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Sun Position Calculator 2.0   [2020]

Sun Position Calculator 2.0 Released by :
Hokuto Force [web]

Release Date :
8 December 2020

Type :
C64 Tool

AKA :
Sonnenstandsrechner

User rating:awaiting 8 votes (2 left)   See votestatistics

Credits :
Code .... Bytebreaker of Hokuto Force
Design .... Bytebreaker of Hokuto Force
Idea .... Bytebreaker of Hokuto Force

Download :
http://csdb.dk/getinternalfile.php/206588/astro2zN_en.d64 (downloads: 123)
http://csdb.dk/getinternalfile.php/206590/Precision_Comparisons.zip (downloads: 52)
http://csdb.dk/getinternalfile.php/206589/astro2zN_de.d64 (downloads: 49)

Look for downloads on external sites:
 Pokefinder.org


User Comment
Submitted by ZIG on 12 December 2020
This is cool.
User Comment
Submitted by TWW on 8 December 2020
I know I am weird, but I think this is really cool.
User Comment
Submitted by Bytebreaker on 8 December 2020
Version 2.0 comes up with a much better precision. The algorithm for sunrise/sunset calculation has been rewritten. If you look at the Precision_Comparisons.zip you will see that the 4 byte float values of the c64 are very close to the 8 byte float values of the 64bit reference application I used.

Furthermore, the overall usability has been improved and there is also a daylight saving time / winter time calculator for German users. It is still not possible to auto-recognize dst / std time deviation for a given location, but you can still use the calculator and then adjust manually in the input dialog.

I know this is no fancy intro or demo, but on the other hand I wanted to prove that you can use a C64 for this kind of application with a relatively high precision.
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CSDb (Commodore 64 Scene Database) is a website which goal is to gather as much information and material about the scene around the commodore 64 computer - the worlds most popular home computer throughout time. Here you can find almost anything which was ever made for the commodore 64, and more is being added every day. As this website is scene related, you can mostly find demos, music and graphics made by the people who made the scene (the sceners), but you can also find a lot of the old classic games here. Try out the search box in the top right corner, or check out the CSDb main page for the latest additions.
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