so it’s public also to non-swedes. The question was how to control the Hue lights from scripts. There is a requirement …

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Building Vice emulator – NO black magic needed!

By admin Posted on October 25, 2019 Posted in 6510, C64, Code, Commodore64, VICE Tagged with c64, emulator, VICE
Building Vice emulator – NO black magic needed!

Being rather tech savvy but still not working with software, the entire field of source repos and management of them has been a field where I felt my competence was really blurry. Adding to this, I hear from many sources …

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