gzalo
gzalo on Hacker News
Most people would say that Ahead-of-time (AOT) compilation or static recompilation is not considered traditional emulation.
I think concepts from impedance matching could also be loosely applied to other areas, for example:
- How veins in organisms branch out to give "energy" to different areas while being the right size for the required supplies
- How people can adapt and communicate with simpler words but taking more time. The optimum is when both parties are "matched"
- Information theory, data across a channel needs to be sent at a rate lower than its capacity, otherwise it's "rejected"
- In organizations, when a message needs to be passed from one area to another one, each impedance mismatch between individuals can lead to some "information bounce" and make it harder to get a message/idea across
- When politics adopt a measure, there's an impedance mismatch when people aren't fully onboard
It's a bit methaphorical but the overall idea is that efficient transfer across an interface requires compatibility between the source and destination. Incompatibilities produce some sort of "reflections", "distortions" or "backpressure".
Nvidia already did something similar with Lite Hash Rate (LHR), limiting performance on purpose just when running mining apps...
I know, but part of the logic from below the line I linked could have been deterministic, it could benefit from a single "load skill" tool that just loads the files client side!
Yes you can, see
https://neslcdmod.com/It basically mods the rom to allow for a bit more latency when checking the hit targets
Posted by
gzalo on Wednesday January 14, 2026 @08:57PM
from the show-hn dept.
https://gzalo.github.io/microcomputer/
I designed and built a physical replica of a 1970s-style front panel microcomputer with 25+ toggle switches, 16 LEDs, and an LCD display. The brain is a Raspberry Pi Pico running an Intel 8080 CPU emulator.The main twist: I decided to see how far I could get using Claude Code for the firmware. That and the web emulator were written almost entirely using Claude Code (Opus 4.5). I've kept the...
The bad part is that it cannot create a world wide mesh, as has a low max hop limit (7), and the nodes need lines of sight. So more than 200 km in a mostly flat city is almost imposible.
I wish we had an HF ISM band that could be used for this purposes without needing a license, combined with LoRa radios would yield great results
Hmm, it's a clever hack, but they would use an oscilloscope with an "External trigger" input, like most of the older Rigols. That would let you use the full sample rate without needing to trigger from CH2
Posted by
gzalo on Monday June 02, 2025 @11:40PM
from the youtube.com dept.
I agree, this can also detect brittle tests (e.g, test methods/classes that only pass if executed in a particular order). But applying it for all data could be expensive computation-wise
Indeed, if you search for "ceramic antennas" you'll see that they are already being used and smaller than equivalent PCB antennas. They rely on a dielectric material with high e_r, which implies that speed of light is slower there.
Lots of portable devices use them nowadays!
Not really. The username from the commits is the same one that created the PR.
The username evildojo666 was available and the attacker just used it.
Yes, in the games category you can find some. But for playing the classic fully fledged games I suggest something like
https://flashpointarchive.org/ , which is more organized
Posted by
gzalo on Monday November 11, 2024 @12:41PM
from the show-hn dept.
https://flashkitty.gzalo.com/
After realizing a few months ago that the current flashkit owners didn't really back up any of the user submitted movies, and getting some Flash nostalgia, I created this working Flash Kit archive using data from the Wayback Machine/Internet Archive.
It uses Raffle so you can watch the submitted movies in a modern browser without needing plugins.It's not curated so you'll find a variety of...
I wonder if it's feasible to make diy Thermal paper using lemon juice, like the old "invisible ink experiment"
Update: The support team was able to remigrate all of the cards :D so issue solved. Thanks for the support!
Posted by
gzalo on Saturday September 07, 2024 @12:05PM
from the self-post dept.
I've been using github projects for a few years now, mostly to track ideas and ToDos for side projects.A few weeks ago GH sunsetted the classic github projects: https://github.blog/changelog/2024-05-23-sunset-notice-projects-classic/This caused me to permanently lose some list of ideas and ToDos I had, because they handled the migration really poorly:- They never sent any warnings via emails...
Interesting idea, but keep in mind that older laser-based barcode readers don't work when reading from an LCD screen
Fair enough, if it supports being charged using any port that is reasonable. I would assume that the notebook has some other internal 5v regulator, maybe for the embedded controller or some other legacy device
I don't get the point of designing and building a 3.3 to 5v booster instead of just wiring a cable to one of the existing USB C vbus 5v pins? Am I missing something?
If the symbol frequency is known beforehand and fixed for all messages, it's not really i.i.d, as each distribution depends on the previous symbols.
No-name phones end up using chipsets/radios from varios manufacturers: unisoc, broadcom, mediatek, rockchip, ...
They can just grab a reference schematic and pcb and tune it a bit and get it manufactured. They all use mostly the same interfaces and protocols, like mipi dsi for lcds, so they can have many almost drop-in alternatives to choose depending on availability.
For printheads, it's likely that there are no common standards, each manufacturer has it's own head-cartridge interface, so it's probably more expensive to remain open to changes, reducing the potential profits
Too bad it's still a closed-source dominated industry :( There's not even any low level documentation of their programming bitstreams
With the difference that it keeps the font monospaced (in average), and usually kerning doesnt change shapes
Posted by
gzalo on Saturday October 28, 2023 @05:15PM
from the flashparty.ar dept.
The event has started a few hs ago and is now streaming live here:
https://www.twitch.tv/flashpartyok(I'm not part of the organization, just submitted some entries there)