Hrvoje Cavrak's Avatar

Hrvoje Cavrak

@hrvoje.org

Geek, dev, sysadmin. Production engineer @ fb by day, maker and retro computing enthusiast by night. Fan of FPGAs, C, low-level stuff.

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07.02.2024
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Latest posts by Hrvoje Cavrak @hrvoje.org

Welcome to Croatia! Fun fact - during the Republic of Dubrovnik, when a certain wind blew ("Jugo"), no political decisions were made and courts were supposed to be more lenient towards crimes committed during this period :)

16.05.2025 20:26 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

How old are you? "Used ARJ, ARC and LHA" kind of old.

04.03.2025 14:14 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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When you major in pharmaceutics and minor in computer science :)

28.12.2024 19:17 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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A geeky way to wish y'all a Merry Christmas - by drawing a tree using x86 asm. Runs in QEMU as a bootloader, uses int 10h and reminds me of CRT glow and days long gone. Too bad I don't have a CRT to try it on. Happy holidays, everyone!

b3 af ba 11 0e b4 13 cd 10 41 41 fe c6 20 de fe ca 75 f2

25.12.2024 22:31 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Awesome! You always manage to teach components do things they were never ever supposed to :)

18.12.2024 13:35 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Allwinner f1c100s, costs 2-3โ‚ฌ, integrated 32MB RAM, runs Linux and can be convinced to boot in well under a second! It would be very cool if @raspberrypi.com considered something like this for their future product line... :)

02.12.2024 12:03 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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๐Ÿ˜‹ Wooo, got OSHW certified for a project.
certification.oshwa.org/de000149.html

25.11.2024 20:52 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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GitHub - hrvach/pdpong: Pong in PDP-1 assembly Pong in PDP-1 assembly. Contribute to hrvach/pdpong development by creating an account on GitHub.

For anyone interested, the entire source code for the PDP-1 Pong game is available at:
github.com/hrvach/pdpong in a very, very weird assembly language :)

20.11.2024 13:09 ๐Ÿ‘ 9 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Found a cool clip from 2022 - playing my own game on a computer made over 60 years ago. And it works!

16.11.2024 12:56 ๐Ÿ‘ 8 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0