PDP-1 recreated in FPGA plays Spacewar! - first real computer game. hrvach 2018-12-20 | Hello! This is FPG-1, a hobby project doing a DEC PDP-1 computer implementation in FPGA (more details at github.com/hrvach/fpg1). It's made for the MiSTer retro gaming system. The video you are seeing is recorded from the on-board HDMI output by using AverMedia EzRecorder and used to make this demonstration. Thanks a lot for visiting! The music used is attributed to Bensound.
DeskHop PCB Assembly Guide hrvach 2024-01-02 | This video shows how to solder, flash and assemble DeskHop (github.com/hrvach/deskhop) - a fast and easy keyboard and mouse switching device. Please note my soldering skills (and eyesight) are not that great :)You need to clean your PCB after soldering to get the flux off. Use isopropyl alcohol and an old toothbrush. I didn't show this in the video because ... old toothbrush :)
Tribute to Sir Clive Sinclair hrvach 2021-09-17 | Here is a short ZX Spectrum loader image made to commemorate the man who brought a computer into many children's homes for the first time. A true pioneer and a visionary - Sir Clive Sinclair.
Slash - Anastasia intro cover hrvach 2021-09-06 | Just a quick attempt, can't get this cool lick out of my head. It's sort of a neoclassical crossover between Sweet Child O' Mine and J.S. Bach.
Oliver - Tko sam ja da ti sudim [Improvisation] hrvach 2021-02-16 | 11 years ago, in a galaxy far, far away...
Tic Tac Toe in MySQL hrvach 2020-05-20 | A video demonstration for an old project of mine - how to make Tic Tac Toe game with nothing but MySQL. :) More details at blog.hrvoje.org/blog/2014/10/05/tic-tac-toe-in-dot-dot-dot-mysql
EDSAC - 1949 computer made with FPGA, plays ancient game hrvach 2020-05-13 | EDSAC recreation in FPGA for the MiSTer board/console. Tape reader, teletype and a front panel concept make it possible to run software from 1949. Thanks for watching! If you want to read more about it, go to github.com/hrvach/EDSAC
FPGA Game Of Life, 1080p @ 60fps hrvach 2020-04-25 | To honor John H. Conway who recently passed away from Covid-19, I've created a simple FPGA Game of Life variant pushing 1080p at 60 fps. The patterns are so amazing to watch, very smooth at 125 million cells per second. github.com/hrvach/Life_MiSTer
PDP-1 Plays J.S.Bach - Concerto I 3rd mvt BWV 592 hrvach 2020-02-08 | FPGA based PDP-1 implementation with additional support for extended memory plays a classical piece by J.S. Bach. Music originally entered as a symbolic language input compiled to bit-banging code that manipulated a register whose outputs were directly fed into the amplifier. Impressive polyphony and effects for a computer designed in 1959, and even more impressive for the actual software by Peter Samson making this possible.
Pong game on the *original* PDP-1 hrvach 2019-04-15 | The good people of the Computer History Museum ran my Pong implementation on the original hardware and it appears to run!
Eine kleine FPGA musik hrvach 2019-01-19 | PDP-1 music playing capabilities tested on the FPGA (github.com/hrvach/fpg1) implementation. For a machine designed in 1959, it's unbelievable what it can do. Music is being output through what would today be referred to as GPIO pins. This is not a software simulation but an actual music playing program from a real PDP-1.Hats off to Peter Samson for teaching the PDP-1 how to play music and to Daniel P. Smith who transcribed the piece! Disclaimer: sound not in sync with video, reverb added in post-processing. Program flags are drawn backwards - it's a bug. :)
Orao MiSTer core hrvach 2018-12-31 | Original PEL demo tape for the Orao computer loaded. Please turn your speakers down, the audio track contains FSK modulated audio of the data loading which could annoy you. :-)
Espple - ESP8266 Apple 1 emulator with *wireless* video hrvach 2017-12-28 | This is an Apple 1 emulator made for the ESP8266, but with a twist - it generates its own PAL video directly and you can tune into it on your living room TV. More details: github.com/hrvach/esppleIt just goes to proof how amazingly powerful the ESP8266 is, as well as to demonstrate the genius of Stephen Wozniak.
Cesarica - Akustična gitara, instrumental hrvach 2013-07-09 | Malo zafrkancije s gitarom u kupaoni. :-) Odsvirano otprilike, po sjećanju, uz par fulanaca...
ECG test #1 - Without notch filter hrvach 2013-03-09 | This is a homemade Android single channel ECG telemetry prototype I'm trying to make. Its main purpose is monitoring arrhythmias. Once finished, schematics and firmware will be released under an open source license. Sadly, I cannot make a Kickstarter project out of it because I'm not an American citizen, but hopefully it will get done nevertheless.It's based on Analog Devices AD624 instrumentation amplifier, LF411 op-amp, USB powered using a very cool Maxim MAX680 voltage inverter/doubler chip and filtered using MAX264 digital filter. A/D conversion will be done using a PIC 18f4550 which will also be used to tweak the filter in software during development. Next iteration should be simpler in construction. :)
GNR - Knocking On Heavens Door - 1st Solo Cover hrvach 2012-11-14 | A quick take on this fantastic solo by Slash. Thanks for listening!
Sultans Of Swing 1st Solo - Cover hrvach 2012-11-11 | Just me fooling around, trying to find a vintage Strat sound. Thanks for listening!
November Rain Solo Guitar Cover hrvach 2012-03-24 | Testing an used Epi LP Studio, just a quick attempt at this fantastic solo by the one and only Slash. Please excuse my mistakes and thanks for watching!
Parni Valjak - Dok si pored mene [Solo] hrvach 2011-05-14 | Quick attempt at this great piece by Croatian band Parni Valjak. Thanks for listening!
California Dreaming short improvisation hrvach 2010-12-12 | Fooling around with my acoustic after checking out the wonderful interpretation of this piece by Michael Chapdelaine. Tried to improvise a part of it since the original totally blew me off. Please make sure to check out his playing, it's awesome!
Prljavo Kazalište - Pisma Ljubavna [Guitar cover] hrvach 2010-09-18 | Jedan tejk iz zafrkancije. Hvala na slušanju!
Roxette - Listen To Your Heart (Acoustic cover attempt) hrvach 2010-06-11 | Just a quick and short attempt inspired by Igor Presnyakov. Make sure to check out his version, surely one of the best guitarists on Youtube.
Fantomi - Sretan Ti Rođendan [Almighty Band Cover] hrvach 2010-06-02 | Brzinski pokušaj s posvetom! Burki, sretan rodjendan! :)
Atomsko Sklonište - Žuti Kišobran [Almighty band cover] hrvach 2010-04-19 | Sorry ekipa, malo je loš sound jer se kamera baš ne snalazi s glasnom muzikom. Hvala na slušanju.
Kao ja da poludis cover hrvach 2010-02-27 | Prvi put smo se sastali i probali zapiciti ovu stvar od prljavaca. Nadam se da ju nismo previse potrgali :) Vokal se slabije čuje jer je razglas sa stražnje strane kamere pa mikrofon slabije lovi. Hvala na slušanju!
Smoke On The Water [Guitar Solo] hrvach 2010-02-03 | This is a single take quick attempt at the guitar solo from this great song (as I remember it), of course with some mistakes. Thanks for listening, greetings from Croatia!
Parni Valjak - Moja je pjesma lagana [ZeKaeM, gitarski solo] hrvach 2010-01-16 | Malo guštanja uz uvjerljivo najbolji unplugged album svih vremena na ovim prostorima.
Prljavo Kazalište - Da mogu ispočetka [Gitarski solo] hrvach 2010-01-16 | Ovo je brzinski pokušaj skidanja sola sa ove odlične stvari Prljavog Kazališta. Sorry na greškama i ostavljenoj kameri na pojačalu, bassevi zvone kad zarezonira kućište... Hvala na pažnji!
Parni Valjak - Zastave [Solo Cover] hrvach 2010-01-16 | Skinuo sam otprilike kako mi se činilo da bi moglo ići, sorry na greškama i ostavljenoj kameri na pojačalu, basevi zvone :)
U Prolazu - Parni Valjak Unplugged [Uvod + Solo] hrvach 2010-01-14 | Moj skromni pokušaj djelomične interpretacije jedne od (meni) najboljih stvari sa zekaem albuma. Sorry na greškama i hvala na slušanju.
Ja u ljubav vjerujem - Parni Valjak [Guitar Solo] hrvach 2010-01-13 | Isprobavam novu gitaru, solo od parnog valjka... hvala na pažnji!
Sve još miriše na nju - Uvod i Solo hrvach 2010-01-13 | Malo zafrkancije sa novom gitarom. Sorry na greškama :-)
Under The Bridge - Guitar Cover hrvach 2010-01-13 | Just fooling around with some RHCP and testing my new strat. Thanks for listening, hope you'll excuse my mistakes!
Smoke On The Water - Main Riff hrvach 2009-12-16 | Everybody who plays guitar must do this once so here is my take :-)
Maloj Ptici S Juga - Parni Valjak, Cover hrvach 2009-11-17 | This is a cover of a very dear song to me originally performed by Croatian band Parni Valjak. I played along one of their live performances and tried not to spoil it too much. There is a solo around 1:22 so it's not all that boring! :-) Thanks for listening!
Gibonni - Tempera Cover hrvach 2009-11-16 | This is a one-take attempt at a very nice song called Tempera by Gibonni. Please excuse my mistakes since my guitar has VERY hard strings and thanks for listening.
Badnje Vece Cover hrvach 2009-11-11 | This is a short acoustic cover of Badnje vece by Djordje Balasevic. Sorry for all the mistakes and thanks for listening!
Joe Satriani Crying Cover hrvach 2009-11-05 | Sorry - no video. Played with a backing track, my guitar wasn't really up to the job since it's a chinese telecaster copy, nor I am a player skillful like Joe but thanks for listening. Have fun!
Tears In The Rain - Acoustic Cover hrvach 2009-09-29 | This is me fooling around with Tears in the rain by Joe Satriani. Hope I didn't hurt the original too much.
I Can See Clearly Now - Acoustic Instrumental Cover hrvach 2009-08-26 | This is just a shortened one-take acoustic version of me fooling around with "I can see clearly now", and my little dog is barking in the background. Hopefully he likes it! :)
