s-macke

35 ms·

391.
by s-macke 11y ago
I did for my emulator jor1k. Take a look: https://github.com/s-macke/jor1k/blob/master/js/worker/or1k/... Handwritten asm.js code. Around 10 hours or porting time.
392.
by s-macke 12y ago
If someone is interested in the de-obfuscated code take a look in the source here: http://simulationcorner.net/endoh.html
393.
by s-macke 12y ago
It would be nice to combine such a project with a Linux emulator like http://s-macke.github.io/jor1k/demos/compile.html Of course the total loading time for the website would increase. But if use such a website yo
394.
SpaceChem Brainfuck Interpreter (2012)(youtube.com)
4 points by s-macke 12y ago|0 comments
395.
by s-macke 12y ago
As the developer of jor1k I agree. You should also mention https://github.com/copy/v86 , which is constantly developed.
396.
by s-macke 12y ago
Thanks, will probably buy it.
397.
by s-macke 12y ago
Since I played "Kennedy Approach" on the C64 I dream of such a voice recognition ATC simulator. I have planned to program my own with such a limited vocabulary since more than 10 years. Well, in my next live then.
398.
by s-macke 12y ago
Put it this way. We have only one earth and we are extremely limited to a certain external conditions like temperature, pressure, atmosphere composition, soil, water, .... The climate is a non-linear chaotic model and no one really knows wh
399.
by s-macke 12y ago
When I see such a tutorial I am always thinking of those online Linux emulators. You can write tutorials for such terminal programs and use those emulators for real examples.
400.
by s-macke 12y ago
I am still fascinated by the sheer number of RISC CPUs out there. But more amazing than this is their similarity. I think we should develop a new (abstract) RISC CPU which combines all in one architecture :-) . Joking apart, as a developer
401.
by s-macke 12y ago
Not yet. But when shared memory arrays become available in Javascript it will be useful. But take a look here: http://s-macke.github.io/jor1k/compile.html So you can use it in a C programming course for SMP systems. Op
402.
by s-macke 12y ago
Just some technical details: The cores are emulated in one worker thread because shared memory in threads is still not supported by the engines. You can use "htop" to see the cores at work. You can run a multithreaded fractal gen
403.
Show HN: OpenRISC JavaScript emulator emulates up to 16 cores(github.com)
43 points by s-macke 12y ago|8 comments
404.
by s-macke 12y ago
Thanks, found a helpful link: http://stackoverflow.com/questions/16071211/using-transferab... Is this a standard, that you can share a buffer? Will it work in all browsers?
405.
by s-macke 12y ago
Nice explanation. I had some similar problems with my project found here: http://simulationcorner.net/Sidplayer/index.html In the end I had to use the queuing of AudioBufferSourceNodes as explained. In Chrome I could u
406.
by s-macke 12y ago
Thanks for the nice description! For my small Linux emulator I put the link in the Wiki after "Destroy the system" :) https://github.com/s-macke/jor1k/wiki/Explore-the-emulator#r... The system runs
407.
by s-macke 12y ago
No, I don't use requestAnimationFrame right now. I think when I wrote it, it was not supported by IE. But can't remember. I calculate as close as the machine can but with a window.setTimeout(Update, 0); in order to be responsive.
408.
by s-macke 12y ago
The graphics were impressive, but the gameplay never touched me. Comanche 3 was much better.
409.
by s-macke 12y ago
Don't know. But here some possibilities: 1. No fullscreen 2. I update the screen only if a key is pressed.(No rain, that has to be rendered all the time) 3. I don't use any costly canvas functions. I render everything myself in a
410.
by s-macke 12y ago
Hey thanks, that was fast.
411.
by s-macke 12y ago
My raycast engine in Javascript needs a few more lines and works a little bit different, but gives also impressive results I think :) . http://simulationcorner.net/index.php?page=comanche
412.
by s-macke 12y ago
Don't forget the first rendered fur. http://simulationcorner.net/fur.png The bear looks still so nice. Even nowadays The picture is from this paper from 1989: http://dl.acm.org/citation.cfm?id=74361
413.
by s-macke 13y ago
You describe a very abstract type of a synapse. Nature is more complex than this. I think it's just a definition problem. What do we mean with modeling a brain? Is it the same like modeling a neuronal network? On which level do we defi
414.
by s-macke 13y ago
Well, of course. I would suggest paq8l ;) I think you can store very efficiently. A neuron or synapse has a huge error rate. So, saving parameters of the synapse as 4 byte floating point number could be overkill. Connection information coul
415.
by s-macke 13y ago
I am not sure, but after looking at their sites they probably mean images. So, a synapse in a let's say high resolution jpeg will need much more memory than my abstract definition of a synapse.
416.
by s-macke 13y ago
What is your guess about the amount of memory needed to save a human brain. I mean all necessary information to save the personality. The article mentions 98,000 petabytes. But does this contain everything? In Wolfram alpha and Wikipedia yo
417.
by s-macke 13y ago
Well, I think it is part of the table. http://codebase64.org/doku.php?id=base:fast_8bit_multiplicat... But the C64 had also a shifting operation.
418.
by s-macke 13y ago
This reminds of another trick on the C64 to multiply two 8 Bit numbers a*b = [ ((a+b)/2)^2 - ((a-b)/2)^2 ] more or less: one 8 bit additon, one 8 bit subtraction, two table lookups for the squares and one 16 bit subtraction.
419.
by s-macke 13y ago
That's really great. Did you use emscripten or is the renderer programmed in Javascript?
420.
by s-macke 13y ago
I think it is possible to get exactly 64Kb - 2 byte. The first two byte should not be written randomly as they tell the system whether it should include the ROM or not. If you use interrupts then the top few bytes (2 or 4 bytes, can't

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