jhallenworld

6 ms·

31.
by jhallenworld 6mo ago
A somewhat little know part is a "pre-biased transistor": this is a bipolar transistors with built-in resistors, and will often work as a drop-in replacement for a logic-level MOSFET (like 2n7000), but is an order of magnitude che
32.
by jhallenworld 6mo ago
Byte's first mention of the 6502 (6501) I think: https://archive.org/details/byte-magazine-1975-11/page/n57/m...
33.
by jhallenworld 6mo ago
Now do a dynamic scheduling out of order engine with renaming, 20 pipes, speculative execution and hundreds of instructions in flight. I guess you could make a multi-person game for this.
34.
by jhallenworld 6mo ago
I want to make something like this as a classic CPU ICE, with trace memory, disassembly, etc. (note that you need a crystal oscillator circuit for many CPUs- 6802, 8085, etc.) It would be useful for debugging classic computers like Altair
35.
by jhallenworld 7mo ago
How well do commodity systems protect your financial transactions from cosmic ray-induced bit errors?
36.
by jhallenworld 7mo ago
I thought it was big time defamation risk for Afroman to call him a pedofile.. but maybe the cop is afraid of discovery in this case..
37.
Use GPT-5.4/CODEX to reverse engineer ancient machine code(github.com)
1 points by jhallenworld 7mo ago|1 comments
38.
by jhallenworld 7mo ago
I gave it the .S19 file containing the EDOS resident 6800 FORTRAN compiler machine code and asked it to reverse engineer it. It wrote a disassembler in Python along the way.
39.
Bill Gate's Comes Clean(wabcradio.com)
2 points by jhallenworld 8mo ago|2 comments
40.
by jhallenworld 8mo ago
>The biggest danger of a nuclear weapon is being hit by flying debris. I thought it was being burned alive in the resulting firestorm because the intense light starts fires over a large area: way beyond the blast zone. This risk could b
41.
by jhallenworld 8mo ago
Colossus/Guardian was the first AI to realize that the humans could be easily coerced by using their own nukes against them. From the Colossus: The Forbin Project (1970) film.
42.
by jhallenworld 8mo ago
>NCO: 12 Numerically Controlled Oscillators generate carrier frequencies (505–1605 kHz) This seems like a crude way to do it.. why not provide all 110 carrier frequencies by using a polyphase channelizer? The bandwidth of the entire AM
43.
by jhallenworld 8mo ago
Adding EXORdisk-I support to my MC6800 simulator so that it can boot EDOS and EDOS-II disks. EDOS was a direct 6800 port of FDOS. FDOS was the first DOS available for microcontrollers, using iCOM's FD360 8-inch floppy drives. https:&
44.
by jhallenworld 8mo ago
Does it make a conforming preprocessor?
45.
by jhallenworld 8mo ago
It's like those articles that say super high IQ people are not always successful. So I think human brain development is like some kind of optimization algorithm, like simulated annealing or gradient descent. I think this because there
46.
by jhallenworld 8mo ago
The receiver is like the asset tag on computer servers- it's the one thing that is definitely not replaceable since it has the serial number used for entitlement.
47.
by jhallenworld 8mo ago
If the end product ends up marginally cheaper, the company will be able to sell more of it, and this will lead to more profit. And sure, when you ignore the cost of the pollution, this certainly benefits the consumer, by allowing them to a
48.
by jhallenworld 8mo ago
Lead helped fuel company profits because it was cheaper than the other anti-knock additives, like ethanol.
49.
by jhallenworld 9mo ago
I have been using Walter Bright's libc code from Zortech-C for microcontrollers, where I care about code size more than anything else: https://github.com/nklabs/libnklabs/blob/main/src/nkprintf_
50.
by jhallenworld 9mo ago
Agree, use Linux, use LUKS. PGP WDE was a preferred corporate solution, but now you have to trust Broadcom.
51.
by jhallenworld 9mo ago
I mean a separate chip.
52.
by jhallenworld 9mo ago
Do you really need a TPM if you have something like ARM TrustZone?
53.
by jhallenworld 9mo ago
>V8 emits a near-jump for all forward jumps. If the target ends up too far away, the near-jump target is adjusted to a jump pool entry that contains a long-jump to the actual target This sounds weird to me... Why not assume that all jum
54.
by jhallenworld 9mo ago
They only want the screen for the stereo and backup camera, not anything else. It's easier to update a car from 2004 say to have Android Auto than to fix one made in 2024 that doesn't have it. $400 aftermarket stereo from crutch
55.
by jhallenworld 10mo ago
Imagine a world where you can click on references in your paper and have them immediately come up, like the rest of the web. This can be done today: Always provide a DOI-style link, for example: https://doi.org/10.1088&#x2F
56.
by jhallenworld 10mo ago
I'm not blaming you. By providing links, your citations go beyond what is required for academic papers. Would it be rude to print the link " https://doi.org/10.1016/0005-1098(83)90046-8 " but actually link
57.
by jhallenworld 10mo ago
Come on IEEE...
58.
by jhallenworld 10mo ago
So this link is interesting for a different reason: look at the references at the end of the paper. It's awesome that the references include URLs. IMHO, old papers should all be updated to include such hyperlinks. I'm pleased th
59.
by jhallenworld 10mo ago
I've used it on a tiny microcontroller because libc's quicksort was huge.
60.
by jhallenworld 10mo ago
I think the driving force behind the look of the recent mainframes is from IBM's Italian designer, Camillo Sassano: https://www.idsa.org/profile/sassano/ Well there's a whole group, but Camillo is the gu

More ›